TY  - JOUR
AU  - Milikić, Jadranka
AU  - Savić, Marjetka
AU  - Janošević Ležaić, Aleksandra
AU  - Šljukić, Biljana
AU  - Ćirić-Marjanović, Gordana
PY  - 2024
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/13028
AB  - For the first time, composites of metal-organic framework MOF-5 and conjugated polymer polyaniline (PANI), (MOF-5/PANI), prepared using PANI in its conducting (emeraldine salt, ES) or nonconducting form (emeraldine base, EB) at various MOF-5 and PANI mass ratios, were evaluated as electrode materials for the electrochemical detection of cadmium (Cd2+) and lead (Pb2+) ions in aqueous solutions. Testing of individual components of composites, PANI-ES, PANI-EB, and MOF-5, was also performed for comparison. Materials are characterized by Raman spectroscopy, scanning electron microscopy (SEM) and dynamic light scattering (DLS), and their electrochemical behavior was discussed in terms of their zeta potential, structural, morphology, and textural properties. All examined composites showed high electrocatalytic activity for the oxidation of Cd and Pb to Cd2+ and Pb2+, respectively. The MOF/EB-1 composite (71.0 wt.% MOF-5) gave the highest oxidation currents during both individual and simultaneous detection of two heavy metal ions. Current densities recorded with MOF/EB-1 were also higher than those of its individual components, reflecting the synergistic effect where MOF-5 offers high surface area for two heavy metals adsorption and PANI offers a network for electron transfer during metals’ subsequent oxidation. Limits of detection using MOF/EB-1 electrode for Cd2+ and Pb2+ sensing were found to be as low as 0.077 ppm and 0.033 ppm, respectively. Moreover, the well-defined and intense peaks of Cd oxidation to Cd2+ and somewhat lower peaks of Pb oxidation to Pb2+ were observed at voltammograms obtained for the Danube River as a real sample with no pretreatment, which implies that herein tested MOF-5/PANI electrodes could be used as electrochemical sensors for the detection of heavy metal ions in the real water samples.
T2  - Polymers
T1  - Electrochemical Sensing of Cadmium and Lead Ions in Water by MOF-5/PANI Composites
VL  - 16
IS  - 5
SP  - 683
DO  - 10.3390/polym16050683
ER  - 

@article{
author = "Milikić, Jadranka and Savić, Marjetka and Janošević Ležaić, Aleksandra and Šljukić, Biljana and Ćirić-Marjanović, Gordana",
year = "2024",
abstract = "For the first time, composites of metal-organic framework MOF-5 and conjugated polymer polyaniline (PANI), (MOF-5/PANI), prepared using PANI in its conducting (emeraldine salt, ES) or nonconducting form (emeraldine base, EB) at various MOF-5 and PANI mass ratios, were evaluated as electrode materials for the electrochemical detection of cadmium (Cd2+) and lead (Pb2+) ions in aqueous solutions. Testing of individual components of composites, PANI-ES, PANI-EB, and MOF-5, was also performed for comparison. Materials are characterized by Raman spectroscopy, scanning electron microscopy (SEM) and dynamic light scattering (DLS), and their electrochemical behavior was discussed in terms of their zeta potential, structural, morphology, and textural properties. All examined composites showed high electrocatalytic activity for the oxidation of Cd and Pb to Cd2+ and Pb2+, respectively. The MOF/EB-1 composite (71.0 wt.% MOF-5) gave the highest oxidation currents during both individual and simultaneous detection of two heavy metal ions. Current densities recorded with MOF/EB-1 were also higher than those of its individual components, reflecting the synergistic effect where MOF-5 offers high surface area for two heavy metals adsorption and PANI offers a network for electron transfer during metals’ subsequent oxidation. Limits of detection using MOF/EB-1 electrode for Cd2+ and Pb2+ sensing were found to be as low as 0.077 ppm and 0.033 ppm, respectively. Moreover, the well-defined and intense peaks of Cd oxidation to Cd2+ and somewhat lower peaks of Pb oxidation to Pb2+ were observed at voltammograms obtained for the Danube River as a real sample with no pretreatment, which implies that herein tested MOF-5/PANI electrodes could be used as electrochemical sensors for the detection of heavy metal ions in the real water samples.",
journal = "Polymers",
title = "Electrochemical Sensing of Cadmium and Lead Ions in Water by MOF-5/PANI Composites",
volume = "16",
number = "5",
pages = "683",
doi = "10.3390/polym16050683"
}

Milikić, J., Savić, M., Janošević Ležaić, A., Šljukić, B.,& Ćirić-Marjanović, G.. (2024). Electrochemical Sensing of Cadmium and Lead Ions in Water by MOF-5/PANI Composites. in Polymers, 16(5), 683.
https://doi.org/10.3390/polym16050683

Milikić J, Savić M, Janošević Ležaić A, Šljukić B, Ćirić-Marjanović G. Electrochemical Sensing of Cadmium and Lead Ions in Water by MOF-5/PANI Composites. in Polymers. 2024;16(5):683.
doi:10.3390/polym16050683 .

Milikić, Jadranka, Savić, Marjetka, Janošević Ležaić, Aleksandra, Šljukić, Biljana, Ćirić-Marjanović, Gordana, "Electrochemical Sensing of Cadmium and Lead Ions in Water by MOF-5/PANI Composites" in Polymers, 16, no. 5 (2024):683,
https://doi.org/10.3390/polym16050683 . .

TY  - JOUR
AU  - Savić, Marjetka
AU  - Janošević Ležaić, Aleksandra
AU  - Gavrilov, Nemanja
AU  - Pašti, Igor
AU  - Nedić Vasiljević, Bojana
AU  - Krstić, Jugoslav
AU  - Ćirić-Marjanović, Gordana
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10645
AB  - Composites of carbons with metal oxides and metal sulfides have attracted a lot of interestas materials for energy conversion and storage applications. Herein, we report on novel N,O-dopedcarbon/ZnO/ZnS and N,O-doped carbon/ZnO composites (generally named C-(MOF-5/PANI)),synthesized by the carbonization of metal–organic framework MOF-5/polyaniline (PANI) composites.The produced C-(MOF-5/PANI)s are comprehensively characterized in terms of composition,molecular and crystalline structure, morphology, electrical conductivity, surface area, and electrochemicalbehavior. The composition and properties of C-(MOF-5/PANI) composites are dictated bythe composition of MOF-5/PANI precursors and the form of PANI (conducting emeraldine salt (ES)or nonconducting emeraldine base). The ZnS phase is formed only with the PANI-ES form due toS-containing counter-ions. XRPD revealed that ZnO and ZnS existed as pure wurtzite crystallinephases. PANI and MOF-5 acted synergistically to produce C-(MOF-5/PANI)s with high SBET (up to609 m2 g−1), electrical conductivity (up to 0.24 S cm−1), and specific capacitance, Cspec, (up to 238.2 Fg−1 at 10 mV s−1). Values of Cspec commensurated with N content in C-(MOF-5/PANI) composites (1–10 wt.%) and overcame Cspec of carbonized individual components PANI and MOF-5. By acid etchingtreatment of C-(MOF-5/PANI), SBET and Cspec increased to 1148 m2 g−1 and 341 F g−1, respectively.The developed composites represent promising electrode materials for supercapacitors.
T2  - Materials
T1  - Carbonization of MOF-5/Polyaniline Composites to N,O-Doped Carbon/ZnO/ZnS and N,O-Doped Carbon/ZnO Composites with High Specific Capacitance, Specific Surface Area and Electrical Conductivity
VL  - 16
IS  - 3
SP  - 1018
DO  - 10.3390/ma16031018
ER  - 

@article{
author = "Savić, Marjetka and Janošević Ležaić, Aleksandra and Gavrilov, Nemanja and Pašti, Igor and Nedić Vasiljević, Bojana and Krstić, Jugoslav and Ćirić-Marjanović, Gordana",
year = "2023",
abstract = "Composites of carbons with metal oxides and metal sulfides have attracted a lot of interestas materials for energy conversion and storage applications. Herein, we report on novel N,O-dopedcarbon/ZnO/ZnS and N,O-doped carbon/ZnO composites (generally named C-(MOF-5/PANI)),synthesized by the carbonization of metal–organic framework MOF-5/polyaniline (PANI) composites.The produced C-(MOF-5/PANI)s are comprehensively characterized in terms of composition,molecular and crystalline structure, morphology, electrical conductivity, surface area, and electrochemicalbehavior. The composition and properties of C-(MOF-5/PANI) composites are dictated bythe composition of MOF-5/PANI precursors and the form of PANI (conducting emeraldine salt (ES)or nonconducting emeraldine base). The ZnS phase is formed only with the PANI-ES form due toS-containing counter-ions. XRPD revealed that ZnO and ZnS existed as pure wurtzite crystallinephases. PANI and MOF-5 acted synergistically to produce C-(MOF-5/PANI)s with high SBET (up to609 m2 g−1), electrical conductivity (up to 0.24 S cm−1), and specific capacitance, Cspec, (up to 238.2 Fg−1 at 10 mV s−1). Values of Cspec commensurated with N content in C-(MOF-5/PANI) composites (1–10 wt.%) and overcame Cspec of carbonized individual components PANI and MOF-5. By acid etchingtreatment of C-(MOF-5/PANI), SBET and Cspec increased to 1148 m2 g−1 and 341 F g−1, respectively.The developed composites represent promising electrode materials for supercapacitors.",
journal = "Materials",
title = "Carbonization of MOF-5/Polyaniline Composites to N,O-Doped Carbon/ZnO/ZnS and N,O-Doped Carbon/ZnO Composites with High Specific Capacitance, Specific Surface Area and Electrical Conductivity",
volume = "16",
number = "3",
pages = "1018",
doi = "10.3390/ma16031018"
}

Savić, M., Janošević Ležaić, A., Gavrilov, N., Pašti, I., Nedić Vasiljević, B., Krstić, J.,& Ćirić-Marjanović, G.. (2023). Carbonization of MOF-5/Polyaniline Composites to N,O-Doped Carbon/ZnO/ZnS and N,O-Doped Carbon/ZnO Composites with High Specific Capacitance, Specific Surface Area and Electrical Conductivity. in Materials, 16(3), 1018.
https://doi.org/10.3390/ma16031018

Savić M, Janošević Ležaić A, Gavrilov N, Pašti I, Nedić Vasiljević B, Krstić J, Ćirić-Marjanović G. Carbonization of MOF-5/Polyaniline Composites to N,O-Doped Carbon/ZnO/ZnS and N,O-Doped Carbon/ZnO Composites with High Specific Capacitance, Specific Surface Area and Electrical Conductivity. in Materials. 2023;16(3):1018.
doi:10.3390/ma16031018 .

Savić, Marjetka, Janošević Ležaić, Aleksandra, Gavrilov, Nemanja, Pašti, Igor, Nedić Vasiljević, Bojana, Krstić, Jugoslav, Ćirić-Marjanović, Gordana, "Carbonization of MOF-5/Polyaniline Composites to N,O-Doped Carbon/ZnO/ZnS and N,O-Doped Carbon/ZnO Composites with High Specific Capacitance, Specific Surface Area and Electrical Conductivity" in Materials, 16, no. 3 (2023):1018,
https://doi.org/10.3390/ma16031018 . .

TY  - JOUR
AU  - Jevremović, Anka
AU  - Savić, Marjetka
AU  - Janošević Ležaić, Aleksandra
AU  - Krstić, Jugoslav
AU  - Gavrilov, Nemanja
AU  - Bajuk-Bogdanović, Danica
AU  - Milojević-Rakić, Maja
AU  - Ćirić-Marjanović, Gordana
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12211
AB  - The environmental application of the carbonized composites of the Zn-containing metal-organic framework MOF-5 and polyaniline (PANI) in its emeraldine salt and base forms (C-(MOF-5/PANI)) was investigated for the first time. Textural properties and particle size distributions revealed that composites are dominantly mesoporous and nanoscale in nature, while Raman spectroscopy revealed the ZnO phase beneath the carbon matrix. Adsorption of pesticide, dye, and metal cation on C-(MOF-5/PANI) composites in aqueous solutions was evaluated and compared with the behavior of the precursor components, carbonized MOF-5 (cMOF), and carbonized PANIs. A lower MOF-5 content in the precursor, a higher specific surface area, and the pore volume of the composites led to improved adsorption performance for acetamiprid (124 mg/g) and Methylene Blue (135 mg/g). The presence of O/N functional groups in composites is essential for the adsorption of nitrogen-rich pollutants through hydrogen bonding with an estimated monolayer capacity twice as high as that of cMOF. The proton exchange accompanying Cd2+ retention was associated with the Zn/Cd ion exchange, and the highest capacity (9.8 mg/g) was observed for the composite synthesized from the precursor with a high MOF-5 content. The multifunctionality of composites was evidenced in mixtures of pollutants where noticeably better performance for Cd2+ removal was found for the composite compared to cMOF. Competitive binding between three pollutants favored the adsorption of pesticide and dye, thereby hindering to some extent the ion exchange necessary for the removal of metal cations. The results emphasize the importance of the PANI form and MOF-5/PANI weight ratio in precursors for the development of surface, porosity, and active sites in C-(MOF-5/PANI) composites, thus guiding their environmental efficiency. The study also demonstrated that C-(MOF-5/PANI) composites retained studied pollutants much better than carbonized precursor PANIs and showed comparable or better adsorption ability than cMOF.
T2  - Polymers
T1  - Environmental Potential of Carbonized MOF-5/PANI Composites for Pesticide, Dye, and Metal Cations—Can They Actually Retain Them All?
VL  - 15
IS  - 22
SP  - 4349
DO  - 10.3390/polym15224349
ER  - 

@article{
author = "Jevremović, Anka and Savić, Marjetka and Janošević Ležaić, Aleksandra and Krstić, Jugoslav and Gavrilov, Nemanja and Bajuk-Bogdanović, Danica and Milojević-Rakić, Maja and Ćirić-Marjanović, Gordana",
year = "2023",
abstract = "The environmental application of the carbonized composites of the Zn-containing metal-organic framework MOF-5 and polyaniline (PANI) in its emeraldine salt and base forms (C-(MOF-5/PANI)) was investigated for the first time. Textural properties and particle size distributions revealed that composites are dominantly mesoporous and nanoscale in nature, while Raman spectroscopy revealed the ZnO phase beneath the carbon matrix. Adsorption of pesticide, dye, and metal cation on C-(MOF-5/PANI) composites in aqueous solutions was evaluated and compared with the behavior of the precursor components, carbonized MOF-5 (cMOF), and carbonized PANIs. A lower MOF-5 content in the precursor, a higher specific surface area, and the pore volume of the composites led to improved adsorption performance for acetamiprid (124 mg/g) and Methylene Blue (135 mg/g). The presence of O/N functional groups in composites is essential for the adsorption of nitrogen-rich pollutants through hydrogen bonding with an estimated monolayer capacity twice as high as that of cMOF. The proton exchange accompanying Cd2+ retention was associated with the Zn/Cd ion exchange, and the highest capacity (9.8 mg/g) was observed for the composite synthesized from the precursor with a high MOF-5 content. The multifunctionality of composites was evidenced in mixtures of pollutants where noticeably better performance for Cd2+ removal was found for the composite compared to cMOF. Competitive binding between three pollutants favored the adsorption of pesticide and dye, thereby hindering to some extent the ion exchange necessary for the removal of metal cations. The results emphasize the importance of the PANI form and MOF-5/PANI weight ratio in precursors for the development of surface, porosity, and active sites in C-(MOF-5/PANI) composites, thus guiding their environmental efficiency. The study also demonstrated that C-(MOF-5/PANI) composites retained studied pollutants much better than carbonized precursor PANIs and showed comparable or better adsorption ability than cMOF.",
journal = "Polymers",
title = "Environmental Potential of Carbonized MOF-5/PANI Composites for Pesticide, Dye, and Metal Cations—Can They Actually Retain Them All?",
volume = "15",
number = "22",
pages = "4349",
doi = "10.3390/polym15224349"
}

Jevremović, A., Savić, M., Janošević Ležaić, A., Krstić, J., Gavrilov, N., Bajuk-Bogdanović, D., Milojević-Rakić, M.,& Ćirić-Marjanović, G.. (2023). Environmental Potential of Carbonized MOF-5/PANI Composites for Pesticide, Dye, and Metal Cations—Can They Actually Retain Them All?. in Polymers, 15(22), 4349.
https://doi.org/10.3390/polym15224349

Jevremović A, Savić M, Janošević Ležaić A, Krstić J, Gavrilov N, Bajuk-Bogdanović D, Milojević-Rakić M, Ćirić-Marjanović G. Environmental Potential of Carbonized MOF-5/PANI Composites for Pesticide, Dye, and Metal Cations—Can They Actually Retain Them All?. in Polymers. 2023;15(22):4349.
doi:10.3390/polym15224349 .

Jevremović, Anka, Savić, Marjetka, Janošević Ležaić, Aleksandra, Krstić, Jugoslav, Gavrilov, Nemanja, Bajuk-Bogdanović, Danica, Milojević-Rakić, Maja, Ćirić-Marjanović, Gordana, "Environmental Potential of Carbonized MOF-5/PANI Composites for Pesticide, Dye, and Metal Cations—Can They Actually Retain Them All?" in Polymers, 15, no. 22 (2023):4349,
https://doi.org/10.3390/polym15224349 . .

TY  - CONF
AU  - Milošević, Milica
AU  - Radoičić, Marija
AU  - Ćirić-Marjanović, Gordana
AU  - Spasojević, Jelena
AU  - Vukoje, Ivana
AU  - Radosavljević, Aleksandra
AU  - Šaponjić, Zoran
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11596
AB  - A  calling  need  for  environmental  protection  is  not  abating  and  high  demands  have  been  set for  the  current  topic  that  deals  with  applied  technologies  for  removal  of  organic  pollutants.  The AOPs  appear  to  be  one  of  the  most  effective  processes,  where  heterogeneous  photocatalysis  using efficient  UV  light-harvesting  TiO2nanocrystals  has  unquestionably  become  one  of  the  most  com-monly used process for dyes degradation treatment. Limited photocatalytic efficiency of TiO2under sunlight  illumination  was  overcame  bycoupling  with  polyaniline  (PANI)  as  notably  investigated conductive polymer. Reducing the level of e-/h+recombination in TiO2and photosensitized proper-ties of PANI was the basis for creation of new functional PANI/TiO2nanocomposites. Such hybrid functional  nanomaterials  consisting  of  conductive  polymers  and  dissimilar  nanocrystals  manifest the  unique  properties,  usually  not  characteristic  of  independent  componentsbut  their  synergistic effect. Series of developed functional nanocomposites based on PANI and colloidal TiO2nanoparti-cles  (NPs)  (TP),  carbonized  PANI  and  colloidal  TiO2NPs  (TPC)  and  carbonized  PANI  and  TiO2nanotubes (NTs) (TTPC) by the efficient and harmless synthesis pathways are presented. Differently shaped  TiO2nanocrystals  are  carefully  prepared  via  sol-gel  and  hydrothermal  synthesis  and  the influence  of  their  size  and  shape  on  the  photocatalytic  efficiency  of  hybrid  nanocomposites  was evaluated. The non-carbonized PANI/TiO2nanocomposites were synthesized by the chemical oxida-tive  polymerization  of  aniline  with  ammonium  peroxydisulfate,  in  the  presence  of  selected  TiO2nanocrystals,  while  the  carbonized  class  was  obtained  in the subsequent  carbonization  process, following  the  polymerization,  in  an  inert  atmosphere  at  650  °C.  The  morphology  and  structureof these nano-based photocatalysts was determined by TEM analysis and Raman spectroscopy. Func-tionality  of  nanocomposites  was  evaluated  following  the  photocatalytic  degradation  processes  of model compoundsMethylene blue and Rhodamine B and enhanced degradation efficiencies in the used dyes were observed
AB  - Aktuelna potreba za zaštitom životne sredine ne jenjava i s tim u vezi postavljeni su visoki zahtevi vezani za tematiku primenjenih tehnologija za uklanjanje organskih zagađujućih supstanci. Ispostavlja se da napredni procesi oksidacije (engl. Advanced oxidation processes, AOPs) predstavljaju jedan od najefikasnijih procesa, među kojima heterogena fotokataliza, bazirana na upotrebi nanokristala TiO2 aktiviranih UV zračenjem, nesumnjivo predstavlja jedan od najčešće korišćenih tretmana za degradaciju organskih boja. Problem ograničene fotokatalitičke efikasnosti TiO2 pod dejstvom sunčevog zračenja može se prevazići formiranjem kompozita sa polianilinom (PANI), čija se uloga bazira na smanjenju rekombinativnih procesa e-/h+, kao i sposobnosti PANI-a da optički aktivira nanokristale TiO2, što je bila osnova za formiranje novih funkcionalnih PANI/TiO2 nanokompozita. Takvi hibridni nanomaterijali bazirani na provodnom polimeru i nanokristalima različitih oblika pokazuju jedinstvena svojstva koja najčešće nisu karakteristika pojedinačnih komponenti, već njihovog sinergističkog dejstva. Efikasnim i ekološki prihvatljivim sintezama razvijena je serija funkcionalnih nanokompozita na bazi PANI-a i koloidnih TiO2 nanočestica (NPs) (TP), karbonizovanog PANI-a i koloidnih TiO2 NPs (TPC) i karbonizovanog PANI-a i TiO2 nanotuba (NTs) (TTPC). Nanokristali TiO2 različitog oblika pažljivo su sintetisani sol-gel i hidrotermalnom metodom i procenjen je uticaj njihove veličine i oblika na fotokatalitičku efikasnost hibridnih nanokompozita. Nekarbonizovani PANI/TiO2 nanokompoziti sintetisani su hemijskom oksidativnom polimerizacijom anilina sa amonijum peroksidisulfatom, u prisustvu odabranih nanokristala TiO2, dok je karbonizovana serija uzoraka dobijena naknadnim procesom karbonizacije, prateći polimerizaciju, u inertnoj atmosferi na 650 °C. Morfologija i struktura sintetisanih fotokatalitički aktivnih sistema ispitana je TEM analizom i Ramanskom spektroskopijom. Funkcionalnost nanokompozita je procenjena prateći procese fotokatalitičke degradacije model-jedinjenja Methylene blue i Rhodamine B i primećena je povećana efikasnost degradacije testiranih organskih boja
PB  - Beograd : Savez mašinskih i elektrotehničkih inženjera i tehničara Srbije (SMEITS) : Društvo za procesnu tehniku
C3  - 36. Međunarodni kongres o procesnoj industriji - PROCESING ′23 : zbornik radova
T1  - Hybrid functional Pani/TiO2 nanocomposites for dyes degradation treatment
T1  - Hibridni funkcionalni Pani/TiO2 nanokompoziti za tretman degradacije organskih boja
SP  - 83
EP  - 89
DO  - 10.24094/ptk.023.083
ER  - 

@conference{
author = "Milošević, Milica and Radoičić, Marija and Ćirić-Marjanović, Gordana and Spasojević, Jelena and Vukoje, Ivana and Radosavljević, Aleksandra and Šaponjić, Zoran",
year = "2023",
abstract = "A  calling  need  for  environmental  protection  is  not  abating  and  high  demands  have  been  set for  the  current  topic  that  deals  with  applied  technologies  for  removal  of  organic  pollutants.  The AOPs  appear  to  be  one  of  the  most  effective  processes,  where  heterogeneous  photocatalysis  using efficient  UV  light-harvesting  TiO2nanocrystals  has  unquestionably  become  one  of  the  most  com-monly used process for dyes degradation treatment. Limited photocatalytic efficiency of TiO2under sunlight  illumination  was  overcame  bycoupling  with  polyaniline  (PANI)  as  notably  investigated conductive polymer. Reducing the level of e-/h+recombination in TiO2and photosensitized proper-ties of PANI was the basis for creation of new functional PANI/TiO2nanocomposites. Such hybrid functional  nanomaterials  consisting  of  conductive  polymers  and  dissimilar  nanocrystals  manifest the  unique  properties,  usually  not  characteristic  of  independent  componentsbut  their  synergistic effect. Series of developed functional nanocomposites based on PANI and colloidal TiO2nanoparti-cles  (NPs)  (TP),  carbonized  PANI  and  colloidal  TiO2NPs  (TPC)  and  carbonized  PANI  and  TiO2nanotubes (NTs) (TTPC) by the efficient and harmless synthesis pathways are presented. Differently shaped  TiO2nanocrystals  are  carefully  prepared  via  sol-gel  and  hydrothermal  synthesis  and  the influence  of  their  size  and  shape  on  the  photocatalytic  efficiency  of  hybrid  nanocomposites  was evaluated. The non-carbonized PANI/TiO2nanocomposites were synthesized by the chemical oxida-tive  polymerization  of  aniline  with  ammonium  peroxydisulfate,  in  the  presence  of  selected  TiO2nanocrystals,  while  the  carbonized  class  was  obtained  in the subsequent  carbonization  process, following  the  polymerization,  in  an  inert  atmosphere  at  650  °C.  The  morphology  and  structureof these nano-based photocatalysts was determined by TEM analysis and Raman spectroscopy. Func-tionality  of  nanocomposites  was  evaluated  following  the  photocatalytic  degradation  processes  of model compoundsMethylene blue and Rhodamine B and enhanced degradation efficiencies in the used dyes were observed, Aktuelna potreba za zaštitom životne sredine ne jenjava i s tim u vezi postavljeni su visoki zahtevi vezani za tematiku primenjenih tehnologija za uklanjanje organskih zagađujućih supstanci. Ispostavlja se da napredni procesi oksidacije (engl. Advanced oxidation processes, AOPs) predstavljaju jedan od najefikasnijih procesa, među kojima heterogena fotokataliza, bazirana na upotrebi nanokristala TiO2 aktiviranih UV zračenjem, nesumnjivo predstavlja jedan od najčešće korišćenih tretmana za degradaciju organskih boja. Problem ograničene fotokatalitičke efikasnosti TiO2 pod dejstvom sunčevog zračenja može se prevazići formiranjem kompozita sa polianilinom (PANI), čija se uloga bazira na smanjenju rekombinativnih procesa e-/h+, kao i sposobnosti PANI-a da optički aktivira nanokristale TiO2, što je bila osnova za formiranje novih funkcionalnih PANI/TiO2 nanokompozita. Takvi hibridni nanomaterijali bazirani na provodnom polimeru i nanokristalima različitih oblika pokazuju jedinstvena svojstva koja najčešće nisu karakteristika pojedinačnih komponenti, već njihovog sinergističkog dejstva. Efikasnim i ekološki prihvatljivim sintezama razvijena je serija funkcionalnih nanokompozita na bazi PANI-a i koloidnih TiO2 nanočestica (NPs) (TP), karbonizovanog PANI-a i koloidnih TiO2 NPs (TPC) i karbonizovanog PANI-a i TiO2 nanotuba (NTs) (TTPC). Nanokristali TiO2 različitog oblika pažljivo su sintetisani sol-gel i hidrotermalnom metodom i procenjen je uticaj njihove veličine i oblika na fotokatalitičku efikasnost hibridnih nanokompozita. Nekarbonizovani PANI/TiO2 nanokompoziti sintetisani su hemijskom oksidativnom polimerizacijom anilina sa amonijum peroksidisulfatom, u prisustvu odabranih nanokristala TiO2, dok je karbonizovana serija uzoraka dobijena naknadnim procesom karbonizacije, prateći polimerizaciju, u inertnoj atmosferi na 650 °C. Morfologija i struktura sintetisanih fotokatalitički aktivnih sistema ispitana je TEM analizom i Ramanskom spektroskopijom. Funkcionalnost nanokompozita je procenjena prateći procese fotokatalitičke degradacije model-jedinjenja Methylene blue i Rhodamine B i primećena je povećana efikasnost degradacije testiranih organskih boja",
publisher = "Beograd : Savez mašinskih i elektrotehničkih inženjera i tehničara Srbije (SMEITS) : Društvo za procesnu tehniku",
journal = "36. Međunarodni kongres o procesnoj industriji - PROCESING ′23 : zbornik radova",
title = "Hybrid functional Pani/TiO2 nanocomposites for dyes degradation treatment, Hibridni funkcionalni Pani/TiO2 nanokompoziti za tretman degradacije organskih boja",
pages = "83-89",
doi = "10.24094/ptk.023.083"
}

Milošević, M., Radoičić, M., Ćirić-Marjanović, G., Spasojević, J., Vukoje, I., Radosavljević, A.,& Šaponjić, Z.. (2023). Hybrid functional Pani/TiO2 nanocomposites for dyes degradation treatment. in 36. Međunarodni kongres o procesnoj industriji - PROCESING ′23 : zbornik radova
Beograd : Savez mašinskih i elektrotehničkih inženjera i tehničara Srbije (SMEITS) : Društvo za procesnu tehniku., 83-89.
https://doi.org/10.24094/ptk.023.083

Milošević M, Radoičić M, Ćirić-Marjanović G, Spasojević J, Vukoje I, Radosavljević A, Šaponjić Z. Hybrid functional Pani/TiO2 nanocomposites for dyes degradation treatment. in 36. Međunarodni kongres o procesnoj industriji - PROCESING ′23 : zbornik radova. 2023;:83-89.
doi:10.24094/ptk.023.083 .

Milošević, Milica, Radoičić, Marija, Ćirić-Marjanović, Gordana, Spasojević, Jelena, Vukoje, Ivana, Radosavljević, Aleksandra, Šaponjić, Zoran, "Hybrid functional Pani/TiO2 nanocomposites for dyes degradation treatment" in 36. Međunarodni kongres o procesnoj industriji - PROCESING ′23 : zbornik radova (2023):83-89,
https://doi.org/10.24094/ptk.023.083 . .

TY  - CONF
AU  - Milošević, Milica
AU  - Radoičić, Marija
AU  - Ćirić-Marjanović, Gordana
AU  - Spasojević, Jelena
AU  - Vukoje, Ivana
AU  - Radosavljević, Aleksandra
AU  - Šaponjić, Zoran
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12197
AB  - Differently-shaped TiO2 photo-nanocatalysts play a principal role in the remediation of environmental and pollution challenges considering their proven potential for treating organic contaminants in wastewaters [1]. However, increasing the photoactivity of TiO2 i.e. its optical response from UV into visible region is a constant challenge of many ongoing researchers [2]. An proceed towards this demand may be the creation of hybrid functional nanocomposites by coating the TiO2 nanocrystals (NCs) with electronically coupled conductive polymers (e.g., polyaniline (PANI), polypyrrole, etc.) [3]. By the carbonization process of mentioned conductive polymers at high temperatures, obtained final material possess carbon-like structure which impart additional properties [4]. Thus, the evolution of carbonized PANI (CPANI)- coated TiO2 NCs opens up the possibility for tailoring the photocatalyst with distinctive properties. This study implies development of new nanocomposites based on CPANI and colloidal TiO2 nanoparticles (NPs) (TPC) and CPANI and TiO2 nanotubes (NTs) (TTPC). Sol- gel and hydrothermal synthesis paths were used to obtain TiO2 NCs. The influence of their size and shape on the photocatalytic activity of formed carbonized nanocomposites was estimated. TPC and TTPC nanocomposites were synthesized according to the steps: 1) the non-carbonized PANI/TiO2 class was firstly prepared by the chemical oxidative polymerization of aniline with ammonium peroxydisulfate in the presence of TiO2 NPs or NTs and 2) the subsequent carbonization process was applied (650 °C). Developed hybrid nanocomposites were morphologically and structurally characterized by TEM measurements and Raman spectroscopy, while their functionality was estimated through the photocatalytic degradation processes of Methylene blue and Rhodamine B. All TPC and TTPC nanocomposites showed excellent photocatalytic properties, however, shape-depending of used TiO2 NCs.
PB  - Szeged : University of Szeged
C3  - 29th International Symposium on Analytical and Environmental Problems : Proceedings
T1  - Shape-dependent carbonized PANI-coated TiO2 nanocrystals and its use in the decomposition of organic pollutants
SP  - 225
EP  - 225
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12197
ER  - 

@conference{
author = "Milošević, Milica and Radoičić, Marija and Ćirić-Marjanović, Gordana and Spasojević, Jelena and Vukoje, Ivana and Radosavljević, Aleksandra and Šaponjić, Zoran",
year = "2023",
abstract = "Differently-shaped TiO2 photo-nanocatalysts play a principal role in the remediation of environmental and pollution challenges considering their proven potential for treating organic contaminants in wastewaters [1]. However, increasing the photoactivity of TiO2 i.e. its optical response from UV into visible region is a constant challenge of many ongoing researchers [2]. An proceed towards this demand may be the creation of hybrid functional nanocomposites by coating the TiO2 nanocrystals (NCs) with electronically coupled conductive polymers (e.g., polyaniline (PANI), polypyrrole, etc.) [3]. By the carbonization process of mentioned conductive polymers at high temperatures, obtained final material possess carbon-like structure which impart additional properties [4]. Thus, the evolution of carbonized PANI (CPANI)- coated TiO2 NCs opens up the possibility for tailoring the photocatalyst with distinctive properties. This study implies development of new nanocomposites based on CPANI and colloidal TiO2 nanoparticles (NPs) (TPC) and CPANI and TiO2 nanotubes (NTs) (TTPC). Sol- gel and hydrothermal synthesis paths were used to obtain TiO2 NCs. The influence of their size and shape on the photocatalytic activity of formed carbonized nanocomposites was estimated. TPC and TTPC nanocomposites were synthesized according to the steps: 1) the non-carbonized PANI/TiO2 class was firstly prepared by the chemical oxidative polymerization of aniline with ammonium peroxydisulfate in the presence of TiO2 NPs or NTs and 2) the subsequent carbonization process was applied (650 °C). Developed hybrid nanocomposites were morphologically and structurally characterized by TEM measurements and Raman spectroscopy, while their functionality was estimated through the photocatalytic degradation processes of Methylene blue and Rhodamine B. All TPC and TTPC nanocomposites showed excellent photocatalytic properties, however, shape-depending of used TiO2 NCs.",
publisher = "Szeged : University of Szeged",
journal = "29th International Symposium on Analytical and Environmental Problems : Proceedings",
title = "Shape-dependent carbonized PANI-coated TiO2 nanocrystals and its use in the decomposition of organic pollutants",
pages = "225-225",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12197"
}

Milošević, M., Radoičić, M., Ćirić-Marjanović, G., Spasojević, J., Vukoje, I., Radosavljević, A.,& Šaponjić, Z.. (2023). Shape-dependent carbonized PANI-coated TiO2 nanocrystals and its use in the decomposition of organic pollutants. in 29th International Symposium on Analytical and Environmental Problems : Proceedings
Szeged : University of Szeged., 225-225.
https://hdl.handle.net/21.15107/rcub_vinar_12197

Milošević M, Radoičić M, Ćirić-Marjanović G, Spasojević J, Vukoje I, Radosavljević A, Šaponjić Z. Shape-dependent carbonized PANI-coated TiO2 nanocrystals and its use in the decomposition of organic pollutants. in 29th International Symposium on Analytical and Environmental Problems : Proceedings. 2023;:225-225.
https://hdl.handle.net/21.15107/rcub_vinar_12197 .

Milošević, Milica, Radoičić, Marija, Ćirić-Marjanović, Gordana, Spasojević, Jelena, Vukoje, Ivana, Radosavljević, Aleksandra, Šaponjić, Zoran, "Shape-dependent carbonized PANI-coated TiO2 nanocrystals and its use in the decomposition of organic pollutants" in 29th International Symposium on Analytical and Environmental Problems : Proceedings (2023):225-225,
https://hdl.handle.net/21.15107/rcub_vinar_12197 .

TY  - CONF
AU  - Gajić, Brankica
AU  - Ćirić-Marjanović, Gordana
AU  - Šaponjić, Zoran
AU  - Radoičić, Marija
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12291
AB  - Polyaniline (PANI) is a promising conducting polymer for surface modification and sensitizing of TiO2 to achieve extended photoresponse to visible light and increased photocatalytic efficiency [1]. Reducing the level of e-/h+ recombination in TiO2 and photosensitized properties of PANI was the basis for creation of new functional PANI/TiO2 nanocomposites. Carbonization process additionally contribute improving photoactivity of TiO2 due to formation of new structures. Namely, after carbonization process of PANI component, graphene-like structures are formed [2]. On the other hand, temperature treatment during carbonization caused appearance of rutile beside anatase crystal structure of TiO2, so combination of mentioned crystal phases induced better photocatalytic activity. In this study, we report the synthesis of a carbonized PANI/TiO2composite with different initial weight ratios of PANI, which was subsequently employed for photocatalytic degradation of methylene blue (MB), Rhodamine B (RB) and Acid Orange 7 (AO7) under white-light irradiation. Molecular and crystal structure, morphology, and photocatalytic response of the synthesized nanocomposite were characterized by Raman spectroscopy, XRD measurements, field-emission scanning electron microscopy, and UV visible spectroscopy, respectively. Obtained results showed significant enhance of photocatalytic properties of synthesized nanocomposites in comparison to neat titania nanotubes.
PB  - Belgrade : Serbian Chemical Society and Serbian Young Chemists' Club
C3  - 9th Conference of Young Chemists of Serbia : Book of abstracts
T1  - Photocatalytic properties of carbonized nanocomposites based on polyniline and titania nanotubes
SP  - 81
EP  - 81
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12291
ER  - 

@conference{
author = "Gajić, Brankica and Ćirić-Marjanović, Gordana and Šaponjić, Zoran and Radoičić, Marija",
year = "2023",
abstract = "Polyaniline (PANI) is a promising conducting polymer for surface modification and sensitizing of TiO2 to achieve extended photoresponse to visible light and increased photocatalytic efficiency [1]. Reducing the level of e-/h+ recombination in TiO2 and photosensitized properties of PANI was the basis for creation of new functional PANI/TiO2 nanocomposites. Carbonization process additionally contribute improving photoactivity of TiO2 due to formation of new structures. Namely, after carbonization process of PANI component, graphene-like structures are formed [2]. On the other hand, temperature treatment during carbonization caused appearance of rutile beside anatase crystal structure of TiO2, so combination of mentioned crystal phases induced better photocatalytic activity. In this study, we report the synthesis of a carbonized PANI/TiO2composite with different initial weight ratios of PANI, which was subsequently employed for photocatalytic degradation of methylene blue (MB), Rhodamine B (RB) and Acid Orange 7 (AO7) under white-light irradiation. Molecular and crystal structure, morphology, and photocatalytic response of the synthesized nanocomposite were characterized by Raman spectroscopy, XRD measurements, field-emission scanning electron microscopy, and UV visible spectroscopy, respectively. Obtained results showed significant enhance of photocatalytic properties of synthesized nanocomposites in comparison to neat titania nanotubes.",
publisher = "Belgrade : Serbian Chemical Society and Serbian Young Chemists' Club",
journal = "9th Conference of Young Chemists of Serbia : Book of abstracts",
title = "Photocatalytic properties of carbonized nanocomposites based on polyniline and titania nanotubes",
pages = "81-81",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12291"
}

Gajić, B., Ćirić-Marjanović, G., Šaponjić, Z.,& Radoičić, M.. (2023). Photocatalytic properties of carbonized nanocomposites based on polyniline and titania nanotubes. in 9th Conference of Young Chemists of Serbia : Book of abstracts
Belgrade : Serbian Chemical Society and Serbian Young Chemists' Club., 81-81.
https://hdl.handle.net/21.15107/rcub_vinar_12291

Gajić B, Ćirić-Marjanović G, Šaponjić Z, Radoičić M. Photocatalytic properties of carbonized nanocomposites based on polyniline and titania nanotubes. in 9th Conference of Young Chemists of Serbia : Book of abstracts. 2023;:81-81.
https://hdl.handle.net/21.15107/rcub_vinar_12291 .

Gajić, Brankica, Ćirić-Marjanović, Gordana, Šaponjić, Zoran, Radoičić, Marija, "Photocatalytic properties of carbonized nanocomposites based on polyniline and titania nanotubes" in 9th Conference of Young Chemists of Serbia : Book of abstracts (2023):81-81,
https://hdl.handle.net/21.15107/rcub_vinar_12291 .

TY  - JOUR
AU  - Radoičić, Marija
AU  - Ćirić-Marjanović, Gordana
AU  - Miličević, Dejan
AU  - Suljovrujić, Edin
AU  - Milošević, Milica
AU  - Kuljanin Jakovljević, Jadranka
AU  - Šaponjić, Zoran
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11893
AB  - Structural, conductive and dielectric properties of hybrid Polypyrrole (PPy)-TiO2 nanocomposite-coated polyamide fabric (PA-PPy/TiO2) synthesized by in-situ oxidative polymerization of pyrrole on the surface of polyamide in the presence of colloidal TiO2 NPs (d ~ 4.5 nm) have been studied. Raman spectra confirmed salt form of PPy in both neat PPy and PPy/TiO2-coated PA fabric and indicated its complete coverage. SEM/EDX analysis confirmed presence of TiO2 NPs and changes in granular structure of PPy deposited on the surface of PA fiber depending on the amount of TiO2 NPs. The PA-PPy/TiO2 nanocomposite sample with lowest content of TiO2 NPs (6.79 At.% Ti) showed highest conductivity (~10−6 S/cm) and dissipation factor (tan δ) in the entire frequency range. The lowest amount of TiO2 NPs in the PA-PPy/TiO2 nanocomposite induced two to four orders of magnitude higher tan δ value, compared to neat PPy covered PA fabric, depending on the frequency range. Frequency dependence of real (ϵ′) and imaginary part (ϵ″) of the complex permittivity for neat PA and PPy/TiO2-coated PA fabrics follow the trend of changes in dissipation factor for the same TiO2 NPs concentrations. The presence of TiO2 NPs could be exploited for tuning the conductive and dielectric properties of a conductive layer.
T2  - Composite Interfaces
T1  - Fine-tuning of conductive and dielectric properties of polypyrrole/TiO                    2                    nanocomposite-coated polyamide fabric
VL  - 28
IS  - 8
SP  - 795
EP  - 808
DO  - 10.1080/09276440.2020.1805219
ER  - 

@article{
author = "Radoičić, Marija and Ćirić-Marjanović, Gordana and Miličević, Dejan and Suljovrujić, Edin and Milošević, Milica and Kuljanin Jakovljević, Jadranka and Šaponjić, Zoran",
year = "2021",
abstract = "Structural, conductive and dielectric properties of hybrid Polypyrrole (PPy)-TiO2 nanocomposite-coated polyamide fabric (PA-PPy/TiO2) synthesized by in-situ oxidative polymerization of pyrrole on the surface of polyamide in the presence of colloidal TiO2 NPs (d ~ 4.5 nm) have been studied. Raman spectra confirmed salt form of PPy in both neat PPy and PPy/TiO2-coated PA fabric and indicated its complete coverage. SEM/EDX analysis confirmed presence of TiO2 NPs and changes in granular structure of PPy deposited on the surface of PA fiber depending on the amount of TiO2 NPs. The PA-PPy/TiO2 nanocomposite sample with lowest content of TiO2 NPs (6.79 At.% Ti) showed highest conductivity (~10−6 S/cm) and dissipation factor (tan δ) in the entire frequency range. The lowest amount of TiO2 NPs in the PA-PPy/TiO2 nanocomposite induced two to four orders of magnitude higher tan δ value, compared to neat PPy covered PA fabric, depending on the frequency range. Frequency dependence of real (ϵ′) and imaginary part (ϵ″) of the complex permittivity for neat PA and PPy/TiO2-coated PA fabrics follow the trend of changes in dissipation factor for the same TiO2 NPs concentrations. The presence of TiO2 NPs could be exploited for tuning the conductive and dielectric properties of a conductive layer.",
journal = "Composite Interfaces",
title = "Fine-tuning of conductive and dielectric properties of polypyrrole/TiO                    2                    nanocomposite-coated polyamide fabric",
volume = "28",
number = "8",
pages = "795-808",
doi = "10.1080/09276440.2020.1805219"
}

Radoičić, M., Ćirić-Marjanović, G., Miličević, D., Suljovrujić, E., Milošević, M., Kuljanin Jakovljević, J.,& Šaponjić, Z.. (2021). Fine-tuning of conductive and dielectric properties of polypyrrole/TiO                    2                    nanocomposite-coated polyamide fabric. in Composite Interfaces, 28(8), 795-808.
https://doi.org/10.1080/09276440.2020.1805219

Radoičić M, Ćirić-Marjanović G, Miličević D, Suljovrujić E, Milošević M, Kuljanin Jakovljević J, Šaponjić Z. Fine-tuning of conductive and dielectric properties of polypyrrole/TiO                    2                    nanocomposite-coated polyamide fabric. in Composite Interfaces. 2021;28(8):795-808.
doi:10.1080/09276440.2020.1805219 .

Radoičić, Marija, Ćirić-Marjanović, Gordana, Miličević, Dejan, Suljovrujić, Edin, Milošević, Milica, Kuljanin Jakovljević, Jadranka, Šaponjić, Zoran, "Fine-tuning of conductive and dielectric properties of polypyrrole/TiO                    2                    nanocomposite-coated polyamide fabric" in Composite Interfaces, 28, no. 8 (2021):795-808,
https://doi.org/10.1080/09276440.2020.1805219 . .

TY  - JOUR
AU  - Savić-Biserčić, Marjetka
AU  - Marjanović, Budimir
AU  - Zasonska, Beata A.
AU  - Stojadinović, Stevan
AU  - Ćirić-Marjanović, Gordana N.
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8847
AB  - Composites of metal organic framework MOF-5 and conjugated polymer polyaniline (PANI) were synthesized for the first time. Two procedures, which avoid humidity during the synthesis in order to preserve the structure of MOF-5, were applied. In the first one, dissolved part of nonconducting emeraldine base form of PANI (PANI-EB) in N,N΄-dimethylformamide was mixed with MOF-5 in different mass ratios. In the second one, the composites were prepared mechano-chemically, by using powdered conducting emeraldine salt form of PANI (PANI-ES) and solid MOF-5, mixed in chloroform in different mass ratios. The composites were characterized by various techniques: scanning electron microscopy (SEM), FTIR spectroscopy, nitrogen sorption and electrical conductivity measurements, XRD, and flame atomic absorption spectroscopy (FAAS). The procedure which used PANI-EB led to microporous PANI/MOF-5 composites with very high BET specific surface area, SBET (the highest value SBET of c.a. 2700 m2 g−1, even higher than SBET of starting pure MOF-5, showed the composite which contains 89 wt.% of MOF-5) and low conductivity (∼10-7 S cm−1). The second procedure which used PANI-ES gave microporous PANI/MOF-5 composites which showed moderate conductivities (the highest conductivity of 1.0 ⋅ 10−3 S cm-1 exhibited the composite which contains 25 wt.% of MOF-5) and also high SBET values, but lower than those measured for the composites with PANI-EB (the highest SBET of c.a. 850 m2 g-1 showed the composite of PANI doped with HCl which contains c.a. 77 wt.% of MOF-5). XRD measurements confirmed that predominately cubic crystalline structure of MOF-5 was present in almost all composites. © 2020 Elsevier B.V.
T2  - Synthetic Metals
T1  - Novel microporous composites of MOF-5 and polyaniline with high specific surface area
VL  - 262
SP  - 116348
DO  - 10.1016/j.synthmet.2020.116348
ER  - 

@article{
author = "Savić-Biserčić, Marjetka and Marjanović, Budimir and Zasonska, Beata A. and Stojadinović, Stevan and Ćirić-Marjanović, Gordana N.",
year = "2020",
abstract = "Composites of metal organic framework MOF-5 and conjugated polymer polyaniline (PANI) were synthesized for the first time. Two procedures, which avoid humidity during the synthesis in order to preserve the structure of MOF-5, were applied. In the first one, dissolved part of nonconducting emeraldine base form of PANI (PANI-EB) in N,N΄-dimethylformamide was mixed with MOF-5 in different mass ratios. In the second one, the composites were prepared mechano-chemically, by using powdered conducting emeraldine salt form of PANI (PANI-ES) and solid MOF-5, mixed in chloroform in different mass ratios. The composites were characterized by various techniques: scanning electron microscopy (SEM), FTIR spectroscopy, nitrogen sorption and electrical conductivity measurements, XRD, and flame atomic absorption spectroscopy (FAAS). The procedure which used PANI-EB led to microporous PANI/MOF-5 composites with very high BET specific surface area, SBET (the highest value SBET of c.a. 2700 m2 g−1, even higher than SBET of starting pure MOF-5, showed the composite which contains 89 wt.% of MOF-5) and low conductivity (∼10-7 S cm−1). The second procedure which used PANI-ES gave microporous PANI/MOF-5 composites which showed moderate conductivities (the highest conductivity of 1.0 ⋅ 10−3 S cm-1 exhibited the composite which contains 25 wt.% of MOF-5) and also high SBET values, but lower than those measured for the composites with PANI-EB (the highest SBET of c.a. 850 m2 g-1 showed the composite of PANI doped with HCl which contains c.a. 77 wt.% of MOF-5). XRD measurements confirmed that predominately cubic crystalline structure of MOF-5 was present in almost all composites. © 2020 Elsevier B.V.",
journal = "Synthetic Metals",
title = "Novel microporous composites of MOF-5 and polyaniline with high specific surface area",
volume = "262",
pages = "116348",
doi = "10.1016/j.synthmet.2020.116348"
}

Savić-Biserčić, M., Marjanović, B., Zasonska, B. A., Stojadinović, S.,& Ćirić-Marjanović, G. N.. (2020). Novel microporous composites of MOF-5 and polyaniline with high specific surface area. in Synthetic Metals, 262, 116348.
https://doi.org/10.1016/j.synthmet.2020.116348

Savić-Biserčić M, Marjanović B, Zasonska BA, Stojadinović S, Ćirić-Marjanović GN. Novel microporous composites of MOF-5 and polyaniline with high specific surface area. in Synthetic Metals. 2020;262:116348.
doi:10.1016/j.synthmet.2020.116348 .

Savić-Biserčić, Marjetka, Marjanović, Budimir, Zasonska, Beata A., Stojadinović, Stevan, Ćirić-Marjanović, Gordana N., "Novel microporous composites of MOF-5 and polyaniline with high specific surface area" in Synthetic Metals, 262 (2020):116348,
https://doi.org/10.1016/j.synthmet.2020.116348 . .

TY  - CHAP
AU  - Radoičić, Marija
AU  - Vranješ, Mila
AU  - Kuljanin-Jakovljević, Jadranka
AU  - Ćirić-Marjanović, Gordana
AU  - Šaponjić, Zoran
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12272
AB  - This research paper focuses on doped TiO2  nanocrystals of different shape, size and structures, in addition to nanocomposites consisting of TiO2  nanocrystals and conductive polymers (Polyaniline (PANI)). The primary objective of this research paper is to ensure understanding of the influence of size, shape, structure and doping level on optical and magnetic properties of TiO2  nanoparticles, as well as the interaction between nanoparticles and PANI due to the creation of desired photocatalytic properties of nanocomposites. The doping of TiO2  nanocrystals with rare earth ions opens up the possibility of controlling their optical properties. The Sm3+ doped TiO2  faceted nanocrystals exhibited red photoluminescence, associated with 4 G5/2-6 HJ  (J=5/2, 7/2 and 9/2) f–f transitions of Sm3+ in the 4f5  configuration, after band-to-band excitation, confirming the accomplishment of energy transfers. The Ni2+ doped TiO2  nanocrystals enabled the synthesis of optically transparent nanostructured films that showed room-temperature ferromagnetism with almost closed loop (HC ~ 150-200 Oe) and saturation magnetization in the range of 10-3-5x10-2 μB/Ni depending on dopant concentration. Ni2+ ions that substitute core Ti atoms were found to participate in the light excitation processes, too. The improvement of photocatalytic efficiency of TiO2  nanocrystals by surface modification with carbonized form of PANI was tested in degradation processes of Rhodamine B and Methylene blue. The carbonized PANI/TiO2  nanocomposites showed significantly higher photocatalytic efficacy compared to the bare TiO2 and the non-carbonized PANI/TiO2  nanocomposites. Their photocatalytic activity is influenced by their surface and crystalline structures, absorption coefficient in the visible part of the spectrum, high mobility of charge carriers and finally by the molecular structures of the organic dyes used.
AB  - Испитиване су допиране и недопиране наночестице титан (IV) оксида (ТiО2 ), великог енергијског процепа, различитих облика (сферични, тубуларни, штапићасти (елипсоидни)), величина кристалних структура, као и хибридни материјали-нанокомпозити на бази проводног полимера (полианилин, ПАНИ) и наночестица TiO2 . Испитивања утицаја величине, облика, структуре и нивоа допираности наночестица ТiО2  на њихове оптичке, магнетне и фотокаталитичке особине, као и разумевање интеракције наночестица и полимерне матрице (ПАНИ) у циљу креирања нанокомпозита одговарајућих фотокаталитичких својстава представљају главне правце овог истраживања. Обзиром на структуру енергетског процепа наночестица TiO2 , допирање јонима ретких земаља отвара могућност за контролу њихових оптичких карактеристика. Нанокристали TiO2  допирани јонима Sm3+ показују наранџасто-црвену емисију, која је последица f-f прелаза јона Sm3+ (4 G5/2→6 HJ  (J=5/2, 7/2 i 9/2)) и која потврђује постојање енергијског трансфера. Допирање наночестица TiO2  јонима Ni2+ отвара могућност за синтезу транспарентних наноструктурних филмова који показују феромагнeтно уређење на собној температури (HC ~ 150-200 Oe) и сатурациону магнетизацију у опсегу 10-3- 5x10-2 μB/Ni, у зависности од концентрације допанта. Следећи циљ ових истраживања био је повећање фотокаталитичке ефикасности/активности наночестица TiO2  површинском модификацијом проводним ПАНИ полимером у карбонизованој форми, уз дефинисање механизма процеса фотокаталитичке деградације модел молекула метиленско плавог (Methylene blue) и родамина Б (Rhodamine B). У поређењу са немодификованим наночестицама TiO2 , ПАНИ/TiO2  нанокомпозити, ексцитовани белом светлошћу, показали су значајно већу фотокаталитичку ефикасност. Процес карбонизације полианилина у ПАНИ/TiO2  нанокомпозитима је довео до даљег повећања њихове фотокаталитичке ефикасности. Фотокаталитичка активност нанокомпозита је условљена њиховом површинском структуром, високом мобилношћу носилаца наелектрисања и апсорпционим коефицијентом полианилина у видљивом делу спектра, као и молекулском структуром испитиваних боја.
T2  - Fascinating world of nanoscience and nanotechnology
T1  - Probing the optical, magnetic and photocatalytic properties of doped TiO2 nanocrystals and polymer-based nanocomposites for various applications
T1  - Испитивање оптичких, магнетних и фотокаталитичких особина допираних ТIО2 нанокристала и нанокомпозита на бази полимера за различите примене
VL  - 6
SP  - 155
EP  - 182
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12272
ER  - 

@inbook{
author = "Radoičić, Marija and Vranješ, Mila and Kuljanin-Jakovljević, Jadranka and Ćirić-Marjanović, Gordana and Šaponjić, Zoran",
year = "2020",
abstract = "This research paper focuses on doped TiO2  nanocrystals of different shape, size and structures, in addition to nanocomposites consisting of TiO2  nanocrystals and conductive polymers (Polyaniline (PANI)). The primary objective of this research paper is to ensure understanding of the influence of size, shape, structure and doping level on optical and magnetic properties of TiO2  nanoparticles, as well as the interaction between nanoparticles and PANI due to the creation of desired photocatalytic properties of nanocomposites. The doping of TiO2  nanocrystals with rare earth ions opens up the possibility of controlling their optical properties. The Sm3+ doped TiO2  faceted nanocrystals exhibited red photoluminescence, associated with 4 G5/2-6 HJ  (J=5/2, 7/2 and 9/2) f–f transitions of Sm3+ in the 4f5  configuration, after band-to-band excitation, confirming the accomplishment of energy transfers. The Ni2+ doped TiO2  nanocrystals enabled the synthesis of optically transparent nanostructured films that showed room-temperature ferromagnetism with almost closed loop (HC ~ 150-200 Oe) and saturation magnetization in the range of 10-3-5x10-2 μB/Ni depending on dopant concentration. Ni2+ ions that substitute core Ti atoms were found to participate in the light excitation processes, too. The improvement of photocatalytic efficiency of TiO2  nanocrystals by surface modification with carbonized form of PANI was tested in degradation processes of Rhodamine B and Methylene blue. The carbonized PANI/TiO2  nanocomposites showed significantly higher photocatalytic efficacy compared to the bare TiO2 and the non-carbonized PANI/TiO2  nanocomposites. Their photocatalytic activity is influenced by their surface and crystalline structures, absorption coefficient in the visible part of the spectrum, high mobility of charge carriers and finally by the molecular structures of the organic dyes used., Испитиване су допиране и недопиране наночестице титан (IV) оксида (ТiО2 ), великог енергијског процепа, различитих облика (сферични, тубуларни, штапићасти (елипсоидни)), величина кристалних структура, као и хибридни материјали-нанокомпозити на бази проводног полимера (полианилин, ПАНИ) и наночестица TiO2 . Испитивања утицаја величине, облика, структуре и нивоа допираности наночестица ТiО2  на њихове оптичке, магнетне и фотокаталитичке особине, као и разумевање интеракције наночестица и полимерне матрице (ПАНИ) у циљу креирања нанокомпозита одговарајућих фотокаталитичких својстава представљају главне правце овог истраживања. Обзиром на структуру енергетског процепа наночестица TiO2 , допирање јонима ретких земаља отвара могућност за контролу њихових оптичких карактеристика. Нанокристали TiO2  допирани јонима Sm3+ показују наранџасто-црвену емисију, која је последица f-f прелаза јона Sm3+ (4 G5/2→6 HJ  (J=5/2, 7/2 i 9/2)) и која потврђује постојање енергијског трансфера. Допирање наночестица TiO2  јонима Ni2+ отвара могућност за синтезу транспарентних наноструктурних филмова који показују феромагнeтно уређење на собној температури (HC ~ 150-200 Oe) и сатурациону магнетизацију у опсегу 10-3- 5x10-2 μB/Ni, у зависности од концентрације допанта. Следећи циљ ових истраживања био је повећање фотокаталитичке ефикасности/активности наночестица TiO2  површинском модификацијом проводним ПАНИ полимером у карбонизованој форми, уз дефинисање механизма процеса фотокаталитичке деградације модел молекула метиленско плавог (Methylene blue) и родамина Б (Rhodamine B). У поређењу са немодификованим наночестицама TiO2 , ПАНИ/TiO2  нанокомпозити, ексцитовани белом светлошћу, показали су значајно већу фотокаталитичку ефикасност. Процес карбонизације полианилина у ПАНИ/TiO2  нанокомпозитима је довео до даљег повећања њихове фотокаталитичке ефикасности. Фотокаталитичка активност нанокомпозита је условљена њиховом површинском структуром, високом мобилношћу носилаца наелектрисања и апсорпционим коефицијентом полианилина у видљивом делу спектра, као и молекулском структуром испитиваних боја.",
journal = "Fascinating world of nanoscience and nanotechnology",
booktitle = "Probing the optical, magnetic and photocatalytic properties of doped TiO2 nanocrystals and polymer-based nanocomposites for various applications, Испитивање оптичких, магнетних и фотокаталитичких особина допираних ТIО2 нанокристала и нанокомпозита на бази полимера за различите примене",
volume = "6",
pages = "155-182",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12272"
}

Radoičić, M., Vranješ, M., Kuljanin-Jakovljević, J., Ćirić-Marjanović, G.,& Šaponjić, Z.. (2020). Probing the optical, magnetic and photocatalytic properties of doped TiO2 nanocrystals and polymer-based nanocomposites for various applications. in Fascinating world of nanoscience and nanotechnology, 6, 155-182.
https://hdl.handle.net/21.15107/rcub_vinar_12272

Radoičić M, Vranješ M, Kuljanin-Jakovljević J, Ćirić-Marjanović G, Šaponjić Z. Probing the optical, magnetic and photocatalytic properties of doped TiO2 nanocrystals and polymer-based nanocomposites for various applications. in Fascinating world of nanoscience and nanotechnology. 2020;6:155-182.
https://hdl.handle.net/21.15107/rcub_vinar_12272 .

Radoičić, Marija, Vranješ, Mila, Kuljanin-Jakovljević, Jadranka, Ćirić-Marjanović, Gordana, Šaponjić, Zoran, "Probing the optical, magnetic and photocatalytic properties of doped TiO2 nanocrystals and polymer-based nanocomposites for various applications" in Fascinating world of nanoscience and nanotechnology, 6 (2020):155-182,
https://hdl.handle.net/21.15107/rcub_vinar_12272 .

TY  - JOUR
AU  - Savić-Biserčić, Marjetka
AU  - Marjanović, Budimir
AU  - Vasiljević-Nedić, Bojana
AU  - Mentus, Slavko V.
AU  - Zasonska, Beata A.
AU  - Ćirić-Marjanović, Gordana N.
PY  - 2019
UR  - https://linkinghub.elsevier.com/retrieve/pii/S1387181118305766
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/7969
AB  - Efficient and simple room temperature synthesis of pure phase metal-organic framework MOF-5 has been developed, based on the use of anhydrous zinc acetate, Zn(OAc)2, as a precursor, instead of zinc acetate dihydrate. Crucial influence of water on a reaction pathway was revealed. In order to obtain MOF-5, different amounts of water have been added into the solutions of Zn(OAc)2 in N,N-dimethylformamide (DMF) to prepare in situ zinc acetate hydrates with 0.25, 0.5, and 1.0 mol of water. Commercially available zinc acetate dihydrate was also used as a precursor for comparison. These solutions were mixed at room temperature with the solution of 1,4-benzenedicarboxylic acid in DMF in the absence of any base. Based on XRD, FTIR, and SEM measurements, it was shown that the optimal amount of water for the synthesis of completely pure, crystalline phase MOF-5 is 0.25–0.5 mol of water per one mole of Zn. The reaction systems with 1.0 and 2.0 mol of water per one mole of Zn also led to solids with MOF-5 as the dominant phase, but they also contain small amounts of another phase, formed due to the decomposition (hydrolysis) and/or distortion of the MOF-5 framework in the presence of excess amounts of water. The product synthesized in the system without any added water contains MOF-5 phase in a very small amount, while main phase is zinc 1,4-benzenedicarboxylate and/or zinc hydrogen 1,4-benzenedicarboxylate. Regular cubic submicro/microcrystal morphology exhibited the samples synthesized using 0.5 and 0.25 mol water per one mole of Zn (pure MOF-5), while for the samples synthesized at mole ratios H2O/Zn2+ = 1.0 and 2.0 other particle shapes are also seen. By nitrogen sorption measurements it was found that the highest values of BET specific surface area (1937 m2 g−1), micropore volume (0.83 cm3 g−1), and micropore area (1590 m2 g−1) showed MOF-5 prepared at mole ratio H2O/Zn2+ = 0.5, while the highest yield of MOF-5 is obtained with the theoretical mole ratio H2O/Zn2+ = 0.25. Thermal stability of synthesized materials was investigated by TGA. © 2018 Elsevier Inc.
T2  - Microporous and Mesoporous Materials
T1  - The quest for optimal water quantity in the synthesis of metal-organic framework MOF-5
VL  - 278
SP  - 23
EP  - 29
DO  - 10.1016/j.micromeso.2018.11.005
ER  - 

@article{
author = "Savić-Biserčić, Marjetka and Marjanović, Budimir and Vasiljević-Nedić, Bojana and Mentus, Slavko V. and Zasonska, Beata A. and Ćirić-Marjanović, Gordana N.",
year = "2019",
abstract = "Efficient and simple room temperature synthesis of pure phase metal-organic framework MOF-5 has been developed, based on the use of anhydrous zinc acetate, Zn(OAc)2, as a precursor, instead of zinc acetate dihydrate. Crucial influence of water on a reaction pathway was revealed. In order to obtain MOF-5, different amounts of water have been added into the solutions of Zn(OAc)2 in N,N-dimethylformamide (DMF) to prepare in situ zinc acetate hydrates with 0.25, 0.5, and 1.0 mol of water. Commercially available zinc acetate dihydrate was also used as a precursor for comparison. These solutions were mixed at room temperature with the solution of 1,4-benzenedicarboxylic acid in DMF in the absence of any base. Based on XRD, FTIR, and SEM measurements, it was shown that the optimal amount of water for the synthesis of completely pure, crystalline phase MOF-5 is 0.25–0.5 mol of water per one mole of Zn. The reaction systems with 1.0 and 2.0 mol of water per one mole of Zn also led to solids with MOF-5 as the dominant phase, but they also contain small amounts of another phase, formed due to the decomposition (hydrolysis) and/or distortion of the MOF-5 framework in the presence of excess amounts of water. The product synthesized in the system without any added water contains MOF-5 phase in a very small amount, while main phase is zinc 1,4-benzenedicarboxylate and/or zinc hydrogen 1,4-benzenedicarboxylate. Regular cubic submicro/microcrystal morphology exhibited the samples synthesized using 0.5 and 0.25 mol water per one mole of Zn (pure MOF-5), while for the samples synthesized at mole ratios H2O/Zn2+ = 1.0 and 2.0 other particle shapes are also seen. By nitrogen sorption measurements it was found that the highest values of BET specific surface area (1937 m2 g−1), micropore volume (0.83 cm3 g−1), and micropore area (1590 m2 g−1) showed MOF-5 prepared at mole ratio H2O/Zn2+ = 0.5, while the highest yield of MOF-5 is obtained with the theoretical mole ratio H2O/Zn2+ = 0.25. Thermal stability of synthesized materials was investigated by TGA. © 2018 Elsevier Inc.",
journal = "Microporous and Mesoporous Materials",
title = "The quest for optimal water quantity in the synthesis of metal-organic framework MOF-5",
volume = "278",
pages = "23-29",
doi = "10.1016/j.micromeso.2018.11.005"
}

Savić-Biserčić, M., Marjanović, B., Vasiljević-Nedić, B., Mentus, S. V., Zasonska, B. A.,& Ćirić-Marjanović, G. N.. (2019). The quest for optimal water quantity in the synthesis of metal-organic framework MOF-5. in Microporous and Mesoporous Materials, 278, 23-29.
https://doi.org/10.1016/j.micromeso.2018.11.005

Savić-Biserčić M, Marjanović B, Vasiljević-Nedić B, Mentus SV, Zasonska BA, Ćirić-Marjanović GN. The quest for optimal water quantity in the synthesis of metal-organic framework MOF-5. in Microporous and Mesoporous Materials. 2019;278:23-29.
doi:10.1016/j.micromeso.2018.11.005 .

Savić-Biserčić, Marjetka, Marjanović, Budimir, Vasiljević-Nedić, Bojana, Mentus, Slavko V., Zasonska, Beata A., Ćirić-Marjanović, Gordana N., "The quest for optimal water quantity in the synthesis of metal-organic framework MOF-5" in Microporous and Mesoporous Materials, 278 (2019):23-29,
https://doi.org/10.1016/j.micromeso.2018.11.005 . .

TY  - JOUR
AU  - Vranješ, Mila
AU  - Kuljanin-Jakovljević, Jadranka Ž.
AU  - Milošević, Milica V.
AU  - Ćirić-Marjanović, Gordana N.
AU  - Stoiljković, Milovan
AU  - Konstantinović, Zorica
AU  - Pavlović, Vladimir B.
AU  - Milivojević, Dušan
AU  - Šaponjić, Zoran
PY  - 2019
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8358
AB  - Hydrothermal synthesis of Mn2+ doped titanate nanotubes (TNTs), which exhibited room temperature ferromagnetism (RTFM), is reported. Dispersions of 1 and 5 at.% Mn2+ doped anatase TiO2 nanocrystals were used as precursors. Size and shape of Mn2+ doped TNTs and precursor nanocrystals were studied by transmission electron microscopy (TEM). The relatively uniform size distribution of transverse dimension of nanotubes of about 10 nm was observed while their lengths varied up to few hundred nanometers. The X-Ray Diffraction (XRD) analysis and Raman spectroscopy of resultant powder confirmed the hydrogen dititanate (H2Ti2O5 x H2O) crystal phase of Mn2+ doped TNTs with the presence of small amount of sodium titanates. Electron paramagnetic resonance (EPR) experiments were performed to probe the local atomic and electronic structure of Mn in the nanotubes. Room temperature ferromagnetic ordering with saturation magnetic moment (Ms) in the range of 0.6–1.5 μB per Mn atom was observed. © 2019 Elsevier Masson SAS
T2  - Solid State Sciences
T1  - Hydrothermal synthesis of Mn2+ doped titanate nanotubes: Investigation of their structure and room temperature ferromagnetic behavior
VL  - 94
SP  - 155
EP  - 161
DO  - 10.1016/j.solidstatesciences.2019.06.008
ER  - 

@article{
author = "Vranješ, Mila and Kuljanin-Jakovljević, Jadranka Ž. and Milošević, Milica V. and Ćirić-Marjanović, Gordana N. and Stoiljković, Milovan and Konstantinović, Zorica and Pavlović, Vladimir B. and Milivojević, Dušan and Šaponjić, Zoran",
year = "2019",
abstract = "Hydrothermal synthesis of Mn2+ doped titanate nanotubes (TNTs), which exhibited room temperature ferromagnetism (RTFM), is reported. Dispersions of 1 and 5 at.% Mn2+ doped anatase TiO2 nanocrystals were used as precursors. Size and shape of Mn2+ doped TNTs and precursor nanocrystals were studied by transmission electron microscopy (TEM). The relatively uniform size distribution of transverse dimension of nanotubes of about 10 nm was observed while their lengths varied up to few hundred nanometers. The X-Ray Diffraction (XRD) analysis and Raman spectroscopy of resultant powder confirmed the hydrogen dititanate (H2Ti2O5 x H2O) crystal phase of Mn2+ doped TNTs with the presence of small amount of sodium titanates. Electron paramagnetic resonance (EPR) experiments were performed to probe the local atomic and electronic structure of Mn in the nanotubes. Room temperature ferromagnetic ordering with saturation magnetic moment (Ms) in the range of 0.6–1.5 μB per Mn atom was observed. © 2019 Elsevier Masson SAS",
journal = "Solid State Sciences",
title = "Hydrothermal synthesis of Mn2+ doped titanate nanotubes: Investigation of their structure and room temperature ferromagnetic behavior",
volume = "94",
pages = "155-161",
doi = "10.1016/j.solidstatesciences.2019.06.008"
}

Vranješ, M., Kuljanin-Jakovljević, J. Ž., Milošević, M. V., Ćirić-Marjanović, G. N., Stoiljković, M., Konstantinović, Z., Pavlović, V. B., Milivojević, D.,& Šaponjić, Z.. (2019). Hydrothermal synthesis of Mn2+ doped titanate nanotubes: Investigation of their structure and room temperature ferromagnetic behavior. in Solid State Sciences, 94, 155-161.
https://doi.org/10.1016/j.solidstatesciences.2019.06.008

Vranješ M, Kuljanin-Jakovljević JŽ, Milošević MV, Ćirić-Marjanović GN, Stoiljković M, Konstantinović Z, Pavlović VB, Milivojević D, Šaponjić Z. Hydrothermal synthesis of Mn2+ doped titanate nanotubes: Investigation of their structure and room temperature ferromagnetic behavior. in Solid State Sciences. 2019;94:155-161.
doi:10.1016/j.solidstatesciences.2019.06.008 .

Vranješ, Mila, Kuljanin-Jakovljević, Jadranka Ž., Milošević, Milica V., Ćirić-Marjanović, Gordana N., Stoiljković, Milovan, Konstantinović, Zorica, Pavlović, Vladimir B., Milivojević, Dušan, Šaponjić, Zoran, "Hydrothermal synthesis of Mn2+ doped titanate nanotubes: Investigation of their structure and room temperature ferromagnetic behavior" in Solid State Sciences, 94 (2019):155-161,
https://doi.org/10.1016/j.solidstatesciences.2019.06.008 . .

TY  - JOUR
AU  - Carević, Milica
AU  - Abazović, Nadica
AU  - Mitrić, Miodrag
AU  - Ćirić-Marjanović, Gordana N.
AU  - Mojović, Miloš D.
AU  - Ahrenkiel, Scott Phillip
AU  - Čomor, Mirjana
PY  - 2018
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1947
AB  - A serie of novel ZrO2/Polyaniline (PANI) hybrid nanocomposite powders were successfully synthesized by the oxidative polymerization of aniline with ammonium peroxydisulfate (APS) in water, in the presence of ZrO2 nanoparticles. Syntheses were performed at initial ZrO2/aniline mole ratios 50,100 and 150 to produce ZP-50, ZP-100 and ZP-150. The morphological, structural, and optical properties of the synthesized nano composites were studied using Transmission electron microscopy (TEM), X-ray powder diffraction (XRD), Raman, UV-Vis and Electron-paramagnetic resonance (EPR) spectroscopies. EPR spectra of ZP-50 and ZP-100 nanocomposites showed the presence of intensive peak at the g-values comparable to that for free electrons (2.0023) indicating the presence of oligo/poly (semiquinone radical cations), i.e. polarons as charge carriers in PANI part; ZP-150 showed weak polaron peak of PANI, and peak that can be assigned to defects in zirconia matrix (Zr3+, oxygen vacancies). The monoclinic crystal structure of ZrO2 nanoparticles in all nanocomposites was confirmed by XRD and by Raman spectroscopy. The photocatalytic activities of ZP nanocomposites were evaluated using the photocatalytic degradation of trichlorophenol (TCP) and Rhodamine B model compounds and compared with the activity of bare ZrO2 nanoparticles. Enhanced degradation efficiencies of nanocomposites regarding TCP degradation were observed. (C) 2017 Elsevier B.V. All rights reserved.
T2  - Materials Chemistry and Physics
T1  - Properties of Zirconia/Polyaniline hybrid nanocomposites and their application as photocatalysts for degradation of model pollutants
VL  - 205
SP  - 130
EP  - 137
DO  - 10.1016/j.matchemphys.2017.11.016
ER  - 

@article{
author = "Carević, Milica and Abazović, Nadica and Mitrić, Miodrag and Ćirić-Marjanović, Gordana N. and Mojović, Miloš D. and Ahrenkiel, Scott Phillip and Čomor, Mirjana",
year = "2018",
abstract = "A serie of novel ZrO2/Polyaniline (PANI) hybrid nanocomposite powders were successfully synthesized by the oxidative polymerization of aniline with ammonium peroxydisulfate (APS) in water, in the presence of ZrO2 nanoparticles. Syntheses were performed at initial ZrO2/aniline mole ratios 50,100 and 150 to produce ZP-50, ZP-100 and ZP-150. The morphological, structural, and optical properties of the synthesized nano composites were studied using Transmission electron microscopy (TEM), X-ray powder diffraction (XRD), Raman, UV-Vis and Electron-paramagnetic resonance (EPR) spectroscopies. EPR spectra of ZP-50 and ZP-100 nanocomposites showed the presence of intensive peak at the g-values comparable to that for free electrons (2.0023) indicating the presence of oligo/poly (semiquinone radical cations), i.e. polarons as charge carriers in PANI part; ZP-150 showed weak polaron peak of PANI, and peak that can be assigned to defects in zirconia matrix (Zr3+, oxygen vacancies). The monoclinic crystal structure of ZrO2 nanoparticles in all nanocomposites was confirmed by XRD and by Raman spectroscopy. The photocatalytic activities of ZP nanocomposites were evaluated using the photocatalytic degradation of trichlorophenol (TCP) and Rhodamine B model compounds and compared with the activity of bare ZrO2 nanoparticles. Enhanced degradation efficiencies of nanocomposites regarding TCP degradation were observed. (C) 2017 Elsevier B.V. All rights reserved.",
journal = "Materials Chemistry and Physics",
title = "Properties of Zirconia/Polyaniline hybrid nanocomposites and their application as photocatalysts for degradation of model pollutants",
volume = "205",
pages = "130-137",
doi = "10.1016/j.matchemphys.2017.11.016"
}

Carević, M., Abazović, N., Mitrić, M., Ćirić-Marjanović, G. N., Mojović, M. D., Ahrenkiel, S. P.,& Čomor, M.. (2018). Properties of Zirconia/Polyaniline hybrid nanocomposites and their application as photocatalysts for degradation of model pollutants. in Materials Chemistry and Physics, 205, 130-137.
https://doi.org/10.1016/j.matchemphys.2017.11.016

Carević M, Abazović N, Mitrić M, Ćirić-Marjanović GN, Mojović MD, Ahrenkiel SP, Čomor M. Properties of Zirconia/Polyaniline hybrid nanocomposites and their application as photocatalysts for degradation of model pollutants. in Materials Chemistry and Physics. 2018;205:130-137.
doi:10.1016/j.matchemphys.2017.11.016 .

Carević, Milica, Abazović, Nadica, Mitrić, Miodrag, Ćirić-Marjanović, Gordana N., Mojović, Miloš D., Ahrenkiel, Scott Phillip, Čomor, Mirjana, "Properties of Zirconia/Polyaniline hybrid nanocomposites and their application as photocatalysts for degradation of model pollutants" in Materials Chemistry and Physics, 205 (2018):130-137,
https://doi.org/10.1016/j.matchemphys.2017.11.016 . .

TY  - JOUR
AU  - Stamenović, Una
AU  - Gavrilov, Nemanja M.
AU  - Pašti, Igor A.
AU  - Otoničar, Mojca
AU  - Ćirić-Marjanović, Gordana N.
AU  - Škapin, Srečo Davor
AU  - Mitrić, Miodrag
AU  - Vodnik, Vesna
PY  - 2018
UR  - https://linkinghub.elsevier.com/retrieve/pii/S0013468618312799
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/7717
AB  - A facile and fast aqueous phase-based strategy to synthesize silver-polyaniline-polyvinylpyrrolidone (Ag-PANI-PVP) nanocomposites, via chemical oxidative polymerization method is presented. In the presence of polyvinylpyrrolidone (PVP), which has an accelerating effect on the oxidation of aniline with silver nitrate, Ag nanoparticles (AgNPs) were in situ generated in aqueous solution during simultaneous formation of polyaniline (PANI), without any additional reducing agent or complicated treatment. We have demonstrated synthesis of three stabile Ag-PANI-PVP nanocomposites with different content, size, and morphology of Ag nanoparticles by varying the experimental parameters, such as pH and PVP concentration. As a result, this led to different Ag nanostructures (spherical and polyhedral NPs), and, consequently, different morphology of formed nanocomposites (granular and nanosheets). The physicochemical properties of nanocomposites were examined by using different analytical techniques (UV–Vis, TEM, FESEM, FT-IR, XRD, and Raman). It is found that optical properties, electrical conductivity and the content of Ag in the composites vary depending on the synthetic conditions. The electrocatalytic behavior of Ag-PANI-PVP nanocomposites was examined towards the oxygen reduction reaction in acidic and alkaline media. All tested nanocomposites showed high electrocatalytic activity, while the most active catalyst is the one with the highest electrical conductivity (≈0.6 S cm−1) and the lowest Ag content (3.4 wt%), synthesized in the solution without added acid. The simplicity of synthesis and good electrocatalytic efficiency of prepared nanocomposites combined with large-scale availability make them attractive as Pt-free electrocatalysts.
T2  - Electrochimica Acta
T1  - One-pot synthesis of novel silver-polyaniline-polyvinylpyrrolidone electrocatalysts for efficient oxygen reduction reaction
VL  - 281
SP  - 549
EP  - 561
DO  - 10.1016/j.electacta.2018.05.202
ER  - 

@article{
author = "Stamenović, Una and Gavrilov, Nemanja M. and Pašti, Igor A. and Otoničar, Mojca and Ćirić-Marjanović, Gordana N. and Škapin, Srečo Davor and Mitrić, Miodrag and Vodnik, Vesna",
year = "2018",
abstract = "A facile and fast aqueous phase-based strategy to synthesize silver-polyaniline-polyvinylpyrrolidone (Ag-PANI-PVP) nanocomposites, via chemical oxidative polymerization method is presented. In the presence of polyvinylpyrrolidone (PVP), which has an accelerating effect on the oxidation of aniline with silver nitrate, Ag nanoparticles (AgNPs) were in situ generated in aqueous solution during simultaneous formation of polyaniline (PANI), without any additional reducing agent or complicated treatment. We have demonstrated synthesis of three stabile Ag-PANI-PVP nanocomposites with different content, size, and morphology of Ag nanoparticles by varying the experimental parameters, such as pH and PVP concentration. As a result, this led to different Ag nanostructures (spherical and polyhedral NPs), and, consequently, different morphology of formed nanocomposites (granular and nanosheets). The physicochemical properties of nanocomposites were examined by using different analytical techniques (UV–Vis, TEM, FESEM, FT-IR, XRD, and Raman). It is found that optical properties, electrical conductivity and the content of Ag in the composites vary depending on the synthetic conditions. The electrocatalytic behavior of Ag-PANI-PVP nanocomposites was examined towards the oxygen reduction reaction in acidic and alkaline media. All tested nanocomposites showed high electrocatalytic activity, while the most active catalyst is the one with the highest electrical conductivity (≈0.6 S cm−1) and the lowest Ag content (3.4 wt%), synthesized in the solution without added acid. The simplicity of synthesis and good electrocatalytic efficiency of prepared nanocomposites combined with large-scale availability make them attractive as Pt-free electrocatalysts.",
journal = "Electrochimica Acta",
title = "One-pot synthesis of novel silver-polyaniline-polyvinylpyrrolidone electrocatalysts for efficient oxygen reduction reaction",
volume = "281",
pages = "549-561",
doi = "10.1016/j.electacta.2018.05.202"
}

Stamenović, U., Gavrilov, N. M., Pašti, I. A., Otoničar, M., Ćirić-Marjanović, G. N., Škapin, S. D., Mitrić, M.,& Vodnik, V.. (2018). One-pot synthesis of novel silver-polyaniline-polyvinylpyrrolidone electrocatalysts for efficient oxygen reduction reaction. in Electrochimica Acta, 281, 549-561.
https://doi.org/10.1016/j.electacta.2018.05.202

Stamenović U, Gavrilov NM, Pašti IA, Otoničar M, Ćirić-Marjanović GN, Škapin SD, Mitrić M, Vodnik V. One-pot synthesis of novel silver-polyaniline-polyvinylpyrrolidone electrocatalysts for efficient oxygen reduction reaction. in Electrochimica Acta. 2018;281:549-561.
doi:10.1016/j.electacta.2018.05.202 .

Stamenović, Una, Gavrilov, Nemanja M., Pašti, Igor A., Otoničar, Mojca, Ćirić-Marjanović, Gordana N., Škapin, Srečo Davor, Mitrić, Miodrag, Vodnik, Vesna, "One-pot synthesis of novel silver-polyaniline-polyvinylpyrrolidone electrocatalysts for efficient oxygen reduction reaction" in Electrochimica Acta, 281 (2018):549-561,
https://doi.org/10.1016/j.electacta.2018.05.202 . .

TY  - JOUR
AU  - Radoičić, Marija B.
AU  - Ćirić-Marjanović, Gordana N.
AU  - Spasojević, Vuk D.
AU  - Ahrenkiel, Scott Phillip
AU  - Mitrić, Miodrag
AU  - Novaković, Tatjana
AU  - Šaponjić, Zoran
PY  - 2017
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1597
AB  - A simple bottom-up method for the preparation of novel and very efficient photocatalytic nanocomposite system based on carbonized form of polyaniline (PANI) and colloidal TiO2 nanocrystals has been developed. The carbonized PANI/TiO2 nanocomposites were synthesized in a two-step procedure. Firstly, non-carbonized PANI/TiO2 nanocomposites were synthesized by the chemical oxidative polymerization of aniline (ANI) with ammonium peroxydisulfate, in the presence of colloidal TiO2 nanoparticles (TiO2 NPs) (d 4.5 nm). Initial [TiO2 NANI] mole ratios were 20, 50, and 80. In the second step, following the polymerization process, the carbonization of PANI/TiO2 nanocomposites was performed by thermal treatment in an inert atmosphere at 650 degrees C. The morphological and structural properties of the carbonized nanocomposites were studied using transmission electron microscopy (TEM), scanning electron microscopy (SEM), X-ray powder diffraction (XRD) and Raman spectroscopy. The accomplishment of complete carbonization of PANI in PANI/TiO2 nanocomposites was confirmed by Raman spectroscopy. The appearance of anatase and rutile crystal forms in TiO2 NPs upon carbonization, with mass ratio depending on the initial molar ratio of ANI and TiO2 NPs was revealed by XRD measurements, TEM, SEM and Raman spectroscopy. The photocatalytic activities of carbonized PANI/TiO2 nanocomposites were evaluated following the photocatalytic degradation processes of Rhodamine B and Methylene blue. Carbonized PANI/TiO2 nanocomposites showed higher photocatalytic efficacy compared to bare TiO2 NPs and non-carbonized PANI/TiO2 nanocomposites. The porosity and surface structure of carbonized PANI/TiO2 nanocomposites, as well as crystalline structure of TiO2, affect photocatalytic activity of nanocomposites. (C) 2017 Elsevier B.V. All rights reserved.
T2  - Applied Catalysis. B: Environmental
T1  - Superior photocatalytic properties of carbonized PANI/TiO2 nanocomposites
VL  - 213
SP  - 155
EP  - 166
DO  - 10.1016/j.apcatb.2017.05.023
ER  - 

@article{
author = "Radoičić, Marija B. and Ćirić-Marjanović, Gordana N. and Spasojević, Vuk D. and Ahrenkiel, Scott Phillip and Mitrić, Miodrag and Novaković, Tatjana and Šaponjić, Zoran",
year = "2017",
abstract = "A simple bottom-up method for the preparation of novel and very efficient photocatalytic nanocomposite system based on carbonized form of polyaniline (PANI) and colloidal TiO2 nanocrystals has been developed. The carbonized PANI/TiO2 nanocomposites were synthesized in a two-step procedure. Firstly, non-carbonized PANI/TiO2 nanocomposites were synthesized by the chemical oxidative polymerization of aniline (ANI) with ammonium peroxydisulfate, in the presence of colloidal TiO2 nanoparticles (TiO2 NPs) (d 4.5 nm). Initial [TiO2 NANI] mole ratios were 20, 50, and 80. In the second step, following the polymerization process, the carbonization of PANI/TiO2 nanocomposites was performed by thermal treatment in an inert atmosphere at 650 degrees C. The morphological and structural properties of the carbonized nanocomposites were studied using transmission electron microscopy (TEM), scanning electron microscopy (SEM), X-ray powder diffraction (XRD) and Raman spectroscopy. The accomplishment of complete carbonization of PANI in PANI/TiO2 nanocomposites was confirmed by Raman spectroscopy. The appearance of anatase and rutile crystal forms in TiO2 NPs upon carbonization, with mass ratio depending on the initial molar ratio of ANI and TiO2 NPs was revealed by XRD measurements, TEM, SEM and Raman spectroscopy. The photocatalytic activities of carbonized PANI/TiO2 nanocomposites were evaluated following the photocatalytic degradation processes of Rhodamine B and Methylene blue. Carbonized PANI/TiO2 nanocomposites showed higher photocatalytic efficacy compared to bare TiO2 NPs and non-carbonized PANI/TiO2 nanocomposites. The porosity and surface structure of carbonized PANI/TiO2 nanocomposites, as well as crystalline structure of TiO2, affect photocatalytic activity of nanocomposites. (C) 2017 Elsevier B.V. All rights reserved.",
journal = "Applied Catalysis. B: Environmental",
title = "Superior photocatalytic properties of carbonized PANI/TiO2 nanocomposites",
volume = "213",
pages = "155-166",
doi = "10.1016/j.apcatb.2017.05.023"
}

Radoičić, M. B., Ćirić-Marjanović, G. N., Spasojević, V. D., Ahrenkiel, S. P., Mitrić, M., Novaković, T.,& Šaponjić, Z.. (2017). Superior photocatalytic properties of carbonized PANI/TiO2 nanocomposites. in Applied Catalysis. B: Environmental, 213, 155-166.
https://doi.org/10.1016/j.apcatb.2017.05.023

Radoičić MB, Ćirić-Marjanović GN, Spasojević VD, Ahrenkiel SP, Mitrić M, Novaković T, Šaponjić Z. Superior photocatalytic properties of carbonized PANI/TiO2 nanocomposites. in Applied Catalysis. B: Environmental. 2017;213:155-166.
doi:10.1016/j.apcatb.2017.05.023 .

Radoičić, Marija B., Ćirić-Marjanović, Gordana N., Spasojević, Vuk D., Ahrenkiel, Scott Phillip, Mitrić, Miodrag, Novaković, Tatjana, Šaponjić, Zoran, "Superior photocatalytic properties of carbonized PANI/TiO2 nanocomposites" in Applied Catalysis. B: Environmental, 213 (2017):155-166,
https://doi.org/10.1016/j.apcatb.2017.05.023 . .

TY  - CONF
AU  - Bogdanović, Una
AU  - Vodnik, Vesna
AU  - Pašti, Igor A.
AU  - Ćirić-Marjanović, Gordana N.
AU  - Mitrić, Miodrag
AU  - Ahrenkiel, Scott Phillip
PY  - 2016
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9178
AB  - Gold‒polyaniline (AuPANI) nanocomposite, with granular morphology  of PANI and rod‒like Au nanoparticles (NPs) as dominate structure distributed in  it,  was  prepared  by  interfacial  polymerization  method  in  an  immiscible water/toluene     biphasic     system.     Simultaneously     with     the     aniline polymerization to polyaniline (PANI) by HAuCl4, as an oxidant, AuNPs are formed. AuPANI composite as green precipitate is collected from aqueous phase.  Polyaniline  in  the  composite  is  in  the  conductive  emeraldine  salt form  (PANIES),  with  high  amount  of  Au  (28.85  wt  %).  Nanocomposite showed   great   electrocatalytic   activity   towards   the   electrochemical   O2reduction   reaction   (ORR),   with   high   ORR   onset   potential   and   high selectivity  for  O2reduction  to  water.  This  makes  it  a  good  candidate  for  a new class of Pt‒free ORR catalyst.
PB  - Society of Physical Chemists of Serbia
C3  - Physical chemistry 2016 : 13th international conference on fundamental and applied aspects of physical chemistry
T1  - Electrocatalityc application of gold-polyaniline nanocomposite
SP  - 391
EP  - 394
UR  - https://hdl.handle.net/21.15107/rcub_vinar_9178
ER  - 

@conference{
author = "Bogdanović, Una and Vodnik, Vesna and Pašti, Igor A. and Ćirić-Marjanović, Gordana N. and Mitrić, Miodrag and Ahrenkiel, Scott Phillip",
year = "2016",
abstract = "Gold‒polyaniline (AuPANI) nanocomposite, with granular morphology  of PANI and rod‒like Au nanoparticles (NPs) as dominate structure distributed in  it,  was  prepared  by  interfacial  polymerization  method  in  an  immiscible water/toluene     biphasic     system.     Simultaneously     with     the     aniline polymerization to polyaniline (PANI) by HAuCl4, as an oxidant, AuNPs are formed. AuPANI composite as green precipitate is collected from aqueous phase.  Polyaniline  in  the  composite  is  in  the  conductive  emeraldine  salt form  (PANIES),  with  high  amount  of  Au  (28.85  wt  %).  Nanocomposite showed   great   electrocatalytic   activity   towards   the   electrochemical   O2reduction   reaction   (ORR),   with   high   ORR   onset   potential   and   high selectivity  for  O2reduction  to  water.  This  makes  it  a  good  candidate  for  a new class of Pt‒free ORR catalyst.",
publisher = "Society of Physical Chemists of Serbia",
journal = "Physical chemistry 2016 : 13th international conference on fundamental and applied aspects of physical chemistry",
title = "Electrocatalityc application of gold-polyaniline nanocomposite",
pages = "391-394",
url = "https://hdl.handle.net/21.15107/rcub_vinar_9178"
}

Bogdanović, U., Vodnik, V., Pašti, I. A., Ćirić-Marjanović, G. N., Mitrić, M.,& Ahrenkiel, S. P.. (2016). Electrocatalityc application of gold-polyaniline nanocomposite. in Physical chemistry 2016 : 13th international conference on fundamental and applied aspects of physical chemistry
Society of Physical Chemists of Serbia., 391-394.
https://hdl.handle.net/21.15107/rcub_vinar_9178

Bogdanović U, Vodnik V, Pašti IA, Ćirić-Marjanović GN, Mitrić M, Ahrenkiel SP. Electrocatalityc application of gold-polyaniline nanocomposite. in Physical chemistry 2016 : 13th international conference on fundamental and applied aspects of physical chemistry. 2016;:391-394.
https://hdl.handle.net/21.15107/rcub_vinar_9178 .

Bogdanović, Una, Vodnik, Vesna, Pašti, Igor A., Ćirić-Marjanović, Gordana N., Mitrić, Miodrag, Ahrenkiel, Scott Phillip, "Electrocatalityc application of gold-polyaniline nanocomposite" in Physical chemistry 2016 : 13th international conference on fundamental and applied aspects of physical chemistry (2016):391-394,
https://hdl.handle.net/21.15107/rcub_vinar_9178 .

TY  - JOUR
AU  - Ležaić Janošević, Aleksandra 
AU  - Bajuk-Bogdanović, Danica V.
AU  - Radoičić, Marija B.
AU  - Mirsky, Vladimir M.
AU  - Ćirić-Marjanović, Gordana N.
PY  - 2016
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1027
AB  - Nanofibrous polyanilines (PANIs) were synthesized by several oxidative polymerization pathways that have in common the presence of excess oxidant(s) (ammonium peroxydisulfate and its mixture with hydrogen peroxide), the absence of added acid, and the absence of external template (self-assembly process). Conducting forms of the synthesized PANI nanofibers (re)doped with various acids were further used as precursors for carbonization process to obtain nanofibrous carbonaceous materials (Carb-PANIs). Morphology, molecular structure, surface properties and electrical characteristics of PANI nanofibrous precursors and their carbonized counterparts were studied by scanning electron microscopy, Raman spectroscopy, by measurements of zeta-potential and determination of isoelectric points, as well as by measurements of electrical conductivity. (C) 2016 Elsevier B.V. All rights reserved.
PB  - Elsevier
T2  - Synthetic Metals
T1  - Influence of synthetic conditions on the structure and electrical properties of nanofibrous polyanilines and their nanofibrous carbonized forms
VL  - 214
SP  - 35
EP  - 44
DO  - 10.1016/j.synthmet.2016.01.015
ER  - 

@article{
author = "Ležaić Janošević, Aleksandra  and Bajuk-Bogdanović, Danica V. and Radoičić, Marija B. and Mirsky, Vladimir M. and Ćirić-Marjanović, Gordana N.",
year = "2016",
abstract = "Nanofibrous polyanilines (PANIs) were synthesized by several oxidative polymerization pathways that have in common the presence of excess oxidant(s) (ammonium peroxydisulfate and its mixture with hydrogen peroxide), the absence of added acid, and the absence of external template (self-assembly process). Conducting forms of the synthesized PANI nanofibers (re)doped with various acids were further used as precursors for carbonization process to obtain nanofibrous carbonaceous materials (Carb-PANIs). Morphology, molecular structure, surface properties and electrical characteristics of PANI nanofibrous precursors and their carbonized counterparts were studied by scanning electron microscopy, Raman spectroscopy, by measurements of zeta-potential and determination of isoelectric points, as well as by measurements of electrical conductivity. (C) 2016 Elsevier B.V. All rights reserved.",
publisher = "Elsevier",
journal = "Synthetic Metals",
title = "Influence of synthetic conditions on the structure and electrical properties of nanofibrous polyanilines and their nanofibrous carbonized forms",
volume = "214",
pages = "35-44",
doi = "10.1016/j.synthmet.2016.01.015"
}

Ležaić Janošević, A., Bajuk-Bogdanović, D. V., Radoičić, M. B., Mirsky, V. M.,& Ćirić-Marjanović, G. N.. (2016). Influence of synthetic conditions on the structure and electrical properties of nanofibrous polyanilines and their nanofibrous carbonized forms. in Synthetic Metals
Elsevier., 214, 35-44.
https://doi.org/10.1016/j.synthmet.2016.01.015

Ležaić Janošević A, Bajuk-Bogdanović DV, Radoičić MB, Mirsky VM, Ćirić-Marjanović GN. Influence of synthetic conditions on the structure and electrical properties of nanofibrous polyanilines and their nanofibrous carbonized forms. in Synthetic Metals. 2016;214:35-44.
doi:10.1016/j.synthmet.2016.01.015 .

Ležaić Janošević, Aleksandra , Bajuk-Bogdanović, Danica V., Radoičić, Marija B., Mirsky, Vladimir M., Ćirić-Marjanović, Gordana N., "Influence of synthetic conditions on the structure and electrical properties of nanofibrous polyanilines and their nanofibrous carbonized forms" in Synthetic Metals, 214 (2016):35-44,
https://doi.org/10.1016/j.synthmet.2016.01.015 . .

TY  - CONF
AU  - Bogdanović, Una
AU  - Vodnik, Vesna
AU  - Ahrenkiel, Scott Phillip
AU  - Stoiljković, Milovan
AU  - Ćirić-Marjanović, Gordana N.
AU  - Nedeljković, Jovan
PY  - 2015
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12537
C3  - Fourth International Conference on Multifunctional, Hybrid and Nanomaterials : Programme book
T1  - Interfacial synthesis and characterization of gold/polyaniline nanocomposites
SP  - P2.131
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12537
ER  - 

@conference{
author = "Bogdanović, Una and Vodnik, Vesna and Ahrenkiel, Scott Phillip and Stoiljković, Milovan and Ćirić-Marjanović, Gordana N. and Nedeljković, Jovan",
year = "2015",
journal = "Fourth International Conference on Multifunctional, Hybrid and Nanomaterials : Programme book",
title = "Interfacial synthesis and characterization of gold/polyaniline nanocomposites",
pages = "P2.131",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12537"
}

Bogdanović, U., Vodnik, V., Ahrenkiel, S. P., Stoiljković, M., Ćirić-Marjanović, G. N.,& Nedeljković, J.. (2015). Interfacial synthesis and characterization of gold/polyaniline nanocomposites. in Fourth International Conference on Multifunctional, Hybrid and Nanomaterials : Programme book, P2.131.
https://hdl.handle.net/21.15107/rcub_vinar_12537

Bogdanović U, Vodnik V, Ahrenkiel SP, Stoiljković M, Ćirić-Marjanović GN, Nedeljković J. Interfacial synthesis and characterization of gold/polyaniline nanocomposites. in Fourth International Conference on Multifunctional, Hybrid and Nanomaterials : Programme book. 2015;:P2.131.
https://hdl.handle.net/21.15107/rcub_vinar_12537 .

Bogdanović, Una, Vodnik, Vesna, Ahrenkiel, Scott Phillip, Stoiljković, Milovan, Ćirić-Marjanović, Gordana N., Nedeljković, Jovan, "Interfacial synthesis and characterization of gold/polyaniline nanocomposites" in Fourth International Conference on Multifunctional, Hybrid and Nanomaterials : Programme book (2015):P2.131,
https://hdl.handle.net/21.15107/rcub_vinar_12537 .

TY  - JOUR
AU  - Pašti, Igor A.
AU  - Gavrilov, Nemanja M.
AU  - Dobrota, Ana S.
AU  - Momčilović, Milan Z.
AU  - Stojmenović, Marija
AU  - Topalov, Angel
AU  - Stanković, Dalibor M.
AU  - Babić, Biljana M.
AU  - Ćirić-Marjanović, Gordana N.
AU  - Mentus, Slavko V.
PY  - 2015
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/769
AB  - In order to elucidate the role of B, N, and P dopants in carbon materials on the kinetics of oxygen reduction reaction (ORR) and to provide a fair comparison of the effects of each dopant, a series of ordered mesoporous carbons (OMCs) with low concentration of heteroatoms ( LT 1 at%) has been prepared. Doped OMCs were characterized using X-ray photoelectron spectroscopy (XPS), inductively coupled plasma optical emission spectroscopy (ICP-OES), Raman spectroscopy, X-ray powder diffraction (XRD), and N-2 physisorption measurements. Comparative study of the ORR activity of these materials in alkaline solution was performed using rotating disk electrode voltammetry. The experiments evidenced that, compared to non-doped OMC, charge transfer kinetics was improved independently on the nature of the heteroatom. The decrease of the ORR overvoltage and the increase of the mass activity upon doping are similar for B and P and less prominent for N. On the other hand, OMCs doped with low levels of B and N were found to be selective for O-2 reduction to peroxide, while for P-doped OMCs, the apparent number of electrons consumed per O-2 molecule was up to 3.1. Experimental measurements were complemented by density functional theory (DFT) calculations.
T2  - Electrocatalysis
T1  - The Effects of a Low-Level Boron, Phosphorus, and Nitrogen Doping on the Oxygen Reduction Activity of Ordered Mesoporous Carbons
VL  - 6
IS  - 6
SP  - 498
EP  - 511
DO  - 10.1007/s12678-015-0271-0
ER  - 

@article{
author = "Pašti, Igor A. and Gavrilov, Nemanja M. and Dobrota, Ana S. and Momčilović, Milan Z. and Stojmenović, Marija and Topalov, Angel and Stanković, Dalibor M. and Babić, Biljana M. and Ćirić-Marjanović, Gordana N. and Mentus, Slavko V.",
year = "2015",
abstract = "In order to elucidate the role of B, N, and P dopants in carbon materials on the kinetics of oxygen reduction reaction (ORR) and to provide a fair comparison of the effects of each dopant, a series of ordered mesoporous carbons (OMCs) with low concentration of heteroatoms ( LT 1 at%) has been prepared. Doped OMCs were characterized using X-ray photoelectron spectroscopy (XPS), inductively coupled plasma optical emission spectroscopy (ICP-OES), Raman spectroscopy, X-ray powder diffraction (XRD), and N-2 physisorption measurements. Comparative study of the ORR activity of these materials in alkaline solution was performed using rotating disk electrode voltammetry. The experiments evidenced that, compared to non-doped OMC, charge transfer kinetics was improved independently on the nature of the heteroatom. The decrease of the ORR overvoltage and the increase of the mass activity upon doping are similar for B and P and less prominent for N. On the other hand, OMCs doped with low levels of B and N were found to be selective for O-2 reduction to peroxide, while for P-doped OMCs, the apparent number of electrons consumed per O-2 molecule was up to 3.1. Experimental measurements were complemented by density functional theory (DFT) calculations.",
journal = "Electrocatalysis",
title = "The Effects of a Low-Level Boron, Phosphorus, and Nitrogen Doping on the Oxygen Reduction Activity of Ordered Mesoporous Carbons",
volume = "6",
number = "6",
pages = "498-511",
doi = "10.1007/s12678-015-0271-0"
}

Pašti, I. A., Gavrilov, N. M., Dobrota, A. S., Momčilović, M. Z., Stojmenović, M., Topalov, A., Stanković, D. M., Babić, B. M., Ćirić-Marjanović, G. N.,& Mentus, S. V.. (2015). The Effects of a Low-Level Boron, Phosphorus, and Nitrogen Doping on the Oxygen Reduction Activity of Ordered Mesoporous Carbons. in Electrocatalysis, 6(6), 498-511.
https://doi.org/10.1007/s12678-015-0271-0

Pašti IA, Gavrilov NM, Dobrota AS, Momčilović MZ, Stojmenović M, Topalov A, Stanković DM, Babić BM, Ćirić-Marjanović GN, Mentus SV. The Effects of a Low-Level Boron, Phosphorus, and Nitrogen Doping on the Oxygen Reduction Activity of Ordered Mesoporous Carbons. in Electrocatalysis. 2015;6(6):498-511.
doi:10.1007/s12678-015-0271-0 .

Pašti, Igor A., Gavrilov, Nemanja M., Dobrota, Ana S., Momčilović, Milan Z., Stojmenović, Marija, Topalov, Angel, Stanković, Dalibor M., Babić, Biljana M., Ćirić-Marjanović, Gordana N., Mentus, Slavko V., "The Effects of a Low-Level Boron, Phosphorus, and Nitrogen Doping on the Oxygen Reduction Activity of Ordered Mesoporous Carbons" in Electrocatalysis, 6, no. 6 (2015):498-511,
https://doi.org/10.1007/s12678-015-0271-0 . .

TY  - JOUR
AU  - Bogdanović, Una
AU  - Pašti, Igor A.
AU  - Ćirić-Marjanović, Gordana N.
AU  - Mitrić, Miodrag
AU  - Ahrenkiel, Scott Phillip
AU  - Vodnik, Vesna
PY  - 2015
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/922
AB  - Gold-polyaniline (Au-PANI) nanocomposite was prepared using a simple interfacial polymerization method, performed in an immiscible water/toluene biphasic system using tetrachloroaurate, AuCl4- as an oxidant. The formation of Au+ nanoparticles (AuNPs) or Au-PANI nanocomposite can be controlled to a certain degree by varying the ratio of initial Au+ and aniline concentrations. Under optimal condition (HAuCl4/aniline ratio is 1:2), green dispersion of Au-PANI nanocomposite is produced in aqueous phase, whose morphology, structure and physicochemical properties are investigated in details. The nanocomposite shows granular morphology with mostly rodlike AuNPs embedded in polymer. It was found that polyaniline in the composite is in the conducting emeraldine salt form, containing high amount of Au (28.85 wt %). Furthermore, the electrical conductivity of the nanocomposite was found to be four-fold higher than that of the polymer itself. In addition, the nanocomposite powder, isolated from the as-prepared aqueous dispersion, can later be easily redispersed in water and further used for various applications. Moreover, the obtained Au-PANI nanocomposite showed excellent electrocatalytic performance toward the electrochemical oxygen reduction reaction (ORR), with high ORR onset potential and good selectivity. This makes it a promising candidate for a new class of Pt-free ORR. catalyst.
T2  - ACS Applied Materials and Interfaces
T1  - Interfacial Synthesis of Gold-Polyaniline Nanocomposite and Its Electrocatalytic Application
VL  - 7
IS  - 51
SP  - 28393
EP  - 28403
DO  - 10.1021/acsami.5b09145
ER  - 

@article{
author = "Bogdanović, Una and Pašti, Igor A. and Ćirić-Marjanović, Gordana N. and Mitrić, Miodrag and Ahrenkiel, Scott Phillip and Vodnik, Vesna",
year = "2015",
abstract = "Gold-polyaniline (Au-PANI) nanocomposite was prepared using a simple interfacial polymerization method, performed in an immiscible water/toluene biphasic system using tetrachloroaurate, AuCl4- as an oxidant. The formation of Au+ nanoparticles (AuNPs) or Au-PANI nanocomposite can be controlled to a certain degree by varying the ratio of initial Au+ and aniline concentrations. Under optimal condition (HAuCl4/aniline ratio is 1:2), green dispersion of Au-PANI nanocomposite is produced in aqueous phase, whose morphology, structure and physicochemical properties are investigated in details. The nanocomposite shows granular morphology with mostly rodlike AuNPs embedded in polymer. It was found that polyaniline in the composite is in the conducting emeraldine salt form, containing high amount of Au (28.85 wt %). Furthermore, the electrical conductivity of the nanocomposite was found to be four-fold higher than that of the polymer itself. In addition, the nanocomposite powder, isolated from the as-prepared aqueous dispersion, can later be easily redispersed in water and further used for various applications. Moreover, the obtained Au-PANI nanocomposite showed excellent electrocatalytic performance toward the electrochemical oxygen reduction reaction (ORR), with high ORR onset potential and good selectivity. This makes it a promising candidate for a new class of Pt-free ORR. catalyst.",
journal = "ACS Applied Materials and Interfaces",
title = "Interfacial Synthesis of Gold-Polyaniline Nanocomposite and Its Electrocatalytic Application",
volume = "7",
number = "51",
pages = "28393-28403",
doi = "10.1021/acsami.5b09145"
}

Bogdanović, U., Pašti, I. A., Ćirić-Marjanović, G. N., Mitrić, M., Ahrenkiel, S. P.,& Vodnik, V.. (2015). Interfacial Synthesis of Gold-Polyaniline Nanocomposite and Its Electrocatalytic Application. in ACS Applied Materials and Interfaces, 7(51), 28393-28403.
https://doi.org/10.1021/acsami.5b09145

Bogdanović U, Pašti IA, Ćirić-Marjanović GN, Mitrić M, Ahrenkiel SP, Vodnik V. Interfacial Synthesis of Gold-Polyaniline Nanocomposite and Its Electrocatalytic Application. in ACS Applied Materials and Interfaces. 2015;7(51):28393-28403.
doi:10.1021/acsami.5b09145 .

Bogdanović, Una, Pašti, Igor A., Ćirić-Marjanović, Gordana N., Mitrić, Miodrag, Ahrenkiel, Scott Phillip, Vodnik, Vesna, "Interfacial Synthesis of Gold-Polyaniline Nanocomposite and Its Electrocatalytic Application" in ACS Applied Materials and Interfaces, 7, no. 51 (2015):28393-28403,
https://doi.org/10.1021/acsami.5b09145 . .

TY  - JOUR
AU  - Radoičić, Marija B.
AU  - Milošević, Milica V.
AU  - Miličević, Dejan S.
AU  - Suljovrujić, Edin H.
AU  - Ćirić-Marjanović, Gordana N.
AU  - Radetić, Maja M.
AU  - Šaponjić, Zoran
PY  - 2015
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/756
AB  - Polyester fibers gained significant share from all other man-made fibers, but despite numerous advantages a characteristic static electricity generation is still seeking innovative solutions. In order to improve electrical properties of poly(ethyleneterephthalate) (PET) fabric, coating consisting of polyaniline/TiO2 (PANI/TiO2) nanocomposite was deposited on its surface. Coating was synthesized in acidic medium by the chemical oxidative polymerization of aniline with ammonium peroxydisulfate CAPS) in the presence of colloidal TiO2 nanoparticles (d similar to 4.5 nm) and PET fabric. The morphology, molecular structure and dielectric properties of PANI/TiO2 nanocomposites were studied by scanning electron microscopy (SEM), Raman and dielectric spectroscopies. SEM analysis revealed the formation of non-uniform PANI coating on the reference PET sample. In contrast, uniform PANI/TiO2 coating on the surface of PET fabric was generated when TiO2 nanoparticles were engaged. The existence of conductive emeraldine salt form of PANI and phenazine units was confirmed by Raman spectroscopy. Formation mechanisms of PANI and PANI/TiO2 coatings on PET fabrics were proposed. The presence of TiO2 nanoparticles significantly affected the dielectric properties (permittivity and loss tangent) and AC conductivity of PANI/TiO2 coated PET fabrics. PET fabrics coated by PANI/TiO2 nanocomposite showed up to two orders of magnitude higher conductivity in the measured frequency region compared to PANI coated PET fabric. (C) 2015 Elsevier B.V. All tights reserved.
T2  - Surface and Coatings Technology
T1  - Influence of TiO2 nanoparticles on formation mechanism of PANI/TiO2 nanocomposite coating on PET fabric and its structural and electrical properties
VL  - 278
SP  - 38
EP  - 47
DO  - 10.1016/j.surfcoat.2015.07.070
ER  - 

@article{
author = "Radoičić, Marija B. and Milošević, Milica V. and Miličević, Dejan S. and Suljovrujić, Edin H. and Ćirić-Marjanović, Gordana N. and Radetić, Maja M. and Šaponjić, Zoran",
year = "2015",
abstract = "Polyester fibers gained significant share from all other man-made fibers, but despite numerous advantages a characteristic static electricity generation is still seeking innovative solutions. In order to improve electrical properties of poly(ethyleneterephthalate) (PET) fabric, coating consisting of polyaniline/TiO2 (PANI/TiO2) nanocomposite was deposited on its surface. Coating was synthesized in acidic medium by the chemical oxidative polymerization of aniline with ammonium peroxydisulfate CAPS) in the presence of colloidal TiO2 nanoparticles (d similar to 4.5 nm) and PET fabric. The morphology, molecular structure and dielectric properties of PANI/TiO2 nanocomposites were studied by scanning electron microscopy (SEM), Raman and dielectric spectroscopies. SEM analysis revealed the formation of non-uniform PANI coating on the reference PET sample. In contrast, uniform PANI/TiO2 coating on the surface of PET fabric was generated when TiO2 nanoparticles were engaged. The existence of conductive emeraldine salt form of PANI and phenazine units was confirmed by Raman spectroscopy. Formation mechanisms of PANI and PANI/TiO2 coatings on PET fabrics were proposed. The presence of TiO2 nanoparticles significantly affected the dielectric properties (permittivity and loss tangent) and AC conductivity of PANI/TiO2 coated PET fabrics. PET fabrics coated by PANI/TiO2 nanocomposite showed up to two orders of magnitude higher conductivity in the measured frequency region compared to PANI coated PET fabric. (C) 2015 Elsevier B.V. All tights reserved.",
journal = "Surface and Coatings Technology",
title = "Influence of TiO2 nanoparticles on formation mechanism of PANI/TiO2 nanocomposite coating on PET fabric and its structural and electrical properties",
volume = "278",
pages = "38-47",
doi = "10.1016/j.surfcoat.2015.07.070"
}

Radoičić, M. B., Milošević, M. V., Miličević, D. S., Suljovrujić, E. H., Ćirić-Marjanović, G. N., Radetić, M. M.,& Šaponjić, Z.. (2015). Influence of TiO2 nanoparticles on formation mechanism of PANI/TiO2 nanocomposite coating on PET fabric and its structural and electrical properties. in Surface and Coatings Technology, 278, 38-47.
https://doi.org/10.1016/j.surfcoat.2015.07.070

Radoičić MB, Milošević MV, Miličević DS, Suljovrujić EH, Ćirić-Marjanović GN, Radetić MM, Šaponjić Z. Influence of TiO2 nanoparticles on formation mechanism of PANI/TiO2 nanocomposite coating on PET fabric and its structural and electrical properties. in Surface and Coatings Technology. 2015;278:38-47.
doi:10.1016/j.surfcoat.2015.07.070 .

Radoičić, Marija B., Milošević, Milica V., Miličević, Dejan S., Suljovrujić, Edin H., Ćirić-Marjanović, Gordana N., Radetić, Maja M., Šaponjić, Zoran, "Influence of TiO2 nanoparticles on formation mechanism of PANI/TiO2 nanocomposite coating on PET fabric and its structural and electrical properties" in Surface and Coatings Technology, 278 (2015):38-47,
https://doi.org/10.1016/j.surfcoat.2015.07.070 . .

TY  - JOUR
AU  - Jovanović, Dragana J.
AU  - Dugandžić, Ivan
AU  - Ćirić-Marjanović, Gordana N.
AU  - Radetić, Tamara
AU  - Ahrenkiel, Scott Phillip
AU  - Milošević, Olivera
AU  - Nedeljković, Jovan
AU  - Šaponjić, Zoran
AU  - Mančić, Lidija
PY  - 2015
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/771
AB  - We report on the possibility to build hierarchically organized three-dimensional (3D) titania spherical particles having high surface-to-volume-ratio, by aerosol processing of nanotubular building blocks. Morphology and crystal structure of titania based spherical assemblies, obtained in the temperature range from 150 to 650 degrees C, were characterized by means of scanning and transmission electron microscopy, x-ray powder diffraction and Raman spectroscopy. Initial shape of 1D building units, nanotubes, was well preserved in the spherical assemblies processed at 150 and 450 degrees C. Processing at 650 degrees C resulted in a collapse of the nanotubular building blocks and formation of the assemblies of irregularly shaped TiO2 nanoparticles. Structural analysis revealed several phase transitions in titania spherical assemblies in course with the temperature increase indicating possibility of in-situ phase composition adjustment during aerosol processing. (C) 2015 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
T2  - Ceramics International
T1  - Spherical assemblies of titania nanotubes generated through aerosol processing
VL  - 41
IS  - 10
SP  - 14754
EP  - 14759
DO  - 10.1016/j.ceramint.2015.07.205
ER  - 

@article{
author = "Jovanović, Dragana J. and Dugandžić, Ivan and Ćirić-Marjanović, Gordana N. and Radetić, Tamara and Ahrenkiel, Scott Phillip and Milošević, Olivera and Nedeljković, Jovan and Šaponjić, Zoran and Mančić, Lidija",
year = "2015",
abstract = "We report on the possibility to build hierarchically organized three-dimensional (3D) titania spherical particles having high surface-to-volume-ratio, by aerosol processing of nanotubular building blocks. Morphology and crystal structure of titania based spherical assemblies, obtained in the temperature range from 150 to 650 degrees C, were characterized by means of scanning and transmission electron microscopy, x-ray powder diffraction and Raman spectroscopy. Initial shape of 1D building units, nanotubes, was well preserved in the spherical assemblies processed at 150 and 450 degrees C. Processing at 650 degrees C resulted in a collapse of the nanotubular building blocks and formation of the assemblies of irregularly shaped TiO2 nanoparticles. Structural analysis revealed several phase transitions in titania spherical assemblies in course with the temperature increase indicating possibility of in-situ phase composition adjustment during aerosol processing. (C) 2015 Elsevier Ltd and Techna Group S.r.l. All rights reserved.",
journal = "Ceramics International",
title = "Spherical assemblies of titania nanotubes generated through aerosol processing",
volume = "41",
number = "10",
pages = "14754-14759",
doi = "10.1016/j.ceramint.2015.07.205"
}

Jovanović, D. J., Dugandžić, I., Ćirić-Marjanović, G. N., Radetić, T., Ahrenkiel, S. P., Milošević, O., Nedeljković, J., Šaponjić, Z.,& Mančić, L.. (2015). Spherical assemblies of titania nanotubes generated through aerosol processing. in Ceramics International, 41(10), 14754-14759.
https://doi.org/10.1016/j.ceramint.2015.07.205

Jovanović DJ, Dugandžić I, Ćirić-Marjanović GN, Radetić T, Ahrenkiel SP, Milošević O, Nedeljković J, Šaponjić Z, Mančić L. Spherical assemblies of titania nanotubes generated through aerosol processing. in Ceramics International. 2015;41(10):14754-14759.
doi:10.1016/j.ceramint.2015.07.205 .

Jovanović, Dragana J., Dugandžić, Ivan, Ćirić-Marjanović, Gordana N., Radetić, Tamara, Ahrenkiel, Scott Phillip, Milošević, Olivera, Nedeljković, Jovan, Šaponjić, Zoran, Mančić, Lidija, "Spherical assemblies of titania nanotubes generated through aerosol processing" in Ceramics International, 41, no. 10 (2015):14754-14759,
https://doi.org/10.1016/j.ceramint.2015.07.205 . .

TY  - CONF
AU  - Radoičić, Marija B.
AU  - Šaponjić, Zoran
AU  - Konstantinović, Zorica
AU  - Ćirić-Marjanović, Gordana N.
PY  - 2014
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9232
AB  - Ferromagnetic polyaniline (PANI)/TiO2 nanocomposites were synthesized
by the oxidative polymerization of aniline with ammonium peroxydisulfate
(APS), in the presence of colloidal TiO2 nanoparticles and TiO2 nanotubes,
without added acid. The morphological, magnetic and structural properties
of the PANI/TiO2 nanocomposites were studied by SEM microscopy,
SQUID magnetometer and FTIR spectroscopy. The electrical conductivity
of synthesized nanocomposites was ~10-3 Scm-1. The room temperature
ferromagnetic response significantly depends on shape of TiO2
nanoparticles.
PB  - Society of Physical Chemists of Serbia
C3  - Physical chemistry 2014: 12th International Conference on Fundamental and Applied Aspects of Physical Chemistry
T1  - Ferromagnetic response of nanocomposites based on polyaniline and TiO2 nanocrystals of different shape
VL  - H-13-P
UR  - https://hdl.handle.net/21.15107/rcub_vinar_9232
ER  - 

@conference{
author = "Radoičić, Marija B. and Šaponjić, Zoran and Konstantinović, Zorica and Ćirić-Marjanović, Gordana N.",
year = "2014",
abstract = "Ferromagnetic polyaniline (PANI)/TiO2 nanocomposites were synthesized
by the oxidative polymerization of aniline with ammonium peroxydisulfate
(APS), in the presence of colloidal TiO2 nanoparticles and TiO2 nanotubes,
without added acid. The morphological, magnetic and structural properties
of the PANI/TiO2 nanocomposites were studied by SEM microscopy,
SQUID magnetometer and FTIR spectroscopy. The electrical conductivity
of synthesized nanocomposites was ~10-3 Scm-1. The room temperature
ferromagnetic response significantly depends on shape of TiO2
nanoparticles.",
publisher = "Society of Physical Chemists of Serbia",
journal = "Physical chemistry 2014: 12th International Conference on Fundamental and Applied Aspects of Physical Chemistry",
title = "Ferromagnetic response of nanocomposites based on polyaniline and TiO2 nanocrystals of different shape",
volume = "H-13-P",
url = "https://hdl.handle.net/21.15107/rcub_vinar_9232"
}

Radoičić, M. B., Šaponjić, Z., Konstantinović, Z.,& Ćirić-Marjanović, G. N.. (2014). Ferromagnetic response of nanocomposites based on polyaniline and TiO2 nanocrystals of different shape. in Physical chemistry 2014: 12th International Conference on Fundamental and Applied Aspects of Physical Chemistry
Society of Physical Chemists of Serbia., H-13-P.
https://hdl.handle.net/21.15107/rcub_vinar_9232

Radoičić MB, Šaponjić Z, Konstantinović Z, Ćirić-Marjanović GN. Ferromagnetic response of nanocomposites based on polyaniline and TiO2 nanocrystals of different shape. in Physical chemistry 2014: 12th International Conference on Fundamental and Applied Aspects of Physical Chemistry. 2014;H-13-P.
https://hdl.handle.net/21.15107/rcub_vinar_9232 .

Radoičić, Marija B., Šaponjić, Zoran, Konstantinović, Zorica, Ćirić-Marjanović, Gordana N., "Ferromagnetic response of nanocomposites based on polyaniline and TiO2 nanocrystals of different shape" in Physical chemistry 2014: 12th International Conference on Fundamental and Applied Aspects of Physical Chemistry, H-13-P (2014),
https://hdl.handle.net/21.15107/rcub_vinar_9232 .

TY  - JOUR
AU  - Bogdanović, Una
AU  - Vodnik, Vesna
AU  - Ahrenkiel, Scott Phillip
AU  - Stoiljković, Milovan
AU  - Ćirić-Marjanović, Gordana N.
AU  - Nedeljković, Jovan
PY  - 2014
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/105
AB  - Composites consisting of polyaniline (PANI) and gold nanoparticles (AuNPs) with an average size of 17 and 30 nm were synthesized by an interfacial method performed in an immiscible water/toluene biphasic system. The effect of embedded AuNPs on the morphology, structure and physicochemical properties of Au/PANI nanocomposites was investigated using scanning and transmission electron microscopies, UV-vis, FTIR, Raman and ICP-AES spectroscopies, X-ray diffraction, elemental analysis and conductivity measurements. Microscopy studies indicated nanofibrous morphology for pure PAN! and Au/PANI nanocomposites, while FTIR and Raman spectroscopies were confirmed emeraldine salt form of PANI chains and the presence of phenazine units. Also, Raman spectroscopy measurements revealed an inherent structural inhomogeneity at the macromolecular level that exist in PANI chains in its pure form as well as in Au/PANI nanocomposites. In addition, the increase of the electrical conductivity observed in the nanocomposites was discussed. (C) 2014 Elsevier B.V. All rights reserved.
T2  - Synthetic Metals
T1  - Interfacial synthesis and characterization of gold/polyaniline nanocomposites
VL  - 195
SP  - 122
EP  - 131
DO  - 10.1016/j.synthmet.2014.05.018
ER  - 

@article{
author = "Bogdanović, Una and Vodnik, Vesna and Ahrenkiel, Scott Phillip and Stoiljković, Milovan and Ćirić-Marjanović, Gordana N. and Nedeljković, Jovan",
year = "2014",
abstract = "Composites consisting of polyaniline (PANI) and gold nanoparticles (AuNPs) with an average size of 17 and 30 nm were synthesized by an interfacial method performed in an immiscible water/toluene biphasic system. The effect of embedded AuNPs on the morphology, structure and physicochemical properties of Au/PANI nanocomposites was investigated using scanning and transmission electron microscopies, UV-vis, FTIR, Raman and ICP-AES spectroscopies, X-ray diffraction, elemental analysis and conductivity measurements. Microscopy studies indicated nanofibrous morphology for pure PAN! and Au/PANI nanocomposites, while FTIR and Raman spectroscopies were confirmed emeraldine salt form of PANI chains and the presence of phenazine units. Also, Raman spectroscopy measurements revealed an inherent structural inhomogeneity at the macromolecular level that exist in PANI chains in its pure form as well as in Au/PANI nanocomposites. In addition, the increase of the electrical conductivity observed in the nanocomposites was discussed. (C) 2014 Elsevier B.V. All rights reserved.",
journal = "Synthetic Metals",
title = "Interfacial synthesis and characterization of gold/polyaniline nanocomposites",
volume = "195",
pages = "122-131",
doi = "10.1016/j.synthmet.2014.05.018"
}

Bogdanović, U., Vodnik, V., Ahrenkiel, S. P., Stoiljković, M., Ćirić-Marjanović, G. N.,& Nedeljković, J.. (2014). Interfacial synthesis and characterization of gold/polyaniline nanocomposites. in Synthetic Metals, 195, 122-131.
https://doi.org/10.1016/j.synthmet.2014.05.018

Bogdanović U, Vodnik V, Ahrenkiel SP, Stoiljković M, Ćirić-Marjanović GN, Nedeljković J. Interfacial synthesis and characterization of gold/polyaniline nanocomposites. in Synthetic Metals. 2014;195:122-131.
doi:10.1016/j.synthmet.2014.05.018 .

Bogdanović, Una, Vodnik, Vesna, Ahrenkiel, Scott Phillip, Stoiljković, Milovan, Ćirić-Marjanović, Gordana N., Nedeljković, Jovan, "Interfacial synthesis and characterization of gold/polyaniline nanocomposites" in Synthetic Metals, 195 (2014):122-131,
https://doi.org/10.1016/j.synthmet.2014.05.018 . .

TY  - JOUR
AU  - Radoičić, Marija B.
AU  - Ćirić-Marjanović, Gordana N.
AU  - Šaponjić, Zoran
AU  - Mitrić, Miodrag
AU  - Konstantinović, Zorica
AU  - Stoiljković, Milovan
AU  - Nedeljković, Jovan
PY  - 2013
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/5573
AB  - Nanocomposites consisting of self-assembled polyaniline (PANI) nanostructures and titania nanotubes (TiO2-NT) were synthesized by the oxidative polymerization of aniline with ammonium peroxydisulfate in an aqueous dispersion of TiO2-NT (outer diameter similar to 10 nm), without added acid. The influence of initial mole ratio of aniline to TiO2 (80, 20, and 5) on the morphology, electrical conductivity, molecular structure, crystallinity, and magnetic properties of synthesized PANI/TiO2 nanocomposites was studied. Transmission electron microscopy, Raman spectroscopy, and X-ray powder diffraction proved that the shape and structure of TiO2-NT in the final nanocomposites were preserved. The shape of PANI nanostructures formed in the nanocomposites was influenced by the initial aniline/TiO2-NT mole ratio. Nanotubes and nanorods are predominant PANI nanostructures in the nanocomposite prepared with the highest aniline/TiO2 mol ratio of 80. The decrease of aniline/TiO2 molar ratio induced more pronounced formation of nanorod network. The electrical conductivity of PANI/TiO2 nanocomposites was in the range (1.3-2.4) x 10(-3) S cm(-1). The nanocomposites exhibit weak ferromagnetic behavior. Approximately order of magnitude lower values of coercive field and remanent magnetization were obtained for nanocomposite samples in comparison to pure PANI.
T2  - Journal of Materials Science
T1  - Structural and magnetic properties of nanocomposites based on nanostructured polyaniline and titania nanotubes
VL  - 48
IS  - 17
SP  - 5776
EP  - 5787
DO  - 10.1007/s10853-013-7370-1
ER  - 

@article{
author = "Radoičić, Marija B. and Ćirić-Marjanović, Gordana N. and Šaponjić, Zoran and Mitrić, Miodrag and Konstantinović, Zorica and Stoiljković, Milovan and Nedeljković, Jovan",
year = "2013",
abstract = "Nanocomposites consisting of self-assembled polyaniline (PANI) nanostructures and titania nanotubes (TiO2-NT) were synthesized by the oxidative polymerization of aniline with ammonium peroxydisulfate in an aqueous dispersion of TiO2-NT (outer diameter similar to 10 nm), without added acid. The influence of initial mole ratio of aniline to TiO2 (80, 20, and 5) on the morphology, electrical conductivity, molecular structure, crystallinity, and magnetic properties of synthesized PANI/TiO2 nanocomposites was studied. Transmission electron microscopy, Raman spectroscopy, and X-ray powder diffraction proved that the shape and structure of TiO2-NT in the final nanocomposites were preserved. The shape of PANI nanostructures formed in the nanocomposites was influenced by the initial aniline/TiO2-NT mole ratio. Nanotubes and nanorods are predominant PANI nanostructures in the nanocomposite prepared with the highest aniline/TiO2 mol ratio of 80. The decrease of aniline/TiO2 molar ratio induced more pronounced formation of nanorod network. The electrical conductivity of PANI/TiO2 nanocomposites was in the range (1.3-2.4) x 10(-3) S cm(-1). The nanocomposites exhibit weak ferromagnetic behavior. Approximately order of magnitude lower values of coercive field and remanent magnetization were obtained for nanocomposite samples in comparison to pure PANI.",
journal = "Journal of Materials Science",
title = "Structural and magnetic properties of nanocomposites based on nanostructured polyaniline and titania nanotubes",
volume = "48",
number = "17",
pages = "5776-5787",
doi = "10.1007/s10853-013-7370-1"
}

Radoičić, M. B., Ćirić-Marjanović, G. N., Šaponjić, Z., Mitrić, M., Konstantinović, Z., Stoiljković, M.,& Nedeljković, J.. (2013). Structural and magnetic properties of nanocomposites based on nanostructured polyaniline and titania nanotubes. in Journal of Materials Science, 48(17), 5776-5787.
https://doi.org/10.1007/s10853-013-7370-1

Radoičić MB, Ćirić-Marjanović GN, Šaponjić Z, Mitrić M, Konstantinović Z, Stoiljković M, Nedeljković J. Structural and magnetic properties of nanocomposites based on nanostructured polyaniline and titania nanotubes. in Journal of Materials Science. 2013;48(17):5776-5787.
doi:10.1007/s10853-013-7370-1 .

Radoičić, Marija B., Ćirić-Marjanović, Gordana N., Šaponjić, Zoran, Mitrić, Miodrag, Konstantinović, Zorica, Stoiljković, Milovan, Nedeljković, Jovan, "Structural and magnetic properties of nanocomposites based on nanostructured polyaniline and titania nanotubes" in Journal of Materials Science, 48, no. 17 (2013):5776-5787,
https://doi.org/10.1007/s10853-013-7370-1 . .

TY  - JOUR
AU  - Radoičić, Marija B.
AU  - Šaponjić, Zoran
AU  - Janković, Ivana A.
AU  - Ćirić-Marjanović, Gordana N.
AU  - Ahrenkiel, Scott Phillip
AU  - Čomor, Mirjana
PY  - 2013
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/5418
AB  - Polyaniline/TiO2 nanocomposite powders were successfully synthesized by the oxidative polymerization of aniline with ammonium peroxydisulfate in water without the addition of acid, in the presence of colloidal TiO2 nanoparticles (d similar to 4.5 nm). The morphological, structural, and optical properties of the synthesized nanocomposites prepared at initial TiO2/aniline mole ratios of 50,100, and 150 were studied using transmission electron microscopy, X-ray powder diffraction, Raman and UV-vis spectroscopies. The presence of emeraldine salt and the base form of linear polyaniline (PANI) chains as well as the presence of phenazine units, branched PANI chains, oligomeric structures and short PANI chains in PANI/TiO2 nanocomposites was confirmed by Raman spectroscopy. The anatase crystal structure of TiO2 nanopartides in all the nanocomposites was confirmed by X-ray powder diffraction measurements and by Raman spectroscopy. The photocatalytic activities of PANI/TiO2 nanocomposites were evaluated using the photocatalytic degradation of Rhodamine B and Methylene blue as model compounds and compared with the activity of bare colloidal TiO2 nanoparticles. Enhanced degradation efficiencies in the dyes used were observed. A possible explanation for the PANI/TiO2 photocatalytic activities was suggested, taking into account the influence of the molecular structures of the used dyes and PANI in PANI/TiO2 nanocomposites. (C) 2013 Elsevier B.V. All rights reserved.
T2  - Applied Catalysis. B: Environmental
T1  - Improvements to the photocatalytic efficiency of polyaniline modified TiO2 nanoparticles
VL  - 136
SP  - 133
EP  - 139
DO  - 10.1016/j.apcatb.2013.01.007
ER  - 

@article{
author = "Radoičić, Marija B. and Šaponjić, Zoran and Janković, Ivana A. and Ćirić-Marjanović, Gordana N. and Ahrenkiel, Scott Phillip and Čomor, Mirjana",
year = "2013",
abstract = "Polyaniline/TiO2 nanocomposite powders were successfully synthesized by the oxidative polymerization of aniline with ammonium peroxydisulfate in water without the addition of acid, in the presence of colloidal TiO2 nanoparticles (d similar to 4.5 nm). The morphological, structural, and optical properties of the synthesized nanocomposites prepared at initial TiO2/aniline mole ratios of 50,100, and 150 were studied using transmission electron microscopy, X-ray powder diffraction, Raman and UV-vis spectroscopies. The presence of emeraldine salt and the base form of linear polyaniline (PANI) chains as well as the presence of phenazine units, branched PANI chains, oligomeric structures and short PANI chains in PANI/TiO2 nanocomposites was confirmed by Raman spectroscopy. The anatase crystal structure of TiO2 nanopartides in all the nanocomposites was confirmed by X-ray powder diffraction measurements and by Raman spectroscopy. The photocatalytic activities of PANI/TiO2 nanocomposites were evaluated using the photocatalytic degradation of Rhodamine B and Methylene blue as model compounds and compared with the activity of bare colloidal TiO2 nanoparticles. Enhanced degradation efficiencies in the dyes used were observed. A possible explanation for the PANI/TiO2 photocatalytic activities was suggested, taking into account the influence of the molecular structures of the used dyes and PANI in PANI/TiO2 nanocomposites. (C) 2013 Elsevier B.V. All rights reserved.",
journal = "Applied Catalysis. B: Environmental",
title = "Improvements to the photocatalytic efficiency of polyaniline modified TiO2 nanoparticles",
volume = "136",
pages = "133-139",
doi = "10.1016/j.apcatb.2013.01.007"
}

Radoičić, M. B., Šaponjić, Z., Janković, I. A., Ćirić-Marjanović, G. N., Ahrenkiel, S. P.,& Čomor, M.. (2013). Improvements to the photocatalytic efficiency of polyaniline modified TiO2 nanoparticles. in Applied Catalysis. B: Environmental, 136, 133-139.
https://doi.org/10.1016/j.apcatb.2013.01.007

Radoičić MB, Šaponjić Z, Janković IA, Ćirić-Marjanović GN, Ahrenkiel SP, Čomor M. Improvements to the photocatalytic efficiency of polyaniline modified TiO2 nanoparticles. in Applied Catalysis. B: Environmental. 2013;136:133-139.
doi:10.1016/j.apcatb.2013.01.007 .

Radoičić, Marija B., Šaponjić, Zoran, Janković, Ivana A., Ćirić-Marjanović, Gordana N., Ahrenkiel, Scott Phillip, Čomor, Mirjana, "Improvements to the photocatalytic efficiency of polyaniline modified TiO2 nanoparticles" in Applied Catalysis. B: Environmental, 136 (2013):133-139,
https://doi.org/10.1016/j.apcatb.2013.01.007 . .