TY  - JOUR
AU  - Stepić, Katarina
AU  - Ljupković, Radomir
AU  - Zarubica, Aleksandra
AU  - Đorđijevski, Stefan
AU  - Matović, Branko
AU  - Krstić, Jugoslav
AU  - Bojić, Aleksandar
PY  - 2022
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/5482
AB  - In this research composite based on zirconia and graphite was synthesized using the sol-gel method. Aim of this research is to activate and increase the photocatalytic activity of ZrO2 by combining with graphite-based material. Our results show that we obtained material that can remove both cationic and anionic dyes by sorption and photocatalytic processes. Obtained composite is very effective in sorption of RB19 with up to 100% removal. Photocatalytic activity of composite is higher than pristine GO and goes up to 100% for RB19 degradation and about 50% degradation of MB. These results are promising and present an excellent base for further research.
PB  - Universitatea Babes-Bolyai, Catedra de Filosofie Sistematica
T2  - Studia Universitatis Babes-Bolyai Chemia
T1  - Novel composite based on zirconia and graphite. First results of application for synthetic dyes removal
VL  - 67
IS  - 2
SP  - 23
EP  - 43
DO  - 10.24193/subbchem.2022.2.02
ER  - 

@article{
author = "Stepić, Katarina and Ljupković, Radomir and Zarubica, Aleksandra and Đorđijevski, Stefan and Matović, Branko and Krstić, Jugoslav and Bojić, Aleksandar",
year = "2022",
abstract = "In this research composite based on zirconia and graphite was synthesized using the sol-gel method. Aim of this research is to activate and increase the photocatalytic activity of ZrO2 by combining with graphite-based material. Our results show that we obtained material that can remove both cationic and anionic dyes by sorption and photocatalytic processes. Obtained composite is very effective in sorption of RB19 with up to 100% removal. Photocatalytic activity of composite is higher than pristine GO and goes up to 100% for RB19 degradation and about 50% degradation of MB. These results are promising and present an excellent base for further research.",
publisher = "Universitatea Babes-Bolyai, Catedra de Filosofie Sistematica",
journal = "Studia Universitatis Babes-Bolyai Chemia",
title = "Novel composite based on zirconia and graphite. First results of application for synthetic dyes removal",
volume = "67",
number = "2",
pages = "23-43",
doi = "10.24193/subbchem.2022.2.02"
}

Stepić, K., Ljupković, R., Zarubica, A., Đorđijevski, S., Matović, B., Krstić, J.,& Bojić, A.. (2022). Novel composite based on zirconia and graphite. First results of application for synthetic dyes removal. in Studia Universitatis Babes-Bolyai Chemia
Universitatea Babes-Bolyai, Catedra de Filosofie Sistematica., 67(2), 23-43.
https://doi.org/10.24193/subbchem.2022.2.02

Stepić K, Ljupković R, Zarubica A, Đorđijevski S, Matović B, Krstić J, Bojić A. Novel composite based on zirconia and graphite. First results of application for synthetic dyes removal. in Studia Universitatis Babes-Bolyai Chemia. 2022;67(2):23-43.
doi:10.24193/subbchem.2022.2.02 .

Stepić, Katarina, Ljupković, Radomir, Zarubica, Aleksandra, Đorđijevski, Stefan, Matović, Branko, Krstić, Jugoslav, Bojić, Aleksandar, "Novel composite based on zirconia and graphite. First results of application for synthetic dyes removal" in Studia Universitatis Babes-Bolyai Chemia, 67, no. 2 (2022):23-43,
https://doi.org/10.24193/subbchem.2022.2.02 . .

TY  - JOUR
AU  - Zarubica, Aleksandra
AU  - Krstić, Jugoslav
AU  - Popović, Dejan
AU  - Krstić, Aleksandra
AU  - Ljupković, Radomir
AU  - Ranđelović, Marjan
AU  - Matović, Branko
PY  - 2021
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/4802
AB  - New binary catalytic systems based on sulphated zirconia-alumina were synthesized by controlled hydrolysis of alkoxides using relative molar ratios of constituents 1:1, 1:2 and 1:3 in favour of zirconia. The obtained differences in the final catalytic material’s properties may be related to organic precursor memory effect, the applied calcinations temperatures and used alumina contents. The addition of alumina to zirconia affected the structural and surface properties stabilizing bare zirconia by means of slower phase transformation of tetragonal zirconia crystal phase into monoclinic one, further resulting in smaller crystallites sizes and higher surface density of acidic function (sulphates). The best alumina impact on physico-chemical properties was achieved when the highest amount of alumina (e.g. 50%) and lower calcination temperature (500°C) were used, causing relatively high steady-state activity in isomerization of n-hexane at reaction temperature 250 °C. On the other hand, higher calcination temperature (600 °C) played a role in the genesis of greater sulphate density. Catalytic activity and selectivity are expressed as a complex synergistic function of relative density of acid sites together with positive status of other optimized physico-chemical properties of the catalytic material (by activation and calcination temperatures).
PB  - Novi Sad : University of Novi Sad, Faculty of Technology
T2  - Processing and Application of Ceramics
T1  - Influence of alumina addition on structural and catalytic properties of sulphated zirconia in isomerization of n-hexane
VL  - 15
IS  - 2
SP  - 136
DO  - 10.2298/PAC2102111Z
ER  - 

@article{
author = "Zarubica, Aleksandra and Krstić, Jugoslav and Popović, Dejan and Krstić, Aleksandra and Ljupković, Radomir and Ranđelović, Marjan and Matović, Branko",
year = "2021",
abstract = "New binary catalytic systems based on sulphated zirconia-alumina were synthesized by controlled hydrolysis of alkoxides using relative molar ratios of constituents 1:1, 1:2 and 1:3 in favour of zirconia. The obtained differences in the final catalytic material’s properties may be related to organic precursor memory effect, the applied calcinations temperatures and used alumina contents. The addition of alumina to zirconia affected the structural and surface properties stabilizing bare zirconia by means of slower phase transformation of tetragonal zirconia crystal phase into monoclinic one, further resulting in smaller crystallites sizes and higher surface density of acidic function (sulphates). The best alumina impact on physico-chemical properties was achieved when the highest amount of alumina (e.g. 50%) and lower calcination temperature (500°C) were used, causing relatively high steady-state activity in isomerization of n-hexane at reaction temperature 250 °C. On the other hand, higher calcination temperature (600 °C) played a role in the genesis of greater sulphate density. Catalytic activity and selectivity are expressed as a complex synergistic function of relative density of acid sites together with positive status of other optimized physico-chemical properties of the catalytic material (by activation and calcination temperatures).",
publisher = "Novi Sad : University of Novi Sad, Faculty of Technology",
journal = "Processing and Application of Ceramics",
title = "Influence of alumina addition on structural and catalytic properties of sulphated zirconia in isomerization of n-hexane",
volume = "15",
number = "2",
pages = "136",
doi = "10.2298/PAC2102111Z"
}

Zarubica, A., Krstić, J., Popović, D., Krstić, A., Ljupković, R., Ranđelović, M.,& Matović, B.. (2021). Influence of alumina addition on structural and catalytic properties of sulphated zirconia in isomerization of n-hexane. in Processing and Application of Ceramics
Novi Sad : University of Novi Sad, Faculty of Technology., 15(2), 136.
https://doi.org/10.2298/PAC2102111Z

Zarubica A, Krstić J, Popović D, Krstić A, Ljupković R, Ranđelović M, Matović B. Influence of alumina addition on structural and catalytic properties of sulphated zirconia in isomerization of n-hexane. in Processing and Application of Ceramics. 2021;15(2):136.
doi:10.2298/PAC2102111Z .

Zarubica, Aleksandra, Krstić, Jugoslav, Popović, Dejan, Krstić, Aleksandra, Ljupković, Radomir, Ranđelović, Marjan, Matović, Branko, "Influence of alumina addition on structural and catalytic properties of sulphated zirconia in isomerization of n-hexane" in Processing and Application of Ceramics, 15, no. 2 (2021):136,
https://doi.org/10.2298/PAC2102111Z . .

TY  - JOUR
AU  - Mićović, Dragana
AU  - Pagnacco, Maja
AU  - Banković, Predrag
AU  - Maletaškić, Jelena
AU  - Matović, Branko
AU  - Djokič, Veljko
AU  - Stojmenović, Marija
PY  - 2019
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/3246
AB  - Potential non-toxic pink and red ceramic pigments based on CeO2 were successfully synthesized by selfpropagating room temperaturemethod and thermally treated at 600, 900 and 1200°C for 15min. The structure, morphology and optical properties, as well as thermal stability of Ce1-xErxO2-δ and Ce1-xPrxO2-δ(x = 0.05) were examined. Single-phase composition of all obtained CeO2 pigments was confirmed using XRPD method and Raman spectroscopy and it was not dependent on temperature. The mechanism of structural behaviour was thoroughly examined using Raman and FTIR spectroscopy. Nanometric dimensions of the crystallites of all pigments were confirmed using XRPD, TEM and FE-SEM analysis. Colour properties were dependent on the temperature treatment, and their position in the chromaticity diagram was studied using UV/VIS spectrophotometry. Colour efficiency measurements were supplemented by colorimetric analysis. It is proved that all samples are thermally stable in the investigated temperature range (up to 1200°C), and their potential application as environmentally friendly pigments of desired colour is confirmed.
PB  - Faculty of Technology, University of Novi Sad
T2  - Processing and Application of Ceramics
T1  - The influence of short thermal treatment on structure, morphology and optical properties of Er and Pr doped ceria pigments: Comparative study
VL  - 13
IS  - 3
SP  - 310
EP  - 321
DO  - 10.2298/PAC1903310M
ER  - 

@article{
author = "Mićović, Dragana and Pagnacco, Maja and Banković, Predrag and Maletaškić, Jelena and Matović, Branko and Djokič, Veljko and Stojmenović, Marija",
year = "2019",
abstract = "Potential non-toxic pink and red ceramic pigments based on CeO2 were successfully synthesized by selfpropagating room temperaturemethod and thermally treated at 600, 900 and 1200°C for 15min. The structure, morphology and optical properties, as well as thermal stability of Ce1-xErxO2-δ and Ce1-xPrxO2-δ(x = 0.05) were examined. Single-phase composition of all obtained CeO2 pigments was confirmed using XRPD method and Raman spectroscopy and it was not dependent on temperature. The mechanism of structural behaviour was thoroughly examined using Raman and FTIR spectroscopy. Nanometric dimensions of the crystallites of all pigments were confirmed using XRPD, TEM and FE-SEM analysis. Colour properties were dependent on the temperature treatment, and their position in the chromaticity diagram was studied using UV/VIS spectrophotometry. Colour efficiency measurements were supplemented by colorimetric analysis. It is proved that all samples are thermally stable in the investigated temperature range (up to 1200°C), and their potential application as environmentally friendly pigments of desired colour is confirmed.",
publisher = "Faculty of Technology, University of Novi Sad",
journal = "Processing and Application of Ceramics",
title = "The influence of short thermal treatment on structure, morphology and optical properties of Er and Pr doped ceria pigments: Comparative study",
volume = "13",
number = "3",
pages = "310-321",
doi = "10.2298/PAC1903310M"
}

Mićović, D., Pagnacco, M., Banković, P., Maletaškić, J., Matović, B., Djokič, V.,& Stojmenović, M.. (2019). The influence of short thermal treatment on structure, morphology and optical properties of Er and Pr doped ceria pigments: Comparative study. in Processing and Application of Ceramics
Faculty of Technology, University of Novi Sad., 13(3), 310-321.
https://doi.org/10.2298/PAC1903310M

Mićović D, Pagnacco M, Banković P, Maletaškić J, Matović B, Djokič V, Stojmenović M. The influence of short thermal treatment on structure, morphology and optical properties of Er and Pr doped ceria pigments: Comparative study. in Processing and Application of Ceramics. 2019;13(3):310-321.
doi:10.2298/PAC1903310M .

Mićović, Dragana, Pagnacco, Maja, Banković, Predrag, Maletaškić, Jelena, Matović, Branko, Djokič, Veljko, Stojmenović, Marija, "The influence of short thermal treatment on structure, morphology and optical properties of Er and Pr doped ceria pigments: Comparative study" in Processing and Application of Ceramics, 13, no. 3 (2019):310-321,
https://doi.org/10.2298/PAC1903310M . .

TY  - JOUR
AU  - Milenkovic, Ivana
AU  - Radotić, Ksenija
AU  - Matović, Branko
AU  - Prekajski, Marija
AU  - Živković, Ljiljana S.
AU  - Jakovljević, Dragica
AU  - Gojgić-Cvijović, Gordana
AU  - Beškoski, Vladimir
PY  - 2018
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/2447
AB  - Cerium oxide (CeO2) nanoparticles (CONPs) are interesting biomaterials with various applications in biomedicine, cosmetics and the pharmaceutical industry, but with limited practical application because of their low stability in aqueous media. The aim of this study was to obtain CONPs with increased stability by coating the particles. Microbial exopolysaccharides (levan, pullulan) and glucose were used to prepare CONPs under different synthesis conditions. Coating was attempted by adding the carbohydrates during (direct coating) or after (subsequent coating) the synthesis of CONPs. The obtained nanoparticles were characterized by X-Ray diffraction analysis, Fourier transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The suspension stability of the uncoated and coated CONPs in aqueous media was evaluated by measuring the hydrodynamic size, zeta potential and turbidity. The FT-IR spectra revealed the differences between coated CONPs and showed the success of subsequent coating with carbohydrates. Coating with carbohydrates improved the stability the CONP suspension by decreasing the size of aggregated particles. The suspensions of levan- and glucose-coated CONPs had the best stability. In this study, CONPs were prepared using non-toxic materials, which were completely environmentally friendly. The obtained results open new horizons for CONP synthesis, improving their biological applications.
PB  - Serbian Chemical Soc, Belgrade
T2  - Journal of the Serbian Chemical Society
T1  - Improving stability of cerium oxide nanoparticles by microbial polysaccharides coating
VL  - 83
IS  - 6
SP  - 745
EP  - 757
DO  - 10.2298/JSC171205031M
ER  - 

@article{
author = "Milenkovic, Ivana and Radotić, Ksenija and Matović, Branko and Prekajski, Marija and Živković, Ljiljana S. and Jakovljević, Dragica and Gojgić-Cvijović, Gordana and Beškoski, Vladimir",
year = "2018",
abstract = "Cerium oxide (CeO2) nanoparticles (CONPs) are interesting biomaterials with various applications in biomedicine, cosmetics and the pharmaceutical industry, but with limited practical application because of their low stability in aqueous media. The aim of this study was to obtain CONPs with increased stability by coating the particles. Microbial exopolysaccharides (levan, pullulan) and glucose were used to prepare CONPs under different synthesis conditions. Coating was attempted by adding the carbohydrates during (direct coating) or after (subsequent coating) the synthesis of CONPs. The obtained nanoparticles were characterized by X-Ray diffraction analysis, Fourier transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The suspension stability of the uncoated and coated CONPs in aqueous media was evaluated by measuring the hydrodynamic size, zeta potential and turbidity. The FT-IR spectra revealed the differences between coated CONPs and showed the success of subsequent coating with carbohydrates. Coating with carbohydrates improved the stability the CONP suspension by decreasing the size of aggregated particles. The suspensions of levan- and glucose-coated CONPs had the best stability. In this study, CONPs were prepared using non-toxic materials, which were completely environmentally friendly. The obtained results open new horizons for CONP synthesis, improving their biological applications.",
publisher = "Serbian Chemical Soc, Belgrade",
journal = "Journal of the Serbian Chemical Society",
title = "Improving stability of cerium oxide nanoparticles by microbial polysaccharides coating",
volume = "83",
number = "6",
pages = "745-757",
doi = "10.2298/JSC171205031M"
}

Milenkovic, I., Radotić, K., Matović, B., Prekajski, M., Živković, L. S., Jakovljević, D., Gojgić-Cvijović, G.,& Beškoski, V.. (2018). Improving stability of cerium oxide nanoparticles by microbial polysaccharides coating. in Journal of the Serbian Chemical Society
Serbian Chemical Soc, Belgrade., 83(6), 745-757.
https://doi.org/10.2298/JSC171205031M

Milenkovic I, Radotić K, Matović B, Prekajski M, Živković LS, Jakovljević D, Gojgić-Cvijović G, Beškoski V. Improving stability of cerium oxide nanoparticles by microbial polysaccharides coating. in Journal of the Serbian Chemical Society. 2018;83(6):745-757.
doi:10.2298/JSC171205031M .

Milenkovic, Ivana, Radotić, Ksenija, Matović, Branko, Prekajski, Marija, Živković, Ljiljana S., Jakovljević, Dragica, Gojgić-Cvijović, Gordana, Beškoski, Vladimir, "Improving stability of cerium oxide nanoparticles by microbial polysaccharides coating" in Journal of the Serbian Chemical Society, 83, no. 6 (2018):745-757,
https://doi.org/10.2298/JSC171205031M . .

TY  - JOUR
AU  - Kokunešoski, Maja
AU  - Šaponjić, Aleksandra
AU  - Stanković, Miroslav
AU  - Majstorovic, Jelena
AU  - Egelja, Adela
AU  - Ilić, Svetlana
AU  - Matović, Branko
PY  - 2016
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/1961
AB  - Porous silica ceramics were obtained at low forming pressure (40-80 MPa) and low sintering temperature (850-1300 degrees C) for 4 h in air. Boric acid was used as a low-cost additive, in the amount of 2 wt%. Relatively high porosities of nearly 40% and 65% are obtained for the samples of clay and diatomite pressed at 40 MPa, and sintered at 1000 degrees C, respectively. The samples sintered at 1150 degrees C and 1300 degrees C have the average pore size diameters in the range of macroporous for clay 0.2-10 m and for diatomite 0.2-5 m. X-ray diffraction, Fourier transform infrared spectroscopy, scanning electron microscopy, and mercury porosimetry measurements were employed to characterize of the obtained samples. Measurements of densities and open porosities by immersion technique were used, according to the Archimedes principle. The relations between mechanical characteristics of the samples formed by using different pressures and sintered at different temperature, were discussed.
PB  - Elsevier Sci Ltd, Oxford
T2  - Ceramics International
T1  - Effect of boric acid on the porosity of clay and diatomite monoliths
VL  - 42
IS  - 5
SP  - 6383
EP  - 6390
DO  - 10.1016/j.ceramint.2016.01.034
ER  - 

@article{
author = "Kokunešoski, Maja and Šaponjić, Aleksandra and Stanković, Miroslav and Majstorovic, Jelena and Egelja, Adela and Ilić, Svetlana and Matović, Branko",
year = "2016",
abstract = "Porous silica ceramics were obtained at low forming pressure (40-80 MPa) and low sintering temperature (850-1300 degrees C) for 4 h in air. Boric acid was used as a low-cost additive, in the amount of 2 wt%. Relatively high porosities of nearly 40% and 65% are obtained for the samples of clay and diatomite pressed at 40 MPa, and sintered at 1000 degrees C, respectively. The samples sintered at 1150 degrees C and 1300 degrees C have the average pore size diameters in the range of macroporous for clay 0.2-10 m and for diatomite 0.2-5 m. X-ray diffraction, Fourier transform infrared spectroscopy, scanning electron microscopy, and mercury porosimetry measurements were employed to characterize of the obtained samples. Measurements of densities and open porosities by immersion technique were used, according to the Archimedes principle. The relations between mechanical characteristics of the samples formed by using different pressures and sintered at different temperature, were discussed.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Ceramics International",
title = "Effect of boric acid on the porosity of clay and diatomite monoliths",
volume = "42",
number = "5",
pages = "6383-6390",
doi = "10.1016/j.ceramint.2016.01.034"
}

Kokunešoski, M., Šaponjić, A., Stanković, M., Majstorovic, J., Egelja, A., Ilić, S.,& Matović, B.. (2016). Effect of boric acid on the porosity of clay and diatomite monoliths. in Ceramics International
Elsevier Sci Ltd, Oxford., 42(5), 6383-6390.
https://doi.org/10.1016/j.ceramint.2016.01.034

Kokunešoski M, Šaponjić A, Stanković M, Majstorovic J, Egelja A, Ilić S, Matović B. Effect of boric acid on the porosity of clay and diatomite monoliths. in Ceramics International. 2016;42(5):6383-6390.
doi:10.1016/j.ceramint.2016.01.034 .

Kokunešoski, Maja, Šaponjić, Aleksandra, Stanković, Miroslav, Majstorovic, Jelena, Egelja, Adela, Ilić, Svetlana, Matović, Branko, "Effect of boric acid on the porosity of clay and diatomite monoliths" in Ceramics International, 42, no. 5 (2016):6383-6390,
https://doi.org/10.1016/j.ceramint.2016.01.034 . .

TY  - JOUR
AU  - Šaponjić, Aleksandra
AU  - Stanković, Miroslav
AU  - Majstorovic, Jelena
AU  - Matović, Branko
AU  - Ilić, Svetlana
AU  - Egelja, Adela
AU  - Kokunešoski, Maja
PY  - 2015
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/1654
AB  - Porous silica ceramics were obtained at low forming pressure and low sintering temperature by using diatomaceous earth as a silica source and boric acid as an inexpensive additive. The starting raw material, diatomite from surface coal mine Kolubara, Serbia, was purified from organic and inorganic impurities by using heat and chemical treatment. Boric acid was used as binding and sintering aid up to 2 wt%. Powder was compacted by using different pressures of 40, 60 and 80 MPa. The pressed samples were sintered at 850, 1000, 1150, and 1300 degrees C for 4 h in air. A relatively high porosity in the range of 60-70% is obtained for the samples pressed at 40, 60 and 80 MPa and sintered at 1000 degrees C. Median pore size diameters are in the range of macroporous up to 2 mu m in the samples sintered at 1150 and 1300 degrees C. X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy, scaning electron microscopy (SEM) and mercury porosimetry measurements were employed to characterize the phases, functional groups, microstructure and pore size distribution of the obtained samples. In addition, measurements of densities and open porosities by immersion technique, according to Archimedes principle, were used. The relations between mechanical properties (Young modulus, Poisson ratio, and compressive strength) versus content of boric acid in the investigated samples were studied and disscussed.
PB  - Elsevier Sci Ltd, Oxford
T2  - Ceramics International
T1  - Porous ceramic monoliths based on diatomite
VL  - 41
IS  - 8
SP  - 9745
EP  - 9752
DO  - 10.1016/j.ceramint.2015.04.046
ER  - 

@article{
author = "Šaponjić, Aleksandra and Stanković, Miroslav and Majstorovic, Jelena and Matović, Branko and Ilić, Svetlana and Egelja, Adela and Kokunešoski, Maja",
year = "2015",
abstract = "Porous silica ceramics were obtained at low forming pressure and low sintering temperature by using diatomaceous earth as a silica source and boric acid as an inexpensive additive. The starting raw material, diatomite from surface coal mine Kolubara, Serbia, was purified from organic and inorganic impurities by using heat and chemical treatment. Boric acid was used as binding and sintering aid up to 2 wt%. Powder was compacted by using different pressures of 40, 60 and 80 MPa. The pressed samples were sintered at 850, 1000, 1150, and 1300 degrees C for 4 h in air. A relatively high porosity in the range of 60-70% is obtained for the samples pressed at 40, 60 and 80 MPa and sintered at 1000 degrees C. Median pore size diameters are in the range of macroporous up to 2 mu m in the samples sintered at 1150 and 1300 degrees C. X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy, scaning electron microscopy (SEM) and mercury porosimetry measurements were employed to characterize the phases, functional groups, microstructure and pore size distribution of the obtained samples. In addition, measurements of densities and open porosities by immersion technique, according to Archimedes principle, were used. The relations between mechanical properties (Young modulus, Poisson ratio, and compressive strength) versus content of boric acid in the investigated samples were studied and disscussed.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Ceramics International",
title = "Porous ceramic monoliths based on diatomite",
volume = "41",
number = "8",
pages = "9745-9752",
doi = "10.1016/j.ceramint.2015.04.046"
}

Šaponjić, A., Stanković, M., Majstorovic, J., Matović, B., Ilić, S., Egelja, A.,& Kokunešoski, M.. (2015). Porous ceramic monoliths based on diatomite. in Ceramics International
Elsevier Sci Ltd, Oxford., 41(8), 9745-9752.
https://doi.org/10.1016/j.ceramint.2015.04.046

Šaponjić A, Stanković M, Majstorovic J, Matović B, Ilić S, Egelja A, Kokunešoski M. Porous ceramic monoliths based on diatomite. in Ceramics International. 2015;41(8):9745-9752.
doi:10.1016/j.ceramint.2015.04.046 .

Šaponjić, Aleksandra, Stanković, Miroslav, Majstorovic, Jelena, Matović, Branko, Ilić, Svetlana, Egelja, Adela, Kokunešoski, Maja, "Porous ceramic monoliths based on diatomite" in Ceramics International, 41, no. 8 (2015):9745-9752,
https://doi.org/10.1016/j.ceramint.2015.04.046 . .

TY  - JOUR
AU  - Tomić, N.
AU  - Grujić-Brojčin, Mirjana
AU  - Finčur, Nina L.
AU  - Abramović, Biljana F.
AU  - Simovic, B
AU  - Krstić, Jugoslav
AU  - Matović, Branko
AU  - Scepanovic, M
PY  - 2015
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/1794
AB  - Two series of nanocrystalline brookite-type powders have been synthesized by using combined sal gel hydrothermal method with titanium tetrachloride (TiCI4) as a precursor and hydrothermal temperature and reaction time varied in the range of 120-200 degrees C and 12-48 h, respectively. The effects of chosen synthesis parameters on structural, morphological and optical properties of synthesized powders have been investigated by the XRPD, SEM, EDS and BET measurements, as well Raman spectroscopy and spectroscopic ellipsometry. The XRPD results have shown that pure brookite phase, with mean crystallite size of -33 nm, has been obtained only in the sample synthesized at 200 degrees C, after 24 h of hydrothermal process. In all other samples anatase phase also appears, whereas rutile and sodium titanate phases have been noticed in the samples synthesized at lower temperatures. The presence of different titania phases has also been confirmed and analyzed by Raman scattering measurements. The SEM measurements have shown spindle-like particles in brookite-rich samples synthesized at 200 degrees C, whereas BET measurements have detected mesoporous structure in these samples. The properties of synthesized powders have been correlated to their photocatalytic efficiency, tested in degradation of alprazolam, one of the 5th generation benzodiazepines. The sample consisted of pure brookite has shown the highest efficiency in the photodegradation of alprazolam, practically equal to the activity of Degussa P25.
PB  - Elsevier Science Sa, Lausanne
T2  - Materials Chemistry and Physics
T1  - Photocatalytic degradation of alprazolam in water suspension of brookite type TiO2 nanopowders prepared using hydrothermal route
VL  - 163
SP  - 518
EP  - 528
DO  - 10.1016/j.matchemphys.2015.08.008
ER  - 

@article{
author = "Tomić, N. and Grujić-Brojčin, Mirjana and Finčur, Nina L. and Abramović, Biljana F. and Simovic, B and Krstić, Jugoslav and Matović, Branko and Scepanovic, M",
year = "2015",
abstract = "Two series of nanocrystalline brookite-type powders have been synthesized by using combined sal gel hydrothermal method with titanium tetrachloride (TiCI4) as a precursor and hydrothermal temperature and reaction time varied in the range of 120-200 degrees C and 12-48 h, respectively. The effects of chosen synthesis parameters on structural, morphological and optical properties of synthesized powders have been investigated by the XRPD, SEM, EDS and BET measurements, as well Raman spectroscopy and spectroscopic ellipsometry. The XRPD results have shown that pure brookite phase, with mean crystallite size of -33 nm, has been obtained only in the sample synthesized at 200 degrees C, after 24 h of hydrothermal process. In all other samples anatase phase also appears, whereas rutile and sodium titanate phases have been noticed in the samples synthesized at lower temperatures. The presence of different titania phases has also been confirmed and analyzed by Raman scattering measurements. The SEM measurements have shown spindle-like particles in brookite-rich samples synthesized at 200 degrees C, whereas BET measurements have detected mesoporous structure in these samples. The properties of synthesized powders have been correlated to their photocatalytic efficiency, tested in degradation of alprazolam, one of the 5th generation benzodiazepines. The sample consisted of pure brookite has shown the highest efficiency in the photodegradation of alprazolam, practically equal to the activity of Degussa P25.",
publisher = "Elsevier Science Sa, Lausanne",
journal = "Materials Chemistry and Physics",
title = "Photocatalytic degradation of alprazolam in water suspension of brookite type TiO2 nanopowders prepared using hydrothermal route",
volume = "163",
pages = "518-528",
doi = "10.1016/j.matchemphys.2015.08.008"
}

Tomić, N., Grujić-Brojčin, M., Finčur, N. L., Abramović, B. F., Simovic, B., Krstić, J., Matović, B.,& Scepanovic, M.. (2015). Photocatalytic degradation of alprazolam in water suspension of brookite type TiO2 nanopowders prepared using hydrothermal route. in Materials Chemistry and Physics
Elsevier Science Sa, Lausanne., 163, 518-528.
https://doi.org/10.1016/j.matchemphys.2015.08.008

Tomić N, Grujić-Brojčin M, Finčur NL, Abramović BF, Simovic B, Krstić J, Matović B, Scepanovic M. Photocatalytic degradation of alprazolam in water suspension of brookite type TiO2 nanopowders prepared using hydrothermal route. in Materials Chemistry and Physics. 2015;163:518-528.
doi:10.1016/j.matchemphys.2015.08.008 .

Tomić, N., Grujić-Brojčin, Mirjana, Finčur, Nina L., Abramović, Biljana F., Simovic, B, Krstić, Jugoslav, Matović, Branko, Scepanovic, M, "Photocatalytic degradation of alprazolam in water suspension of brookite type TiO2 nanopowders prepared using hydrothermal route" in Materials Chemistry and Physics, 163 (2015):518-528,
https://doi.org/10.1016/j.matchemphys.2015.08.008 . .

TY  - CHAP
AU  - Martinović, Sanja
AU  - Vlahović, Milica
AU  - Boljanac, Tamara
AU  - Matović, Branko
AU  - Volkov Husović, Tatjana
PY  - 2014
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/5987
AB  - Lifetime prediction for construction material is essential and very often crucial for
determination of impact on material application and service. Many models based on
different parameters were used to monitor materials behavior subjected to different
extreme conditions such as thermal shock and erosive wear. In this chapter, image
analysis for lifetime prediction of refractory concrete, more precisely low cement high
alumina castable, during the thermal shock and cavitation erosion was studied and
discussed. Generally, analyzed material has the properties that depend on sintering
temperature but usually is a material with very high strength, density, hardness, and good
thermal stability resistance. Usage of image analysis for lifetime prediction of refractory
concrete during the thermal shock and cavitation erosion were the goals of this study.
Thermal stability was investigated using most common experimental method, water
quench test. Destruction of samples during the testing was monitored by image analysis.
Results obtained from the image analysis of samples surface and bulk give proof that the
level of degradation induced by extreme conditions can be monitored by this way. Values of degradation level were used for lifetime modeling expressed as strength degradation,
and correlated to the experimental values. Based on the models for strength degradation
using degradation level as variable, model for lifetime was proposed.
Similar approach was applied in case of monitoring the degradation level caused by
cavitation erosion experiments. The fluid dynamic system of the experimental
methodology used to produce ultrasonic erosive wear. Mass loss and level of material
degradation were measured before and during the experiment. Level of degradation, that
is average erosion area were monitored by using Image Pro Plus program for image
analysis. Obtained results showed that after 180 minutes sample exhibited excellent
erosion resistance compared to metallic and ceramic samples. Level of surface
degradation did not overcome 8 % compared to the original surface.
PB  - Nova Science Publishers, Inc.
T2  - Advances in Image Analysis Research
T1  - Implementation of image analysis research on concrete lifetime prediction for thermal stability and cavitaion eriosion testing
SP  - 171
EP  - 186
UR  - https://hdl.handle.net/21.15107/rcub_cer_5987
ER  - 

@inbook{
author = "Martinović, Sanja and Vlahović, Milica and Boljanac, Tamara and Matović, Branko and Volkov Husović, Tatjana",
year = "2014",
abstract = "Lifetime prediction for construction material is essential and very often crucial for
determination of impact on material application and service. Many models based on
different parameters were used to monitor materials behavior subjected to different
extreme conditions such as thermal shock and erosive wear. In this chapter, image
analysis for lifetime prediction of refractory concrete, more precisely low cement high
alumina castable, during the thermal shock and cavitation erosion was studied and
discussed. Generally, analyzed material has the properties that depend on sintering
temperature but usually is a material with very high strength, density, hardness, and good
thermal stability resistance. Usage of image analysis for lifetime prediction of refractory
concrete during the thermal shock and cavitation erosion were the goals of this study.
Thermal stability was investigated using most common experimental method, water
quench test. Destruction of samples during the testing was monitored by image analysis.
Results obtained from the image analysis of samples surface and bulk give proof that the
level of degradation induced by extreme conditions can be monitored by this way. Values of degradation level were used for lifetime modeling expressed as strength degradation,
and correlated to the experimental values. Based on the models for strength degradation
using degradation level as variable, model for lifetime was proposed.
Similar approach was applied in case of monitoring the degradation level caused by
cavitation erosion experiments. The fluid dynamic system of the experimental
methodology used to produce ultrasonic erosive wear. Mass loss and level of material
degradation were measured before and during the experiment. Level of degradation, that
is average erosion area were monitored by using Image Pro Plus program for image
analysis. Obtained results showed that after 180 minutes sample exhibited excellent
erosion resistance compared to metallic and ceramic samples. Level of surface
degradation did not overcome 8 % compared to the original surface.",
publisher = "Nova Science Publishers, Inc.",
journal = "Advances in Image Analysis Research",
booktitle = "Implementation of image analysis research on concrete lifetime prediction for thermal stability and cavitaion eriosion testing",
pages = "171-186",
url = "https://hdl.handle.net/21.15107/rcub_cer_5987"
}

Martinović, S., Vlahović, M., Boljanac, T., Matović, B.,& Volkov Husović, T.. (2014). Implementation of image analysis research on concrete lifetime prediction for thermal stability and cavitaion eriosion testing. in Advances in Image Analysis Research
Nova Science Publishers, Inc.., 171-186.
https://hdl.handle.net/21.15107/rcub_cer_5987

Martinović S, Vlahović M, Boljanac T, Matović B, Volkov Husović T. Implementation of image analysis research on concrete lifetime prediction for thermal stability and cavitaion eriosion testing. in Advances in Image Analysis Research. 2014;:171-186.
https://hdl.handle.net/21.15107/rcub_cer_5987 .

Martinović, Sanja, Vlahović, Milica, Boljanac, Tamara, Matović, Branko, Volkov Husović, Tatjana, "Implementation of image analysis research on concrete lifetime prediction for thermal stability and cavitaion eriosion testing" in Advances in Image Analysis Research (2014):171-186,
https://hdl.handle.net/21.15107/rcub_cer_5987 .

TY  - JOUR
AU  - Gordic, Milan
AU  - Bucevac, Dusan
AU  - Ružić, Jovana
AU  - Gavrilovic, Suzana
AU  - Hercigonja, Radmila
AU  - Stanković, Miroslav
AU  - Matović, Branko
PY  - 2014
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/1528
AB  - Biomorphous beta-SiC ceramics were produced from several species of wood such as ash, wild cherry, black alder, Persian walnut, sessile oak and European hornbeam. The wood was pyrolysed, impregnated with tetraethyl orthosilicate (TEOS) sol in repeated cycles and thermally treated at 1800 degrees C in vacuum. Four specimen groups included charcoal and three groups with 1, 3 and 5 cycles of impregnation were analyzed. Flexural and compressional strength of charcoal and woodlike SiC ceramics were measured using three-point and compression testing in different directions. Experimental results showed that mechanical properties of woodceramics were improved by repeating of impregnation cycles. Porosity measurement, dilatometric analysis, XRD and SEM analysis were used to study the macroscopical and microscopical properties of the resulting biomorphic SiC ceramics.
PB  - Elsevier Sci Ltd, Oxford
T2  - Ceramics International
T1  - Biomimetic synthesis and properties of cellular SiC
VL  - 40
IS  - 2
SP  - 3699
EP  - 3705
DO  - 10.1016/j.ceramint.2013.09.054
ER  - 

@article{
author = "Gordic, Milan and Bucevac, Dusan and Ružić, Jovana and Gavrilovic, Suzana and Hercigonja, Radmila and Stanković, Miroslav and Matović, Branko",
year = "2014",
abstract = "Biomorphous beta-SiC ceramics were produced from several species of wood such as ash, wild cherry, black alder, Persian walnut, sessile oak and European hornbeam. The wood was pyrolysed, impregnated with tetraethyl orthosilicate (TEOS) sol in repeated cycles and thermally treated at 1800 degrees C in vacuum. Four specimen groups included charcoal and three groups with 1, 3 and 5 cycles of impregnation were analyzed. Flexural and compressional strength of charcoal and woodlike SiC ceramics were measured using three-point and compression testing in different directions. Experimental results showed that mechanical properties of woodceramics were improved by repeating of impregnation cycles. Porosity measurement, dilatometric analysis, XRD and SEM analysis were used to study the macroscopical and microscopical properties of the resulting biomorphic SiC ceramics.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Ceramics International",
title = "Biomimetic synthesis and properties of cellular SiC",
volume = "40",
number = "2",
pages = "3699-3705",
doi = "10.1016/j.ceramint.2013.09.054"
}

Gordic, M., Bucevac, D., Ružić, J., Gavrilovic, S., Hercigonja, R., Stanković, M.,& Matović, B.. (2014). Biomimetic synthesis and properties of cellular SiC. in Ceramics International
Elsevier Sci Ltd, Oxford., 40(2), 3699-3705.
https://doi.org/10.1016/j.ceramint.2013.09.054

Gordic M, Bucevac D, Ružić J, Gavrilovic S, Hercigonja R, Stanković M, Matović B. Biomimetic synthesis and properties of cellular SiC. in Ceramics International. 2014;40(2):3699-3705.
doi:10.1016/j.ceramint.2013.09.054 .

Gordic, Milan, Bucevac, Dusan, Ružić, Jovana, Gavrilovic, Suzana, Hercigonja, Radmila, Stanković, Miroslav, Matović, Branko, "Biomimetic synthesis and properties of cellular SiC" in Ceramics International, 40, no. 2 (2014):3699-3705,
https://doi.org/10.1016/j.ceramint.2013.09.054 . .

TY  - CONF
AU  - Volkov Husović, Tatjana
AU  - Martinović, Sanja
AU  - Vlahović, Milica
AU  - Majstorović, Jelena
AU  - Devečerski, Aleksandar
AU  - Matović, Branko
PY  - 2013
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/7314
AB  - Non-destructive evaluation of degradation level in extreme condition caused by: thermal shock and cavitation erosion for refractory concrete (LCC) and durability of sulfur concrete in aggressive environment were goal of our investigation. Nondestructive testing methods such are image analysis and UPVT were used. Thermal stability of refractory LCC samples was tested using standard laboratory procedure of water quench test (ICS 81.080 SRPS B.D8.308 former JUS B. D8. 306). Program for image analysis was applied for monitoring destruction at the surface and bulk of the sample before and during testing. Ultrasonic pulse velocity testing (UPVT) was applied to measure ultrasonic velocities changes during testing. Cavitation damage ratio was monitored using mass loss during experiment as well as image analysis of the photographs of the samples before and during testing. Image analysis using different software allowed to measure ratio of the damaged surface during cavitation erosion. Results were presented as surface erosion ratio. In order to predict service life of the sulfur–polymer composite, the samples were subjected to the induced destruction using 10% hydrochloric acid solution. Sulfur–polymer composite showed limited mechanical strength and mass loss, while physico-mechanical properties of Portland cement composite regressed rapidly. The Image Pro Plus software was used for surface destruction monitoring.
PB  - Institute for Multidisciplinary Research
C3  - Programme and Book of Abstracts - 2nd Conference of the Serbian Ceramic Society (2CSCS 2013), June 5-7, 2013  Belgrade, Serbia
T1  - Nondestructive evaluation of degradation level for refractory and polymer composite materials in extreme conditions
SP  - 38
EP  - 38
UR  - https://hdl.handle.net/21.15107/rcub_cer_7314
ER  - 

@conference{
author = "Volkov Husović, Tatjana and Martinović, Sanja and Vlahović, Milica and Majstorović, Jelena and Devečerski, Aleksandar and Matović, Branko",
year = "2013",
abstract = "Non-destructive evaluation of degradation level in extreme condition caused by: thermal shock and cavitation erosion for refractory concrete (LCC) and durability of sulfur concrete in aggressive environment were goal of our investigation. Nondestructive testing methods such are image analysis and UPVT were used. Thermal stability of refractory LCC samples was tested using standard laboratory procedure of water quench test (ICS 81.080 SRPS B.D8.308 former JUS B. D8. 306). Program for image analysis was applied for monitoring destruction at the surface and bulk of the sample before and during testing. Ultrasonic pulse velocity testing (UPVT) was applied to measure ultrasonic velocities changes during testing. Cavitation damage ratio was monitored using mass loss during experiment as well as image analysis of the photographs of the samples before and during testing. Image analysis using different software allowed to measure ratio of the damaged surface during cavitation erosion. Results were presented as surface erosion ratio. In order to predict service life of the sulfur–polymer composite, the samples were subjected to the induced destruction using 10% hydrochloric acid solution. Sulfur–polymer composite showed limited mechanical strength and mass loss, while physico-mechanical properties of Portland cement composite regressed rapidly. The Image Pro Plus software was used for surface destruction monitoring.",
publisher = "Institute for Multidisciplinary Research",
journal = "Programme and Book of Abstracts - 2nd Conference of the Serbian Ceramic Society (2CSCS 2013), June 5-7, 2013  Belgrade, Serbia",
title = "Nondestructive evaluation of degradation level for refractory and polymer composite materials in extreme conditions",
pages = "38-38",
url = "https://hdl.handle.net/21.15107/rcub_cer_7314"
}

Volkov Husović, T., Martinović, S., Vlahović, M., Majstorović, J., Devečerski, A.,& Matović, B.. (2013). Nondestructive evaluation of degradation level for refractory and polymer composite materials in extreme conditions. in Programme and Book of Abstracts - 2nd Conference of the Serbian Ceramic Society (2CSCS 2013), June 5-7, 2013  Belgrade, Serbia
Institute for Multidisciplinary Research., 38-38.
https://hdl.handle.net/21.15107/rcub_cer_7314

Volkov Husović T, Martinović S, Vlahović M, Majstorović J, Devečerski A, Matović B. Nondestructive evaluation of degradation level for refractory and polymer composite materials in extreme conditions. in Programme and Book of Abstracts - 2nd Conference of the Serbian Ceramic Society (2CSCS 2013), June 5-7, 2013  Belgrade, Serbia. 2013;:38-38.
https://hdl.handle.net/21.15107/rcub_cer_7314 .

Volkov Husović, Tatjana, Martinović, Sanja, Vlahović, Milica, Majstorović, Jelena, Devečerski, Aleksandar, Matović, Branko, "Nondestructive evaluation of degradation level for refractory and polymer composite materials in extreme conditions" in Programme and Book of Abstracts - 2nd Conference of the Serbian Ceramic Society (2CSCS 2013), June 5-7, 2013  Belgrade, Serbia (2013):38-38,
https://hdl.handle.net/21.15107/rcub_cer_7314 .

TY  - JOUR
AU  - Vidojković, Sonja
AU  - Onjia, Antonije E.
AU  - Matović, Branko
AU  - Grahovac, Nebojsa
AU  - Maksimović, Vesna M.
AU  - Nastasović, Aleksandra
PY  - 2013
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/1181
AB  - Prevention and minimizing corrosion processes on steam generating equipment is highly important in the thermal power industry. The maintenance of feedwater quality at a level corresponding to the standards of technological designing, followed by timely respond to the fluctuation of measured parameters, has a decisive role in corrosion prevention. In this study, the comprehensive chemical control of feedwater quality in 210 MW Thermal Power Plant (TPP) was carried out in order to evaluate its potentiality to assure reliable function of the boiler and discover possible irregularity that might be responsible for frequent boiler tube failures. Sensitive on-line and off-line analytical instruments were used for measuring key and diagnostic parameters considered to be crucial for boiler safety and performances. Obtained results provided evidences for exceeded levels of oxygen, silica, sodium, chloride, sulfate, copper, and conductivity what distinctly demonstrated necessity of feedwater control improvement. Consequently, more effective feedwater quality monitoring concept was recommended. In this paper, the explanation of presumable root causes of corrosive contaminants was given including basic directions for their maintenance in proscribed limits.
PB  - Oxford : Pergamon-Elsevier Science Ltd
T2  - Applied Thermal Engineering
T1  - Extensive feedwater quality control and monitoring concept for preventing chemistry-related failures of boiler tubes in a subcritical thermal power plant
VL  - 59
IS  - 1-2
SP  - 683
EP  - 694
DO  - 10.1016/j.applthermaleng.2013.06.028
ER  - 

@article{
author = "Vidojković, Sonja and Onjia, Antonije E. and Matović, Branko and Grahovac, Nebojsa and Maksimović, Vesna M. and Nastasović, Aleksandra",
year = "2013",
abstract = "Prevention and minimizing corrosion processes on steam generating equipment is highly important in the thermal power industry. The maintenance of feedwater quality at a level corresponding to the standards of technological designing, followed by timely respond to the fluctuation of measured parameters, has a decisive role in corrosion prevention. In this study, the comprehensive chemical control of feedwater quality in 210 MW Thermal Power Plant (TPP) was carried out in order to evaluate its potentiality to assure reliable function of the boiler and discover possible irregularity that might be responsible for frequent boiler tube failures. Sensitive on-line and off-line analytical instruments were used for measuring key and diagnostic parameters considered to be crucial for boiler safety and performances. Obtained results provided evidences for exceeded levels of oxygen, silica, sodium, chloride, sulfate, copper, and conductivity what distinctly demonstrated necessity of feedwater control improvement. Consequently, more effective feedwater quality monitoring concept was recommended. In this paper, the explanation of presumable root causes of corrosive contaminants was given including basic directions for their maintenance in proscribed limits.",
publisher = "Oxford : Pergamon-Elsevier Science Ltd",
journal = "Applied Thermal Engineering",
title = "Extensive feedwater quality control and monitoring concept for preventing chemistry-related failures of boiler tubes in a subcritical thermal power plant",
volume = "59",
number = "1-2",
pages = "683-694",
doi = "10.1016/j.applthermaleng.2013.06.028"
}

Vidojković, S., Onjia, A. E., Matović, B., Grahovac, N., Maksimović, V. M.,& Nastasović, A.. (2013). Extensive feedwater quality control and monitoring concept for preventing chemistry-related failures of boiler tubes in a subcritical thermal power plant. in Applied Thermal Engineering
Oxford : Pergamon-Elsevier Science Ltd., 59(1-2), 683-694.
https://doi.org/10.1016/j.applthermaleng.2013.06.028

Vidojković S, Onjia AE, Matović B, Grahovac N, Maksimović VM, Nastasović A. Extensive feedwater quality control and monitoring concept for preventing chemistry-related failures of boiler tubes in a subcritical thermal power plant. in Applied Thermal Engineering. 2013;59(1-2):683-694.
doi:10.1016/j.applthermaleng.2013.06.028 .

Vidojković, Sonja, Onjia, Antonije E., Matović, Branko, Grahovac, Nebojsa, Maksimović, Vesna M., Nastasović, Aleksandra, "Extensive feedwater quality control and monitoring concept for preventing chemistry-related failures of boiler tubes in a subcritical thermal power plant" in Applied Thermal Engineering, 59, no. 1-2 (2013):683-694,
https://doi.org/10.1016/j.applthermaleng.2013.06.028 . .