TY  - CONF
AU  - Tošić, Katarina
AU  - Mitrović Rajić, Anđela
AU  - Milošević Govedarović, Sanja
AU  - Mijaković, Sara
AU  - Vujačić Nikezić, Ana V.
AU  - Grbović Novaković, Jasmina
AU  - Paskaš Mamula, Bojana
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12305
AB  - Pyrophyllite, a naturally abundant clay material, exhibits remarkable physicochemical characteristics. Its minimal electrical and thermal conductivity, low expansion rate, strong mechanical properties, and outstanding heat resistance make it a valuable resource across diverse industries. Pyrophyllite finds applications in sectors such as paper and plastic manufacturing, brick production, ceramics, cosmetics, rubber processing, and wastewater treatment. Furthermore, its versatility extends to the production of ceramic membranes for efficient water filtration. This paper presents the characterization of natural pyrophyllite ore subjected to ultrasonic treatment at varying time intervals. The ultrasonic treatment aims to eliminate hard phases such as quartz and calcite within the ore, thereby improving its sorption capabilities. The treated samples were subjected to analysis using SEM and XRD techniques. Morphological and structural analysis revealed that as the duration of ultrasonic treatment increased, the proportion of hard phases in the sample decreased. Additionally, this study evaluated the sorption properties of pyrophyllite. A comparative analysis was conducted between a raw clay sample containing various admixtures and a sample that underwent a 30-minute ultrasonic treatment. The sorption of a methylene blue solution after 24 hours in water was assessed, with UV-Vis analysis revealing that the efficiency of the sonically treated pyrophyllite exceeded 97%, whereas the raw ore exhibited approximately 89% efficiency over the same duration. These findings suggest that the removal of hard phases from pyrophyllite ore enhances its sorption properties
PB  - Belgrade : Institute of Technical Sciences of SASA
C3  - 21st Young Researchers' Conference Materials Sciences and Engineering : program and the book of abstracts
T1  - Improvement of sorption properties of natural clay pyrophyllite by ultrasonic treatment
SP  - 22
EP  - 22
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12305
ER  - 

@conference{
author = "Tošić, Katarina and Mitrović Rajić, Anđela and Milošević Govedarović, Sanja and Mijaković, Sara and Vujačić Nikezić, Ana V. and Grbović Novaković, Jasmina and Paskaš Mamula, Bojana",
year = "2023",
abstract = "Pyrophyllite, a naturally abundant clay material, exhibits remarkable physicochemical characteristics. Its minimal electrical and thermal conductivity, low expansion rate, strong mechanical properties, and outstanding heat resistance make it a valuable resource across diverse industries. Pyrophyllite finds applications in sectors such as paper and plastic manufacturing, brick production, ceramics, cosmetics, rubber processing, and wastewater treatment. Furthermore, its versatility extends to the production of ceramic membranes for efficient water filtration. This paper presents the characterization of natural pyrophyllite ore subjected to ultrasonic treatment at varying time intervals. The ultrasonic treatment aims to eliminate hard phases such as quartz and calcite within the ore, thereby improving its sorption capabilities. The treated samples were subjected to analysis using SEM and XRD techniques. Morphological and structural analysis revealed that as the duration of ultrasonic treatment increased, the proportion of hard phases in the sample decreased. Additionally, this study evaluated the sorption properties of pyrophyllite. A comparative analysis was conducted between a raw clay sample containing various admixtures and a sample that underwent a 30-minute ultrasonic treatment. The sorption of a methylene blue solution after 24 hours in water was assessed, with UV-Vis analysis revealing that the efficiency of the sonically treated pyrophyllite exceeded 97%, whereas the raw ore exhibited approximately 89% efficiency over the same duration. These findings suggest that the removal of hard phases from pyrophyllite ore enhances its sorption properties",
publisher = "Belgrade : Institute of Technical Sciences of SASA",
journal = "21st Young Researchers' Conference Materials Sciences and Engineering : program and the book of abstracts",
title = "Improvement of sorption properties of natural clay pyrophyllite by ultrasonic treatment",
pages = "22-22",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12305"
}

Tošić, K., Mitrović Rajić, A., Milošević Govedarović, S., Mijaković, S., Vujačić Nikezić, A. V., Grbović Novaković, J.,& Paskaš Mamula, B.. (2023). Improvement of sorption properties of natural clay pyrophyllite by ultrasonic treatment. in 21st Young Researchers' Conference Materials Sciences and Engineering : program and the book of abstracts
Belgrade : Institute of Technical Sciences of SASA., 22-22.
https://hdl.handle.net/21.15107/rcub_vinar_12305

Tošić K, Mitrović Rajić A, Milošević Govedarović S, Mijaković S, Vujačić Nikezić AV, Grbović Novaković J, Paskaš Mamula B. Improvement of sorption properties of natural clay pyrophyllite by ultrasonic treatment. in 21st Young Researchers' Conference Materials Sciences and Engineering : program and the book of abstracts. 2023;:22-22.
https://hdl.handle.net/21.15107/rcub_vinar_12305 .

Tošić, Katarina, Mitrović Rajić, Anđela, Milošević Govedarović, Sanja, Mijaković, Sara, Vujačić Nikezić, Ana V., Grbović Novaković, Jasmina, Paskaš Mamula, Bojana, "Improvement of sorption properties of natural clay pyrophyllite by ultrasonic treatment" in 21st Young Researchers' Conference Materials Sciences and Engineering : program and the book of abstracts (2023):22-22,
https://hdl.handle.net/21.15107/rcub_vinar_12305 .

TY  - CONF
AU  - Mijaković, Sara
AU  - Grbović Novaković, Jasmina
AU  - Tošić, Katarina
AU  - Mitrović Rajić, Anđela
AU  - Paskaš Mamula, Bojana
AU  - Vujačić Nikezić, Ana
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12319
AB  - Nanocomposites synthesized by incorporating nanostructured materials within the interlayer spaces of clay minerals have gained tremendous interest lately, owing to their exceptional physicochemical properties and vast potential in various fields. This study focuses on the mechanochemical activation of pyrophyllite, a commonly used natural clay material, using AgNO3 at different concentrations (2, 5, and 10 wt%). The activation process involved grinding the materials for varying durations ranging from 20 to 320 minutes. The resulting samples were analyzed using FTIR, TGA, and DTA thermal analysis techniques, XRD, SEM with EDX as well as PSD method for particle size distribution analysis. The results have shown a homogeneous distribution of silver along the analyzed surface. The duration of grinding and the amount of added silver greatly influence the composite physicochemical properties.
PB  - Belgrade : Institute of Technical Sciences of SASA
C3  - 21st Young Researchers' Conference Materials Sciences and Engineering : program and the book of abstracts
T1  - Physicochemical characterization of mechanochemically activated pyrophyllite/Ag composites
SP  - 46
EP  - 46
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12319
ER  - 

@conference{
author = "Mijaković, Sara and Grbović Novaković, Jasmina and Tošić, Katarina and Mitrović Rajić, Anđela and Paskaš Mamula, Bojana and Vujačić Nikezić, Ana",
year = "2023",
abstract = "Nanocomposites synthesized by incorporating nanostructured materials within the interlayer spaces of clay minerals have gained tremendous interest lately, owing to their exceptional physicochemical properties and vast potential in various fields. This study focuses on the mechanochemical activation of pyrophyllite, a commonly used natural clay material, using AgNO3 at different concentrations (2, 5, and 10 wt%). The activation process involved grinding the materials for varying durations ranging from 20 to 320 minutes. The resulting samples were analyzed using FTIR, TGA, and DTA thermal analysis techniques, XRD, SEM with EDX as well as PSD method for particle size distribution analysis. The results have shown a homogeneous distribution of silver along the analyzed surface. The duration of grinding and the amount of added silver greatly influence the composite physicochemical properties.",
publisher = "Belgrade : Institute of Technical Sciences of SASA",
journal = "21st Young Researchers' Conference Materials Sciences and Engineering : program and the book of abstracts",
title = "Physicochemical characterization of mechanochemically activated pyrophyllite/Ag composites",
pages = "46-46",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12319"
}

Mijaković, S., Grbović Novaković, J., Tošić, K., Mitrović Rajić, A., Paskaš Mamula, B.,& Vujačić Nikezić, A.. (2023). Physicochemical characterization of mechanochemically activated pyrophyllite/Ag composites. in 21st Young Researchers' Conference Materials Sciences and Engineering : program and the book of abstracts
Belgrade : Institute of Technical Sciences of SASA., 46-46.
https://hdl.handle.net/21.15107/rcub_vinar_12319

Mijaković S, Grbović Novaković J, Tošić K, Mitrović Rajić A, Paskaš Mamula B, Vujačić Nikezić A. Physicochemical characterization of mechanochemically activated pyrophyllite/Ag composites. in 21st Young Researchers' Conference Materials Sciences and Engineering : program and the book of abstracts. 2023;:46-46.
https://hdl.handle.net/21.15107/rcub_vinar_12319 .

Mijaković, Sara, Grbović Novaković, Jasmina, Tošić, Katarina, Mitrović Rajić, Anđela, Paskaš Mamula, Bojana, Vujačić Nikezić, Ana, "Physicochemical characterization of mechanochemically activated pyrophyllite/Ag composites" in 21st Young Researchers' Conference Materials Sciences and Engineering : program and the book of abstracts (2023):46-46,
https://hdl.handle.net/21.15107/rcub_vinar_12319 .

TY  - CONF
AU  - Grbović Novaković, Jasmina
AU  - Mitrović Rajić, Anđela
AU  - Tošić, Katarina
AU  - Mijaković, Sara
AU  - Milošević Govedarović, Sanja
AU  - Vujačić Nikezić, Ana
AU  - Paskaš Mamula, Bojana
AU  - Kustura, Jasmina
AU  - Kurtanović, Enita
AU  - Halilhodžić, Belma
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12508
AB  - The work aims to design a pyrophyllite-modified carbon paste electrode for pesticide detection in aqueous solutions. The structural and morphological characterization of natural pyrophyllite clay for Parsovići mine, Bosnia and Herzegovina, and mechanically modified pyrophyllite was performed using X-ray diffraction analysis (XRD), scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR) and particle size analysis (PSD). The electrochemical characteristics of the constructed electrode were investigated using cyclic voltammetry in 1 mM K4Fe(CN)6 in 0.1 M KCl and 0.5 M H2SO4 and differential pulse stripping voltammetry in Britton- Robinson buffer at pH 2-8. It was shown that the maximum at + 0.96 V versus Ag/AgCl originates from oxidation by carbendazim at pH 4 in the Britton-Robinson buffer. The electrode designed in this way showed numerous advantages such as good stability and sensitivity. The developed analytical method is linear over the range of 1 ppm to 10 ppm with r=0.999 and a detection limit of 0.3 ppm.
PB  - Zenica : Univerzitet u Zenici, Metalurško-tehnološki fakultet
C3  - 14th Scientific - Research Symposium with International Participation "Metallic and Nonmetallic Materials" : Book of Abstracts with Electronic Edition of Proceedings = XIV Naučno - stručni simpozijum sa međunarodnim učešćem "Metalni i nemetalni materijali" : knjiga abstrakta sa elektronskim izdanjem Zbornika radova
T1  - Pyrophyllite-Modified Carbon Paste Electrode for Carbendazim Detection in Water and Food
SP  - 1
EP  - 9
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12508
ER  - 

@conference{
author = "Grbović Novaković, Jasmina and Mitrović Rajić, Anđela and Tošić, Katarina and Mijaković, Sara and Milošević Govedarović, Sanja and Vujačić Nikezić, Ana and Paskaš Mamula, Bojana and Kustura, Jasmina and Kurtanović, Enita and Halilhodžić, Belma",
year = "2023",
abstract = "The work aims to design a pyrophyllite-modified carbon paste electrode for pesticide detection in aqueous solutions. The structural and morphological characterization of natural pyrophyllite clay for Parsovići mine, Bosnia and Herzegovina, and mechanically modified pyrophyllite was performed using X-ray diffraction analysis (XRD), scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR) and particle size analysis (PSD). The electrochemical characteristics of the constructed electrode were investigated using cyclic voltammetry in 1 mM K4Fe(CN)6 in 0.1 M KCl and 0.5 M H2SO4 and differential pulse stripping voltammetry in Britton- Robinson buffer at pH 2-8. It was shown that the maximum at + 0.96 V versus Ag/AgCl originates from oxidation by carbendazim at pH 4 in the Britton-Robinson buffer. The electrode designed in this way showed numerous advantages such as good stability and sensitivity. The developed analytical method is linear over the range of 1 ppm to 10 ppm with r=0.999 and a detection limit of 0.3 ppm.",
publisher = "Zenica : Univerzitet u Zenici, Metalurško-tehnološki fakultet",
journal = "14th Scientific - Research Symposium with International Participation "Metallic and Nonmetallic Materials" : Book of Abstracts with Electronic Edition of Proceedings = XIV Naučno - stručni simpozijum sa međunarodnim učešćem "Metalni i nemetalni materijali" : knjiga abstrakta sa elektronskim izdanjem Zbornika radova",
title = "Pyrophyllite-Modified Carbon Paste Electrode for Carbendazim Detection in Water and Food",
pages = "1-9",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12508"
}

Grbović Novaković, J., Mitrović Rajić, A., Tošić, K., Mijaković, S., Milošević Govedarović, S., Vujačić Nikezić, A., Paskaš Mamula, B., Kustura, J., Kurtanović, E.,& Halilhodžić, B.. (2023). Pyrophyllite-Modified Carbon Paste Electrode for Carbendazim Detection in Water and Food. in 14th Scientific - Research Symposium with International Participation "Metallic and Nonmetallic Materials" : Book of Abstracts with Electronic Edition of Proceedings = XIV Naučno - stručni simpozijum sa međunarodnim učešćem "Metalni i nemetalni materijali" : knjiga abstrakta sa elektronskim izdanjem Zbornika radova
Zenica : Univerzitet u Zenici, Metalurško-tehnološki fakultet., 1-9.
https://hdl.handle.net/21.15107/rcub_vinar_12508

Grbović Novaković J, Mitrović Rajić A, Tošić K, Mijaković S, Milošević Govedarović S, Vujačić Nikezić A, Paskaš Mamula B, Kustura J, Kurtanović E, Halilhodžić B. Pyrophyllite-Modified Carbon Paste Electrode for Carbendazim Detection in Water and Food. in 14th Scientific - Research Symposium with International Participation "Metallic and Nonmetallic Materials" : Book of Abstracts with Electronic Edition of Proceedings = XIV Naučno - stručni simpozijum sa međunarodnim učešćem "Metalni i nemetalni materijali" : knjiga abstrakta sa elektronskim izdanjem Zbornika radova. 2023;:1-9.
https://hdl.handle.net/21.15107/rcub_vinar_12508 .

Grbović Novaković, Jasmina, Mitrović Rajić, Anđela, Tošić, Katarina, Mijaković, Sara, Milošević Govedarović, Sanja, Vujačić Nikezić, Ana, Paskaš Mamula, Bojana, Kustura, Jasmina, Kurtanović, Enita, Halilhodžić, Belma, "Pyrophyllite-Modified Carbon Paste Electrode for Carbendazim Detection in Water and Food" in 14th Scientific - Research Symposium with International Participation "Metallic and Nonmetallic Materials" : Book of Abstracts with Electronic Edition of Proceedings = XIV Naučno - stručni simpozijum sa međunarodnim učešćem "Metalni i nemetalni materijali" : knjiga abstrakta sa elektronskim izdanjem Zbornika radova (2023):1-9,
https://hdl.handle.net/21.15107/rcub_vinar_12508 .

TY  - CONF
AU  - Mitrović Rajić, Anđela
AU  - Tošić, Katarina
AU  - Mijaković, Sara
AU  - Milošević Govedarović, Sanja
AU  - Vujačić Nikezić, Ana
AU  - Paskaš Mamula, Bojana
AU  - Grbović Novaković, Jasmina
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12513
AB  - Ovaj rad ima za cilj da dizajnira elektrodu od ugljenične paste modifikovanu pirofilitom za
potencijalnu upotrebu za detekciju pesticida u vodenim rastvorima. Strukturna i morfološka
karakterizacija prirodne gline pirofilit i mehanički modifikovanog pirofilita urađena je
rendgenostrukturnom analizom i skenirajućom elektronskom mikroskopijom. Elektrohemijske
karakteristike ove elektrode ispitivane su cikličnom voltametrijom u 1 mM K4Fe(CN)6 u 0,1 M
KCl i 0,5 M H2SO4 i diferencijalnom pulsnom „striping“ voltametrijom u Briton-Robinsonovom
puferu na pH 4. Pokazano je da maksimum na + 0,96 V u odnosu na Ag/AgCl elektrodu potiče
od oksidacije karbendazima na pH 4 u Briton-Robinsonovom puferu. Dobru stabilnost i
osetljivost pokazala je elektroda koja je sadržala 50% ugljenične paste i 50% pirofilita mehanički
modifikovanog 15 minuta u mlinu sa kuglama. Razvijena metoda je linearna u opsegu od 1 ppm
do 10 ppm sa r= 0,999 i granicom detekcije od 0,3 ppm.
PB  - Novi Sad : Prirodno-matematički fakultet
C3  - 10. memorijalni naučni skup iz zaštite životne sredine "docent dr Milena Dalmacija" : Knjiga radova
T1  - Detekcija fungicida karbendazima u vodi primenom elektrode od ugljenične paste modifikovane pirofilitom
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12513
ER  - 

@conference{
author = "Mitrović Rajić, Anđela and Tošić, Katarina and Mijaković, Sara and Milošević Govedarović, Sanja and Vujačić Nikezić, Ana and Paskaš Mamula, Bojana and Grbović Novaković, Jasmina",
year = "2023",
abstract = "Ovaj rad ima za cilj da dizajnira elektrodu od ugljenične paste modifikovanu pirofilitom za
potencijalnu upotrebu za detekciju pesticida u vodenim rastvorima. Strukturna i morfološka
karakterizacija prirodne gline pirofilit i mehanički modifikovanog pirofilita urađena je
rendgenostrukturnom analizom i skenirajućom elektronskom mikroskopijom. Elektrohemijske
karakteristike ove elektrode ispitivane su cikličnom voltametrijom u 1 mM K4Fe(CN)6 u 0,1 M
KCl i 0,5 M H2SO4 i diferencijalnom pulsnom „striping“ voltametrijom u Briton-Robinsonovom
puferu na pH 4. Pokazano je da maksimum na + 0,96 V u odnosu na Ag/AgCl elektrodu potiče
od oksidacije karbendazima na pH 4 u Briton-Robinsonovom puferu. Dobru stabilnost i
osetljivost pokazala je elektroda koja je sadržala 50% ugljenične paste i 50% pirofilita mehanički
modifikovanog 15 minuta u mlinu sa kuglama. Razvijena metoda je linearna u opsegu od 1 ppm
do 10 ppm sa r= 0,999 i granicom detekcije od 0,3 ppm.",
publisher = "Novi Sad : Prirodno-matematički fakultet",
journal = "10. memorijalni naučni skup iz zaštite životne sredine "docent dr Milena Dalmacija" : Knjiga radova",
title = "Detekcija fungicida karbendazima u vodi primenom elektrode od ugljenične paste modifikovane pirofilitom",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12513"
}

Mitrović Rajić, A., Tošić, K., Mijaković, S., Milošević Govedarović, S., Vujačić Nikezić, A., Paskaš Mamula, B.,& Grbović Novaković, J.. (2023). Detekcija fungicida karbendazima u vodi primenom elektrode od ugljenične paste modifikovane pirofilitom. in 10. memorijalni naučni skup iz zaštite životne sredine "docent dr Milena Dalmacija" : Knjiga radova
Novi Sad : Prirodno-matematički fakultet..
https://hdl.handle.net/21.15107/rcub_vinar_12513

Mitrović Rajić A, Tošić K, Mijaković S, Milošević Govedarović S, Vujačić Nikezić A, Paskaš Mamula B, Grbović Novaković J. Detekcija fungicida karbendazima u vodi primenom elektrode od ugljenične paste modifikovane pirofilitom. in 10. memorijalni naučni skup iz zaštite životne sredine "docent dr Milena Dalmacija" : Knjiga radova. 2023;.
https://hdl.handle.net/21.15107/rcub_vinar_12513 .

Mitrović Rajić, Anđela, Tošić, Katarina, Mijaković, Sara, Milošević Govedarović, Sanja, Vujačić Nikezić, Ana, Paskaš Mamula, Bojana, Grbović Novaković, Jasmina, "Detekcija fungicida karbendazima u vodi primenom elektrode od ugljenične paste modifikovane pirofilitom" in 10. memorijalni naučni skup iz zaštite životne sredine "docent dr Milena Dalmacija" : Knjiga radova (2023),
https://hdl.handle.net/21.15107/rcub_vinar_12513 .

TY  - JOUR
AU  - Mitrović Rajić, Anđela
AU  - Pantić, Tijana
AU  - Milošević-Govedarović, Sanja
AU  - Paskaš Mamula, Bojana
AU  - Filipović, Nenad
AU  - Grbović Novaković, Jasmina
AU  - Dimitrijević, Silvana
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12882
AB  - The effect of mechanical milling on the thermal behavior of pyrophyllite ore from a deposit in Parsovići, Bosnia and Herzegovina, was characterized by X-ray powder diffraction, Fourier transform infrared spectroscopy, scanning electron microscopy, and Particle size distribution. The thermal behavior of the material was followed by thermogravimetric and differential thermal analysis and correlated to its microstructural properties. The Williamson-Hall model was used to calculate the crystallite size and microstrain. Mechanochemical treatment of pyrophyllite ore produced a substantial structural modification, mainly along the c axis, resulting in disorder and partial degradation of the crystal structure of the ore. The particle size diminution, induced defects, and microstrain in the crystal lattice cause decrease in the peak intensity until the final disappearance. As confirmed by scanning electron microscopy and particle-size-distribution analysis, the surface area and the agglomeration is more pronounced as grinding time increases. Dehydroxylation of the minerals in the unmilled ore was realized at 716oC confirm by FTIR analysis. The endothermic peak that corresponds to dehydroxylation is shifted toward lower temperatures and becomes broad giving rise to the formation of amorphous SiO2 as milling time increases.
T2  - Science of Sintering
T1  - Influence of mechanochemical activation on the thermal behavior of pyrophyllite
VL  - 55
SP  - 453
EP  - 467
DO  - 10.2298/SOS220715018M
ER  - 

@article{
author = "Mitrović Rajić, Anđela and Pantić, Tijana and Milošević-Govedarović, Sanja and Paskaš Mamula, Bojana and Filipović, Nenad and Grbović Novaković, Jasmina and Dimitrijević, Silvana",
year = "2023",
abstract = "The effect of mechanical milling on the thermal behavior of pyrophyllite ore from a deposit in Parsovići, Bosnia and Herzegovina, was characterized by X-ray powder diffraction, Fourier transform infrared spectroscopy, scanning electron microscopy, and Particle size distribution. The thermal behavior of the material was followed by thermogravimetric and differential thermal analysis and correlated to its microstructural properties. The Williamson-Hall model was used to calculate the crystallite size and microstrain. Mechanochemical treatment of pyrophyllite ore produced a substantial structural modification, mainly along the c axis, resulting in disorder and partial degradation of the crystal structure of the ore. The particle size diminution, induced defects, and microstrain in the crystal lattice cause decrease in the peak intensity until the final disappearance. As confirmed by scanning electron microscopy and particle-size-distribution analysis, the surface area and the agglomeration is more pronounced as grinding time increases. Dehydroxylation of the minerals in the unmilled ore was realized at 716oC confirm by FTIR analysis. The endothermic peak that corresponds to dehydroxylation is shifted toward lower temperatures and becomes broad giving rise to the formation of amorphous SiO2 as milling time increases.",
journal = "Science of Sintering",
title = "Influence of mechanochemical activation on the thermal behavior of pyrophyllite",
volume = "55",
pages = "453-467",
doi = "10.2298/SOS220715018M"
}

Mitrović Rajić, A., Pantić, T., Milošević-Govedarović, S., Paskaš Mamula, B., Filipović, N., Grbović Novaković, J.,& Dimitrijević, S.. (2023). Influence of mechanochemical activation on the thermal behavior of pyrophyllite. in Science of Sintering, 55, 453-467.
https://doi.org/10.2298/SOS220715018M

Mitrović Rajić A, Pantić T, Milošević-Govedarović S, Paskaš Mamula B, Filipović N, Grbović Novaković J, Dimitrijević S. Influence of mechanochemical activation on the thermal behavior of pyrophyllite. in Science of Sintering. 2023;55:453-467.
doi:10.2298/SOS220715018M .

Mitrović Rajić, Anđela, Pantić, Tijana, Milošević-Govedarović, Sanja, Paskaš Mamula, Bojana, Filipović, Nenad, Grbović Novaković, Jasmina, Dimitrijević, Silvana, "Influence of mechanochemical activation on the thermal behavior of pyrophyllite" in Science of Sintering, 55 (2023):453-467,
https://doi.org/10.2298/SOS220715018M . .

TY  - JOUR
AU  - Mitrović Rajić, Anđela I.
AU  - Milićević, Jelena S.
AU  - Grbović-Novaković, Jasmina
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10472
AB  - This study aims to design the pyrophyllite-adapted carbon paste electrode (pCPE) and test it for potential use in wastewater purification systems. Structural characterization of pure pyrophyllite ore and mechanically modified pyrophyllite in mortar and pestle has been followed by XRD, SEM, PSA, and FTIR. Electrochemical characteristics were studied by cyclic voltammetry of pyrophyllite CPE in sulfuric acid and potassium ferrocyanide, as redox model compounds. Delamination, gliding, and folding of the layers and a decrease in particle and crystallite size have been observed, leading to the excellent electrocatalytic activity of pCPE. The developed pCPE has numerous benefits such as a simple preparation method, rapid response, and good sensitivity. The oxidation peak of carbendazim appears in Britton-Robinson buffer solutions (pH 4) at +0.9 V vs. Ag/AgCl. The developed method is linear in the concentration range of 3.2–29.2 ng cm−3, with r = 0.999 and the limit of detection of 1.9 ng cm−3.
T2  - Materials and Manufacturing Processes
T1  - Development of modified pyrophyllite carbon paste electrode for carbendazim detection
VL  - 38
IS  - 13
SP  - 1
EP  - 7
DO  - 10.1080/10426914.2022.2136386
ER  - 

@article{
author = "Mitrović Rajić, Anđela I. and Milićević, Jelena S. and Grbović-Novaković, Jasmina",
year = "2023",
abstract = "This study aims to design the pyrophyllite-adapted carbon paste electrode (pCPE) and test it for potential use in wastewater purification systems. Structural characterization of pure pyrophyllite ore and mechanically modified pyrophyllite in mortar and pestle has been followed by XRD, SEM, PSA, and FTIR. Electrochemical characteristics were studied by cyclic voltammetry of pyrophyllite CPE in sulfuric acid and potassium ferrocyanide, as redox model compounds. Delamination, gliding, and folding of the layers and a decrease in particle and crystallite size have been observed, leading to the excellent electrocatalytic activity of pCPE. The developed pCPE has numerous benefits such as a simple preparation method, rapid response, and good sensitivity. The oxidation peak of carbendazim appears in Britton-Robinson buffer solutions (pH 4) at +0.9 V vs. Ag/AgCl. The developed method is linear in the concentration range of 3.2–29.2 ng cm−3, with r = 0.999 and the limit of detection of 1.9 ng cm−3.",
journal = "Materials and Manufacturing Processes",
title = "Development of modified pyrophyllite carbon paste electrode for carbendazim detection",
volume = "38",
number = "13",
pages = "1-7",
doi = "10.1080/10426914.2022.2136386"
}

Mitrović Rajić, A. I., Milićević, J. S.,& Grbović-Novaković, J.. (2023). Development of modified pyrophyllite carbon paste electrode for carbendazim detection. in Materials and Manufacturing Processes, 38(13), 1-7.
https://doi.org/10.1080/10426914.2022.2136386

Mitrović Rajić AI, Milićević JS, Grbović-Novaković J. Development of modified pyrophyllite carbon paste electrode for carbendazim detection. in Materials and Manufacturing Processes. 2023;38(13):1-7.
doi:10.1080/10426914.2022.2136386 .

Mitrović Rajić, Anđela I., Milićević, Jelena S., Grbović-Novaković, Jasmina, "Development of modified pyrophyllite carbon paste electrode for carbendazim detection" in Materials and Manufacturing Processes, 38, no. 13 (2023):1-7,
https://doi.org/10.1080/10426914.2022.2136386 . .

TY  - CONF
AU  - Grbović Novaković,  Jasmina
AU  - Mitrović Rajić, Anđela
AU  - Pantić, T.
AU  - Milošević Govedarović, Sanja
AU  - Novaković, Nikola
AU  - Rmuš Mravik, Jelena
AU  - Paskaš-Mamula, Bojana
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12738
AB  - The main goal is to develop electrode material for the detection of traces of pesticides in food and water in a wide range of pH values. The leading idea is to use natural clay pyrophyllite to modify carbon paste electrode. SPEX Mixer/Mill 5100 is used for mechanochemical modification. The changes in the structure of pyrophyllite before and after the grinding process were studied by means of PSD, XRD, FTIR, and DTA-TG [1]. The electrochemical behavior of the sensor was followed using differential pulse stripping voltammetry (DPSV). It is shown that obtained material can be used as electrodes in electrochemical sensors for pesticide detection in a wide range of pH.
PB  - Zagreb, Croatia : Ruđer Bošković Institute
C3  - Solid-State Science & Research Meeting : Book of abstracts and programme
T1  - Pyrophyllite modified carbon-based electrode
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12738
ER  - 

@conference{
author = "Grbović Novaković,  Jasmina and Mitrović Rajić, Anđela and Pantić, T. and Milošević Govedarović, Sanja and Novaković, Nikola and Rmuš Mravik, Jelena and Paskaš-Mamula, Bojana",
year = "2023",
abstract = "The main goal is to develop electrode material for the detection of traces of pesticides in food and water in a wide range of pH values. The leading idea is to use natural clay pyrophyllite to modify carbon paste electrode. SPEX Mixer/Mill 5100 is used for mechanochemical modification. The changes in the structure of pyrophyllite before and after the grinding process were studied by means of PSD, XRD, FTIR, and DTA-TG [1]. The electrochemical behavior of the sensor was followed using differential pulse stripping voltammetry (DPSV). It is shown that obtained material can be used as electrodes in electrochemical sensors for pesticide detection in a wide range of pH.",
publisher = "Zagreb, Croatia : Ruđer Bošković Institute",
journal = "Solid-State Science & Research Meeting : Book of abstracts and programme",
title = "Pyrophyllite modified carbon-based electrode",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12738"
}

Grbović Novaković, J., Mitrović Rajić, A., Pantić, T., Milošević Govedarović, S., Novaković, N., Rmuš Mravik, J.,& Paskaš-Mamula, B.. (2023). Pyrophyllite modified carbon-based electrode. in Solid-State Science & Research Meeting : Book of abstracts and programme
Zagreb, Croatia : Ruđer Bošković Institute..
https://hdl.handle.net/21.15107/rcub_vinar_12738

Grbović Novaković J, Mitrović Rajić A, Pantić T, Milošević Govedarović S, Novaković N, Rmuš Mravik J, Paskaš-Mamula B. Pyrophyllite modified carbon-based electrode. in Solid-State Science & Research Meeting : Book of abstracts and programme. 2023;.
https://hdl.handle.net/21.15107/rcub_vinar_12738 .

Grbović Novaković,  Jasmina, Mitrović Rajić, Anđela, Pantić, T., Milošević Govedarović, Sanja, Novaković, Nikola, Rmuš Mravik, Jelena, Paskaš-Mamula, Bojana, "Pyrophyllite modified carbon-based electrode" in Solid-State Science & Research Meeting : Book of abstracts and programme (2023),
https://hdl.handle.net/21.15107/rcub_vinar_12738 .

TY  - CONF
AU  - Babić, Bojana
AU  - Prvulović, Milica
AU  - Rmuš, Jelena
AU  - Mitrović Rajić, Anđela
AU  - Milošević Govedarović, Sanja
AU  - Milanović, Igor
AU  - Kurko, Sandra
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12765
AB  - Metal and complex light hydrides are the best fitted materials for hydrogen storage within the concept of hydrogen based economy [1]. They meet the basic application requirements: low-cost, safety and they are environmentally friendly. Beside their benefits, as relatively stable compounds, these materials exhibit also some undesirable properties like sluggish kinetics and high temperature of hydrogen desorption. LiAlH4 has emerged as a potential material for solid-state hydrogen storage because of its high hydrogen gravimetric capacity (10.5 wt%). It decomposes in three steps, according to the reactions [2]: 3LiAlH4 → Li3AlH6 + 2Al + H2                             (R1) Li3AlH6 → 3LiH + Al + 3/2H2               (R2) 3LiH+3Al → 3LiAl + 3/2H2                              (R3) The temperature of the first reaction is between 150-175°C, of the second between 180-220°C and the third between 400420°C. The first two reactions (R1 and R2) are very important from the hydrogen storage point of view: (i) both take place at a reasonable low temperatures and (ii) overall sum of theirs gravimetric hydrogen capacity is 7.8 wt.%, so the reactions (R1) and (R2) are accessible for practical hydrogen storage. However, the slow dehydrogenation kinetics and irreversibility under moderate condition hinder its imminent application.  Particle refinement and catalyst or additive introduction by mechanical milling led to the significant improvement of LiAlH4 hydrogen storage properties [2].  However, during the milling process, the temperature in the milling chamber can significantly increase reaching the temperature of R1 or even R2 leading to the degradation of hydride, change in the hydrogen desorption mechanism (figure 1) and decrease in the hydrogen storage capacity of material [3]. So, in this work the impact of metallic (V, Mn an Cr) and metal oxide (Fe2O3 and Nb2O5) additives on the LiAlH4 hydrogen desorption properties with the emphasis on the hydride degradation process during milling and a consequent hydrogen desorption reaction mechanism was studied. The aim was to improve the hydrogen desorption kinetics without hydrogen capacity deterioration.
PB  - Split : University of Split
C3  - mESC-IS 2022 : 6th International Symposium on Materials for Energy Storage and Conversion : Book of abstracts
T1  - Effect of metalic and metal-oxide catalysts on LiAlH4 decomposition
SP  - 23
EP  - 23
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12765
ER  - 

@conference{
author = "Babić, Bojana and Prvulović, Milica and Rmuš, Jelena and Mitrović Rajić, Anđela and Milošević Govedarović, Sanja and Milanović, Igor and Kurko, Sandra",
year = "2022",
abstract = "Metal and complex light hydrides are the best fitted materials for hydrogen storage within the concept of hydrogen based economy [1]. They meet the basic application requirements: low-cost, safety and they are environmentally friendly. Beside their benefits, as relatively stable compounds, these materials exhibit also some undesirable properties like sluggish kinetics and high temperature of hydrogen desorption. LiAlH4 has emerged as a potential material for solid-state hydrogen storage because of its high hydrogen gravimetric capacity (10.5 wt%). It decomposes in three steps, according to the reactions [2]: 3LiAlH4 → Li3AlH6 + 2Al + H2                             (R1) Li3AlH6 → 3LiH + Al + 3/2H2               (R2) 3LiH+3Al → 3LiAl + 3/2H2                              (R3) The temperature of the first reaction is between 150-175°C, of the second between 180-220°C and the third between 400420°C. The first two reactions (R1 and R2) are very important from the hydrogen storage point of view: (i) both take place at a reasonable low temperatures and (ii) overall sum of theirs gravimetric hydrogen capacity is 7.8 wt.%, so the reactions (R1) and (R2) are accessible for practical hydrogen storage. However, the slow dehydrogenation kinetics and irreversibility under moderate condition hinder its imminent application.  Particle refinement and catalyst or additive introduction by mechanical milling led to the significant improvement of LiAlH4 hydrogen storage properties [2].  However, during the milling process, the temperature in the milling chamber can significantly increase reaching the temperature of R1 or even R2 leading to the degradation of hydride, change in the hydrogen desorption mechanism (figure 1) and decrease in the hydrogen storage capacity of material [3]. So, in this work the impact of metallic (V, Mn an Cr) and metal oxide (Fe2O3 and Nb2O5) additives on the LiAlH4 hydrogen desorption properties with the emphasis on the hydride degradation process during milling and a consequent hydrogen desorption reaction mechanism was studied. The aim was to improve the hydrogen desorption kinetics without hydrogen capacity deterioration.",
publisher = "Split : University of Split",
journal = "mESC-IS 2022 : 6th International Symposium on Materials for Energy Storage and Conversion : Book of abstracts",
title = "Effect of metalic and metal-oxide catalysts on LiAlH4 decomposition",
pages = "23-23",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12765"
}

Babić, B., Prvulović, M., Rmuš, J., Mitrović Rajić, A., Milošević Govedarović, S., Milanović, I.,& Kurko, S.. (2022). Effect of metalic and metal-oxide catalysts on LiAlH4 decomposition. in mESC-IS 2022 : 6th International Symposium on Materials for Energy Storage and Conversion : Book of abstracts
Split : University of Split., 23-23.
https://hdl.handle.net/21.15107/rcub_vinar_12765

Babić B, Prvulović M, Rmuš J, Mitrović Rajić A, Milošević Govedarović S, Milanović I, Kurko S. Effect of metalic and metal-oxide catalysts on LiAlH4 decomposition. in mESC-IS 2022 : 6th International Symposium on Materials for Energy Storage and Conversion : Book of abstracts. 2022;:23-23.
https://hdl.handle.net/21.15107/rcub_vinar_12765 .

Babić, Bojana, Prvulović, Milica, Rmuš, Jelena, Mitrović Rajić, Anđela, Milošević Govedarović, Sanja, Milanović, Igor, Kurko, Sandra, "Effect of metalic and metal-oxide catalysts on LiAlH4 decomposition" in mESC-IS 2022 : 6th International Symposium on Materials for Energy Storage and Conversion : Book of abstracts (2022):23-23,
https://hdl.handle.net/21.15107/rcub_vinar_12765 .

TY  - JOUR
AU  - Milanović, Igor
AU  - Milošević Govedarović, Sanja S.
AU  - Lukić, Miodrag
AU  - Jovanović, Zoran
AU  - Rmuš, Jelena
AU  - Mitrović-Rajić, Anđela
AU  - Grbović-Novaković, Jasmina
AU  - Kurko, Sandra V.
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10504
AB  - LiAlH4 was modified by mechanical milling and with the addition of 5 wt.% Fe2O3 in order to improve its hydrogen desorption properties. The composite was milled for 1, 3, 5, 7 or 15min, and depending on the milling time, various phenomena took place. Up to a milling time of 5min, the particle size of the composite decreases. Further milling leads to the particles agglomeration reaching the size of the starting material after 15min. Moreover, the mechanical milling process leads to the transformation of AlH - 4 to AlH 3 - 6 structure as a result of partial hydrogen desorption. Hydrogen desorption during the milling is the most pronounced in the sample milled for 15min, so this sample has only one hydrogen desorption peak in the temperature-programmed desorption measurements.Mechanical milling with the addition of Fe2O3 for up to 15min improves LiAlH4 hydrogen desorption properties as hydrogen desorption temperature and apparent activation energies decrease.
T2  - Processing and Application of Ceramics
T1  - Study of milling time impact on hydrogen desorption from LiAlH4-Fe2O3 composites
VL  - 16
IS  - 3
SP  - 259
EP  - 266
DO  - 10.2298/PAC2203259M
ER  - 

@article{
author = "Milanović, Igor and Milošević Govedarović, Sanja S. and Lukić, Miodrag and Jovanović, Zoran and Rmuš, Jelena and Mitrović-Rajić, Anđela and Grbović-Novaković, Jasmina and Kurko, Sandra V.",
year = "2022",
abstract = "LiAlH4 was modified by mechanical milling and with the addition of 5 wt.% Fe2O3 in order to improve its hydrogen desorption properties. The composite was milled for 1, 3, 5, 7 or 15min, and depending on the milling time, various phenomena took place. Up to a milling time of 5min, the particle size of the composite decreases. Further milling leads to the particles agglomeration reaching the size of the starting material after 15min. Moreover, the mechanical milling process leads to the transformation of AlH - 4 to AlH 3 - 6 structure as a result of partial hydrogen desorption. Hydrogen desorption during the milling is the most pronounced in the sample milled for 15min, so this sample has only one hydrogen desorption peak in the temperature-programmed desorption measurements.Mechanical milling with the addition of Fe2O3 for up to 15min improves LiAlH4 hydrogen desorption properties as hydrogen desorption temperature and apparent activation energies decrease.",
journal = "Processing and Application of Ceramics",
title = "Study of milling time impact on hydrogen desorption from LiAlH4-Fe2O3 composites",
volume = "16",
number = "3",
pages = "259-266",
doi = "10.2298/PAC2203259M"
}

Milanović, I., Milošević Govedarović, S. S., Lukić, M., Jovanović, Z., Rmuš, J., Mitrović-Rajić, A., Grbović-Novaković, J.,& Kurko, S. V.. (2022). Study of milling time impact on hydrogen desorption from LiAlH4-Fe2O3 composites. in Processing and Application of Ceramics, 16(3), 259-266.
https://doi.org/10.2298/PAC2203259M

Milanović I, Milošević Govedarović SS, Lukić M, Jovanović Z, Rmuš J, Mitrović-Rajić A, Grbović-Novaković J, Kurko SV. Study of milling time impact on hydrogen desorption from LiAlH4-Fe2O3 composites. in Processing and Application of Ceramics. 2022;16(3):259-266.
doi:10.2298/PAC2203259M .

Milanović, Igor, Milošević Govedarović, Sanja S., Lukić, Miodrag, Jovanović, Zoran, Rmuš, Jelena, Mitrović-Rajić, Anđela, Grbović-Novaković, Jasmina, Kurko, Sandra V., "Study of milling time impact on hydrogen desorption from LiAlH4-Fe2O3 composites" in Processing and Application of Ceramics, 16, no. 3 (2022):259-266,
https://doi.org/10.2298/PAC2203259M . .

TY  - CONF
AU  - Mitrović, Anđela I.
AU  - Milićević, Jelena
AU  - Milošević Govedarović, Sanja S.
AU  - Kurko, Sandra
AU  - Pantić, Tijana B.
AU  - Rmuš, Jelena
AU  - Mravik, Željko
AU  - Grbović-Novaković, Jasmina
PY  - 2019
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11182
PB  - Belgrade : Institute for Multidisciplinary Research, University of Belgrade
C3  - Advanced Ceramics and Application : 5th Conference of The Serbian Society for Ceramic Materials, 5CSCS-2019, June 11-13, 2019, Belgrade, Serbia
T1  - Electrochemical sensors based on pyrophyllite
SP  - 97
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11182
ER  - 

@conference{
author = "Mitrović, Anđela I. and Milićević, Jelena and Milošević Govedarović, Sanja S. and Kurko, Sandra and Pantić, Tijana B. and Rmuš, Jelena and Mravik, Željko and Grbović-Novaković, Jasmina",
year = "2019",
publisher = "Belgrade : Institute for Multidisciplinary Research, University of Belgrade",
journal = "Advanced Ceramics and Application : 5th Conference of The Serbian Society for Ceramic Materials, 5CSCS-2019, June 11-13, 2019, Belgrade, Serbia",
title = "Electrochemical sensors based on pyrophyllite",
pages = "97",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11182"
}

Mitrović, A. I., Milićević, J., Milošević Govedarović, S. S., Kurko, S., Pantić, T. B., Rmuš, J., Mravik, Ž.,& Grbović-Novaković, J.. (2019). Electrochemical sensors based on pyrophyllite. in Advanced Ceramics and Application : 5th Conference of The Serbian Society for Ceramic Materials, 5CSCS-2019, June 11-13, 2019, Belgrade, Serbia
Belgrade : Institute for Multidisciplinary Research, University of Belgrade., 97.
https://hdl.handle.net/21.15107/rcub_vinar_11182

Mitrović AI, Milićević J, Milošević Govedarović SS, Kurko S, Pantić TB, Rmuš J, Mravik Ž, Grbović-Novaković J. Electrochemical sensors based on pyrophyllite. in Advanced Ceramics and Application : 5th Conference of The Serbian Society for Ceramic Materials, 5CSCS-2019, June 11-13, 2019, Belgrade, Serbia. 2019;:97.
https://hdl.handle.net/21.15107/rcub_vinar_11182 .

Mitrović, Anđela I., Milićević, Jelena, Milošević Govedarović, Sanja S., Kurko, Sandra, Pantić, Tijana B., Rmuš, Jelena, Mravik, Željko, Grbović-Novaković, Jasmina, "Electrochemical sensors based on pyrophyllite" in Advanced Ceramics and Application : 5th Conference of The Serbian Society for Ceramic Materials, 5CSCS-2019, June 11-13, 2019, Belgrade, Serbia (2019):97,
https://hdl.handle.net/21.15107/rcub_vinar_11182 .