TY  - JOUR
AU  - Knežević, Sanja
AU  - Ivanović, Marija
AU  - Stanković, Dalibor
AU  - Kisić, Danilo
AU  - Nenadović, Snežana
AU  - Potočnik, Jelena
AU  - Nenadović, Miloš
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11074
AB  - The following investigation presents the thermal treatment of geopolymer at 300 °C, 600 °C and 900 °C. We investigated what happens to the geopolymer base when incorporated with 1% and 5% of neodymium in the form Nd2O3. A total of six samples were synthesized. Geopolymer 1 contained 1% and geopolymer 2 contained 5% Nd2O3, and these samples were treated at 300 °C; then, samples geopolymer 3 and geopolymer 4 also had the same percentage composition of Nd2O3 and were treated at 600 °C, while samples geopolymer 5 and geopolymer 6were treated at 900 °C. Physical and chemical changes in the aluminosilicate geopolymer matrix were monitored. The incorporation of rare earths into the polymer network of aluminosilicates has been proven to disrupt the basic structure of geopolymers; however, with increased temperatures, these materials show even more unusual properties. Diffuse reflectance infrared Fourier transform (DRIFT) analysis showed that the intensity of the vibrational band decreases with the increase in temperature during thermal treatment, suggesting alterations in the chemical structure of the geopolymers. Transmission electron microscopy (TEM) analysis showed that the diameter of the nanoparticles containing Al2O3 is in the range 5–10 nm, while larger crystallites range from 30 to 80 nm. Scanning electron microscopy (SEM) analysis revealed that the temperature of the thermal treatment increases to 300 °C and 600 °C; the porosity of geopolymer increases in the form of the appearance of large pores and cracks in material. X-ray photoelectron spectroscopy (XPS) analysis was used to investigate the surface chemistry of geopolymers, including the chemical composition of the surface, the oxidation state of the elements, and the presence of functional groups. The UV/Vis spectra of the synthesized geopolymers doped with Nd3+ show interesting optical properties at 900 °C; the geopolymer matrix completely disintegrates and an amorphous phase with a rare-earth precipitate appears.
T2  - Nanomaterials
T1  - Microstructural Analysis of Thermally Treated Geopolymer Incorporated with Neodymium
VL  - 13
IS  - 10
SP  - 1663
DO  - 10.3390/nano13101663
ER  - 

@article{
author = "Knežević, Sanja and Ivanović, Marija and Stanković, Dalibor and Kisić, Danilo and Nenadović, Snežana and Potočnik, Jelena and Nenadović, Miloš",
year = "2023",
abstract = "The following investigation presents the thermal treatment of geopolymer at 300 °C, 600 °C and 900 °C. We investigated what happens to the geopolymer base when incorporated with 1% and 5% of neodymium in the form Nd2O3. A total of six samples were synthesized. Geopolymer 1 contained 1% and geopolymer 2 contained 5% Nd2O3, and these samples were treated at 300 °C; then, samples geopolymer 3 and geopolymer 4 also had the same percentage composition of Nd2O3 and were treated at 600 °C, while samples geopolymer 5 and geopolymer 6were treated at 900 °C. Physical and chemical changes in the aluminosilicate geopolymer matrix were monitored. The incorporation of rare earths into the polymer network of aluminosilicates has been proven to disrupt the basic structure of geopolymers; however, with increased temperatures, these materials show even more unusual properties. Diffuse reflectance infrared Fourier transform (DRIFT) analysis showed that the intensity of the vibrational band decreases with the increase in temperature during thermal treatment, suggesting alterations in the chemical structure of the geopolymers. Transmission electron microscopy (TEM) analysis showed that the diameter of the nanoparticles containing Al2O3 is in the range 5–10 nm, while larger crystallites range from 30 to 80 nm. Scanning electron microscopy (SEM) analysis revealed that the temperature of the thermal treatment increases to 300 °C and 600 °C; the porosity of geopolymer increases in the form of the appearance of large pores and cracks in material. X-ray photoelectron spectroscopy (XPS) analysis was used to investigate the surface chemistry of geopolymers, including the chemical composition of the surface, the oxidation state of the elements, and the presence of functional groups. The UV/Vis spectra of the synthesized geopolymers doped with Nd3+ show interesting optical properties at 900 °C; the geopolymer matrix completely disintegrates and an amorphous phase with a rare-earth precipitate appears.",
journal = "Nanomaterials",
title = "Microstructural Analysis of Thermally Treated Geopolymer Incorporated with Neodymium",
volume = "13",
number = "10",
pages = "1663",
doi = "10.3390/nano13101663"
}

Knežević, S., Ivanović, M., Stanković, D., Kisić, D., Nenadović, S., Potočnik, J.,& Nenadović, M.. (2023). Microstructural Analysis of Thermally Treated Geopolymer Incorporated with Neodymium. in Nanomaterials, 13(10), 1663.
https://doi.org/10.3390/nano13101663

Knežević S, Ivanović M, Stanković D, Kisić D, Nenadović S, Potočnik J, Nenadović M. Microstructural Analysis of Thermally Treated Geopolymer Incorporated with Neodymium. in Nanomaterials. 2023;13(10):1663.
doi:10.3390/nano13101663 .

Knežević, Sanja, Ivanović, Marija, Stanković, Dalibor, Kisić, Danilo, Nenadović, Snežana, Potočnik, Jelena, Nenadović, Miloš, "Microstructural Analysis of Thermally Treated Geopolymer Incorporated with Neodymium" in Nanomaterials, 13, no. 10 (2023):1663,
https://doi.org/10.3390/nano13101663 . .

TY  - JOUR
AU  - Zagorac, Jelena
AU  - Schön, Johann Christian
AU  - Matović, Branko
AU  - Pejić, Milan
AU  - Prekajski-Đorđević, Marija D.
AU  - Zagorac, Dejan
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11073
AB  - Oxynitrides of cerium are expected to have many useful properties but have not been synthesized so far. We identified possible modifications of a not-yet-synthesized Ce3O3N compound, combining global search (GS) and data mining (DM) methods. Employing empirical potentials, structure candidates were obtained via global optimization on the energy landscape of Ce3O3N for different pressure values. Furthermore, additional feasible structure candidates were found using data mining of the ICSD database. The most promising structure candidates obtained were locally optimized at the ab initio level, and their E(V) curves were computed. The structure lowest in total energy, Ce3O3N-DM1, was found via local optimization starting from a data mining candidate and should be thermodynamically metastable up to high pressures.
T2  - Crystals
T1  - Computational Discovery of New Feasible Crystal Structures in Ce3O3N
VL  - 13
IS  - 5
SP  - 774
DO  - 10.3390/cryst13050774
ER  - 

@article{
author = "Zagorac, Jelena and Schön, Johann Christian and Matović, Branko and Pejić, Milan and Prekajski-Đorđević, Marija D. and Zagorac, Dejan",
year = "2023",
abstract = "Oxynitrides of cerium are expected to have many useful properties but have not been synthesized so far. We identified possible modifications of a not-yet-synthesized Ce3O3N compound, combining global search (GS) and data mining (DM) methods. Employing empirical potentials, structure candidates were obtained via global optimization on the energy landscape of Ce3O3N for different pressure values. Furthermore, additional feasible structure candidates were found using data mining of the ICSD database. The most promising structure candidates obtained were locally optimized at the ab initio level, and their E(V) curves were computed. The structure lowest in total energy, Ce3O3N-DM1, was found via local optimization starting from a data mining candidate and should be thermodynamically metastable up to high pressures.",
journal = "Crystals",
title = "Computational Discovery of New Feasible Crystal Structures in Ce3O3N",
volume = "13",
number = "5",
pages = "774",
doi = "10.3390/cryst13050774"
}

Zagorac, J., Schön, J. C., Matović, B., Pejić, M., Prekajski-Đorđević, M. D.,& Zagorac, D.. (2023). Computational Discovery of New Feasible Crystal Structures in Ce3O3N. in Crystals, 13(5), 774.
https://doi.org/10.3390/cryst13050774

Zagorac J, Schön JC, Matović B, Pejić M, Prekajski-Đorđević MD, Zagorac D. Computational Discovery of New Feasible Crystal Structures in Ce3O3N. in Crystals. 2023;13(5):774.
doi:10.3390/cryst13050774 .

Zagorac, Jelena, Schön, Johann Christian, Matović, Branko, Pejić, Milan, Prekajski-Đorđević, Marija D., Zagorac, Dejan, "Computational Discovery of New Feasible Crystal Structures in Ce3O3N" in Crystals, 13, no. 5 (2023):774,
https://doi.org/10.3390/cryst13050774 . .

TY  - JOUR
AU  - Rajačić, Milica
AU  - Todorović, Dragana
AU  - Andrić, Velibor
AU  - Nikolić, Jelena K.
AU  - Janković, Marija M.
AU  - Pantelić, Gordana K.
AU  - Vukanac, Ivana
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11065
AB  - In accordance with ISO/IEC 17025:2017, the testing laboratory needs to verify its ability to properly perform methods. For radiological testing, the sampling does not affect the results directly, but it has to ensure that sample adequately represents the tested material. To verify the procedure, a sampling of red mud and bauxite ore was conducted. All samples were measured in identical geometry by HPGe spectrometer. The counting rates per unit mass in the recorded spectra were compared. For each measurement series, the mean and standard deviations of respected peaks were calculated, as well as average and standard deviation of all series. The obtained results of each individual series were considered satisfactory, i.e. sampling procedure ensures the representativeness of the bulk material, if it is within ± two standard deviations of the average of the mean values.
T2  - Radiation Protection Dosimetry
T1  - Verification of the sampling procedure for radioactivity analysis of waste and industrial material
VL  - 199
IS  - 8-9
SP  - 941
EP  - 946
DO  - 10.1093/rpd/ncad095
ER  - 

@article{
author = "Rajačić, Milica and Todorović, Dragana and Andrić, Velibor and Nikolić, Jelena K. and Janković, Marija M. and Pantelić, Gordana K. and Vukanac, Ivana",
year = "2023",
abstract = "In accordance with ISO/IEC 17025:2017, the testing laboratory needs to verify its ability to properly perform methods. For radiological testing, the sampling does not affect the results directly, but it has to ensure that sample adequately represents the tested material. To verify the procedure, a sampling of red mud and bauxite ore was conducted. All samples were measured in identical geometry by HPGe spectrometer. The counting rates per unit mass in the recorded spectra were compared. For each measurement series, the mean and standard deviations of respected peaks were calculated, as well as average and standard deviation of all series. The obtained results of each individual series were considered satisfactory, i.e. sampling procedure ensures the representativeness of the bulk material, if it is within ± two standard deviations of the average of the mean values.",
journal = "Radiation Protection Dosimetry",
title = "Verification of the sampling procedure for radioactivity analysis of waste and industrial material",
volume = "199",
number = "8-9",
pages = "941-946",
doi = "10.1093/rpd/ncad095"
}

Rajačić, M., Todorović, D., Andrić, V., Nikolić, J. K., Janković, M. M., Pantelić, G. K.,& Vukanac, I.. (2023). Verification of the sampling procedure for radioactivity analysis of waste and industrial material. in Radiation Protection Dosimetry, 199(8-9), 941-946.
https://doi.org/10.1093/rpd/ncad095

Rajačić M, Todorović D, Andrić V, Nikolić JK, Janković MM, Pantelić GK, Vukanac I. Verification of the sampling procedure for radioactivity analysis of waste and industrial material. in Radiation Protection Dosimetry. 2023;199(8-9):941-946.
doi:10.1093/rpd/ncad095 .

Rajačić, Milica, Todorović, Dragana, Andrić, Velibor, Nikolić, Jelena K., Janković, Marija M., Pantelić, Gordana K., Vukanac, Ivana, "Verification of the sampling procedure for radioactivity analysis of waste and industrial material" in Radiation Protection Dosimetry, 199, no. 8-9 (2023):941-946,
https://doi.org/10.1093/rpd/ncad095 . .

TY  - JOUR
AU  - Suljovrujić, Edin H.
AU  - Krstić, Milena P.
AU  - Rogić Miladinović, Zorana
AU  - Petrović, Silvana D.
AU  - Leskovac, Andreja
AU  - Stamboliev, Georgi
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11063
AB  - Hydrogels with oligo(ethylene glycol) (OEG), oligo(propylene glycol) (OPG), and for the first time with combined OEG/OPG pendant chains within the methacrylate (MA) network, were synthesized and the swelling behavior, thermal properties, microstructure, and genotoxicity were investigated. Prior to hydrogel fabrication, an optimized method was developed for oligo(propylene glycol) methacrylate (OPGMA), i.e., oligomer with an LCST below a temperature at which synthesis occurs, indicating that proper preparation and tuning of reaction conditions were required. PEG6MA and PPG5MA homopolymers, as well as P(EG6/PG5)MA copolymer hydrogel, were produced by gamma radiation-induced polymerization and crosslinking of OEG and OPG monomers from the monomer-solvent mixture by using different water/ethanol composition as a solvent and by exposing the reaction mixture to various radiation doses. The combination of OEG and OPG pendant chains within the same network was advantageous in that it allowed an easy tuning of the phase transition temperature. Thus, the volume phase transition (VPT) at temperatures above 70 °C observed in the case of PEG6MA, and in the case of PPG5MA at temperatures below 15 °C, could easily be tuned close to physiological temperatures for P(EG6/PG5)MA hydrogel. Finally, all obtained thermoresponsive hydrogels showed non-genotoxic and non-cytotoxic properties, which indicate promising potential for biomedical applications.
T2  - Reactive and Functional Polymers
T1  - Optimization of thermoresponsive hydrogels based on oligomers with lower critical solution temperature (LCST) far below/above physiological temperatures for biomedical applications
VL  - 189
SP  - 105612
DO  - 10.1016/j.reactfunctpolym.2023.105612
ER  - 

@article{
author = "Suljovrujić, Edin H. and Krstić, Milena P. and Rogić Miladinović, Zorana and Petrović, Silvana D. and Leskovac, Andreja and Stamboliev, Georgi",
year = "2023",
abstract = "Hydrogels with oligo(ethylene glycol) (OEG), oligo(propylene glycol) (OPG), and for the first time with combined OEG/OPG pendant chains within the methacrylate (MA) network, were synthesized and the swelling behavior, thermal properties, microstructure, and genotoxicity were investigated. Prior to hydrogel fabrication, an optimized method was developed for oligo(propylene glycol) methacrylate (OPGMA), i.e., oligomer with an LCST below a temperature at which synthesis occurs, indicating that proper preparation and tuning of reaction conditions were required. PEG6MA and PPG5MA homopolymers, as well as P(EG6/PG5)MA copolymer hydrogel, were produced by gamma radiation-induced polymerization and crosslinking of OEG and OPG monomers from the monomer-solvent mixture by using different water/ethanol composition as a solvent and by exposing the reaction mixture to various radiation doses. The combination of OEG and OPG pendant chains within the same network was advantageous in that it allowed an easy tuning of the phase transition temperature. Thus, the volume phase transition (VPT) at temperatures above 70 °C observed in the case of PEG6MA, and in the case of PPG5MA at temperatures below 15 °C, could easily be tuned close to physiological temperatures for P(EG6/PG5)MA hydrogel. Finally, all obtained thermoresponsive hydrogels showed non-genotoxic and non-cytotoxic properties, which indicate promising potential for biomedical applications.",
journal = "Reactive and Functional Polymers",
title = "Optimization of thermoresponsive hydrogels based on oligomers with lower critical solution temperature (LCST) far below/above physiological temperatures for biomedical applications",
volume = "189",
pages = "105612",
doi = "10.1016/j.reactfunctpolym.2023.105612"
}

Suljovrujić, E. H., Krstić, M. P., Rogić Miladinović, Z., Petrović, S. D., Leskovac, A.,& Stamboliev, G.. (2023). Optimization of thermoresponsive hydrogels based on oligomers with lower critical solution temperature (LCST) far below/above physiological temperatures for biomedical applications. in Reactive and Functional Polymers, 189, 105612.
https://doi.org/10.1016/j.reactfunctpolym.2023.105612

Suljovrujić EH, Krstić MP, Rogić Miladinović Z, Petrović SD, Leskovac A, Stamboliev G. Optimization of thermoresponsive hydrogels based on oligomers with lower critical solution temperature (LCST) far below/above physiological temperatures for biomedical applications. in Reactive and Functional Polymers. 2023;189:105612.
doi:10.1016/j.reactfunctpolym.2023.105612 .

Suljovrujić, Edin H., Krstić, Milena P., Rogić Miladinović, Zorana, Petrović, Silvana D., Leskovac, Andreja, Stamboliev, Georgi, "Optimization of thermoresponsive hydrogels based on oligomers with lower critical solution temperature (LCST) far below/above physiological temperatures for biomedical applications" in Reactive and Functional Polymers, 189 (2023):105612,
https://doi.org/10.1016/j.reactfunctpolym.2023.105612 . .

TY  - JOUR
AU  - Batalović, Katarina
AU  - Radaković, Jana
AU  - Kuzmanović, Bojana
AU  - Medić-Ilić, Mirjana
AU  - Paskaš Mamula, Bojana
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11062
AB  - The development of novel materials for hydrogen storage and conversion applications is expected to facilitate the transition to clean energy. In particular, near-ambient hydrogen storage, thermal energy storage, and lithium conversion electrodes are selected in this study as the applications for which the development of novel Mg-containing materials is of great importance. We utilize a machine learning model, based on the graph neural network, developed for predicting hydride formation enthalpy in intermetallic compounds, to perform high-throughput screening based on the atomic composition and crystal structure of the starting intermetallic compounds. Trends and structure-property relations are discussed, as well as the possibilities for tailoring the stability of Mg-containing hydrides by alloying. For 636 compounds identified as stable by DFT calculations, we predict hydride formation enthalpy and equilibrium potential of metal hydride conversion electrode for Li-ion batteries. Based on the predicted enthalpy of hydride formation, 32 intermetallics are identified as suitable for near-ambient hydrogen storage applications. Among them, MgBe13, seen as a promising material to achieve a high gravimetric density of hydrogen, is additionally studied using DFT. Further investigation of the Na-Mg-Al alloys is proposed as a good route in the search for new thermal energy storage materials. Binary Mg-containing intermetallics are discussed as conversion-type negative electrodes in Li-ion batteries.
T2  - Journal of Energy Storage
T1  - Machine learning-based high-throughput screening of Mg-containing alloys for hydrogen storage and energy conversion applications
VL  - 68
SP  - 107720
DO  - 10.1016/j.est.2023.107720
ER  - 

@article{
author = "Batalović, Katarina and Radaković, Jana and Kuzmanović, Bojana and Medić-Ilić, Mirjana and Paskaš Mamula, Bojana",
year = "2023",
abstract = "The development of novel materials for hydrogen storage and conversion applications is expected to facilitate the transition to clean energy. In particular, near-ambient hydrogen storage, thermal energy storage, and lithium conversion electrodes are selected in this study as the applications for which the development of novel Mg-containing materials is of great importance. We utilize a machine learning model, based on the graph neural network, developed for predicting hydride formation enthalpy in intermetallic compounds, to perform high-throughput screening based on the atomic composition and crystal structure of the starting intermetallic compounds. Trends and structure-property relations are discussed, as well as the possibilities for tailoring the stability of Mg-containing hydrides by alloying. For 636 compounds identified as stable by DFT calculations, we predict hydride formation enthalpy and equilibrium potential of metal hydride conversion electrode for Li-ion batteries. Based on the predicted enthalpy of hydride formation, 32 intermetallics are identified as suitable for near-ambient hydrogen storage applications. Among them, MgBe13, seen as a promising material to achieve a high gravimetric density of hydrogen, is additionally studied using DFT. Further investigation of the Na-Mg-Al alloys is proposed as a good route in the search for new thermal energy storage materials. Binary Mg-containing intermetallics are discussed as conversion-type negative electrodes in Li-ion batteries.",
journal = "Journal of Energy Storage",
title = "Machine learning-based high-throughput screening of Mg-containing alloys for hydrogen storage and energy conversion applications",
volume = "68",
pages = "107720",
doi = "10.1016/j.est.2023.107720"
}

Batalović, K., Radaković, J., Kuzmanović, B., Medić-Ilić, M.,& Paskaš Mamula, B.. (2023). Machine learning-based high-throughput screening of Mg-containing alloys for hydrogen storage and energy conversion applications. in Journal of Energy Storage, 68, 107720.
https://doi.org/10.1016/j.est.2023.107720

Batalović K, Radaković J, Kuzmanović B, Medić-Ilić M, Paskaš Mamula B. Machine learning-based high-throughput screening of Mg-containing alloys for hydrogen storage and energy conversion applications. in Journal of Energy Storage. 2023;68:107720.
doi:10.1016/j.est.2023.107720 .

Batalović, Katarina, Radaković, Jana, Kuzmanović, Bojana, Medić-Ilić, Mirjana, Paskaš Mamula, Bojana, "Machine learning-based high-throughput screening of Mg-containing alloys for hydrogen storage and energy conversion applications" in Journal of Energy Storage, 68 (2023):107720,
https://doi.org/10.1016/j.est.2023.107720 . .

TY  - JOUR
AU  - Ivanović, Marija M.
AU  - Knežević, Sanja
AU  - Mirković, Miljana M.
AU  - Kljajević, Ljiljana M.
AU  - Bučevac, Dušan
AU  - Pavlović, Vladimir B.
AU  - Nenadović, Miloš
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10741
AB  - It is well known that geopolymers are a new group of binder materials of alumosilicate origin. Geopolymers are made by the reaction of precursor aluminosilicate materials with alkaline activator solutions. The current research relates to a low-cost and eco-friendly procedure, suitable of being implemented in two easy steps. The first step is the production of a solid phase based on fly ash (Obrenovac, Serbia) and eggshell ash as waste materials rich in calcium. The second step is alkali activating the solid phase using an alkaline activator (a mixture of NaOH and Na2SiO3) and procedures in proper laboratory conditions. Four samples with different eggshell ash content were synthesized. The concentration of used NaOH was 12 mol dm−3. The structural properties of all investigated samples were analyzed by XRD (X-ray diffraction), DRIFT (diffuse reflectance infrared Fourier transform), SEM (scanning electron microscopy) and UV/Vis spectroscopy analysis. XRD determined the amorphous halo with the presence of quartz as the crystal phase in all of the investigated samples. These results were confirmed by DRIFT analysis. The morphology of the samples was determined by SEM analysis. UV/Vis showed that the material could be a potential adsorbent.
T2  - Sustainability
T1  - Structural Characterization of Geopolymers with the Addition of Eggshell Ash
VL  - 15
IS  - 6
SP  - 5419
DO  - 10.3390/su15065419
ER  - 

@article{
author = "Ivanović, Marija M. and Knežević, Sanja and Mirković, Miljana M. and Kljajević, Ljiljana M. and Bučevac, Dušan and Pavlović, Vladimir B. and Nenadović, Miloš",
year = "2023",
abstract = "It is well known that geopolymers are a new group of binder materials of alumosilicate origin. Geopolymers are made by the reaction of precursor aluminosilicate materials with alkaline activator solutions. The current research relates to a low-cost and eco-friendly procedure, suitable of being implemented in two easy steps. The first step is the production of a solid phase based on fly ash (Obrenovac, Serbia) and eggshell ash as waste materials rich in calcium. The second step is alkali activating the solid phase using an alkaline activator (a mixture of NaOH and Na2SiO3) and procedures in proper laboratory conditions. Four samples with different eggshell ash content were synthesized. The concentration of used NaOH was 12 mol dm−3. The structural properties of all investigated samples were analyzed by XRD (X-ray diffraction), DRIFT (diffuse reflectance infrared Fourier transform), SEM (scanning electron microscopy) and UV/Vis spectroscopy analysis. XRD determined the amorphous halo with the presence of quartz as the crystal phase in all of the investigated samples. These results were confirmed by DRIFT analysis. The morphology of the samples was determined by SEM analysis. UV/Vis showed that the material could be a potential adsorbent.",
journal = "Sustainability",
title = "Structural Characterization of Geopolymers with the Addition of Eggshell Ash",
volume = "15",
number = "6",
pages = "5419",
doi = "10.3390/su15065419"
}

Ivanović, M. M., Knežević, S., Mirković, M. M., Kljajević, L. M., Bučevac, D., Pavlović, V. B.,& Nenadović, M.. (2023). Structural Characterization of Geopolymers with the Addition of Eggshell Ash. in Sustainability, 15(6), 5419.
https://doi.org/10.3390/su15065419

Ivanović MM, Knežević S, Mirković MM, Kljajević LM, Bučevac D, Pavlović VB, Nenadović M. Structural Characterization of Geopolymers with the Addition of Eggshell Ash. in Sustainability. 2023;15(6):5419.
doi:10.3390/su15065419 .

Ivanović, Marija M., Knežević, Sanja, Mirković, Miljana M., Kljajević, Ljiljana M., Bučevac, Dušan, Pavlović, Vladimir B., Nenadović, Miloš, "Structural Characterization of Geopolymers with the Addition of Eggshell Ash" in Sustainability, 15, no. 6 (2023):5419,
https://doi.org/10.3390/su15065419 . .

TY  - JOUR
AU  - Ivanović, Marija M.
AU  - Knežević, Sanja
AU  - Radović, Ivona
AU  - Kljajević, Ljiljana M.
AU  - Mirković, Miljana M.
AU  - Nenadović, Miloš
AU  - Nenadović, Snežana S.
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10742
AB  - Geopolymers have excellent physical and mechanical properties, so they can be used as a substitute for ordinary polymers. Geopolymers are ceramic materials, which exhibit the property of brittleness, which can be a limitation in some structural applications. To overcome this shortcoming, a new group of materials (organic geopolymers) was developed. The aim of this work is the synthesis of organic (hybrid) geopolymers. A geopolymer based on metakaolin was synthesized as a reference sample, while polyvinyl alcohol was added as an organic phase for synthesizing a hybrid geopolymer. It was concluded that the systems follow the rule of behavior in liquid systems. The chemical composition of the samples was determined by X-ray fluorescence analysis (XRF). Structural and phase characterization of hybrid and reference materials were analyzed using X-ray diffraction (XRD)and Fourier-transform infrared spectroscopy (FTIR), which revealed new phases in the PVA-added samples. The results show that the content of added PVA in the reaction mixture affects the phase composition of the synthesized materials. To examine the possibility of adsorption of the samples, Ultraviolet-visible spectroscopy (UV/VIS) was used. The morphology was analyzed using a scanning electron microscope with energy dispersive spectroscopy (SEM/EDS), where efflorescence was observed and identified. After characterizing the geopolymer with the addition of PVA, we obtained a material that was far more porous than the basic sample, and we can conclude that we have synthesized a material that shows good mechanical properties.
T2  - Sustainability
T1  - Preparation and Characterization of Geopolymers Based on Metakaolin with the Addition of Organic Phase PVA
VL  - 15
IS  - 5
SP  - 4441
DO  - 10.3390/su15054441
ER  - 

@article{
author = "Ivanović, Marija M. and Knežević, Sanja and Radović, Ivona and Kljajević, Ljiljana M. and Mirković, Miljana M. and Nenadović, Miloš and Nenadović, Snežana S.",
year = "2023",
abstract = "Geopolymers have excellent physical and mechanical properties, so they can be used as a substitute for ordinary polymers. Geopolymers are ceramic materials, which exhibit the property of brittleness, which can be a limitation in some structural applications. To overcome this shortcoming, a new group of materials (organic geopolymers) was developed. The aim of this work is the synthesis of organic (hybrid) geopolymers. A geopolymer based on metakaolin was synthesized as a reference sample, while polyvinyl alcohol was added as an organic phase for synthesizing a hybrid geopolymer. It was concluded that the systems follow the rule of behavior in liquid systems. The chemical composition of the samples was determined by X-ray fluorescence analysis (XRF). Structural and phase characterization of hybrid and reference materials were analyzed using X-ray diffraction (XRD)and Fourier-transform infrared spectroscopy (FTIR), which revealed new phases in the PVA-added samples. The results show that the content of added PVA in the reaction mixture affects the phase composition of the synthesized materials. To examine the possibility of adsorption of the samples, Ultraviolet-visible spectroscopy (UV/VIS) was used. The morphology was analyzed using a scanning electron microscope with energy dispersive spectroscopy (SEM/EDS), where efflorescence was observed and identified. After characterizing the geopolymer with the addition of PVA, we obtained a material that was far more porous than the basic sample, and we can conclude that we have synthesized a material that shows good mechanical properties.",
journal = "Sustainability",
title = "Preparation and Characterization of Geopolymers Based on Metakaolin with the Addition of Organic Phase PVA",
volume = "15",
number = "5",
pages = "4441",
doi = "10.3390/su15054441"
}

Ivanović, M. M., Knežević, S., Radović, I., Kljajević, L. M., Mirković, M. M., Nenadović, M.,& Nenadović, S. S.. (2023). Preparation and Characterization of Geopolymers Based on Metakaolin with the Addition of Organic Phase PVA. in Sustainability, 15(5), 4441.
https://doi.org/10.3390/su15054441

Ivanović MM, Knežević S, Radović I, Kljajević LM, Mirković MM, Nenadović M, Nenadović SS. Preparation and Characterization of Geopolymers Based on Metakaolin with the Addition of Organic Phase PVA. in Sustainability. 2023;15(5):4441.
doi:10.3390/su15054441 .

Ivanović, Marija M., Knežević, Sanja, Radović, Ivona, Kljajević, Ljiljana M., Mirković, Miljana M., Nenadović, Miloš, Nenadović, Snežana S., "Preparation and Characterization of Geopolymers Based on Metakaolin with the Addition of Organic Phase PVA" in Sustainability, 15, no. 5 (2023):4441,
https://doi.org/10.3390/su15054441 . .

TY  - JOUR
AU  - Knežević, Sara
AU  - Ostojić, Jelena
AU  - Ognjanović, Miloš
AU  - Savić, Slađana
AU  - Kovačević, Aleksandra
AU  - Manojlović, Dragan
AU  - Stanković, Vesna
AU  - Stanković, Dalibor M.
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10468
AB  - Triclosan (TCS) is a polychlorinated phenoxy phenol (PCPPs) used as a disinfectant and a broad-spectrum antibacterial and antifungal agent in personal hygiene products. TCS easily forms diphenyl ethers and dioxins, which are persistent organic pollutants. This work used a double approach for the TSC sensing: a) screen-printed (SPE) electrochemical platform for on-site application, modified with lanthanum iron oxide and graphitic carbon nitride composite (LaFeO3/Fe2O3@g-C3N4/SPE); and b) carbon paste electrode (CPE), modified with the same material and used in laboratory conditions. Linear range from 0.1 μM to 10 μM, the limit of detection (LOD) of 29 nM and the limit of quantification (LOQ) of 91 nM were obtained for CP electrode in BRBS pH 8. SPE showed the best analytical parameters in BRBS at pH 3, with a linear range from 0.3 μM to 7 μM, LOD of 0.09 μM and LOQ of 0.28 μM. Furthermore, the influence of potential interferents was investigated and proven to be negligible. Determination of TSC was performed to estimate the environmental impact of this compound as well as the practical usefulness of the proposed sensor in the real sample analysis, confirmed with a HPLC analysis. © 2022 Elsevier B.V.
T2  - Science of the Total Environment
T1  - The environmentally friendly approaches based on the heterojunction interface of the LaFeO3/Fe2O3@g-C3N4 composite for the disposable and laboratory sensing of triclosan
VL  - 857
DO  - 10.1016/j.scitotenv.2022.159250
ER  - 

@article{
author = "Knežević, Sara and Ostojić, Jelena and Ognjanović, Miloš and Savić, Slađana and Kovačević, Aleksandra and Manojlović, Dragan and Stanković, Vesna and Stanković, Dalibor M.",
year = "2023",
abstract = "Triclosan (TCS) is a polychlorinated phenoxy phenol (PCPPs) used as a disinfectant and a broad-spectrum antibacterial and antifungal agent in personal hygiene products. TCS easily forms diphenyl ethers and dioxins, which are persistent organic pollutants. This work used a double approach for the TSC sensing: a) screen-printed (SPE) electrochemical platform for on-site application, modified with lanthanum iron oxide and graphitic carbon nitride composite (LaFeO3/Fe2O3@g-C3N4/SPE); and b) carbon paste electrode (CPE), modified with the same material and used in laboratory conditions. Linear range from 0.1 μM to 10 μM, the limit of detection (LOD) of 29 nM and the limit of quantification (LOQ) of 91 nM were obtained for CP electrode in BRBS pH 8. SPE showed the best analytical parameters in BRBS at pH 3, with a linear range from 0.3 μM to 7 μM, LOD of 0.09 μM and LOQ of 0.28 μM. Furthermore, the influence of potential interferents was investigated and proven to be negligible. Determination of TSC was performed to estimate the environmental impact of this compound as well as the practical usefulness of the proposed sensor in the real sample analysis, confirmed with a HPLC analysis. © 2022 Elsevier B.V.",
journal = "Science of the Total Environment",
title = "The environmentally friendly approaches based on the heterojunction interface of the LaFeO3/Fe2O3@g-C3N4 composite for the disposable and laboratory sensing of triclosan",
volume = "857",
doi = "10.1016/j.scitotenv.2022.159250"
}

Knežević, S., Ostojić, J., Ognjanović, M., Savić, S., Kovačević, A., Manojlović, D., Stanković, V.,& Stanković, D. M.. (2023). The environmentally friendly approaches based on the heterojunction interface of the LaFeO3/Fe2O3@g-C3N4 composite for the disposable and laboratory sensing of triclosan. in Science of the Total Environment, 857.
https://doi.org/10.1016/j.scitotenv.2022.159250

Knežević S, Ostojić J, Ognjanović M, Savić S, Kovačević A, Manojlović D, Stanković V, Stanković DM. The environmentally friendly approaches based on the heterojunction interface of the LaFeO3/Fe2O3@g-C3N4 composite for the disposable and laboratory sensing of triclosan. in Science of the Total Environment. 2023;857.
doi:10.1016/j.scitotenv.2022.159250 .

Knežević, Sara, Ostojić, Jelena, Ognjanović, Miloš, Savić, Slađana, Kovačević, Aleksandra, Manojlović, Dragan, Stanković, Vesna, Stanković, Dalibor M., "The environmentally friendly approaches based on the heterojunction interface of the LaFeO3/Fe2O3@g-C3N4 composite for the disposable and laboratory sensing of triclosan" in Science of the Total Environment, 857 (2023),
https://doi.org/10.1016/j.scitotenv.2022.159250 . .

TY  - JOUR
AU  - Simić, Marija D.
AU  - Savić, Branislava G.
AU  - Ognjanović, Miloš R.
AU  - Stanković, Dalibor M.
AU  - Relić, Dubravka J.
AU  - Aćimović, Danka D.
AU  - Brdarić, Tanja P.
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10549
AB  - Bisphenol A (BPA) is an organic pollutant that is widely spread in waterbody with effluents as a result of its extensive use in the plastics industry. It posses to the class of compounds that are endocrine disruptors and has a great negative impact on living organisms. Therefore, the progress in development of green technology for BPA removal from the aquatic media is crucial for environmental protection. This paper presents BPA removal by electrochemical oxidation on SnO2-MWCNT (tin dioxide-multi walled carbon nanotube) nanocomposite anode. The nanocomposite was structural and morphological characterized by X-ray powder diffraction and transmission electron microscopy. Electrochemical properties of the SnO2-MWCNT anode were investigated using cyclic voltammetry, linear sweep voltammetry and electrical impedance spectroscopy. The electrochemical behavior of anodes toward BPA in sodium sulfate solutions has shown that BPA is oxidized by indirectly mechanism via hydroxyl radicals (verified by quenching tests). Electrolysis of BPA has been done in galvanostatic regime at current densities 2.5, 5.0, 10.0, 15.0 and 20.0 mA cm−2 in 0.1 M sodium sulfate supported electrolyte pH 4.0. Complete degradation of BPA was accomplished after 5 h of electrolysis at a current density of 20 mA cm−2. The proposed electrochemical technology using a low-cost SnO2-MWCNT electrode is promising for wastewater BPA removal.
T2  - Journal of Water Process Engineering
T1  - Degradation of bisphenol A on SnO2-MWCNT electrode using electrochemical oxidation
VL  - 51
SP  - 103416
DO  - 10.1016/j.jwpe.2022.103416
ER  - 

@article{
author = "Simić, Marija D. and Savić, Branislava G. and Ognjanović, Miloš R. and Stanković, Dalibor M. and Relić, Dubravka J. and Aćimović, Danka D. and Brdarić, Tanja P.",
year = "2023",
abstract = "Bisphenol A (BPA) is an organic pollutant that is widely spread in waterbody with effluents as a result of its extensive use in the plastics industry. It posses to the class of compounds that are endocrine disruptors and has a great negative impact on living organisms. Therefore, the progress in development of green technology for BPA removal from the aquatic media is crucial for environmental protection. This paper presents BPA removal by electrochemical oxidation on SnO2-MWCNT (tin dioxide-multi walled carbon nanotube) nanocomposite anode. The nanocomposite was structural and morphological characterized by X-ray powder diffraction and transmission electron microscopy. Electrochemical properties of the SnO2-MWCNT anode were investigated using cyclic voltammetry, linear sweep voltammetry and electrical impedance spectroscopy. The electrochemical behavior of anodes toward BPA in sodium sulfate solutions has shown that BPA is oxidized by indirectly mechanism via hydroxyl radicals (verified by quenching tests). Electrolysis of BPA has been done in galvanostatic regime at current densities 2.5, 5.0, 10.0, 15.0 and 20.0 mA cm−2 in 0.1 M sodium sulfate supported electrolyte pH 4.0. Complete degradation of BPA was accomplished after 5 h of electrolysis at a current density of 20 mA cm−2. The proposed electrochemical technology using a low-cost SnO2-MWCNT electrode is promising for wastewater BPA removal.",
journal = "Journal of Water Process Engineering",
title = "Degradation of bisphenol A on SnO2-MWCNT electrode using electrochemical oxidation",
volume = "51",
pages = "103416",
doi = "10.1016/j.jwpe.2022.103416"
}

Simić, M. D., Savić, B. G., Ognjanović, M. R., Stanković, D. M., Relić, D. J., Aćimović, D. D.,& Brdarić, T. P.. (2023). Degradation of bisphenol A on SnO2-MWCNT electrode using electrochemical oxidation. in Journal of Water Process Engineering, 51, 103416.
https://doi.org/10.1016/j.jwpe.2022.103416

Simić MD, Savić BG, Ognjanović MR, Stanković DM, Relić DJ, Aćimović DD, Brdarić TP. Degradation of bisphenol A on SnO2-MWCNT electrode using electrochemical oxidation. in Journal of Water Process Engineering. 2023;51:103416.
doi:10.1016/j.jwpe.2022.103416 .

Simić, Marija D., Savić, Branislava G., Ognjanović, Miloš R., Stanković, Dalibor M., Relić, Dubravka J., Aćimović, Danka D., Brdarić, Tanja P., "Degradation of bisphenol A on SnO2-MWCNT electrode using electrochemical oxidation" in Journal of Water Process Engineering, 51 (2023):103416,
https://doi.org/10.1016/j.jwpe.2022.103416 . .

TY  - JOUR
AU  - Đurđić, Slađana
AU  - Vlahović, Filip
AU  - Markićević, Milan
AU  - Mutić, Jelena
AU  - Manojlović, Dragan
AU  - Stanković, Vesna
AU  - Švorc, Lubomír
AU  - Stanković, Dalibor M.
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10618
AB  - Herein, a screen–printed diamond electrode (SPDE) coupled with a “point-of-care” platform (30 µL-drop concepts, single-drop-detection approach) was successfully applied for the electrochemical determination of pterostilbene (PTS). Cyclic voltammetry identified irreversible oxidation of PTS, where oxidation peak was shown to be strongly dependent on the pH of the working environmental. Although the proposition of the detailed electrochemical oxidation mechanism of PTS goes out of the scope of the present research, we have determined the most probable reactive site of our analyte, by utilizing DFT-based reactivity descriptors (Fukui functions). For electrochemical quantification of PTS, oxidation peak at 0.32 V (vs. Ag/AgCl) was followed in presence of 0.5 mol L−1 of Briton–Robinson buffer solution (pH = 9). Coupled with the optimized parameters of differential pulse voltammetry (DPV), SPDE detected PTS in two linear ranges (first range was from 0.011 to 0.912 µmol L−1; second range was from 0.912 to 4.420 µmol L−1), providing the LOD and LOQ on a nanomolar level (3.1 nmol L−1 and 10.0 nmol L−1, respectively). The selectivity of the optimized DPV method was found to be excellent, with the current changes of less than 7%, in the presence of ten times higher concentrations of the certain interferences. The practical applicability of the SPDE and single-drop-detection approach in dietary supplements (with a declared PTS content of 50 mg/tablet), with the recovery values ranging from 95 to 102%, shows that the developed method has high potential for precise and accurate PTS detection, as well as exceptional miniaturization possibilities of relevant equipment for on-site sensing.
T2  - Chemosensors
T1  - Application of Screen Printed Diamond Electrode, Coupled with “Point-of-Care” Platform, for Nanomolar Quantification of Phytonutrient Pterostilbene in Dietary Supplements: An Experimental Study Supported by Theory
VL  - 11
IS  - 1
SP  - 15
DO  - 10.3390/chemosensors11010015
ER  - 

@article{
author = "Đurđić, Slađana and Vlahović, Filip and Markićević, Milan and Mutić, Jelena and Manojlović, Dragan and Stanković, Vesna and Švorc, Lubomír and Stanković, Dalibor M.",
year = "2023",
abstract = "Herein, a screen–printed diamond electrode (SPDE) coupled with a “point-of-care” platform (30 µL-drop concepts, single-drop-detection approach) was successfully applied for the electrochemical determination of pterostilbene (PTS). Cyclic voltammetry identified irreversible oxidation of PTS, where oxidation peak was shown to be strongly dependent on the pH of the working environmental. Although the proposition of the detailed electrochemical oxidation mechanism of PTS goes out of the scope of the present research, we have determined the most probable reactive site of our analyte, by utilizing DFT-based reactivity descriptors (Fukui functions). For electrochemical quantification of PTS, oxidation peak at 0.32 V (vs. Ag/AgCl) was followed in presence of 0.5 mol L−1 of Briton–Robinson buffer solution (pH = 9). Coupled with the optimized parameters of differential pulse voltammetry (DPV), SPDE detected PTS in two linear ranges (first range was from 0.011 to 0.912 µmol L−1; second range was from 0.912 to 4.420 µmol L−1), providing the LOD and LOQ on a nanomolar level (3.1 nmol L−1 and 10.0 nmol L−1, respectively). The selectivity of the optimized DPV method was found to be excellent, with the current changes of less than 7%, in the presence of ten times higher concentrations of the certain interferences. The practical applicability of the SPDE and single-drop-detection approach in dietary supplements (with a declared PTS content of 50 mg/tablet), with the recovery values ranging from 95 to 102%, shows that the developed method has high potential for precise and accurate PTS detection, as well as exceptional miniaturization possibilities of relevant equipment for on-site sensing.",
journal = "Chemosensors",
title = "Application of Screen Printed Diamond Electrode, Coupled with “Point-of-Care” Platform, for Nanomolar Quantification of Phytonutrient Pterostilbene in Dietary Supplements: An Experimental Study Supported by Theory",
volume = "11",
number = "1",
pages = "15",
doi = "10.3390/chemosensors11010015"
}

Đurđić, S., Vlahović, F., Markićević, M., Mutić, J., Manojlović, D., Stanković, V., Švorc, L.,& Stanković, D. M.. (2023). Application of Screen Printed Diamond Electrode, Coupled with “Point-of-Care” Platform, for Nanomolar Quantification of Phytonutrient Pterostilbene in Dietary Supplements: An Experimental Study Supported by Theory. in Chemosensors, 11(1), 15.
https://doi.org/10.3390/chemosensors11010015

Đurđić S, Vlahović F, Markićević M, Mutić J, Manojlović D, Stanković V, Švorc L, Stanković DM. Application of Screen Printed Diamond Electrode, Coupled with “Point-of-Care” Platform, for Nanomolar Quantification of Phytonutrient Pterostilbene in Dietary Supplements: An Experimental Study Supported by Theory. in Chemosensors. 2023;11(1):15.
doi:10.3390/chemosensors11010015 .

Đurđić, Slađana, Vlahović, Filip, Markićević, Milan, Mutić, Jelena, Manojlović, Dragan, Stanković, Vesna, Švorc, Lubomír, Stanković, Dalibor M., "Application of Screen Printed Diamond Electrode, Coupled with “Point-of-Care” Platform, for Nanomolar Quantification of Phytonutrient Pterostilbene in Dietary Supplements: An Experimental Study Supported by Theory" in Chemosensors, 11, no. 1 (2023):15,
https://doi.org/10.3390/chemosensors11010015 . .

TY  - JOUR
AU  - Korina, Elena
AU  - Abramyan, Anton
AU  - Bol’shakov, Oleg
AU  - Avdin, Vyacheslav V.
AU  - Savić, Slađana
AU  - Manojlović, Dragan D.
AU  - Stanković, Vesna
AU  - Stanković, Dalibor M.
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10621
AB  - Stable, water-soluble titanium complexed with mandelic acid was used as a precursor for titanium phosphorus double oxide obtained in hydrothermal conditions in the presence of phosphoric acid. Surprisingly, hydrolysis of organic complexes provided a microstructured sphere with narrow size distribution, low aggregation and a small fraction of morphological irregularities. Obtained microspheres had a complex structure comprised of flakes, whose size could be manipulated with temperature conditions. Samples were found to be electrochemically active against sulcotrione, a well-recognized herbicide. Electrochemical sensors based on the synthesized microspheres were successfully adapted for natural water reservoir analysis and exhibited low levels of detection of 0.61 µM, limit of quantification of 1.86 µM, wide dynamic linear range from 2 to 200 µM, good selectivity, excellent reproducibility and in-time stability.
T2  - Sensors
T1  - Microspherical Titanium-Phosphorus Double Oxide: Hierarchical Structure Development for Sensing Applications
VL  - 23
IS  - 2
SP  - 933
DO  - 10.3390/s23020933
ER  - 

@article{
author = "Korina, Elena and Abramyan, Anton and Bol’shakov, Oleg and Avdin, Vyacheslav V. and Savić, Slađana and Manojlović, Dragan D. and Stanković, Vesna and Stanković, Dalibor M.",
year = "2023",
abstract = "Stable, water-soluble titanium complexed with mandelic acid was used as a precursor for titanium phosphorus double oxide obtained in hydrothermal conditions in the presence of phosphoric acid. Surprisingly, hydrolysis of organic complexes provided a microstructured sphere with narrow size distribution, low aggregation and a small fraction of morphological irregularities. Obtained microspheres had a complex structure comprised of flakes, whose size could be manipulated with temperature conditions. Samples were found to be electrochemically active against sulcotrione, a well-recognized herbicide. Electrochemical sensors based on the synthesized microspheres were successfully adapted for natural water reservoir analysis and exhibited low levels of detection of 0.61 µM, limit of quantification of 1.86 µM, wide dynamic linear range from 2 to 200 µM, good selectivity, excellent reproducibility and in-time stability.",
journal = "Sensors",
title = "Microspherical Titanium-Phosphorus Double Oxide: Hierarchical Structure Development for Sensing Applications",
volume = "23",
number = "2",
pages = "933",
doi = "10.3390/s23020933"
}

Korina, E., Abramyan, A., Bol’shakov, O., Avdin, V. V., Savić, S., Manojlović, D. D., Stanković, V.,& Stanković, D. M.. (2023). Microspherical Titanium-Phosphorus Double Oxide: Hierarchical Structure Development for Sensing Applications. in Sensors, 23(2), 933.
https://doi.org/10.3390/s23020933

Korina E, Abramyan A, Bol’shakov O, Avdin VV, Savić S, Manojlović DD, Stanković V, Stanković DM. Microspherical Titanium-Phosphorus Double Oxide: Hierarchical Structure Development for Sensing Applications. in Sensors. 2023;23(2):933.
doi:10.3390/s23020933 .

Korina, Elena, Abramyan, Anton, Bol’shakov, Oleg, Avdin, Vyacheslav V., Savić, Slađana, Manojlović, Dragan D., Stanković, Vesna, Stanković, Dalibor M., "Microspherical Titanium-Phosphorus Double Oxide: Hierarchical Structure Development for Sensing Applications" in Sensors, 23, no. 2 (2023):933,
https://doi.org/10.3390/s23020933 . .

TY  - JOUR
AU  - Marković, Aleksandar
AU  - Savić, Slađana
AU  - Kukuruzar, Andrej J.
AU  - Konya, Zoltan
AU  - Manojlović, Dragan D.
AU  - Ognjanović, Miloš
AU  - Stanković, Dalibor M.
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10689
AB  - In this paper, electrochemical degradation of Reactive Black 5 (RB5) textile azo dye was examined in regard to different synthesis procedures for making PbO2–graphitic carbon nitride (g-C3N4) electrode. The reaction of with ClO− in the presence of different surfactants, i.e., cetyltrimethylammonium bromide (CTAB) and tetrabutylammonium phosphate (TBAP), under conventional conditions, resulted in the formation of PbO2 with varying morphology. The obtained materials were combined with g-C3N4 for the preparation of the final composite materials, which were then characterized morphologically and electrochemically. After optimizing the degradation method, it was shown that an anode comprising a steel electrode coated with the composite of PbO2 synthesized using CTAB as template and g-C3N4, and using 0.15 M Na2SO4 as the supporting electrolyte, gave the best performance for RB5 dye removal from a 35 mg/L solution. The treatment duration was 60 min, applying a current of 0.17 A (electrode surface 4 cm2, current density of 42.5 mA/cm2), while the initial pH of the testing solution was 2. The reusability and longevity of the electrode surface (which showed no significant change in activity throughout the study) may suggest that this approach is a promising candidate for wastewater treatment and pollutant removal.
T2  - Catalysts
T1  - Differently prepared PbO2/graphitic carbon nitride composites for efficient electrochemical removal of Reactive Black 5 dye
VL  - 13
IS  - 2
SP  - 328
DO  - 10.3390/catal13020328
ER  - 

@article{
author = "Marković, Aleksandar and Savić, Slađana and Kukuruzar, Andrej J. and Konya, Zoltan and Manojlović, Dragan D. and Ognjanović, Miloš and Stanković, Dalibor M.",
year = "2023",
abstract = "In this paper, electrochemical degradation of Reactive Black 5 (RB5) textile azo dye was examined in regard to different synthesis procedures for making PbO2–graphitic carbon nitride (g-C3N4) electrode. The reaction of with ClO− in the presence of different surfactants, i.e., cetyltrimethylammonium bromide (CTAB) and tetrabutylammonium phosphate (TBAP), under conventional conditions, resulted in the formation of PbO2 with varying morphology. The obtained materials were combined with g-C3N4 for the preparation of the final composite materials, which were then characterized morphologically and electrochemically. After optimizing the degradation method, it was shown that an anode comprising a steel electrode coated with the composite of PbO2 synthesized using CTAB as template and g-C3N4, and using 0.15 M Na2SO4 as the supporting electrolyte, gave the best performance for RB5 dye removal from a 35 mg/L solution. The treatment duration was 60 min, applying a current of 0.17 A (electrode surface 4 cm2, current density of 42.5 mA/cm2), while the initial pH of the testing solution was 2. The reusability and longevity of the electrode surface (which showed no significant change in activity throughout the study) may suggest that this approach is a promising candidate for wastewater treatment and pollutant removal.",
journal = "Catalysts",
title = "Differently prepared PbO2/graphitic carbon nitride composites for efficient electrochemical removal of Reactive Black 5 dye",
volume = "13",
number = "2",
pages = "328",
doi = "10.3390/catal13020328"
}

Marković, A., Savić, S., Kukuruzar, A. J., Konya, Z., Manojlović, D. D., Ognjanović, M.,& Stanković, D. M.. (2023). Differently prepared PbO2/graphitic carbon nitride composites for efficient electrochemical removal of Reactive Black 5 dye. in Catalysts, 13(2), 328.
https://doi.org/10.3390/catal13020328

Marković A, Savić S, Kukuruzar AJ, Konya Z, Manojlović DD, Ognjanović M, Stanković DM. Differently prepared PbO2/graphitic carbon nitride composites for efficient electrochemical removal of Reactive Black 5 dye. in Catalysts. 2023;13(2):328.
doi:10.3390/catal13020328 .

Marković, Aleksandar, Savić, Slađana, Kukuruzar, Andrej J., Konya, Zoltan, Manojlović, Dragan D., Ognjanović, Miloš, Stanković, Dalibor M., "Differently prepared PbO2/graphitic carbon nitride composites for efficient electrochemical removal of Reactive Black 5 dye" in Catalysts, 13, no. 2 (2023):328,
https://doi.org/10.3390/catal13020328 . .

TY  - JOUR
AU  - Mijajlović, Aleksandar
AU  - Ognjanović, Miloš
AU  - Manojlović, Dragan
AU  - Vlahović, Filip
AU  - Ðurđić, Slađana
AU  - Stanković, Vesna
AU  - Stanković, Dalibor M.
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10692
AB  - There are ten million people in the world who have Parkinson’s disease. The most potent medicine for Parkinson’s disease is levodopa (L-DOPA). However, long-term consumption of L-DOPA leads to the appearance of side effects, as a result of which the control and monitoring of its concentrations are of great importance. In this work, we have designed a new electrochemical sensor for detecting L-DOPA using a carbon paste electrode (CPE) modified with Eu2O3@Cr2O3 composite nanoparticles. Rare earth elements, including Eu, are increasingly used to design new electrode nanocomposites with enhanced electrocatalytic properties. Europium has been considered a significant lanthanide element with greater redox reaction behavior. We conducted a hydrothermal synthesis of Eu2O3@Cr2O3 and, for the first time, the acquired nanoparticles were used to modify CPE. The proposed Eu2O3@Cr2O3/CPE electrode was investigated in terms of its electrocatalytic properties and then used to develop an analytical method for detecting and quantifying L-DOPA. The proposed sensor offers a wide linear range (1–100 µM), high sensitivity (1.38 µA µM−1 cm−2) and a low detection limit (0.72 µM). The practical application of the proposed sensor was investigated by analyzing commercially available pharmaceutical tablets of L-DOPA. The corresponding results indicate the excellent potential of the Eu2O3@Cr2O3/CPE sensor for application in real-time L-DOPA detection.
T2  - Biosensors
T1  - Eu2O3@Cr2O3 Nanoparticles-Modified Carbon Paste Electrode for Efficient Electrochemical Sensing of Neurotransmitters Precursor L-DOPA
VL  - 13
IS  - 2
SP  - 201
DO  - 10.3390/bios13020201
ER  - 

@article{
author = "Mijajlović, Aleksandar and Ognjanović, Miloš and Manojlović, Dragan and Vlahović, Filip and Ðurđić, Slađana and Stanković, Vesna and Stanković, Dalibor M.",
year = "2023",
abstract = "There are ten million people in the world who have Parkinson’s disease. The most potent medicine for Parkinson’s disease is levodopa (L-DOPA). However, long-term consumption of L-DOPA leads to the appearance of side effects, as a result of which the control and monitoring of its concentrations are of great importance. In this work, we have designed a new electrochemical sensor for detecting L-DOPA using a carbon paste electrode (CPE) modified with Eu2O3@Cr2O3 composite nanoparticles. Rare earth elements, including Eu, are increasingly used to design new electrode nanocomposites with enhanced electrocatalytic properties. Europium has been considered a significant lanthanide element with greater redox reaction behavior. We conducted a hydrothermal synthesis of Eu2O3@Cr2O3 and, for the first time, the acquired nanoparticles were used to modify CPE. The proposed Eu2O3@Cr2O3/CPE electrode was investigated in terms of its electrocatalytic properties and then used to develop an analytical method for detecting and quantifying L-DOPA. The proposed sensor offers a wide linear range (1–100 µM), high sensitivity (1.38 µA µM−1 cm−2) and a low detection limit (0.72 µM). The practical application of the proposed sensor was investigated by analyzing commercially available pharmaceutical tablets of L-DOPA. The corresponding results indicate the excellent potential of the Eu2O3@Cr2O3/CPE sensor for application in real-time L-DOPA detection.",
journal = "Biosensors",
title = "Eu2O3@Cr2O3 Nanoparticles-Modified Carbon Paste Electrode for Efficient Electrochemical Sensing of Neurotransmitters Precursor L-DOPA",
volume = "13",
number = "2",
pages = "201",
doi = "10.3390/bios13020201"
}

Mijajlović, A., Ognjanović, M., Manojlović, D., Vlahović, F., Ðurđić, S., Stanković, V.,& Stanković, D. M.. (2023). Eu2O3@Cr2O3 Nanoparticles-Modified Carbon Paste Electrode for Efficient Electrochemical Sensing of Neurotransmitters Precursor L-DOPA. in Biosensors, 13(2), 201.
https://doi.org/10.3390/bios13020201

Mijajlović A, Ognjanović M, Manojlović D, Vlahović F, Ðurđić S, Stanković V, Stanković DM. Eu2O3@Cr2O3 Nanoparticles-Modified Carbon Paste Electrode for Efficient Electrochemical Sensing of Neurotransmitters Precursor L-DOPA. in Biosensors. 2023;13(2):201.
doi:10.3390/bios13020201 .

Mijajlović, Aleksandar, Ognjanović, Miloš, Manojlović, Dragan, Vlahović, Filip, Ðurđić, Slađana, Stanković, Vesna, Stanković, Dalibor M., "Eu2O3@Cr2O3 Nanoparticles-Modified Carbon Paste Electrode for Efficient Electrochemical Sensing of Neurotransmitters Precursor L-DOPA" in Biosensors, 13, no. 2 (2023):201,
https://doi.org/10.3390/bios13020201 . .

TY  - JOUR
AU  - Ognjanović, Miloš
AU  - Jaćimović, Željko
AU  - Kosović-Perutović, Milica
AU  - Besu Žižak, Irina
AU  - Stanojković, Tatjana
AU  - Žižak, Željko
AU  - Dojčinović, Biljana
AU  - Stanković, Dalibor M.
AU  - Antić, Bratislav
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10733
AB  - Partial cation substitution can significantly change the physical properties of parent compounds. By controlling the chemical composition and knowing the mutual relationship between composition and physical properties, it is possible to tailor the properties of materials to those that are superior for desired technological application. Using the polyol synthesis procedure, a series of yttrium-substituted iron oxide nanoconstructs, γ-Fe2−xYxO3 (YIONs), was prepared. It was found that Y3+ could substitute Fe3+ in the crystal structures of maghemite (γ-Fe2O3) up to a limited concentration of ~1.5% (γ-Fe1.969Y0.031O3). Analysis of TEM micrographs showed that crystallites or particles were aggregated in flower-like structures with diameters from 53.7 ± 6.2 nm to 97.3 ± 37.0 nm, depending on yttrium concentration. To be investigated for potential applications as magnetic hyperthermia agents, YIONs were tested twice: their heating efficiency was tested and their toxicity was investigated. The Specific Absorption Rate (SAR) values were in the range of 32.6 W/g to 513 W/g and significantly decreased with increased yttrium concentration in the samples. Intrinsic loss power (ILP) for γ-Fe2O3 and γ-Fe1.995Y0.005O3 were ~8–9 nH·m2/Kg, which pointed to their excellent heating efficiency. IC50 values of investigated samples against cancer (HeLa) and normal (MRC-5) cells decreased with increased yttrium concentration and were higher than ~300 μg/mL. The samples of γ-Fe2−xYxO3 did not show a genotoxic effect. The results of toxicity studies show that YIONs are suitable for further in vitro/in vivo studies toward to their potential medical applications, while results of heat generation point to their potential use in magnetic hyperthermia cancer treatment or use as self-heating systems for other technological applications such as catalysis.
T2  - Nanomaterials
T1  - Self-Heating Flower-like Nanoconstructs with Limited Incorporation of Yttrium in Maghemite: Effect of Chemical Composition on Heating Efficiency, Cytotoxicity and Genotoxicity
VL  - 13
IS  - 5
SP  - 870
DO  - 10.3390/nano13050870
ER  - 

@article{
author = "Ognjanović, Miloš and Jaćimović, Željko and Kosović-Perutović, Milica and Besu Žižak, Irina and Stanojković, Tatjana and Žižak, Željko and Dojčinović, Biljana and Stanković, Dalibor M. and Antić, Bratislav",
year = "2023",
abstract = "Partial cation substitution can significantly change the physical properties of parent compounds. By controlling the chemical composition and knowing the mutual relationship between composition and physical properties, it is possible to tailor the properties of materials to those that are superior for desired technological application. Using the polyol synthesis procedure, a series of yttrium-substituted iron oxide nanoconstructs, γ-Fe2−xYxO3 (YIONs), was prepared. It was found that Y3+ could substitute Fe3+ in the crystal structures of maghemite (γ-Fe2O3) up to a limited concentration of ~1.5% (γ-Fe1.969Y0.031O3). Analysis of TEM micrographs showed that crystallites or particles were aggregated in flower-like structures with diameters from 53.7 ± 6.2 nm to 97.3 ± 37.0 nm, depending on yttrium concentration. To be investigated for potential applications as magnetic hyperthermia agents, YIONs were tested twice: their heating efficiency was tested and their toxicity was investigated. The Specific Absorption Rate (SAR) values were in the range of 32.6 W/g to 513 W/g and significantly decreased with increased yttrium concentration in the samples. Intrinsic loss power (ILP) for γ-Fe2O3 and γ-Fe1.995Y0.005O3 were ~8–9 nH·m2/Kg, which pointed to their excellent heating efficiency. IC50 values of investigated samples against cancer (HeLa) and normal (MRC-5) cells decreased with increased yttrium concentration and were higher than ~300 μg/mL. The samples of γ-Fe2−xYxO3 did not show a genotoxic effect. The results of toxicity studies show that YIONs are suitable for further in vitro/in vivo studies toward to their potential medical applications, while results of heat generation point to their potential use in magnetic hyperthermia cancer treatment or use as self-heating systems for other technological applications such as catalysis.",
journal = "Nanomaterials",
title = "Self-Heating Flower-like Nanoconstructs with Limited Incorporation of Yttrium in Maghemite: Effect of Chemical Composition on Heating Efficiency, Cytotoxicity and Genotoxicity",
volume = "13",
number = "5",
pages = "870",
doi = "10.3390/nano13050870"
}

Ognjanović, M., Jaćimović, Ž., Kosović-Perutović, M., Besu Žižak, I., Stanojković, T., Žižak, Ž., Dojčinović, B., Stanković, D. M.,& Antić, B.. (2023). Self-Heating Flower-like Nanoconstructs with Limited Incorporation of Yttrium in Maghemite: Effect of Chemical Composition on Heating Efficiency, Cytotoxicity and Genotoxicity. in Nanomaterials, 13(5), 870.
https://doi.org/10.3390/nano13050870

Ognjanović M, Jaćimović Ž, Kosović-Perutović M, Besu Žižak I, Stanojković T, Žižak Ž, Dojčinović B, Stanković DM, Antić B. Self-Heating Flower-like Nanoconstructs with Limited Incorporation of Yttrium in Maghemite: Effect of Chemical Composition on Heating Efficiency, Cytotoxicity and Genotoxicity. in Nanomaterials. 2023;13(5):870.
doi:10.3390/nano13050870 .

Ognjanović, Miloš, Jaćimović, Željko, Kosović-Perutović, Milica, Besu Žižak, Irina, Stanojković, Tatjana, Žižak, Željko, Dojčinović, Biljana, Stanković, Dalibor M., Antić, Bratislav, "Self-Heating Flower-like Nanoconstructs with Limited Incorporation of Yttrium in Maghemite: Effect of Chemical Composition on Heating Efficiency, Cytotoxicity and Genotoxicity" in Nanomaterials, 13, no. 5 (2023):870,
https://doi.org/10.3390/nano13050870 . .

TY  - JOUR
AU  - Mutić, Tijana
AU  - Ognjanović, Miloš
AU  - Kodranov, Igor
AU  - Robić, Marko
AU  - Savić, Slađana
AU  - Krehula, Stjepko
AU  - Stanković, Dalibor M.
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10737
AB  - In this work, we investigated the morphological and electrochemical properties of gallium/bismuth mixed oxide. The bismuth concentration was varied from 0 to 100%. The correct ratio was determined with inductively coupled plasma-optical emission spectroscopy (ICP-OES), while surface characteristics were determined using scanning electron microscopy (SEM) and X-ray diffraction (XRD) measurement. Electrochemical characteristics were studied using electrochemical impedance spectroscopy (EIS) in the Fe2+/3+ couple. The obtained materials were tested for adrenaline detection. After square wave voltammetry (SWV) optimization, the best electrode showed a wide linear working range from 7 to 100 µM at pH 6 of the Britton–Robinson buffer solution (BRBS) supporting electrolyte. The limit of detection (LOD) for the proposed method was calculated as 1.9 µM, with a limit of quantification (LOQ) of 5.8 µM. The excellent selectivity of the proposed method, with good repeatability and reproducibility, strongly suggests the possible application of the procedure for the determination of adrenaline in artificially prepared real samples. The practical applicability with good recovery values indicates that the morphology of the materials is closely connected with other parameters, which further suggests that the developed approach can offer a low-cost, rapid, selective, and sensitive method for adrenaline monitoring. Graphical abstract: [Figure not available: see fulltext.] © 2023, Springer-Verlag GmbH Germany, part of Springer Nature.
T2  - Analytical and Bioanalytical Chemistry
T1  - The influence of bismuth participation on the morphological and electrochemical characteristics of gallium oxide for the detection of adrenaline
IS  - InPress
DO  - 10.1007/s00216-023-04617-7
ER  - 

@article{
author = "Mutić, Tijana and Ognjanović, Miloš and Kodranov, Igor and Robić, Marko and Savić, Slađana and Krehula, Stjepko and Stanković, Dalibor M.",
year = "2023",
abstract = "In this work, we investigated the morphological and electrochemical properties of gallium/bismuth mixed oxide. The bismuth concentration was varied from 0 to 100%. The correct ratio was determined with inductively coupled plasma-optical emission spectroscopy (ICP-OES), while surface characteristics were determined using scanning electron microscopy (SEM) and X-ray diffraction (XRD) measurement. Electrochemical characteristics were studied using electrochemical impedance spectroscopy (EIS) in the Fe2+/3+ couple. The obtained materials were tested for adrenaline detection. After square wave voltammetry (SWV) optimization, the best electrode showed a wide linear working range from 7 to 100 µM at pH 6 of the Britton–Robinson buffer solution (BRBS) supporting electrolyte. The limit of detection (LOD) for the proposed method was calculated as 1.9 µM, with a limit of quantification (LOQ) of 5.8 µM. The excellent selectivity of the proposed method, with good repeatability and reproducibility, strongly suggests the possible application of the procedure for the determination of adrenaline in artificially prepared real samples. The practical applicability with good recovery values indicates that the morphology of the materials is closely connected with other parameters, which further suggests that the developed approach can offer a low-cost, rapid, selective, and sensitive method for adrenaline monitoring. Graphical abstract: [Figure not available: see fulltext.] © 2023, Springer-Verlag GmbH Germany, part of Springer Nature.",
journal = "Analytical and Bioanalytical Chemistry",
title = "The influence of bismuth participation on the morphological and electrochemical characteristics of gallium oxide for the detection of adrenaline",
number = "InPress",
doi = "10.1007/s00216-023-04617-7"
}

Mutić, T., Ognjanović, M., Kodranov, I., Robić, M., Savić, S., Krehula, S.,& Stanković, D. M.. (2023). The influence of bismuth participation on the morphological and electrochemical characteristics of gallium oxide for the detection of adrenaline. in Analytical and Bioanalytical Chemistry(InPress).
https://doi.org/10.1007/s00216-023-04617-7

Mutić T, Ognjanović M, Kodranov I, Robić M, Savić S, Krehula S, Stanković DM. The influence of bismuth participation on the morphological and electrochemical characteristics of gallium oxide for the detection of adrenaline. in Analytical and Bioanalytical Chemistry. 2023;(InPress).
doi:10.1007/s00216-023-04617-7 .

Mutić, Tijana, Ognjanović, Miloš, Kodranov, Igor, Robić, Marko, Savić, Slađana, Krehula, Stjepko, Stanković, Dalibor M., "The influence of bismuth participation on the morphological and electrochemical characteristics of gallium oxide for the detection of adrenaline" in Analytical and Bioanalytical Chemistry, no. InPress (2023),
https://doi.org/10.1007/s00216-023-04617-7 . .

TY  - JOUR
AU  - Mutić, Tijana
AU  - Ognjanović, Miloš
AU  - Kodranov, Igor
AU  - Robić, Marko
AU  - Savić, Slađana
AU  - Krehula, Stjepko
AU  - Stanković, Dalibor M.
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10855
AB  - Author Tijana Mutić should be afliated to afliation 4.
Afliation 4 should be added: Faculty of Pharmacy University of Belgrade – Department of Analytical Chemistry, Vojvode Stepe 450, 11,221 Belgrade, Serbia
T2  - Analytical and Bioanalytical Chemistry
T1  - Correction to: The influence of bismuth participation on the morphological and electrochemical characteristics of gallium oxide for the detection of adrenaline
DO  - 10.1007/s00216-023-04674-y
ER  - 

@article{
author = "Mutić, Tijana and Ognjanović, Miloš and Kodranov, Igor and Robić, Marko and Savić, Slađana and Krehula, Stjepko and Stanković, Dalibor M.",
year = "2023",
abstract = "Author Tijana Mutić should be afliated to afliation 4.
Afliation 4 should be added: Faculty of Pharmacy University of Belgrade – Department of Analytical Chemistry, Vojvode Stepe 450, 11,221 Belgrade, Serbia",
journal = "Analytical and Bioanalytical Chemistry",
title = "Correction to: The influence of bismuth participation on the morphological and electrochemical characteristics of gallium oxide for the detection of adrenaline",
doi = "10.1007/s00216-023-04674-y"
}

Mutić, T., Ognjanović, M., Kodranov, I., Robić, M., Savić, S., Krehula, S.,& Stanković, D. M.. (2023). Correction to: The influence of bismuth participation on the morphological and electrochemical characteristics of gallium oxide for the detection of adrenaline. in Analytical and Bioanalytical Chemistry.
https://doi.org/10.1007/s00216-023-04674-y

Mutić T, Ognjanović M, Kodranov I, Robić M, Savić S, Krehula S, Stanković DM. Correction to: The influence of bismuth participation on the morphological and electrochemical characteristics of gallium oxide for the detection of adrenaline. in Analytical and Bioanalytical Chemistry. 2023;.
doi:10.1007/s00216-023-04674-y .

Mutić, Tijana, Ognjanović, Miloš, Kodranov, Igor, Robić, Marko, Savić, Slađana, Krehula, Stjepko, Stanković, Dalibor M., "Correction to: The influence of bismuth participation on the morphological and electrochemical characteristics of gallium oxide for the detection of adrenaline" in Analytical and Bioanalytical Chemistry (2023),
https://doi.org/10.1007/s00216-023-04674-y . .

TY  - JOUR
AU  - Milikić, Jadranka
AU  - Knežević, Sara
AU  - Ognjanović, Miloš
AU  - Stanković, Dalibor M.
AU  - Rakočević, Lazar
AU  - Šljukić, Biljana
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10860
AB  - Porous cobalt (III) oxide (Co3O4) and mixed cobalt (III) oxide - tin oxide (Co3O4/SnO2) were prepared by a novel template-based hydrothermal method resulting in their spherical morphology as confirmed by thorough physico-chemical characterisation. Two oxides were systematically examined as bifunctional electrocatalysts for oxygen reduction (ORR) and evolution (OER) reaction in alkaline media by voltammetry with rotating disk electrode, electrochemical impedance spectroscopy, and chronoamperometry. Low-cost Co3O4 and Co3O4/SnO2 electrocatalysts showed excellent ORR performance with low onset and half-wave potential, low Tafel slope, and the number of exchange electrons near 4, comparable to the commercial Pt/C electrocatalyst. Low OER onset potential of 1.52 and 1.57 V was observed for Co3O4 and Co3O4/SnO2, respectively, with low charge transfer resistance under anodic polarization conditions. Finally, to test bifunctional activity and durability of the two electrocatalyst, switch OER/ORR test was carried out.
T2  - International Journal of Hydrogen Energy
T1  - Template-based synthesis of Co3O4 and Co3O4/SnO2 bifunctional catalysts with enhanced electrocatalytic properties for reversible oxygen evolution and reduction reaction
IS  - InPress
DO  - 10.1016/j.ijhydene.2023.03.433
ER  - 

@article{
author = "Milikić, Jadranka and Knežević, Sara and Ognjanović, Miloš and Stanković, Dalibor M. and Rakočević, Lazar and Šljukić, Biljana",
year = "2023",
abstract = "Porous cobalt (III) oxide (Co3O4) and mixed cobalt (III) oxide - tin oxide (Co3O4/SnO2) were prepared by a novel template-based hydrothermal method resulting in their spherical morphology as confirmed by thorough physico-chemical characterisation. Two oxides were systematically examined as bifunctional electrocatalysts for oxygen reduction (ORR) and evolution (OER) reaction in alkaline media by voltammetry with rotating disk electrode, electrochemical impedance spectroscopy, and chronoamperometry. Low-cost Co3O4 and Co3O4/SnO2 electrocatalysts showed excellent ORR performance with low onset and half-wave potential, low Tafel slope, and the number of exchange electrons near 4, comparable to the commercial Pt/C electrocatalyst. Low OER onset potential of 1.52 and 1.57 V was observed for Co3O4 and Co3O4/SnO2, respectively, with low charge transfer resistance under anodic polarization conditions. Finally, to test bifunctional activity and durability of the two electrocatalyst, switch OER/ORR test was carried out.",
journal = "International Journal of Hydrogen Energy",
title = "Template-based synthesis of Co3O4 and Co3O4/SnO2 bifunctional catalysts with enhanced electrocatalytic properties for reversible oxygen evolution and reduction reaction",
number = "InPress",
doi = "10.1016/j.ijhydene.2023.03.433"
}

Milikić, J., Knežević, S., Ognjanović, M., Stanković, D. M., Rakočević, L.,& Šljukić, B.. (2023). Template-based synthesis of Co3O4 and Co3O4/SnO2 bifunctional catalysts with enhanced electrocatalytic properties for reversible oxygen evolution and reduction reaction. in International Journal of Hydrogen Energy(InPress).
https://doi.org/10.1016/j.ijhydene.2023.03.433

Milikić J, Knežević S, Ognjanović M, Stanković DM, Rakočević L, Šljukić B. Template-based synthesis of Co3O4 and Co3O4/SnO2 bifunctional catalysts with enhanced electrocatalytic properties for reversible oxygen evolution and reduction reaction. in International Journal of Hydrogen Energy. 2023;(InPress).
doi:10.1016/j.ijhydene.2023.03.433 .

Milikić, Jadranka, Knežević, Sara, Ognjanović, Miloš, Stanković, Dalibor M., Rakočević, Lazar, Šljukić, Biljana, "Template-based synthesis of Co3O4 and Co3O4/SnO2 bifunctional catalysts with enhanced electrocatalytic properties for reversible oxygen evolution and reduction reaction" in International Journal of Hydrogen Energy, no. InPress (2023),
https://doi.org/10.1016/j.ijhydene.2023.03.433 . .

TY  - JOUR
AU  - Vlahović, Filip
AU  - Ognjanović, Miloš
AU  - Đurđić, Slađana
AU  - Kukuruzar, Andrej
AU  - Antić, Bratislav
AU  - Dojčinović, Biljana
AU  - Stanković, Dalibor M.
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10919
AB  - We have set-up an electrochemical advanced oxidation process for ethidium bromide (1), based on the Eu-doped MnWO4 (Eu:MnWO4), obtained through a template-driven synthesis, along with developing a suitable monitoring method. Under galvanostatic conditions, Eu:MnWO4-coated graphite electrode serves as anode, applicable for removal of 1. To go further and augment the catalytic method, we have applied a modified carbon paste electrode for the monitoring of 1 with the limit of detection (LOD) of 54 nM. Enhancement of the hydrogen evolution reaction is an indication of electrocatalytic properties of the material, whereby developed method emerges as a candidate for straightforward application in electrochemical advanced oxidation processes (EAOPs). We have enriched experimental data with theoretical insights, provided by Density Functional Theory (DFT), and proposed oxidation mechanism of 1. Based on obtained results, we propose the new nanomaterial as a potent electrochemical modifier, suitable for catalytic treatment and process monitoring of the 1-polluted waters.
T2  - Applied Catalysis B: Environmental
T1  - Design of an ethidium bromide control circuit supported by deep theoretical insight
VL  - 334
SP  - 122819
DO  - 10.1016/j.apcatb.2023.122819
ER  - 

@article{
author = "Vlahović, Filip and Ognjanović, Miloš and Đurđić, Slađana and Kukuruzar, Andrej and Antić, Bratislav and Dojčinović, Biljana and Stanković, Dalibor M.",
year = "2023",
abstract = "We have set-up an electrochemical advanced oxidation process for ethidium bromide (1), based on the Eu-doped MnWO4 (Eu:MnWO4), obtained through a template-driven synthesis, along with developing a suitable monitoring method. Under galvanostatic conditions, Eu:MnWO4-coated graphite electrode serves as anode, applicable for removal of 1. To go further and augment the catalytic method, we have applied a modified carbon paste electrode for the monitoring of 1 with the limit of detection (LOD) of 54 nM. Enhancement of the hydrogen evolution reaction is an indication of electrocatalytic properties of the material, whereby developed method emerges as a candidate for straightforward application in electrochemical advanced oxidation processes (EAOPs). We have enriched experimental data with theoretical insights, provided by Density Functional Theory (DFT), and proposed oxidation mechanism of 1. Based on obtained results, we propose the new nanomaterial as a potent electrochemical modifier, suitable for catalytic treatment and process monitoring of the 1-polluted waters.",
journal = "Applied Catalysis B: Environmental",
title = "Design of an ethidium bromide control circuit supported by deep theoretical insight",
volume = "334",
pages = "122819",
doi = "10.1016/j.apcatb.2023.122819"
}

Vlahović, F., Ognjanović, M., Đurđić, S., Kukuruzar, A., Antić, B., Dojčinović, B.,& Stanković, D. M.. (2023). Design of an ethidium bromide control circuit supported by deep theoretical insight. in Applied Catalysis B: Environmental, 334, 122819.
https://doi.org/10.1016/j.apcatb.2023.122819

Vlahović F, Ognjanović M, Đurđić S, Kukuruzar A, Antić B, Dojčinović B, Stanković DM. Design of an ethidium bromide control circuit supported by deep theoretical insight. in Applied Catalysis B: Environmental. 2023;334:122819.
doi:10.1016/j.apcatb.2023.122819 .

Vlahović, Filip, Ognjanović, Miloš, Đurđić, Slađana, Kukuruzar, Andrej, Antić, Bratislav, Dojčinović, Biljana, Stanković, Dalibor M., "Design of an ethidium bromide control circuit supported by deep theoretical insight" in Applied Catalysis B: Environmental, 334 (2023):122819,
https://doi.org/10.1016/j.apcatb.2023.122819 . .

TY  - JOUR
AU  - Anđelković, Ljubica
AU  - Šuljagić, Marija
AU  - Mirković, Miljana
AU  - Pavlović, Vera P.
AU  - Petronijević, Ivan
AU  - Stanković, Dalibor M.
AU  - Jeremić, Dejan
AU  - Uskoković, Vuk
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10935
AB  - The combination of an intense absorption of visible light and p-type semiconducting nature makes spinel cobalt oxide (Co3O4) a very attractive material for various optoelectronic applications. However, the traditional methods for its synthesis have been either time- and energy-consuming or relying on toxic chemicals. To solve this issue, a simple, facile, and eco-friendly method of synthesis was successfully developed to obtain spinel Co3O4 nanoparticles. The novel method for obtaining pure and monophasic Co3O4 reported here is based on the thermal decomposition of hexaaquacobalt(II) D-camphor10-sulfonate at 900 °C. This fast solid-state synthesis route overcomes the disadvantages of many combustion methods, most critically by avoiding the use of toxic organic solvents. The synthesized material was subjected to a detailed characterization to assess its potential for use as a nanocatalyst. The band gap measurements indicated the presence of two band gaps, one at 2.10 eV and another at 1.22 eV, confirming the purity and semiconducting properties of the sample. The electrochemical studies demonstrated a significant enhancement in the electron transfer kinetics with the addition of the synthesized Co3O4 to the carbon-paste electrode, leading to an enhanced electrocatalytic performance. These prominent functional properties, suitable for a wide range of technological applications, pave way for the implementation of the reported method for the synthesis of Co3O4 on a larger industrial scale. © 2023 Elsevier Ltd and Techna Group S.r.l.
T2  - Ceramics International
T1  - Semiconducting cobalt oxide nanocatalyst obtained through an eco-friendly thermal decomposition
IS  - InPress
DO  - 10.1016/j.ceramint.2023.04.182
ER  - 

@article{
author = "Anđelković, Ljubica and Šuljagić, Marija and Mirković, Miljana and Pavlović, Vera P. and Petronijević, Ivan and Stanković, Dalibor M. and Jeremić, Dejan and Uskoković, Vuk",
year = "2023",
abstract = "The combination of an intense absorption of visible light and p-type semiconducting nature makes spinel cobalt oxide (Co3O4) a very attractive material for various optoelectronic applications. However, the traditional methods for its synthesis have been either time- and energy-consuming or relying on toxic chemicals. To solve this issue, a simple, facile, and eco-friendly method of synthesis was successfully developed to obtain spinel Co3O4 nanoparticles. The novel method for obtaining pure and monophasic Co3O4 reported here is based on the thermal decomposition of hexaaquacobalt(II) D-camphor10-sulfonate at 900 °C. This fast solid-state synthesis route overcomes the disadvantages of many combustion methods, most critically by avoiding the use of toxic organic solvents. The synthesized material was subjected to a detailed characterization to assess its potential for use as a nanocatalyst. The band gap measurements indicated the presence of two band gaps, one at 2.10 eV and another at 1.22 eV, confirming the purity and semiconducting properties of the sample. The electrochemical studies demonstrated a significant enhancement in the electron transfer kinetics with the addition of the synthesized Co3O4 to the carbon-paste electrode, leading to an enhanced electrocatalytic performance. These prominent functional properties, suitable for a wide range of technological applications, pave way for the implementation of the reported method for the synthesis of Co3O4 on a larger industrial scale. © 2023 Elsevier Ltd and Techna Group S.r.l.",
journal = "Ceramics International",
title = "Semiconducting cobalt oxide nanocatalyst obtained through an eco-friendly thermal decomposition",
number = "InPress",
doi = "10.1016/j.ceramint.2023.04.182"
}

Anđelković, L., Šuljagić, M., Mirković, M., Pavlović, V. P., Petronijević, I., Stanković, D. M., Jeremić, D.,& Uskoković, V.. (2023). Semiconducting cobalt oxide nanocatalyst obtained through an eco-friendly thermal decomposition. in Ceramics International(InPress).
https://doi.org/10.1016/j.ceramint.2023.04.182

Anđelković L, Šuljagić M, Mirković M, Pavlović VP, Petronijević I, Stanković DM, Jeremić D, Uskoković V. Semiconducting cobalt oxide nanocatalyst obtained through an eco-friendly thermal decomposition. in Ceramics International. 2023;(InPress).
doi:10.1016/j.ceramint.2023.04.182 .

Anđelković, Ljubica, Šuljagić, Marija, Mirković, Miljana, Pavlović, Vera P., Petronijević, Ivan, Stanković, Dalibor M., Jeremić, Dejan, Uskoković, Vuk, "Semiconducting cobalt oxide nanocatalyst obtained through an eco-friendly thermal decomposition" in Ceramics International, no. InPress (2023),
https://doi.org/10.1016/j.ceramint.2023.04.182 . .

TY  - JOUR
AU  - Šuránek, Matej
AU  - Melichová, Zuzana
AU  - Mirković, Miljana M.
AU  - Ivanović, Marija M.
AU  - Pavlović, Vladimir B
AU  - Kljajević, Ljiljana M.
AU  - Nenadović, Snežana S.
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10735
AB  - The study of Cu(II) from aqueous solutions using the adsorption process on synthetically modified geopolymers was performed under static conditions. Three geopolymers (based on metaphase of Serbian clay, metaphase of German clay and metaphase of German clay plus 10% of carbon cloth) were used. The geopolymers were made by condensing a mixture of metaphases and alkali activator solution at a fixed ratio at room temperature and then at a temperature of 60 °C in a dry oven. Then, the geopolymer samples were pre-crashed to a fixed-radius size. Their properties were characterized by X-ray diffractometry (XRD), Diffuse Reflectance Infrared Fourier Transform (DRIFT) analysis and Scanning Electron Microscopy (SEM) with Energy Dispersive Spectroscopy (EDS). Adsorption experiments were carried out under batch process as a function of the dose, concentration of metal, and contact time. The uptake of Cu(II) was rapid, and it increased with increasing metal concentration. The sorption percentage decreased with increasing concentration of Cu(II). The equilibrium adsorption capacity of geopolymers was measured and extrapolated using more isotherms. The data fit very well the linear Langmuir isotherm model. The pseudo-second-order kinetic model can well describe the adsorption behavior of Cu(II) ions with geopolymers samples. These results show that used geopolymers hold great potential to remove Cu(II) from industrial wastewater.
T2  - Sustainability
T1  - The Study of Cu(II) Adsorption onto Synthetically Modified Geopolymers
VL  - 15
IS  - 4
SP  - 2869
DO  - 10.3390/su15042869
ER  - 

@article{
author = "Šuránek, Matej and Melichová, Zuzana and Mirković, Miljana M. and Ivanović, Marija M. and Pavlović, Vladimir B and Kljajević, Ljiljana M. and Nenadović, Snežana S.",
year = "2023",
abstract = "The study of Cu(II) from aqueous solutions using the adsorption process on synthetically modified geopolymers was performed under static conditions. Three geopolymers (based on metaphase of Serbian clay, metaphase of German clay and metaphase of German clay plus 10% of carbon cloth) were used. The geopolymers were made by condensing a mixture of metaphases and alkali activator solution at a fixed ratio at room temperature and then at a temperature of 60 °C in a dry oven. Then, the geopolymer samples were pre-crashed to a fixed-radius size. Their properties were characterized by X-ray diffractometry (XRD), Diffuse Reflectance Infrared Fourier Transform (DRIFT) analysis and Scanning Electron Microscopy (SEM) with Energy Dispersive Spectroscopy (EDS). Adsorption experiments were carried out under batch process as a function of the dose, concentration of metal, and contact time. The uptake of Cu(II) was rapid, and it increased with increasing metal concentration. The sorption percentage decreased with increasing concentration of Cu(II). The equilibrium adsorption capacity of geopolymers was measured and extrapolated using more isotherms. The data fit very well the linear Langmuir isotherm model. The pseudo-second-order kinetic model can well describe the adsorption behavior of Cu(II) ions with geopolymers samples. These results show that used geopolymers hold great potential to remove Cu(II) from industrial wastewater.",
journal = "Sustainability",
title = "The Study of Cu(II) Adsorption onto Synthetically Modified Geopolymers",
volume = "15",
number = "4",
pages = "2869",
doi = "10.3390/su15042869"
}

Šuránek, M., Melichová, Z., Mirković, M. M., Ivanović, M. M., Pavlović, V. B., Kljajević, L. M.,& Nenadović, S. S.. (2023). The Study of Cu(II) Adsorption onto Synthetically Modified Geopolymers. in Sustainability, 15(4), 2869.
https://doi.org/10.3390/su15042869

Šuránek M, Melichová Z, Mirković MM, Ivanović MM, Pavlović VB, Kljajević LM, Nenadović SS. The Study of Cu(II) Adsorption onto Synthetically Modified Geopolymers. in Sustainability. 2023;15(4):2869.
doi:10.3390/su15042869 .

Šuránek, Matej, Melichová, Zuzana, Mirković, Miljana M., Ivanović, Marija M., Pavlović, Vladimir B, Kljajević, Ljiljana M., Nenadović, Snežana S., "The Study of Cu(II) Adsorption onto Synthetically Modified Geopolymers" in Sustainability, 15, no. 4 (2023):2869,
https://doi.org/10.3390/su15042869 . .

TY  - JOUR
AU  - Validžić, Ivana Lj.
AU  - Popović, Maja
AU  - Potočnik, Jelena
AU  - Graf, Christina
AU  - Joschko, Maximilian
AU  - Kuznetsova, Yulia A.
AU  - Zatsepin, Dmitry A.
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10750
AB  - Amorphous, non-doped, and copper- and selenium-doped Sb2S3 nanoparticles were synthesized by a hot-injection method. Zinc-doped Sb2S3 nanoparticles were prepared for the first time using the same approach. Electron microscopy revealed that spherical nanoparticles of 1–4 nanometers aggregated into larger spherical clusters. Introducing dopants into the Sb2S3 structure neither influenced the samples’ spherical morphology nor their sizes. The presence of the dopants (Cu, Se, or Zn) was confirmed by energy dispersive X-ray (EDX) and, in the case of Zn, also by inductively coupled plasma-mass spectrometry (ICP-MS). The X-ray powder diffraction (XRPD) patterns of the non-doped and doped samples imply an amorphous structure. Crystalline Zn-doped Sb2S3 revealed defined peaks from only the Sb2S3 phase, indicating successful doping. Diffuse reflectance spectroscopy (DRS) revealed high optical bandgap energies (2.03–2.12 eV) compared to the values (1.6–1.7 eV) for large non-doped and doped particles obtained at 240 °C, which might be attributed to a quantum size effect. X-ray photoelectron spectroscopy (XPS) revealed a phase without any impurities for the undoped and characteristic peaks for copper, selenium, and zinc Auger for the doped samples. XPS valence band confirm for the Zn-doped particles a shift towards lower binding energy compared to the non-doped samples, indicating successful doping. Photoluminescence (PL) measurements show that embedding Zn into the Sb2S3 host lattice suppresses the wide luminescence band related to intrinsic vacancy defects. Narrow peaks at 1.7–2.4 eV were found to be associated with singlet excitons. The energy dependence of the light emission on the synthesized nanoparticles’ size suggests quantum confinement. © 2023, The Author(s), under exclusive licence to Springer Nature B.V.
T2  - Journal of Nanoparticle Research
T1  - Amorphous non-doped and Se-, Cu-, and Zn-doped Sb2S3 nanoparticles prepared by a hot-injection method: bandgap tuning and possible observation of the quantum size effect
VL  - 25
IS  - 3
SP  - 48
DO  - 10.1007/s11051-023-05695-5
ER  - 

@article{
author = "Validžić, Ivana Lj. and Popović, Maja and Potočnik, Jelena and Graf, Christina and Joschko, Maximilian and Kuznetsova, Yulia A. and Zatsepin, Dmitry A.",
year = "2023",
abstract = "Amorphous, non-doped, and copper- and selenium-doped Sb2S3 nanoparticles were synthesized by a hot-injection method. Zinc-doped Sb2S3 nanoparticles were prepared for the first time using the same approach. Electron microscopy revealed that spherical nanoparticles of 1–4 nanometers aggregated into larger spherical clusters. Introducing dopants into the Sb2S3 structure neither influenced the samples’ spherical morphology nor their sizes. The presence of the dopants (Cu, Se, or Zn) was confirmed by energy dispersive X-ray (EDX) and, in the case of Zn, also by inductively coupled plasma-mass spectrometry (ICP-MS). The X-ray powder diffraction (XRPD) patterns of the non-doped and doped samples imply an amorphous structure. Crystalline Zn-doped Sb2S3 revealed defined peaks from only the Sb2S3 phase, indicating successful doping. Diffuse reflectance spectroscopy (DRS) revealed high optical bandgap energies (2.03–2.12 eV) compared to the values (1.6–1.7 eV) for large non-doped and doped particles obtained at 240 °C, which might be attributed to a quantum size effect. X-ray photoelectron spectroscopy (XPS) revealed a phase without any impurities for the undoped and characteristic peaks for copper, selenium, and zinc Auger for the doped samples. XPS valence band confirm for the Zn-doped particles a shift towards lower binding energy compared to the non-doped samples, indicating successful doping. Photoluminescence (PL) measurements show that embedding Zn into the Sb2S3 host lattice suppresses the wide luminescence band related to intrinsic vacancy defects. Narrow peaks at 1.7–2.4 eV were found to be associated with singlet excitons. The energy dependence of the light emission on the synthesized nanoparticles’ size suggests quantum confinement. © 2023, The Author(s), under exclusive licence to Springer Nature B.V.",
journal = "Journal of Nanoparticle Research",
title = "Amorphous non-doped and Se-, Cu-, and Zn-doped Sb2S3 nanoparticles prepared by a hot-injection method: bandgap tuning and possible observation of the quantum size effect",
volume = "25",
number = "3",
pages = "48",
doi = "10.1007/s11051-023-05695-5"
}

Validžić, I. Lj., Popović, M., Potočnik, J., Graf, C., Joschko, M., Kuznetsova, Y. A.,& Zatsepin, D. A.. (2023). Amorphous non-doped and Se-, Cu-, and Zn-doped Sb2S3 nanoparticles prepared by a hot-injection method: bandgap tuning and possible observation of the quantum size effect. in Journal of Nanoparticle Research, 25(3), 48.
https://doi.org/10.1007/s11051-023-05695-5

Validžić IL, Popović M, Potočnik J, Graf C, Joschko M, Kuznetsova YA, Zatsepin DA. Amorphous non-doped and Se-, Cu-, and Zn-doped Sb2S3 nanoparticles prepared by a hot-injection method: bandgap tuning and possible observation of the quantum size effect. in Journal of Nanoparticle Research. 2023;25(3):48.
doi:10.1007/s11051-023-05695-5 .

Validžić, Ivana Lj., Popović, Maja, Potočnik, Jelena, Graf, Christina, Joschko, Maximilian, Kuznetsova, Yulia A., Zatsepin, Dmitry A., "Amorphous non-doped and Se-, Cu-, and Zn-doped Sb2S3 nanoparticles prepared by a hot-injection method: bandgap tuning and possible observation of the quantum size effect" in Journal of Nanoparticle Research, 25, no. 3 (2023):48,
https://doi.org/10.1007/s11051-023-05695-5 . .

TY  - JOUR
AU  - Zagorac, Jelena B.
AU  - Zagorac, Dejan
AU  - Šrot, Vesna
AU  - Ranđelović, Marjan
AU  - Pejić, Milan
AU  - van Aken, Peter A.
AU  - Matović, Branko
AU  - Schön, Christian J.
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10592
AB  - ZnO/ZnS core/shell nanostructures, which are studied for diverse possible applications, ranging from semiconductors, photovoltaics, and light-emitting diodes (LED), to solar cells, infrared detectors, and thermoelectrics, were synthesized and characterized by XRD, HR-(S)TEM, and analytical TEM (EDX and EELS). Moreover, band-gap measurements of the ZnO/ZnS core/shell nanostructures have been performed using UV/Vis DRS. The experimental results were combined with theoretical modeling of ZnO/ZnS (hetero)structures and band structure calculations for ZnO/ZnS systems, yielding more insights into the properties of the nanoparticles. The ab initio calculations were performed using hybrid PBE0 and HSE06 functionals. The synthesized and characterized ZnO/ZnS core/shell materials show a unique three-phase composition, where the ZnO phase is dominant in the core region and, interestingly, the auxiliary ZnS compound occurs in two phases as wurtzite and sphalerite in the shell region. Moreover, theoretical ab initio calculations show advanced semiconducting properties and possible band-gap tuning in such ZnO/ZnS structures.
T2  - Materials
T1  - Synthesis, Characterization, and Electronic Properties of ZnO/ZnS Core/Shell Nanostructures Investigated Using a Multidisciplinary Approach
VL  - 16
IS  - 1
SP  - 326
DO  - 10.3390/ma16010326
ER  - 

@article{
author = "Zagorac, Jelena B. and Zagorac, Dejan and Šrot, Vesna and Ranđelović, Marjan and Pejić, Milan and van Aken, Peter A. and Matović, Branko and Schön, Christian J.",
year = "2023",
abstract = "ZnO/ZnS core/shell nanostructures, which are studied for diverse possible applications, ranging from semiconductors, photovoltaics, and light-emitting diodes (LED), to solar cells, infrared detectors, and thermoelectrics, were synthesized and characterized by XRD, HR-(S)TEM, and analytical TEM (EDX and EELS). Moreover, band-gap measurements of the ZnO/ZnS core/shell nanostructures have been performed using UV/Vis DRS. The experimental results were combined with theoretical modeling of ZnO/ZnS (hetero)structures and band structure calculations for ZnO/ZnS systems, yielding more insights into the properties of the nanoparticles. The ab initio calculations were performed using hybrid PBE0 and HSE06 functionals. The synthesized and characterized ZnO/ZnS core/shell materials show a unique three-phase composition, where the ZnO phase is dominant in the core region and, interestingly, the auxiliary ZnS compound occurs in two phases as wurtzite and sphalerite in the shell region. Moreover, theoretical ab initio calculations show advanced semiconducting properties and possible band-gap tuning in such ZnO/ZnS structures.",
journal = "Materials",
title = "Synthesis, Characterization, and Electronic Properties of ZnO/ZnS Core/Shell Nanostructures Investigated Using a Multidisciplinary Approach",
volume = "16",
number = "1",
pages = "326",
doi = "10.3390/ma16010326"
}

Zagorac, J. B., Zagorac, D., Šrot, V., Ranđelović, M., Pejić, M., van Aken, P. A., Matović, B.,& Schön, C. J.. (2023). Synthesis, Characterization, and Electronic Properties of ZnO/ZnS Core/Shell Nanostructures Investigated Using a Multidisciplinary Approach. in Materials, 16(1), 326.
https://doi.org/10.3390/ma16010326

Zagorac JB, Zagorac D, Šrot V, Ranđelović M, Pejić M, van Aken PA, Matović B, Schön CJ. Synthesis, Characterization, and Electronic Properties of ZnO/ZnS Core/Shell Nanostructures Investigated Using a Multidisciplinary Approach. in Materials. 2023;16(1):326.
doi:10.3390/ma16010326 .

Zagorac, Jelena B., Zagorac, Dejan, Šrot, Vesna, Ranđelović, Marjan, Pejić, Milan, van Aken, Peter A., Matović, Branko, Schön, Christian J., "Synthesis, Characterization, and Electronic Properties of ZnO/ZnS Core/Shell Nanostructures Investigated Using a Multidisciplinary Approach" in Materials, 16, no. 1 (2023):326,
https://doi.org/10.3390/ma16010326 . .

TY  - JOUR
AU  - Matović, Branko
AU  - Maletaškić, Jelena
AU  - Maksimović, Vesna
AU  - Dimitrijević, Stevan P.
AU  - Todorović, Bratislav
AU  - Pejić, Milan
AU  - Zagorac, Dejan
AU  - Zagorac, Jelena B.
AU  - Zeng, Yu-Ping
AU  - Cvijović-Alagić, Ivana
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10697
AB  - Multicomponent oxide with pyrochlore structure (A2B2O7), containing 7 different A-site cations and 3 B-site cations in equiatomic amounts, was synthesized. Powders with nominal composition (La1/7Sm1/7Nd1/7Pr1/7Y1/7Gd1/7Yb1/7)2(Sn1/3Hf1/3Zr1/3)2O7 were fabricated through a reaction of metal nitrates (A-site) and metal chlorides (B-site) with sodium hydroxide during the solid state displacement reaction. Room temperature synthesis initially resulted in the obtainment of amorphous powders, which crystallized after subsequent calcination to form single crystalline compounds. Crystalline high-entropy ceramic powders formation took place at temperatures as low as 750 °C. During calcination, defective fluorite (F-A2B2O7) and crystal pyrochlore (Py-A2B2O7) structures coexist. A large number of cations induce the obtainment of stable high-entropy pyrochlores. Results showed that sintering at 1650 °C lead to pure crystalline single-phase pyrochlore formation. High-density ceramic, free of additives, was obtained after powders were compacted and subjected to pressureless sintering at 1650 °C. Multicomponent pyrochlore structure was investigated using the theoretical and experimental multi-methodological approach.
T2  - Boletin de la Sociedad Espanola de Ceramica y Vidrio
T1  - Multicomponent solid solution with pyrochlore structure
T1  - Solución sólida multicomponente con estructura de pirocloro
IS  - inPress
DO  - 10.1016/j.bsecv.2023.01.005
ER  - 

@article{
author = "Matović, Branko and Maletaškić, Jelena and Maksimović, Vesna and Dimitrijević, Stevan P. and Todorović, Bratislav and Pejić, Milan and Zagorac, Dejan and Zagorac, Jelena B. and Zeng, Yu-Ping and Cvijović-Alagić, Ivana",
year = "2023",
abstract = "Multicomponent oxide with pyrochlore structure (A2B2O7), containing 7 different A-site cations and 3 B-site cations in equiatomic amounts, was synthesized. Powders with nominal composition (La1/7Sm1/7Nd1/7Pr1/7Y1/7Gd1/7Yb1/7)2(Sn1/3Hf1/3Zr1/3)2O7 were fabricated through a reaction of metal nitrates (A-site) and metal chlorides (B-site) with sodium hydroxide during the solid state displacement reaction. Room temperature synthesis initially resulted in the obtainment of amorphous powders, which crystallized after subsequent calcination to form single crystalline compounds. Crystalline high-entropy ceramic powders formation took place at temperatures as low as 750 °C. During calcination, defective fluorite (F-A2B2O7) and crystal pyrochlore (Py-A2B2O7) structures coexist. A large number of cations induce the obtainment of stable high-entropy pyrochlores. Results showed that sintering at 1650 °C lead to pure crystalline single-phase pyrochlore formation. High-density ceramic, free of additives, was obtained after powders were compacted and subjected to pressureless sintering at 1650 °C. Multicomponent pyrochlore structure was investigated using the theoretical and experimental multi-methodological approach.",
journal = "Boletin de la Sociedad Espanola de Ceramica y Vidrio",
title = "Multicomponent solid solution with pyrochlore structure, Solución sólida multicomponente con estructura de pirocloro",
number = "inPress",
doi = "10.1016/j.bsecv.2023.01.005"
}

Matović, B., Maletaškić, J., Maksimović, V., Dimitrijević, S. P., Todorović, B., Pejić, M., Zagorac, D., Zagorac, J. B., Zeng, Y.,& Cvijović-Alagić, I.. (2023). Multicomponent solid solution with pyrochlore structure. in Boletin de la Sociedad Espanola de Ceramica y Vidrio(inPress).
https://doi.org/10.1016/j.bsecv.2023.01.005

Matović B, Maletaškić J, Maksimović V, Dimitrijević SP, Todorović B, Pejić M, Zagorac D, Zagorac JB, Zeng Y, Cvijović-Alagić I. Multicomponent solid solution with pyrochlore structure. in Boletin de la Sociedad Espanola de Ceramica y Vidrio. 2023;(inPress).
doi:10.1016/j.bsecv.2023.01.005 .

Matović, Branko, Maletaškić, Jelena, Maksimović, Vesna, Dimitrijević, Stevan P., Todorović, Bratislav, Pejić, Milan, Zagorac, Dejan, Zagorac, Jelena B., Zeng, Yu-Ping, Cvijović-Alagić, Ivana, "Multicomponent solid solution with pyrochlore structure" in Boletin de la Sociedad Espanola de Ceramica y Vidrio, no. inPress (2023),
https://doi.org/10.1016/j.bsecv.2023.01.005 . .

TY  - JOUR
AU  - Stamenković, Tijana
AU  - Radmilović, Nadežda
AU  - Prekajski-Đorđević, Marija D.
AU  - Rabasović, Mihailo
AU  - Dinić, Ivana
AU  - Tomić, Miloš
AU  - Lojpur, Vesna
AU  - Mančić, Lidija
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10499
AB  - Nanopowders of up-conversion SrGd2O4 orthorhombic (Pnma) phase co-doped with different Yb3+ (1, 2.5 and 5 at%) and constant Er3+ (0.5 at%) ions were successfully prepared via sol-gel assisted combustion. Rietveld refinement indicated unit cell lattice parameters increase with Yb3+ and Er3+ ions doping. Scanning transmission electron microscopy with corresponding energy-dispersive X-ray spectroscopy revealed that obtained powders are composed of agglomerated nanoparticles that have a uniform distribution of all constituting elements. Photoluminescence measurements implied intensification of the up-conversion (UC) emission in the visible part of spectrum with the increase of Yb3+ content, which is followed by a significant change in the green to red ratio. Two-photon UC processes are established as a result of Er3+ f-f electronic transitions: green emission at 523 and 551 nm (2H11/2, 4S3/2 → 4I15/2) as well as a red emission at 661 nm (4F9/2 → 4I15/2). The highest value of absolute quantum yield of 0.055% is determined for SrGd2O4 nanoparticles doped with 0.5 at% of Er3+ and co-doped with 5 at% of Yb3+ (λexc = 976 nm, power density 200 W/cm2).
T2  - Journal of Luminescence
T1  - Quantum yield and energy transfer in up-conversion SrGd2O4:Yb, Er nanoparticles obtained via sol-gel assisted combustion
VL  - 253
SP  - 119491
DO  - 10.1016/j.jlumin.2022.119491
ER  - 

@article{
author = "Stamenković, Tijana and Radmilović, Nadežda and Prekajski-Đorđević, Marija D. and Rabasović, Mihailo and Dinić, Ivana and Tomić, Miloš and Lojpur, Vesna and Mančić, Lidija",
year = "2023",
abstract = "Nanopowders of up-conversion SrGd2O4 orthorhombic (Pnma) phase co-doped with different Yb3+ (1, 2.5 and 5 at%) and constant Er3+ (0.5 at%) ions were successfully prepared via sol-gel assisted combustion. Rietveld refinement indicated unit cell lattice parameters increase with Yb3+ and Er3+ ions doping. Scanning transmission electron microscopy with corresponding energy-dispersive X-ray spectroscopy revealed that obtained powders are composed of agglomerated nanoparticles that have a uniform distribution of all constituting elements. Photoluminescence measurements implied intensification of the up-conversion (UC) emission in the visible part of spectrum with the increase of Yb3+ content, which is followed by a significant change in the green to red ratio. Two-photon UC processes are established as a result of Er3+ f-f electronic transitions: green emission at 523 and 551 nm (2H11/2, 4S3/2 → 4I15/2) as well as a red emission at 661 nm (4F9/2 → 4I15/2). The highest value of absolute quantum yield of 0.055% is determined for SrGd2O4 nanoparticles doped with 0.5 at% of Er3+ and co-doped with 5 at% of Yb3+ (λexc = 976 nm, power density 200 W/cm2).",
journal = "Journal of Luminescence",
title = "Quantum yield and energy transfer in up-conversion SrGd2O4:Yb, Er nanoparticles obtained via sol-gel assisted combustion",
volume = "253",
pages = "119491",
doi = "10.1016/j.jlumin.2022.119491"
}

Stamenković, T., Radmilović, N., Prekajski-Đorđević, M. D., Rabasović, M., Dinić, I., Tomić, M., Lojpur, V.,& Mančić, L.. (2023). Quantum yield and energy transfer in up-conversion SrGd2O4:Yb, Er nanoparticles obtained via sol-gel assisted combustion. in Journal of Luminescence, 253, 119491.
https://doi.org/10.1016/j.jlumin.2022.119491

Stamenković T, Radmilović N, Prekajski-Đorđević MD, Rabasović M, Dinić I, Tomić M, Lojpur V, Mančić L. Quantum yield and energy transfer in up-conversion SrGd2O4:Yb, Er nanoparticles obtained via sol-gel assisted combustion. in Journal of Luminescence. 2023;253:119491.
doi:10.1016/j.jlumin.2022.119491 .

Stamenković, Tijana, Radmilović, Nadežda, Prekajski-Đorđević, Marija D., Rabasović, Mihailo, Dinić, Ivana, Tomić, Miloš, Lojpur, Vesna, Mančić, Lidija, "Quantum yield and energy transfer in up-conversion SrGd2O4:Yb, Er nanoparticles obtained via sol-gel assisted combustion" in Journal of Luminescence, 253 (2023):119491,
https://doi.org/10.1016/j.jlumin.2022.119491 . .

TY  - JOUR
AU  - Romčević, Nebojša
AU  - Hadžić, Branka
AU  - Prekajski-Đorđević, Marija D.
AU  - Mihailović, Peđa
AU  - Ćurčić, Milica
AU  - Trajić, Jelena
AU  - Mitrić, Jelena
AU  - Romčević, Maja J.
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11027
AB  - The effect of laser (532 nm line of Verdi G) heating during the Raman measurements, on partial decomposition of Bi12SiO20 single crystal, was addressed in this study. The degree of decomposition directly depends on the power density and duration of the laser treatment, which are registered by the phonon Raman spectra. After laser treatment, AFM measurements register additional small spherical islands on the surface. Analysis performed on irradiated and unirradiated samples showed significant changes in transmission spectra, X-ray diffraction (XRD) pattern, Verdet constant, magneto-optical property, and absorption coefficient. The material obtained after laser irradiation can be described as specific nanocomposite consisting of bismuth oxide and silicon oxide-based nano-objects (dimensions below 15 nm in diameter), which are arranged in a matrix of Bi12SiO20.
T2  - Journal of Spectroscopy
T1  - Effect of Laser Heating on Partial Decomposition of Bi12SiO20 (BSO) Single Crystal: Raman Study
VL  - InPress
SP  - e5490018
DO  - 10.1155/2023/5490018
ER  - 

@article{
author = "Romčević, Nebojša and Hadžić, Branka and Prekajski-Đorđević, Marija D. and Mihailović, Peđa and Ćurčić, Milica and Trajić, Jelena and Mitrić, Jelena and Romčević, Maja J.",
year = "2023",
abstract = "The effect of laser (532 nm line of Verdi G) heating during the Raman measurements, on partial decomposition of Bi12SiO20 single crystal, was addressed in this study. The degree of decomposition directly depends on the power density and duration of the laser treatment, which are registered by the phonon Raman spectra. After laser treatment, AFM measurements register additional small spherical islands on the surface. Analysis performed on irradiated and unirradiated samples showed significant changes in transmission spectra, X-ray diffraction (XRD) pattern, Verdet constant, magneto-optical property, and absorption coefficient. The material obtained after laser irradiation can be described as specific nanocomposite consisting of bismuth oxide and silicon oxide-based nano-objects (dimensions below 15 nm in diameter), which are arranged in a matrix of Bi12SiO20.",
journal = "Journal of Spectroscopy",
title = "Effect of Laser Heating on Partial Decomposition of Bi12SiO20 (BSO) Single Crystal: Raman Study",
volume = "InPress",
pages = "e5490018",
doi = "10.1155/2023/5490018"
}

Romčević, N., Hadžić, B., Prekajski-Đorđević, M. D., Mihailović, P., Ćurčić, M., Trajić, J., Mitrić, J.,& Romčević, M. J.. (2023). Effect of Laser Heating on Partial Decomposition of Bi12SiO20 (BSO) Single Crystal: Raman Study. in Journal of Spectroscopy, InPress, e5490018.
https://doi.org/10.1155/2023/5490018

Romčević N, Hadžić B, Prekajski-Đorđević MD, Mihailović P, Ćurčić M, Trajić J, Mitrić J, Romčević MJ. Effect of Laser Heating on Partial Decomposition of Bi12SiO20 (BSO) Single Crystal: Raman Study. in Journal of Spectroscopy. 2023;InPress:e5490018.
doi:10.1155/2023/5490018 .

Romčević, Nebojša, Hadžić, Branka, Prekajski-Đorđević, Marija D., Mihailović, Peđa, Ćurčić, Milica, Trajić, Jelena, Mitrić, Jelena, Romčević, Maja J., "Effect of Laser Heating on Partial Decomposition of Bi12SiO20 (BSO) Single Crystal: Raman Study" in Journal of Spectroscopy, InPress (2023):e5490018,
https://doi.org/10.1155/2023/5490018 . .