Novaković, Tatjana

Link to this page

Authority KeyName Variants
orcid::0000-0002-6407-9833
  • Novaković, Tatjana (11)
  • Novaković, Tatjana (3)
Projects

Author's Bibliography

Electrochemical behavior of different types of alumina

Novaković, Tatjana; Barudžija, Tanja; Čomor, Mirjana; Banković, Predrag T.; Mojović, Zorica

(2021)

TY  - JOUR
AU  - Novaković, Tatjana
AU  - Barudžija, Tanja
AU  - Čomor, Mirjana
AU  - Banković, Predrag T.
AU  - Mojović, Zorica
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9898
AB  - This work presents the investigation of electrochemical properties of three alumina samples with different structure and crystal water content. The samples were characterized by XRD and FTIR-ATR analysis, confirming the presence of trihydrate, monohydrate and anhydrous alumina. The samples were used as modifiers of carbon paste electrodes. Their electrochemical behavior toward ferricyanide/ferrocyanide redox probe was evaluated by electrochemical impedance spectroscopy and cyclic voltammetry. The electrochemical behavior toward ruthenium hexamine redox probe was investigated by cyclic voltammetry. The response toward quinone/hydroquinone redox probe was evaluated in buffered and unbuffered solution by cyclic voltammetry. It was found that the surface chemistry of investigated samples influenced their electrochemical properties.
T2  - Journal of Electroanalytical Chemistry
T1  - Electrochemical behavior of different types of alumina
VL  - 895
SP  - 115542
DO  - 10.1016/j.jelechem.2021.115542
ER  - 
@article{
author = "Novaković, Tatjana and Barudžija, Tanja and Čomor, Mirjana and Banković, Predrag T. and Mojović, Zorica",
year = "2021",
abstract = "This work presents the investigation of electrochemical properties of three alumina samples with different structure and crystal water content. The samples were characterized by XRD and FTIR-ATR analysis, confirming the presence of trihydrate, monohydrate and anhydrous alumina. The samples were used as modifiers of carbon paste electrodes. Their electrochemical behavior toward ferricyanide/ferrocyanide redox probe was evaluated by electrochemical impedance spectroscopy and cyclic voltammetry. The electrochemical behavior toward ruthenium hexamine redox probe was investigated by cyclic voltammetry. The response toward quinone/hydroquinone redox probe was evaluated in buffered and unbuffered solution by cyclic voltammetry. It was found that the surface chemistry of investigated samples influenced their electrochemical properties.",
journal = "Journal of Electroanalytical Chemistry",
title = "Electrochemical behavior of different types of alumina",
volume = "895",
pages = "115542",
doi = "10.1016/j.jelechem.2021.115542"
}
Novaković, T., Barudžija, T., Čomor, M., Banković, P. T.,& Mojović, Z.. (2021). Electrochemical behavior of different types of alumina. in Journal of Electroanalytical Chemistry, 895, 115542.
https://doi.org/10.1016/j.jelechem.2021.115542
Novaković T, Barudžija T, Čomor M, Banković PT, Mojović Z. Electrochemical behavior of different types of alumina. in Journal of Electroanalytical Chemistry. 2021;895:115542.
doi:10.1016/j.jelechem.2021.115542 .
Novaković, Tatjana, Barudžija, Tanja, Čomor, Mirjana, Banković, Predrag T., Mojović, Zorica, "Electrochemical behavior of different types of alumina" in Journal of Electroanalytical Chemistry, 895 (2021):115542,
https://doi.org/10.1016/j.jelechem.2021.115542 . .
2
1

Cobalt-doped alumina catalysts in catalytic oxidation of tartrazine induced by Oxone®

Marinović, Sanja; Mudrinić, Tihana; Dojčinović, Biljana; Barudžija, Tanja; Banković, Predrag; Novaković, Tatjana

(2021)

TY  - JOUR
AU  - Marinović, Sanja
AU  - Mudrinić, Tihana
AU  - Dojčinović, Biljana
AU  - Barudžija, Tanja
AU  - Banković, Predrag
AU  - Novaković, Tatjana
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9944
AB  - Porous cobalt-doped alumina catalysts were synthetized using the sol-gel method. The synthesized materials were calcined at 500 °C, 1000 °C and 1100 °C and denoted as CoA-500, CoA-1000 and CoA-1100, respectively. Catalysts were characterized using XRPD, H2-TPR and low temperature N2 physisorption techniques. Applied techniques showed that the annealing temperature affects the structural and textural properties of the catalysts. The synthesized catalysts were investigated in the degradation of tartrazine in the presence of Oxone®. The influence of the mass of catalyst, reaction time, reaction temperature and initial pH were investigated. The temperature increase was beneficial for the dye degradation rate. CoA-500 was proved to be the most efficient among the investigated catalysts. The reaction followed the pseudo-first order kinetics for all investigated temperatures for all three catalysts. All cobalt-doped alumina catalysts were found to be efficient in the Oxone® induced catalytic degradation of tartrazine with CoA-500 showing the best performance.
T2  - Journal of Environmental Chemical Engineering
T1  - Cobalt-doped alumina catalysts in catalytic oxidation of tartrazine induced by Oxone®
VL  - 9
IS  - 6
SP  - 106348
DO  - 10.1016/j.jece.2021.106348
ER  - 
@article{
author = "Marinović, Sanja and Mudrinić, Tihana and Dojčinović, Biljana and Barudžija, Tanja and Banković, Predrag and Novaković, Tatjana",
year = "2021",
abstract = "Porous cobalt-doped alumina catalysts were synthetized using the sol-gel method. The synthesized materials were calcined at 500 °C, 1000 °C and 1100 °C and denoted as CoA-500, CoA-1000 and CoA-1100, respectively. Catalysts were characterized using XRPD, H2-TPR and low temperature N2 physisorption techniques. Applied techniques showed that the annealing temperature affects the structural and textural properties of the catalysts. The synthesized catalysts were investigated in the degradation of tartrazine in the presence of Oxone®. The influence of the mass of catalyst, reaction time, reaction temperature and initial pH were investigated. The temperature increase was beneficial for the dye degradation rate. CoA-500 was proved to be the most efficient among the investigated catalysts. The reaction followed the pseudo-first order kinetics for all investigated temperatures for all three catalysts. All cobalt-doped alumina catalysts were found to be efficient in the Oxone® induced catalytic degradation of tartrazine with CoA-500 showing the best performance.",
journal = "Journal of Environmental Chemical Engineering",
title = "Cobalt-doped alumina catalysts in catalytic oxidation of tartrazine induced by Oxone®",
volume = "9",
number = "6",
pages = "106348",
doi = "10.1016/j.jece.2021.106348"
}
Marinović, S., Mudrinić, T., Dojčinović, B., Barudžija, T., Banković, P.,& Novaković, T.. (2021). Cobalt-doped alumina catalysts in catalytic oxidation of tartrazine induced by Oxone®. in Journal of Environmental Chemical Engineering, 9(6), 106348.
https://doi.org/10.1016/j.jece.2021.106348
Marinović S, Mudrinić T, Dojčinović B, Barudžija T, Banković P, Novaković T. Cobalt-doped alumina catalysts in catalytic oxidation of tartrazine induced by Oxone®. in Journal of Environmental Chemical Engineering. 2021;9(6):106348.
doi:10.1016/j.jece.2021.106348 .
Marinović, Sanja, Mudrinić, Tihana, Dojčinović, Biljana, Barudžija, Tanja, Banković, Predrag, Novaković, Tatjana, "Cobalt-doped alumina catalysts in catalytic oxidation of tartrazine induced by Oxone®" in Journal of Environmental Chemical Engineering, 9, no. 6 (2021):106348,
https://doi.org/10.1016/j.jece.2021.106348 . .
1

Application of Ni(II)-alumina Composites for Electrocatalytic Reduction of 4-nitrophenol

Novaković, Tatjana; Abazović, Nadica; Savić, Tatjana D.; Čomor, Mirjana; Mojović, Zorica D.

(2020)

TY  - JOUR
AU  - Novaković, Tatjana
AU  - Abazović, Nadica
AU  - Savić, Tatjana D.
AU  - Čomor, Mirjana
AU  - Mojović, Zorica D.
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9789
AB  - Nickel-alumina composites with various content of nickel were synthetized by sol-gel method. The characterization of samples was performed by diffuse reflectance spectroscopy and electrochemical impedance spectroscopy using the Mott-Schottky analysis. Glassy carbon electrode modified by synthesized composites was investigated for reduction of 4-nitrophenol. Modification of glassy carbon electrode with composite sample led to the strong apparent electrocatalysis. Principal component analysis was used to establish correlation between structural, textural and electrochemical data of investigated composites.
T2  - Science of Sintering
T1  - Application of Ni(II)-alumina Composites for Electrocatalytic Reduction of 4-nitrophenol
VL  - 52
IS  - 3
SP  - 359
EP  - 370
DO  - 10.2298/SOS2003359N
ER  - 
@article{
author = "Novaković, Tatjana and Abazović, Nadica and Savić, Tatjana D. and Čomor, Mirjana and Mojović, Zorica D.",
year = "2020",
abstract = "Nickel-alumina composites with various content of nickel were synthetized by sol-gel method. The characterization of samples was performed by diffuse reflectance spectroscopy and electrochemical impedance spectroscopy using the Mott-Schottky analysis. Glassy carbon electrode modified by synthesized composites was investigated for reduction of 4-nitrophenol. Modification of glassy carbon electrode with composite sample led to the strong apparent electrocatalysis. Principal component analysis was used to establish correlation between structural, textural and electrochemical data of investigated composites.",
journal = "Science of Sintering",
title = "Application of Ni(II)-alumina Composites for Electrocatalytic Reduction of 4-nitrophenol",
volume = "52",
number = "3",
pages = "359-370",
doi = "10.2298/SOS2003359N"
}
Novaković, T., Abazović, N., Savić, T. D., Čomor, M.,& Mojović, Z. D.. (2020). Application of Ni(II)-alumina Composites for Electrocatalytic Reduction of 4-nitrophenol. in Science of Sintering, 52(3), 359-370.
https://doi.org/10.2298/SOS2003359N
Novaković T, Abazović N, Savić TD, Čomor M, Mojović ZD. Application of Ni(II)-alumina Composites for Electrocatalytic Reduction of 4-nitrophenol. in Science of Sintering. 2020;52(3):359-370.
doi:10.2298/SOS2003359N .
Novaković, Tatjana, Abazović, Nadica, Savić, Tatjana D., Čomor, Mirjana, Mojović, Zorica D., "Application of Ni(II)-alumina Composites for Electrocatalytic Reduction of 4-nitrophenol" in Science of Sintering, 52, no. 3 (2020):359-370,
https://doi.org/10.2298/SOS2003359N . .
1
1

Effect of Fe3+ ion doping on photocatalytic ability of nanozirconia ceramic to degrade 2, 4, 6- trichlorophenol

Carević, Milica V.; Savić, Tatjana D.; Abazović, Nadica; Mojović, Miloš D.; Novaković, Tatjana ; Čomor, Mirjana

(2020)

TY  - JOUR
AU  - Carević, Milica V.
AU  - Savić, Tatjana D.
AU  - Abazović, Nadica
AU  - Mojović, Miloš D.
AU  - Novaković, Tatjana 
AU  - Čomor, Mirjana
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8807
AB  - Pure and a series of Fe3+ doped zirconia nanopowders were synthesized combining colloidal chemistry and solvothermal method from organometallic precursors in order to correlate doping and properties of zirconia matrix. After annealing of washed nanopowders at 600 °C, detailed characterization was performed using X-ray diffraction, UV/Vis absorption and luminescence, infrared and electron paramagnetic spectroscopy, transmission electron microscopy and BET measurements. Zirconia samples had mixed monoclinic and tetragonal crystalline phase; increasing Fe3+ ions concentration was followed by increasing of tetragonal phase share. In the sample with highest Fe3+ concentration, hematite can be detected. Also, UV/Vis spectrophotometry showed that Fe3+ doping lowers effective band gap of zirconia matrix from 4.5 eV (bulk value) to 2.1 eV for doped/nanocomposite samples. EPR measurements proved presence of dopant and showed that isolated Fe3+ ions in zirconia matrix exist in both crystalline phases; monoclinic and tetragonal (g 4.8 and g 4.27–4.2, respectively) surroundings. Zirconia samples were also successfully used as photocatalysts for photocatalytic degradation of 2, 4, 6, trichlorophenol. © 2019 Elsevier Ltd and Techna Group S.r.l.
T2  - Ceramics International
T1  - Effect of Fe3+ ion doping on photocatalytic ability of nanozirconia ceramic to degrade 2, 4, 6- trichlorophenol
VL  - 46
IS  - 5
SP  - 6820
EP  - 6827
DO  - 10.1016/j.ceramint.2019.11.175
ER  - 
@article{
author = "Carević, Milica V. and Savić, Tatjana D. and Abazović, Nadica and Mojović, Miloš D. and Novaković, Tatjana  and Čomor, Mirjana",
year = "2020",
abstract = "Pure and a series of Fe3+ doped zirconia nanopowders were synthesized combining colloidal chemistry and solvothermal method from organometallic precursors in order to correlate doping and properties of zirconia matrix. After annealing of washed nanopowders at 600 °C, detailed characterization was performed using X-ray diffraction, UV/Vis absorption and luminescence, infrared and electron paramagnetic spectroscopy, transmission electron microscopy and BET measurements. Zirconia samples had mixed monoclinic and tetragonal crystalline phase; increasing Fe3+ ions concentration was followed by increasing of tetragonal phase share. In the sample with highest Fe3+ concentration, hematite can be detected. Also, UV/Vis spectrophotometry showed that Fe3+ doping lowers effective band gap of zirconia matrix from 4.5 eV (bulk value) to 2.1 eV for doped/nanocomposite samples. EPR measurements proved presence of dopant and showed that isolated Fe3+ ions in zirconia matrix exist in both crystalline phases; monoclinic and tetragonal (g 4.8 and g 4.27–4.2, respectively) surroundings. Zirconia samples were also successfully used as photocatalysts for photocatalytic degradation of 2, 4, 6, trichlorophenol. © 2019 Elsevier Ltd and Techna Group S.r.l.",
journal = "Ceramics International",
title = "Effect of Fe3+ ion doping on photocatalytic ability of nanozirconia ceramic to degrade 2, 4, 6- trichlorophenol",
volume = "46",
number = "5",
pages = "6820-6827",
doi = "10.1016/j.ceramint.2019.11.175"
}
Carević, M. V., Savić, T. D., Abazović, N., Mojović, M. D., Novaković, T.,& Čomor, M.. (2020). Effect of Fe3+ ion doping on photocatalytic ability of nanozirconia ceramic to degrade 2, 4, 6- trichlorophenol. in Ceramics International, 46(5), 6820-6827.
https://doi.org/10.1016/j.ceramint.2019.11.175
Carević MV, Savić TD, Abazović N, Mojović MD, Novaković T, Čomor M. Effect of Fe3+ ion doping on photocatalytic ability of nanozirconia ceramic to degrade 2, 4, 6- trichlorophenol. in Ceramics International. 2020;46(5):6820-6827.
doi:10.1016/j.ceramint.2019.11.175 .
Carević, Milica V., Savić, Tatjana D., Abazović, Nadica, Mojović, Miloš D., Novaković, Tatjana , Čomor, Mirjana, "Effect of Fe3+ ion doping on photocatalytic ability of nanozirconia ceramic to degrade 2, 4, 6- trichlorophenol" in Ceramics International, 46, no. 5 (2020):6820-6827,
https://doi.org/10.1016/j.ceramint.2019.11.175 . .
5
4
4

Electrochemical and structural properties of Ni(II)-alumina composites as an annealing temperature function

Mojović, Zorica D.; Novaković, Tatjana ; Mojović, Miloš D.; Barudžija, Tanja; Mitrić, Miodrag

(2019)

TY  - JOUR
AU  - Mojović, Zorica D.
AU  - Novaković, Tatjana 
AU  - Mojović, Miloš D.
AU  - Barudžija, Tanja
AU  - Mitrić, Miodrag
PY  - 2019
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8596
AB  - Alumina powders, pure and doped with nickel, were synthetized by sol-gel method and calcined at 500, 900 and 1100oC in order to obtain mesoporous structures with a high specific surface area, well adapTab. to catalytic application. The characterization of samples was performed by XRD, EPR spectroscopy and electrochemical impedance spectroscopy (EIS). XRD analysis showed that the addition of Ni2+, as well as the annealing temperature, affects the structural properties of the obtained composites. EPR analysis revealed the traces of Fe3+ impurities, the presence of oxy defects in alumina and Ni2+ in tetrahedral position for samples calcined at 1100oC. The impedance of the Nafion/alumina modified GCE depended on combined effect of porous structure and surface properties of alumina samples. The electrochemical behavior of a glassy carbon electrode modified with Ni (II)-doped aluminas was studied in 0.5 M NaOH solution, with and without methanol. The electrochemical activity of nickel-doped alumina composites was dictated by the amount of present NiO impurity.
T2  - Science of Sintering
T1  - Electrochemical and structural properties of Ni(II)-alumina composites as an annealing temperature function
VL  - 51
IS  - 3
SP  - 339
EP  - 351
DO  - 10.2298/SOS1903339M
ER  - 
@article{
author = "Mojović, Zorica D. and Novaković, Tatjana  and Mojović, Miloš D. and Barudžija, Tanja and Mitrić, Miodrag",
year = "2019",
abstract = "Alumina powders, pure and doped with nickel, were synthetized by sol-gel method and calcined at 500, 900 and 1100oC in order to obtain mesoporous structures with a high specific surface area, well adapTab. to catalytic application. The characterization of samples was performed by XRD, EPR spectroscopy and electrochemical impedance spectroscopy (EIS). XRD analysis showed that the addition of Ni2+, as well as the annealing temperature, affects the structural properties of the obtained composites. EPR analysis revealed the traces of Fe3+ impurities, the presence of oxy defects in alumina and Ni2+ in tetrahedral position for samples calcined at 1100oC. The impedance of the Nafion/alumina modified GCE depended on combined effect of porous structure and surface properties of alumina samples. The electrochemical behavior of a glassy carbon electrode modified with Ni (II)-doped aluminas was studied in 0.5 M NaOH solution, with and without methanol. The electrochemical activity of nickel-doped alumina composites was dictated by the amount of present NiO impurity.",
journal = "Science of Sintering",
title = "Electrochemical and structural properties of Ni(II)-alumina composites as an annealing temperature function",
volume = "51",
number = "3",
pages = "339-351",
doi = "10.2298/SOS1903339M"
}
Mojović, Z. D., Novaković, T., Mojović, M. D., Barudžija, T.,& Mitrić, M.. (2019). Electrochemical and structural properties of Ni(II)-alumina composites as an annealing temperature function. in Science of Sintering, 51(3), 339-351.
https://doi.org/10.2298/SOS1903339M
Mojović ZD, Novaković T, Mojović MD, Barudžija T, Mitrić M. Electrochemical and structural properties of Ni(II)-alumina composites as an annealing temperature function. in Science of Sintering. 2019;51(3):339-351.
doi:10.2298/SOS1903339M .
Mojović, Zorica D., Novaković, Tatjana , Mojović, Miloš D., Barudžija, Tanja, Mitrić, Miodrag, "Electrochemical and structural properties of Ni(II)-alumina composites as an annealing temperature function" in Science of Sintering, 51, no. 3 (2019):339-351,
https://doi.org/10.2298/SOS1903339M . .
2
3
3

Binary oxide ceramics for enhanced phenols degradation under simulated Solar light

Carević, Milica V.; Abazović, Nadica; Savić, Tatjana D.; Novaković, Tatjana ; Pjević, Dejan J.; Čomor, Mirjana

(2018)

TY  - JOUR
AU  - Carević, Milica V.
AU  - Abazović, Nadica
AU  - Savić, Tatjana D.
AU  - Novaković, Tatjana 
AU  - Pjević, Dejan J.
AU  - Čomor, Mirjana
PY  - 2018
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1945
AB  - Solvothermal synthesis of ZrO2-TiO2 binary oxides and pure counterparts at 150 degrees C in water/isopropanol media is presented. Titanium (IV) isopropoxide and zirconium (IV) propoxide were used as precursors. XRD and TEM techniques were used for structural and morphological characterization of obtained samples. XPS spectra of mixed oxide samples were compared in order to correlate composition of samples with surface properties and presence of defects. Relative positions of defect states within band-gaps of semiconductors were estimated from UCPL spectra. UV-Vis DRS spectra revealed that both pure oxides experienced red shift of absorption thresholds compared to reference data. Photocatalytic activities of all samples were probed under simulated Solar light on three model compounds: phenol, 4-chlorophenol (4-CP) and 2, 4, 6-trichlorphenol (TCP). Pure TiO2 showed the highest photocatalytic activity in the case of phenol. However, pure ZrO2 and binary oxides showed higher photoactivity in degradation of 4-CP and TCP. The activity of wide band-gap semiconductors under simulated Solar light in photodegradation of phenol and its derivatives is most probably the consequence of formation of charge transfer complexes between pollutant molecules and semiconductors surface.
T2  - Journal of the American Ceramic Society
T1  - Binary oxide ceramics for enhanced phenols degradation under simulated Solar light
VL  - 101
IS  - 4
SP  - 1420
EP  - 1431
DO  - 10.1111/jace.15324
ER  - 
@article{
author = "Carević, Milica V. and Abazović, Nadica and Savić, Tatjana D. and Novaković, Tatjana  and Pjević, Dejan J. and Čomor, Mirjana",
year = "2018",
abstract = "Solvothermal synthesis of ZrO2-TiO2 binary oxides and pure counterparts at 150 degrees C in water/isopropanol media is presented. Titanium (IV) isopropoxide and zirconium (IV) propoxide were used as precursors. XRD and TEM techniques were used for structural and morphological characterization of obtained samples. XPS spectra of mixed oxide samples were compared in order to correlate composition of samples with surface properties and presence of defects. Relative positions of defect states within band-gaps of semiconductors were estimated from UCPL spectra. UV-Vis DRS spectra revealed that both pure oxides experienced red shift of absorption thresholds compared to reference data. Photocatalytic activities of all samples were probed under simulated Solar light on three model compounds: phenol, 4-chlorophenol (4-CP) and 2, 4, 6-trichlorphenol (TCP). Pure TiO2 showed the highest photocatalytic activity in the case of phenol. However, pure ZrO2 and binary oxides showed higher photoactivity in degradation of 4-CP and TCP. The activity of wide band-gap semiconductors under simulated Solar light in photodegradation of phenol and its derivatives is most probably the consequence of formation of charge transfer complexes between pollutant molecules and semiconductors surface.",
journal = "Journal of the American Ceramic Society",
title = "Binary oxide ceramics for enhanced phenols degradation under simulated Solar light",
volume = "101",
number = "4",
pages = "1420-1431",
doi = "10.1111/jace.15324"
}
Carević, M. V., Abazović, N., Savić, T. D., Novaković, T., Pjević, D. J.,& Čomor, M.. (2018). Binary oxide ceramics for enhanced phenols degradation under simulated Solar light. in Journal of the American Ceramic Society, 101(4), 1420-1431.
https://doi.org/10.1111/jace.15324
Carević MV, Abazović N, Savić TD, Novaković T, Pjević DJ, Čomor M. Binary oxide ceramics for enhanced phenols degradation under simulated Solar light. in Journal of the American Ceramic Society. 2018;101(4):1420-1431.
doi:10.1111/jace.15324 .
Carević, Milica V., Abazović, Nadica, Savić, Tatjana D., Novaković, Tatjana , Pjević, Dejan J., Čomor, Mirjana, "Binary oxide ceramics for enhanced phenols degradation under simulated Solar light" in Journal of the American Ceramic Society, 101, no. 4 (2018):1420-1431,
https://doi.org/10.1111/jace.15324 . .
7
7
7

Superior photocatalytic properties of carbonized PANI/TiO2 nanocomposites

Radoičić, Marija B.; Ćirić-Marjanović, Gordana N.; Spasojević, Vuk D.; Ahrenkiel, Scott Phillip; Mitrić, Miodrag; Novaković, Tatjana ; Šaponjić, Zoran

(2017)

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 . .
49
35
46

Zirconium dioxide nanopowders with incorporated Si4+ ions as efficient photocatalyst for degradation of trichlorophenol using simulated solar light.

Carević, Milica V.; Abazović, Nadica; Novaković, Tatjana ; Pavlović, Vladimir B.; Čomor, Mirjana

(2016)

TY  - JOUR
AU  - Carević, Milica V.
AU  - Abazović, Nadica
AU  - Novaković, Tatjana 
AU  - Pavlović, Vladimir B.
AU  - Čomor, Mirjana
PY  - 2016
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1131
AB  - We present a hydrothermal method for synthesis of zirconia nanopowders: pure and with incorporated Si4+ ions. Zirconyl chloride and tetraethyl orthosilicate were used as precursors. As prepared powders were annealed at 600 degrees C and characterized using structural (XRD), morphological (SEM and TEM) and optical techniques (UV/vis DR, FTIR and photoluminescence spectroscopy). Their textural properties (BET method) and photocatalytic activity toward degradation of model compounds (tricholophenol and Rhodamine B) using simmulated solar light were obtained. We showed that by using hydrothermal synthesis method pure monoclinic ZrO2 highly crystalline powder can be obtained. Incorporation of Si4+ ions induced stabilization of tetragonal crystalline phase at room temperature and decreasing of particle sizes. Incorporation of Si4+ ions in zirconia matrix also resulted in increase of specific area of nanopowders. FTIR measurements were used as proof for existence of Zr-O-Si bond. Effective band gap of zirconia powders was reduced from 5 (pure ZrO2) to 3.8 eV for samples with Si4+ ions. All zirconia powders showed significant photocatalytic activity regarding degradation of triclorophenol and no activity regarding RB (Rhodamine B dye). Photocatalytic activity of zirconia was increased by incorporation of Si ions in the host matrix. The source of this observation is discussed correlating all obtained properties of pure and Si-incorporated nanopowders. Optimization of synthesis parameters and composition of zirconia samples obviously can lead to their photocatalytic activity comparable to Degussa TiO2 powder, famous and commercial photocatalyst. (C) 2016 Elsevier B.V. All rights reserved.
T2  - Applied Catalysis. B: Environmental
T1  - Zirconium dioxide nanopowders with incorporated Si4+ ions as efficient photocatalyst for degradation of trichlorophenol using simulated solar light.
VL  - 195
SP  - 112
EP  - 120
DO  - 10.1016/j.apcatb.2016.05.005
ER  - 
@article{
author = "Carević, Milica V. and Abazović, Nadica and Novaković, Tatjana  and Pavlović, Vladimir B. and Čomor, Mirjana",
year = "2016",
abstract = "We present a hydrothermal method for synthesis of zirconia nanopowders: pure and with incorporated Si4+ ions. Zirconyl chloride and tetraethyl orthosilicate were used as precursors. As prepared powders were annealed at 600 degrees C and characterized using structural (XRD), morphological (SEM and TEM) and optical techniques (UV/vis DR, FTIR and photoluminescence spectroscopy). Their textural properties (BET method) and photocatalytic activity toward degradation of model compounds (tricholophenol and Rhodamine B) using simmulated solar light were obtained. We showed that by using hydrothermal synthesis method pure monoclinic ZrO2 highly crystalline powder can be obtained. Incorporation of Si4+ ions induced stabilization of tetragonal crystalline phase at room temperature and decreasing of particle sizes. Incorporation of Si4+ ions in zirconia matrix also resulted in increase of specific area of nanopowders. FTIR measurements were used as proof for existence of Zr-O-Si bond. Effective band gap of zirconia powders was reduced from 5 (pure ZrO2) to 3.8 eV for samples with Si4+ ions. All zirconia powders showed significant photocatalytic activity regarding degradation of triclorophenol and no activity regarding RB (Rhodamine B dye). Photocatalytic activity of zirconia was increased by incorporation of Si ions in the host matrix. The source of this observation is discussed correlating all obtained properties of pure and Si-incorporated nanopowders. Optimization of synthesis parameters and composition of zirconia samples obviously can lead to their photocatalytic activity comparable to Degussa TiO2 powder, famous and commercial photocatalyst. (C) 2016 Elsevier B.V. All rights reserved.",
journal = "Applied Catalysis. B: Environmental",
title = "Zirconium dioxide nanopowders with incorporated Si4+ ions as efficient photocatalyst for degradation of trichlorophenol using simulated solar light.",
volume = "195",
pages = "112-120",
doi = "10.1016/j.apcatb.2016.05.005"
}
Carević, M. V., Abazović, N., Novaković, T., Pavlović, V. B.,& Čomor, M.. (2016). Zirconium dioxide nanopowders with incorporated Si4+ ions as efficient photocatalyst for degradation of trichlorophenol using simulated solar light.. in Applied Catalysis. B: Environmental, 195, 112-120.
https://doi.org/10.1016/j.apcatb.2016.05.005
Carević MV, Abazović N, Novaković T, Pavlović VB, Čomor M. Zirconium dioxide nanopowders with incorporated Si4+ ions as efficient photocatalyst for degradation of trichlorophenol using simulated solar light.. in Applied Catalysis. B: Environmental. 2016;195:112-120.
doi:10.1016/j.apcatb.2016.05.005 .
Carević, Milica V., Abazović, Nadica, Novaković, Tatjana , Pavlović, Vladimir B., Čomor, Mirjana, "Zirconium dioxide nanopowders with incorporated Si4+ ions as efficient photocatalyst for degradation of trichlorophenol using simulated solar light." in Applied Catalysis. B: Environmental, 195 (2016):112-120,
https://doi.org/10.1016/j.apcatb.2016.05.005 . .
1
32
27
29

Structural, optical and photodegradation properties of pure and Fe-doped titania nanoparticles probed using simulated Solar light

Carević, Milica V.; Abazović, Nadica; Savić, Tatjana D.; Novaković, Tatjana ; Mojovic, Milos D.; Čomor, Mirjana

(Elsevier, 2016)

TY  - JOUR
AU  - Carević, Milica V.
AU  - Abazović, Nadica
AU  - Savić, Tatjana D.
AU  - Novaković, Tatjana 
AU  - Mojovic, Milos D.
AU  - Čomor, Mirjana
PY  - 2016
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/823
AB  - We report the successful, low temperature synthesis of pure and Fe-doped titania nanoparticle (NP) powders, using organic Ti- and Fe-precursors. The properties of the synthesized titania based materials were obtained using XRD, UV/vis and EPR spectroscopy and BET measurements. The doping of TiO2 induced a shift in the absorption threshold towards the visible spectral range, compared to pure titania. The process of annealing induced an increase in crystallinity and particle sizes in the obtained materials. The photocatalytic activity, using simulated Solar light (Vitalux lamp), of our samples was checked by following the photodegradation reaction of Rhodamine B and trichlorophenole as model compounds. (C) 2015 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
PB  - Elsevier
T2  - Ceramics International
T1  - Structural, optical and photodegradation properties of pure and Fe-doped titania nanoparticles probed using simulated Solar light
VL  - 42
IS  - 1
SP  - 1521
EP  - 1529
DO  - 10.1016/j.ceramint.2015.09.100
ER  - 
@article{
author = "Carević, Milica V. and Abazović, Nadica and Savić, Tatjana D. and Novaković, Tatjana  and Mojovic, Milos D. and Čomor, Mirjana",
year = "2016",
abstract = "We report the successful, low temperature synthesis of pure and Fe-doped titania nanoparticle (NP) powders, using organic Ti- and Fe-precursors. The properties of the synthesized titania based materials were obtained using XRD, UV/vis and EPR spectroscopy and BET measurements. The doping of TiO2 induced a shift in the absorption threshold towards the visible spectral range, compared to pure titania. The process of annealing induced an increase in crystallinity and particle sizes in the obtained materials. The photocatalytic activity, using simulated Solar light (Vitalux lamp), of our samples was checked by following the photodegradation reaction of Rhodamine B and trichlorophenole as model compounds. (C) 2015 Elsevier Ltd and Techna Group S.r.l. All rights reserved.",
publisher = "Elsevier",
journal = "Ceramics International",
title = "Structural, optical and photodegradation properties of pure and Fe-doped titania nanoparticles probed using simulated Solar light",
volume = "42",
number = "1",
pages = "1521-1529",
doi = "10.1016/j.ceramint.2015.09.100"
}
Carević, M. V., Abazović, N., Savić, T. D., Novaković, T., Mojovic, M. D.,& Čomor, M.. (2016). Structural, optical and photodegradation properties of pure and Fe-doped titania nanoparticles probed using simulated Solar light. in Ceramics International
Elsevier., 42(1), 1521-1529.
https://doi.org/10.1016/j.ceramint.2015.09.100
Carević MV, Abazović N, Savić TD, Novaković T, Mojovic MD, Čomor M. Structural, optical and photodegradation properties of pure and Fe-doped titania nanoparticles probed using simulated Solar light. in Ceramics International. 2016;42(1):1521-1529.
doi:10.1016/j.ceramint.2015.09.100 .
Carević, Milica V., Abazović, Nadica, Savić, Tatjana D., Novaković, Tatjana , Mojovic, Milos D., Čomor, Mirjana, "Structural, optical and photodegradation properties of pure and Fe-doped titania nanoparticles probed using simulated Solar light" in Ceramics International, 42, no. 1 (2016):1521-1529,
https://doi.org/10.1016/j.ceramint.2015.09.100 . .
10
9
10

Study of the effect of Mg(II) addition and the annealing conditions on the structure of mesoporous aluminum oxide using Plackett-Burman design

Novaković, Tatjana ; Rožić, Ljiljana S.; Petrović, Srđan P.; Vuković, Zorica M.; Mitrić, Miodrag

(2015)

TY  - JOUR
AU  - Novaković, Tatjana 
AU  - Rožić, Ljiljana S.
AU  - Petrović, Srđan P.
AU  - Vuković, Zorica M.
AU  - Mitrić, Miodrag
PY  - 2015
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/869
AB  - A statistical design was used to investigate the effect of various processing conditions on the structure of sol-gel derived Mg(II) doped alumina. Six process variables were selected based on the Plackett-Burman design: concentration of magnesium nitrate, time and temperature of alcohol evaporation, temperature and time of annealing and heating rate were changed at two levels. For every set of conditions, samples with different specific surface area and degree of crystallinity were obtained. Analysis of the results showed that the annealing temperature, heating rate and concentration of magnesium nitrate were the main factors affecting the average crystallite size of the predominant alumina phase. In the case of the specific surface area, two of selected six variables had pronounced effects; however, the temperature of annealing was more effective than others. The present results showed that the proposed model that uses crystallite size as a response variable is preferable to other research.
T2  - Journal of the Serbian Chemical Society
T1  - Study of the effect of Mg(II) addition and the annealing conditions on the structure of mesoporous aluminum oxide using Plackett-Burman design
VL  - 80
IS  - 12
SP  - 1529
EP  - 1540
DO  - 10.2298/JSC141113056N
ER  - 
@article{
author = "Novaković, Tatjana  and Rožić, Ljiljana S. and Petrović, Srđan P. and Vuković, Zorica M. and Mitrić, Miodrag",
year = "2015",
abstract = "A statistical design was used to investigate the effect of various processing conditions on the structure of sol-gel derived Mg(II) doped alumina. Six process variables were selected based on the Plackett-Burman design: concentration of magnesium nitrate, time and temperature of alcohol evaporation, temperature and time of annealing and heating rate were changed at two levels. For every set of conditions, samples with different specific surface area and degree of crystallinity were obtained. Analysis of the results showed that the annealing temperature, heating rate and concentration of magnesium nitrate were the main factors affecting the average crystallite size of the predominant alumina phase. In the case of the specific surface area, two of selected six variables had pronounced effects; however, the temperature of annealing was more effective than others. The present results showed that the proposed model that uses crystallite size as a response variable is preferable to other research.",
journal = "Journal of the Serbian Chemical Society",
title = "Study of the effect of Mg(II) addition and the annealing conditions on the structure of mesoporous aluminum oxide using Plackett-Burman design",
volume = "80",
number = "12",
pages = "1529-1540",
doi = "10.2298/JSC141113056N"
}
Novaković, T., Rožić, L. S., Petrović, S. P., Vuković, Z. M.,& Mitrić, M.. (2015). Study of the effect of Mg(II) addition and the annealing conditions on the structure of mesoporous aluminum oxide using Plackett-Burman design. in Journal of the Serbian Chemical Society, 80(12), 1529-1540.
https://doi.org/10.2298/JSC141113056N
Novaković T, Rožić LS, Petrović SP, Vuković ZM, Mitrić M. Study of the effect of Mg(II) addition and the annealing conditions on the structure of mesoporous aluminum oxide using Plackett-Burman design. in Journal of the Serbian Chemical Society. 2015;80(12):1529-1540.
doi:10.2298/JSC141113056N .
Novaković, Tatjana , Rožić, Ljiljana S., Petrović, Srđan P., Vuković, Zorica M., Mitrić, Miodrag, "Study of the effect of Mg(II) addition and the annealing conditions on the structure of mesoporous aluminum oxide using Plackett-Burman design" in Journal of the Serbian Chemical Society, 80, no. 12 (2015):1529-1540,
https://doi.org/10.2298/JSC141113056N . .
3
3
2

A Synergy of ZnO and ZnWO4 in Composite Nanostructures Deduced from Optical Properties and Photocatalysis

Savić, Tatjana D.; Validžić, Ivana Lj.; Novaković, Tatjana ; Vuković, Zorica M.; Čomor, Mirjana

(2013)

TY  - JOUR
AU  - Savić, Tatjana D.
AU  - Validžić, Ivana Lj.
AU  - Novaković, Tatjana 
AU  - Vuković, Zorica M.
AU  - Čomor, Mirjana
PY  - 2013
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/5642
AB  - ZnO/ZnWO4 composite rod-like nanoparticles were synthesized by low-temperature soft solution method at 95 A degrees C with different reaction times (1-120 h), in the presence of non-ionic copolymer surfactant Pluronic F68. Obtained nanoparticles had diameters in the range around 10 nm and length of 30 nm. Optical properties such as reflection and room temperature photoluminescence of obtained samples showed strong dependence on their crystallinity and composition. Photocatalytic activity of ZnO/ZnWO4 nanopowders was checked using photodegradation of selected dyes as model system. Obtained results were correlated with specific surface area, particle sizes, crystallinity and ZnO/ZnWO4 ratio of the samples. As crystallinity of ZnWO4 component in the ZnO/ZnWO4 increase, photocatalytic activity also increases. The main findings can be explained by charge transfer reactions that follow light absorption by ZnO and ZnWO4 in nanocomposite.
T2  - Journal of Cluster Science
T1  - A Synergy of ZnO and ZnWO4 in Composite Nanostructures Deduced from Optical Properties and Photocatalysis
VL  - 24
IS  - 3
SP  - 679
EP  - 688
DO  - 10.1007/s10876-013-0562-7
ER  - 
@article{
author = "Savić, Tatjana D. and Validžić, Ivana Lj. and Novaković, Tatjana  and Vuković, Zorica M. and Čomor, Mirjana",
year = "2013",
abstract = "ZnO/ZnWO4 composite rod-like nanoparticles were synthesized by low-temperature soft solution method at 95 A degrees C with different reaction times (1-120 h), in the presence of non-ionic copolymer surfactant Pluronic F68. Obtained nanoparticles had diameters in the range around 10 nm and length of 30 nm. Optical properties such as reflection and room temperature photoluminescence of obtained samples showed strong dependence on their crystallinity and composition. Photocatalytic activity of ZnO/ZnWO4 nanopowders was checked using photodegradation of selected dyes as model system. Obtained results were correlated with specific surface area, particle sizes, crystallinity and ZnO/ZnWO4 ratio of the samples. As crystallinity of ZnWO4 component in the ZnO/ZnWO4 increase, photocatalytic activity also increases. The main findings can be explained by charge transfer reactions that follow light absorption by ZnO and ZnWO4 in nanocomposite.",
journal = "Journal of Cluster Science",
title = "A Synergy of ZnO and ZnWO4 in Composite Nanostructures Deduced from Optical Properties and Photocatalysis",
volume = "24",
number = "3",
pages = "679-688",
doi = "10.1007/s10876-013-0562-7"
}
Savić, T. D., Validžić, I. Lj., Novaković, T., Vuković, Z. M.,& Čomor, M.. (2013). A Synergy of ZnO and ZnWO4 in Composite Nanostructures Deduced from Optical Properties and Photocatalysis. in Journal of Cluster Science, 24(3), 679-688.
https://doi.org/10.1007/s10876-013-0562-7
Savić TD, Validžić IL, Novaković T, Vuković ZM, Čomor M. A Synergy of ZnO and ZnWO4 in Composite Nanostructures Deduced from Optical Properties and Photocatalysis. in Journal of Cluster Science. 2013;24(3):679-688.
doi:10.1007/s10876-013-0562-7 .
Savić, Tatjana D., Validžić, Ivana Lj., Novaković, Tatjana , Vuković, Zorica M., Čomor, Mirjana, "A Synergy of ZnO and ZnWO4 in Composite Nanostructures Deduced from Optical Properties and Photocatalysis" in Journal of Cluster Science, 24, no. 3 (2013):679-688,
https://doi.org/10.1007/s10876-013-0562-7 . .
9
8
11

Electrochemical Behavior of H3pw12o40/Acid-Activated Bentonite Powders

Mojovic, Zorica; Rozic, Ljiljana; Novaković, Tatjana ; Vuković, Zorica M.; Petrović, Srđan P.; Randelovic, Danijela; Mitrić, Miodrag

(2012)

TY  - JOUR
AU  - Mojovic, Zorica
AU  - Rozic, Ljiljana
AU  - Novaković, Tatjana 
AU  - Vuković, Zorica M.
AU  - Petrović, Srđan P.
AU  - Randelovic, Danijela
AU  - Mitrić, Miodrag
PY  - 2012
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/5084
AB  - Electrochemical behavior of 12-tungstophosphoric acid (HPW)/acid-activated bentonite (AAB) powders with various loadings of HPW was investigated. The physicochemical properties of the prepared powders were examined by X-ray powder diffraction, nitrogen adsorption-desorption isotherms, atomic force microscopy and cyclic voltammetry measurements. The results indicated that the prepared powders are composed mainly of oriented domains of large rock blocks, probably resulting from a preferable deposition of bentonite particles having a face-to-face interaction. The particles had a mainly disordered mesoporous structure with a pore volume that varied according to the pore size in the range of 2-50 nm. In addition, the particles had crystallite size between 4.9 and 9.0 nm. The electrocatalytic activities of prepared HPW/AAB electrodes were studied in the oxidation of NO2- and the results revealed that the electrodes possessed relatively higher nitrite oxidation currents than AAB electrode. The best electroactivity was observed for HPW3/AAB electrode (AAB + + 20 wt % HPW) and the limit of detection (3 sigma) was determined as 8 mu M.
T2  - Chemical Industry and Chemical Engineering Quarterly / CICEQ
T1  - Electrochemical Behavior of H3pw12o40/Acid-Activated Bentonite Powders
VL  - 18
IS  - 2
SP  - 329
EP  - 338
DO  - 10.2298/CICEQ110907009M
ER  - 
@article{
author = "Mojovic, Zorica and Rozic, Ljiljana and Novaković, Tatjana  and Vuković, Zorica M. and Petrović, Srđan P. and Randelovic, Danijela and Mitrić, Miodrag",
year = "2012",
abstract = "Electrochemical behavior of 12-tungstophosphoric acid (HPW)/acid-activated bentonite (AAB) powders with various loadings of HPW was investigated. The physicochemical properties of the prepared powders were examined by X-ray powder diffraction, nitrogen adsorption-desorption isotherms, atomic force microscopy and cyclic voltammetry measurements. The results indicated that the prepared powders are composed mainly of oriented domains of large rock blocks, probably resulting from a preferable deposition of bentonite particles having a face-to-face interaction. The particles had a mainly disordered mesoporous structure with a pore volume that varied according to the pore size in the range of 2-50 nm. In addition, the particles had crystallite size between 4.9 and 9.0 nm. The electrocatalytic activities of prepared HPW/AAB electrodes were studied in the oxidation of NO2- and the results revealed that the electrodes possessed relatively higher nitrite oxidation currents than AAB electrode. The best electroactivity was observed for HPW3/AAB electrode (AAB + + 20 wt % HPW) and the limit of detection (3 sigma) was determined as 8 mu M.",
journal = "Chemical Industry and Chemical Engineering Quarterly / CICEQ",
title = "Electrochemical Behavior of H3pw12o40/Acid-Activated Bentonite Powders",
volume = "18",
number = "2",
pages = "329-338",
doi = "10.2298/CICEQ110907009M"
}
Mojovic, Z., Rozic, L., Novaković, T., Vuković, Z. M., Petrović, S. P., Randelovic, D.,& Mitrić, M.. (2012). Electrochemical Behavior of H3pw12o40/Acid-Activated Bentonite Powders. in Chemical Industry and Chemical Engineering Quarterly / CICEQ, 18(2), 329-338.
https://doi.org/10.2298/CICEQ110907009M
Mojovic Z, Rozic L, Novaković T, Vuković ZM, Petrović SP, Randelovic D, Mitrić M. Electrochemical Behavior of H3pw12o40/Acid-Activated Bentonite Powders. in Chemical Industry and Chemical Engineering Quarterly / CICEQ. 2012;18(2):329-338.
doi:10.2298/CICEQ110907009M .
Mojovic, Zorica, Rozic, Ljiljana, Novaković, Tatjana , Vuković, Zorica M., Petrović, Srđan P., Randelovic, Danijela, Mitrić, Miodrag, "Electrochemical Behavior of H3pw12o40/Acid-Activated Bentonite Powders" in Chemical Industry and Chemical Engineering Quarterly / CICEQ, 18, no. 2 (2012):329-338,
https://doi.org/10.2298/CICEQ110907009M . .
2
1
2

The thermal stability of porous alumina/stainless steel catalyst support obtained by spray pyrolysis

Novaković, Tatjana ; Radić, Nenad; Grbic, Bosko; Dondur, Vera; Mitrić, Miodrag; Randjelovic, Danijela; Stoychev, Dimitar; Stefanov, Plamen

(2008)

TY  - JOUR
AU  - Novaković, Tatjana 
AU  - Radić, Nenad
AU  - Grbic, Bosko
AU  - Dondur, Vera
AU  - Mitrić, Miodrag
AU  - Randjelovic, Danijela
AU  - Stoychev, Dimitar
AU  - Stefanov, Plamen
PY  - 2008
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/3582
AB  - Active porous alumina coatings were obtained by deposition of boehmite sol on stainless steel (SS) substrate by spray pyrolysis method. The temperature and the doping of polyethylene glycol (PEG) and La(3+) in the boehmite sol effects on the textural and structural properties and surface morphology of alumina coatings on stainless steel samples are presented. It was found that the addition of polyethylene glycol combined with La3+ to the boehmite sol before spraying improves the thermal stability of porous alumina coatings. X-ray diffraction patterns of a doped sample, even after 5 h at 1000 degrees C, point out to the presence only of delta-Al(2)O(3), with a S(BET) of 74 m(2)/g. XPS data and SEM photographs of coated samples show that alumina were well deposited on the metallic supports. The absence of any lanthanum compounds indicates very well homogeneous dispersion of La(3+)-ions on the surface of alumina crystallites. AFM images show sphere like alumina grains and agglomerates with surface roughness from 60 to 180 nm, depending on temperature and doping. Surface roughness of doped alumina samples was higher than that of non-doped. It was pointed out that spray pyrolysis method enables preparation of alumina layers with relatively high specific surface area, suitable for applications as catalysts supports. (C) 2008 Elsevier B.V. All rights reserved.
T2  - Applied Surface Science
T1  - The thermal stability of porous alumina/stainless steel catalyst support obtained by spray pyrolysis
VL  - 255
IS  - 5
SP  - 3049
EP  - 3055
DO  - 10.1016/j.apsusc.2008.08.074
ER  - 
@article{
author = "Novaković, Tatjana  and Radić, Nenad and Grbic, Bosko and Dondur, Vera and Mitrić, Miodrag and Randjelovic, Danijela and Stoychev, Dimitar and Stefanov, Plamen",
year = "2008",
abstract = "Active porous alumina coatings were obtained by deposition of boehmite sol on stainless steel (SS) substrate by spray pyrolysis method. The temperature and the doping of polyethylene glycol (PEG) and La(3+) in the boehmite sol effects on the textural and structural properties and surface morphology of alumina coatings on stainless steel samples are presented. It was found that the addition of polyethylene glycol combined with La3+ to the boehmite sol before spraying improves the thermal stability of porous alumina coatings. X-ray diffraction patterns of a doped sample, even after 5 h at 1000 degrees C, point out to the presence only of delta-Al(2)O(3), with a S(BET) of 74 m(2)/g. XPS data and SEM photographs of coated samples show that alumina were well deposited on the metallic supports. The absence of any lanthanum compounds indicates very well homogeneous dispersion of La(3+)-ions on the surface of alumina crystallites. AFM images show sphere like alumina grains and agglomerates with surface roughness from 60 to 180 nm, depending on temperature and doping. Surface roughness of doped alumina samples was higher than that of non-doped. It was pointed out that spray pyrolysis method enables preparation of alumina layers with relatively high specific surface area, suitable for applications as catalysts supports. (C) 2008 Elsevier B.V. All rights reserved.",
journal = "Applied Surface Science",
title = "The thermal stability of porous alumina/stainless steel catalyst support obtained by spray pyrolysis",
volume = "255",
number = "5",
pages = "3049-3055",
doi = "10.1016/j.apsusc.2008.08.074"
}
Novaković, T., Radić, N., Grbic, B., Dondur, V., Mitrić, M., Randjelovic, D., Stoychev, D.,& Stefanov, P.. (2008). The thermal stability of porous alumina/stainless steel catalyst support obtained by spray pyrolysis. in Applied Surface Science, 255(5), 3049-3055.
https://doi.org/10.1016/j.apsusc.2008.08.074
Novaković T, Radić N, Grbic B, Dondur V, Mitrić M, Randjelovic D, Stoychev D, Stefanov P. The thermal stability of porous alumina/stainless steel catalyst support obtained by spray pyrolysis. in Applied Surface Science. 2008;255(5):3049-3055.
doi:10.1016/j.apsusc.2008.08.074 .
Novaković, Tatjana , Radić, Nenad, Grbic, Bosko, Dondur, Vera, Mitrić, Miodrag, Randjelovic, Danijela, Stoychev, Dimitar, Stefanov, Plamen, "The thermal stability of porous alumina/stainless steel catalyst support obtained by spray pyrolysis" in Applied Surface Science, 255, no. 5 (2008):3049-3055,
https://doi.org/10.1016/j.apsusc.2008.08.074 . .
20
16
20

Metal sorption on macroporous poly(GMA-co-EGDMA) modified with ethylene diamine

Nastasović, Aleksandra B.; Jovanovic, S; Dordevic, D; Onjia, Antonije E.; Jakovljević, Dragica; Novaković, Tatjana

(2004)

TY  - JOUR
AU  - Nastasović, Aleksandra B.
AU  - Jovanovic, S
AU  - Dordevic, D
AU  - Onjia, Antonije E.
AU  - Jakovljević, Dragica
AU  - Novaković, Tatjana 
PY  - 2004
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/2712
AB  - Two samples of macroporous crosslinked poly(glycidyl methacrylate-co-ethylene glycol dimethacrylate), poly(GMA-co-EGDMA), with different porosity parameters were synthesized by suspension copolymerization and modified by ring-opening reaction of the pendant epoxy groups with ethylene diamine (EDA). The samples were characterized by mercury porosimetry, FT-IR spectroscopy and elemental analysis. The sorption rate of the modified copolymer, poly(GMA-co-EGDMA)-en for Cu(II) ions determined under non-competitive conditions was relatively rapid, i.e. the maximum capacity was reached within 30 min. Batch sorption capacities for Cu(II), Fe(II), Mn(II), Cd(II), Zn(II), Pb(II), Cr(III) and Pt(IV) ions were determined under non-competitive conditions in the pH range 1.25-5.5 at room temperature. The maximum sorption capacities of poly(GMA-co-EGDMA)-en under non-competitive conditions were 1.30 mmol/g for Pt(IV) at pH 5.5, 1.10 mmol/g for Cu(II) at pH 5.5, 1.06 mmol/g for Pb(II) at pH 1.25 and 0.67 mmol/g for Cd(II) ions at pH 5.5. The selectivity of poly(GMA-co-EGDMA)-en towards Cu(II), Co(II), Ni(II), Pb(II) and Pt(IV) ions was investigated under competitive conditions. Poly(GMA-co-EGDMA)-en showed high selectivity for Pt(IV) over Cu(II), Co(II), Ni(II) and Pb(II) ions at pH 2.1. At pH 5.5, the metal sorption capacities of poly(GMA-co-EGDMA)-en decreased in the order: Cu(II) GT Co(II) GT Pt(IV) approximate to Ni(II) GT Pb(II). Regeneration of the Cu(II), Ni(H) and Pb(II) loaded poly(GMA-co-EGDMA)-en with 2 M HIS04 showed that the polymer can be reused in several sorption/desorption cycles. (C) 2003 Elsevier B.V. All rights reserved.
T2  - Reactive and Functional Polymers
T1  - Metal sorption on macroporous poly(GMA-co-EGDMA) modified with ethylene diamine
VL  - 58
IS  - 2
SP  - 139
EP  - 147
DO  - 10.1016/j.reactfunctpolym.2003.11.015
ER  - 
@article{
author = "Nastasović, Aleksandra B. and Jovanovic, S and Dordevic, D and Onjia, Antonije E. and Jakovljević, Dragica and Novaković, Tatjana ",
year = "2004",
abstract = "Two samples of macroporous crosslinked poly(glycidyl methacrylate-co-ethylene glycol dimethacrylate), poly(GMA-co-EGDMA), with different porosity parameters were synthesized by suspension copolymerization and modified by ring-opening reaction of the pendant epoxy groups with ethylene diamine (EDA). The samples were characterized by mercury porosimetry, FT-IR spectroscopy and elemental analysis. The sorption rate of the modified copolymer, poly(GMA-co-EGDMA)-en for Cu(II) ions determined under non-competitive conditions was relatively rapid, i.e. the maximum capacity was reached within 30 min. Batch sorption capacities for Cu(II), Fe(II), Mn(II), Cd(II), Zn(II), Pb(II), Cr(III) and Pt(IV) ions were determined under non-competitive conditions in the pH range 1.25-5.5 at room temperature. The maximum sorption capacities of poly(GMA-co-EGDMA)-en under non-competitive conditions were 1.30 mmol/g for Pt(IV) at pH 5.5, 1.10 mmol/g for Cu(II) at pH 5.5, 1.06 mmol/g for Pb(II) at pH 1.25 and 0.67 mmol/g for Cd(II) ions at pH 5.5. The selectivity of poly(GMA-co-EGDMA)-en towards Cu(II), Co(II), Ni(II), Pb(II) and Pt(IV) ions was investigated under competitive conditions. Poly(GMA-co-EGDMA)-en showed high selectivity for Pt(IV) over Cu(II), Co(II), Ni(II) and Pb(II) ions at pH 2.1. At pH 5.5, the metal sorption capacities of poly(GMA-co-EGDMA)-en decreased in the order: Cu(II) GT Co(II) GT Pt(IV) approximate to Ni(II) GT Pb(II). Regeneration of the Cu(II), Ni(H) and Pb(II) loaded poly(GMA-co-EGDMA)-en with 2 M HIS04 showed that the polymer can be reused in several sorption/desorption cycles. (C) 2003 Elsevier B.V. All rights reserved.",
journal = "Reactive and Functional Polymers",
title = "Metal sorption on macroporous poly(GMA-co-EGDMA) modified with ethylene diamine",
volume = "58",
number = "2",
pages = "139-147",
doi = "10.1016/j.reactfunctpolym.2003.11.015"
}
Nastasović, A. B., Jovanovic, S., Dordevic, D., Onjia, A. E., Jakovljević, D.,& Novaković, T.. (2004). Metal sorption on macroporous poly(GMA-co-EGDMA) modified with ethylene diamine. in Reactive and Functional Polymers, 58(2), 139-147.
https://doi.org/10.1016/j.reactfunctpolym.2003.11.015
Nastasović AB, Jovanovic S, Dordevic D, Onjia AE, Jakovljević D, Novaković T. Metal sorption on macroporous poly(GMA-co-EGDMA) modified with ethylene diamine. in Reactive and Functional Polymers. 2004;58(2):139-147.
doi:10.1016/j.reactfunctpolym.2003.11.015 .
Nastasović, Aleksandra B., Jovanovic, S, Dordevic, D, Onjia, Antonije E., Jakovljević, Dragica, Novaković, Tatjana , "Metal sorption on macroporous poly(GMA-co-EGDMA) modified with ethylene diamine" in Reactive and Functional Polymers, 58, no. 2 (2004):139-147,
https://doi.org/10.1016/j.reactfunctpolym.2003.11.015 . .
90
92
97