Omerašević, Mia

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  • Omerašević, Mia (33)

Author's Bibliography

Fabrication of Porous Anorthite Ceramic Insulation Using Solid Wastes

Omerašević, Mia; Pavkov, Vladimir; Rosić, Milena; Egerić, Marija; Nenadović, Snežana; Bučevac, Dušan; Potkonjak, Nebojša

(2024)

TY  - JOUR
AU  - Omerašević, Mia
AU  - Pavkov, Vladimir
AU  - Rosić, Milena
AU  - Egerić, Marija
AU  - Nenadović, Snežana
AU  - Bučevac, Dušan
AU  - Potkonjak, Nebojša
PY  - 2024
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/13094
AB  - Porous anorthite (CaAl2Si2O8) ceramics, suitable for thermal insulation in buildings, were obtained using waste seashells as a source of CaO, kaolin as a source of Al2O3 and SiO2 and banana peel as a pore former. Changing the volume of banana peel as well as the processing temperature was found to be an effective approach to control the thermo-mechanical properties of the obtained anorthite ceramics. The sintering of powder compacts containing up to 30 wt% banana peel at temperatures ranging from 1100 to 1200 °C resulted in anorthite ceramics possessing up to 45% open porosity, a compressive strength between 13 and 92 MPa, a bulk density between 1.87 and 2.62 g/cm3 and thermal conductivity between 0.097 and 3.5 W/mK. It was shown that waste materials such as seashells and banana peel can be used to obtain cost-effective thermal insulation in buildings.
T2  - Materials
T1  - Fabrication of Porous Anorthite Ceramic Insulation Using Solid Wastes
VL  - 17
IS  - 7
SP  - 1478
DO  - 10.3390/ma17071478
ER  - 
@article{
author = "Omerašević, Mia and Pavkov, Vladimir and Rosić, Milena and Egerić, Marija and Nenadović, Snežana and Bučevac, Dušan and Potkonjak, Nebojša",
year = "2024",
abstract = "Porous anorthite (CaAl2Si2O8) ceramics, suitable for thermal insulation in buildings, were obtained using waste seashells as a source of CaO, kaolin as a source of Al2O3 and SiO2 and banana peel as a pore former. Changing the volume of banana peel as well as the processing temperature was found to be an effective approach to control the thermo-mechanical properties of the obtained anorthite ceramics. The sintering of powder compacts containing up to 30 wt% banana peel at temperatures ranging from 1100 to 1200 °C resulted in anorthite ceramics possessing up to 45% open porosity, a compressive strength between 13 and 92 MPa, a bulk density between 1.87 and 2.62 g/cm3 and thermal conductivity between 0.097 and 3.5 W/mK. It was shown that waste materials such as seashells and banana peel can be used to obtain cost-effective thermal insulation in buildings.",
journal = "Materials",
title = "Fabrication of Porous Anorthite Ceramic Insulation Using Solid Wastes",
volume = "17",
number = "7",
pages = "1478",
doi = "10.3390/ma17071478"
}
Omerašević, M., Pavkov, V., Rosić, M., Egerić, M., Nenadović, S., Bučevac, D.,& Potkonjak, N.. (2024). Fabrication of Porous Anorthite Ceramic Insulation Using Solid Wastes. in Materials, 17(7), 1478.
https://doi.org/10.3390/ma17071478
Omerašević M, Pavkov V, Rosić M, Egerić M, Nenadović S, Bučevac D, Potkonjak N. Fabrication of Porous Anorthite Ceramic Insulation Using Solid Wastes. in Materials. 2024;17(7):1478.
doi:10.3390/ma17071478 .
Omerašević, Mia, Pavkov, Vladimir, Rosić, Milena, Egerić, Marija, Nenadović, Snežana, Bučevac, Dušan, Potkonjak, Nebojša, "Fabrication of Porous Anorthite Ceramic Insulation Using Solid Wastes" in Materials, 17, no. 7 (2024):1478,
https://doi.org/10.3390/ma17071478 . .

Mechanical properties and thermal shock resistance of anorthite ceramics obtained by slip casting

Omerašević, Mia; Krsmanović, Miomir; Radovanović, Željko; Bučevac, Dušan

(2024)

TY  - JOUR
AU  - Omerašević, Mia
AU  - Krsmanović, Miomir
AU  - Radovanović, Željko
AU  - Bučevac, Dušan
PY  - 2024
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12244
AB  - Anorthite ceramics (CaAl2Si2O8) was obtained by slip casting of water suspension of kaolin (Al2O3·2SiO2·2H2O) and CaCO3 as a source of CaO. A relative density of 87 % of the theoretical density was achieved after a 3-h-long sintering of green samples at 1200 °C. It was found that slip casting allows the fabrication of anorthite with relatively small pores (<8 μm) which was beneficial for achieving a high fracture strength of 129 MPa and good thermal shock resistance. For a quantitative measurement of thermal shock resistance, a critical temperature interval (ΔTc) was determined by a reduction in the mean fracture strength of at least 30 %. The experimentally determined ΔTc of 300 °C was higher than the value calculated by the equation assuming that the thermal stress created during quenching causes the fracture. It was found that the discrepancy between experimental and calculated values of ΔTc could be explained by an introduction of cracks of various sizes by indentation method and careful observation of crack growth initiation after quenching from various temperatures. It is believed that the reason for the discrepancy lies in the different nature of stress that was used in the theoretical calculation and the stress that acts during sample quenching.
T2  - Ceramics International
T1  - Mechanical properties and thermal shock resistance of anorthite ceramics obtained by slip casting
VL  - 50
IS  - 3 Part B
SP  - 5787
EP  - 5795
DO  - 10.1016/j.ceramint.2023.11.381
ER  - 
@article{
author = "Omerašević, Mia and Krsmanović, Miomir and Radovanović, Željko and Bučevac, Dušan",
year = "2024",
abstract = "Anorthite ceramics (CaAl2Si2O8) was obtained by slip casting of water suspension of kaolin (Al2O3·2SiO2·2H2O) and CaCO3 as a source of CaO. A relative density of 87 % of the theoretical density was achieved after a 3-h-long sintering of green samples at 1200 °C. It was found that slip casting allows the fabrication of anorthite with relatively small pores (<8 μm) which was beneficial for achieving a high fracture strength of 129 MPa and good thermal shock resistance. For a quantitative measurement of thermal shock resistance, a critical temperature interval (ΔTc) was determined by a reduction in the mean fracture strength of at least 30 %. The experimentally determined ΔTc of 300 °C was higher than the value calculated by the equation assuming that the thermal stress created during quenching causes the fracture. It was found that the discrepancy between experimental and calculated values of ΔTc could be explained by an introduction of cracks of various sizes by indentation method and careful observation of crack growth initiation after quenching from various temperatures. It is believed that the reason for the discrepancy lies in the different nature of stress that was used in the theoretical calculation and the stress that acts during sample quenching.",
journal = "Ceramics International",
title = "Mechanical properties and thermal shock resistance of anorthite ceramics obtained by slip casting",
volume = "50",
number = "3 Part B",
pages = "5787-5795",
doi = "10.1016/j.ceramint.2023.11.381"
}
Omerašević, M., Krsmanović, M., Radovanović, Ž.,& Bučevac, D.. (2024). Mechanical properties and thermal shock resistance of anorthite ceramics obtained by slip casting. in Ceramics International, 50(3 Part B), 5787-5795.
https://doi.org/10.1016/j.ceramint.2023.11.381
Omerašević M, Krsmanović M, Radovanović Ž, Bučevac D. Mechanical properties and thermal shock resistance of anorthite ceramics obtained by slip casting. in Ceramics International. 2024;50(3 Part B):5787-5795.
doi:10.1016/j.ceramint.2023.11.381 .
Omerašević, Mia, Krsmanović, Miomir, Radovanović, Željko, Bučevac, Dušan, "Mechanical properties and thermal shock resistance of anorthite ceramics obtained by slip casting" in Ceramics International, 50, no. 3 Part B (2024):5787-5795,
https://doi.org/10.1016/j.ceramint.2023.11.381 . .

Synthesis of europium-doped fluorapatite as a promising luminescent biomaterial

Stanić, Vojislav; Omerašević, Mia; Mutavdžić, M.; Mraković, Ana; Veljović, Đ.; Marinović-Cincović, Milena; Jovanović, D.

(Belgrade : Vinča Institute of Nuclear Sciences, 2023)

TY  - CONF
AU  - Stanić, Vojislav
AU  - Omerašević, Mia
AU  - Mutavdžić, M.
AU  - Mraković, Ana
AU  - Veljović, Đ.
AU  - Marinović-Cincović, Milena
AU  - Jovanović, D.
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11811
AB  - Lanthanide-doped apatite biomaterials are highly promising in medicine because of their excellent chemical and optical properties. In this study, Eu(III)-doped fluorapatite particles have been successfully synthesized by a wet method at room temperature. The characterization study from XRD showed that obtained powder is monophasic fluorapatite. Biomaterials based on fluorapatite (Ca10(PO4)5F2) doped with lanthanide elements are ideal contrast agents for a variety of biomedical applications, e.g. detection, imaging, cell tracking, and therapy [1]. Eu(III) received a great deal of interest because of several desirable properties like emission in the visible region, long luminescent lifetime, and less sensitivity to quenching by singlet oxygen [2].
PB  - Belgrade : Vinča Institute of Nuclear Sciences
C3  - PHOTONICA2023 : 9th International School and Conference on Photonics : book of abstracts; August 28 - September 1, 2023; Belgrade
T1  - Synthesis of europium-doped fluorapatite as a promising luminescent biomaterial
SP  - 85
EP  - 85
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11811
ER  - 
@conference{
author = "Stanić, Vojislav and Omerašević, Mia and Mutavdžić, M. and Mraković, Ana and Veljović, Đ. and Marinović-Cincović, Milena and Jovanović, D.",
year = "2023",
abstract = "Lanthanide-doped apatite biomaterials are highly promising in medicine because of their excellent chemical and optical properties. In this study, Eu(III)-doped fluorapatite particles have been successfully synthesized by a wet method at room temperature. The characterization study from XRD showed that obtained powder is monophasic fluorapatite. Biomaterials based on fluorapatite (Ca10(PO4)5F2) doped with lanthanide elements are ideal contrast agents for a variety of biomedical applications, e.g. detection, imaging, cell tracking, and therapy [1]. Eu(III) received a great deal of interest because of several desirable properties like emission in the visible region, long luminescent lifetime, and less sensitivity to quenching by singlet oxygen [2].",
publisher = "Belgrade : Vinča Institute of Nuclear Sciences",
journal = "PHOTONICA2023 : 9th International School and Conference on Photonics : book of abstracts; August 28 - September 1, 2023; Belgrade",
title = "Synthesis of europium-doped fluorapatite as a promising luminescent biomaterial",
pages = "85-85",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11811"
}
Stanić, V., Omerašević, M., Mutavdžić, M., Mraković, A., Veljović, Đ., Marinović-Cincović, M.,& Jovanović, D.. (2023). Synthesis of europium-doped fluorapatite as a promising luminescent biomaterial. in PHOTONICA2023 : 9th International School and Conference on Photonics : book of abstracts; August 28 - September 1, 2023; Belgrade
Belgrade : Vinča Institute of Nuclear Sciences., 85-85.
https://hdl.handle.net/21.15107/rcub_vinar_11811
Stanić V, Omerašević M, Mutavdžić M, Mraković A, Veljović Đ, Marinović-Cincović M, Jovanović D. Synthesis of europium-doped fluorapatite as a promising luminescent biomaterial. in PHOTONICA2023 : 9th International School and Conference on Photonics : book of abstracts; August 28 - September 1, 2023; Belgrade. 2023;:85-85.
https://hdl.handle.net/21.15107/rcub_vinar_11811 .
Stanić, Vojislav, Omerašević, Mia, Mutavdžić, M., Mraković, Ana, Veljović, Đ., Marinović-Cincović, Milena, Jovanović, D., "Synthesis of europium-doped fluorapatite as a promising luminescent biomaterial" in PHOTONICA2023 : 9th International School and Conference on Photonics : book of abstracts; August 28 - September 1, 2023; Belgrade (2023):85-85,
https://hdl.handle.net/21.15107/rcub_vinar_11811 .

Synthesis and characterization of luminescent Pr3+ –doped hydroxyapatite nanopowder as a potential biomaterial for bioimaging applications

Stanić, Vojislav; Omerašević, Mia; Mutavdžić, Dragoslav; Jugović, Dragana; Bučevac, Dušan; Gerić, Tamara; Jelić, Ivana

(Belgrade : Serbian Ceramic Society, 2023)

TY  - CONF
AU  - Stanić, Vojislav
AU  - Omerašević, Mia
AU  - Mutavdžić, Dragoslav
AU  - Jugović, Dragana
AU  - Bučevac, Dušan
AU  - Gerić, Tamara
AU  - Jelić, Ivana
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11647
AB  - Praseodymium doped calcium hydroxyapatite (PrHAP) nanopowder was synthesized by the co-precipitation method and characterized by X-Ray Diffraction, Fourier Transform Infrared, and Fluorescence Spectroscopy. Characterization studies from XRD and FTIR spectra showed that obtained crystals are monophase hydroxyapatites and that the sample particles are of nano size. A fluorescence study has shown that PrHAP particles have fluorescent emission under UV‐ Visible excitation. These results may open new avenues for developing bioactive materials for bone regeneration and fluorescent probes for bio-imaging applications
PB  - Belgrade : Serbian Ceramic Society
C3  - Advanced Ceramics and Application :11th Serbian Ceramic Society Conference : program and the book of abstracts; September 18-20, 2023; Belgrade
T1  - Synthesis and characterization of luminescent Pr3+ –doped hydroxyapatite nanopowder as a potential biomaterial for bioimaging applications
SP  - 72
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11647
ER  - 
@conference{
author = "Stanić, Vojislav and Omerašević, Mia and Mutavdžić, Dragoslav and Jugović, Dragana and Bučevac, Dušan and Gerić, Tamara and Jelić, Ivana",
year = "2023",
abstract = "Praseodymium doped calcium hydroxyapatite (PrHAP) nanopowder was synthesized by the co-precipitation method and characterized by X-Ray Diffraction, Fourier Transform Infrared, and Fluorescence Spectroscopy. Characterization studies from XRD and FTIR spectra showed that obtained crystals are monophase hydroxyapatites and that the sample particles are of nano size. A fluorescence study has shown that PrHAP particles have fluorescent emission under UV‐ Visible excitation. These results may open new avenues for developing bioactive materials for bone regeneration and fluorescent probes for bio-imaging applications",
publisher = "Belgrade : Serbian Ceramic Society",
journal = "Advanced Ceramics and Application :11th Serbian Ceramic Society Conference : program and the book of abstracts; September 18-20, 2023; Belgrade",
title = "Synthesis and characterization of luminescent Pr3+ –doped hydroxyapatite nanopowder as a potential biomaterial for bioimaging applications",
pages = "72",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11647"
}
Stanić, V., Omerašević, M., Mutavdžić, D., Jugović, D., Bučevac, D., Gerić, T.,& Jelić, I.. (2023). Synthesis and characterization of luminescent Pr3+ –doped hydroxyapatite nanopowder as a potential biomaterial for bioimaging applications. in Advanced Ceramics and Application :11th Serbian Ceramic Society Conference : program and the book of abstracts; September 18-20, 2023; Belgrade
Belgrade : Serbian Ceramic Society., 72.
https://hdl.handle.net/21.15107/rcub_vinar_11647
Stanić V, Omerašević M, Mutavdžić D, Jugović D, Bučevac D, Gerić T, Jelić I. Synthesis and characterization of luminescent Pr3+ –doped hydroxyapatite nanopowder as a potential biomaterial for bioimaging applications. in Advanced Ceramics and Application :11th Serbian Ceramic Society Conference : program and the book of abstracts; September 18-20, 2023; Belgrade. 2023;:72.
https://hdl.handle.net/21.15107/rcub_vinar_11647 .
Stanić, Vojislav, Omerašević, Mia, Mutavdžić, Dragoslav, Jugović, Dragana, Bučevac, Dušan, Gerić, Tamara, Jelić, Ivana, "Synthesis and characterization of luminescent Pr3+ –doped hydroxyapatite nanopowder as a potential biomaterial for bioimaging applications" in Advanced Ceramics and Application :11th Serbian Ceramic Society Conference : program and the book of abstracts; September 18-20, 2023; Belgrade (2023):72,
https://hdl.handle.net/21.15107/rcub_vinar_11647 .

Immobilization of nickel ions into stable crystal structures as a promising way for their removal from wastewater

Krsmanović, Miomir; Popović, Aleksandar; Radovanović, Željko; Marković, Smilja; Omerašević, Mia

(Belgrade : Institute of Technical Sciences of SASA, 2023)

TY  - CONF
AU  - Krsmanović, Miomir
AU  - Popović, Aleksandar
AU  - Radovanović, Željko
AU  - Marković, Smilja
AU  - Omerašević, Mia
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12309
AB  - Environmental pollution is increasing day by day due to industrial activities. Heavy metals are pollutants of special concern due to their toxicity, persistence, and bioaccumulation in nature. Nickel is a heavy metal that is mostly used in industries because of its anticorrosion behavior. As a consequence, nickel ions are present in the wastewater from mining, electroplating, battery manufacturing and metal finishing industries. Nickel ions are nonbiodegradable, and as such, they are present in surface water. Their high concentrations can have a dangerous impact on human health and aquatic life. In this work, a promising method for the removal of Ni ions from wastewater and their incorporation into a stable crystal structure was described. Ni-exchanged form of LTA zeolite was prepared by the standard procedure of ion exchange. After the ion exchange, powder samples were heated at temperatures of 900 to 1300 ºC in order to obtain a stable crystal structure of Ni-spinel, NiAl2O4. XRF analysis was used to study ion exchange efficiency. Characterization of raw as well as thermally treated powder samples of Ni-exchanged LTA zeolite was conducted by XRPD, DTA/TG, FT-IR and SEM analysis
PB  - Belgrade : Institute of Technical Sciences of SASA
C3  - 21st Young Researchers' Conference Materials Sciences and Engineering : program and the book of abstracts
T1  - Immobilization of nickel ions into stable crystal structures as a promising way for their removal from wastewater
SP  - 29
EP  - 29
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12309
ER  - 
@conference{
author = "Krsmanović, Miomir and Popović, Aleksandar and Radovanović, Željko and Marković, Smilja and Omerašević, Mia",
year = "2023",
abstract = "Environmental pollution is increasing day by day due to industrial activities. Heavy metals are pollutants of special concern due to their toxicity, persistence, and bioaccumulation in nature. Nickel is a heavy metal that is mostly used in industries because of its anticorrosion behavior. As a consequence, nickel ions are present in the wastewater from mining, electroplating, battery manufacturing and metal finishing industries. Nickel ions are nonbiodegradable, and as such, they are present in surface water. Their high concentrations can have a dangerous impact on human health and aquatic life. In this work, a promising method for the removal of Ni ions from wastewater and their incorporation into a stable crystal structure was described. Ni-exchanged form of LTA zeolite was prepared by the standard procedure of ion exchange. After the ion exchange, powder samples were heated at temperatures of 900 to 1300 ºC in order to obtain a stable crystal structure of Ni-spinel, NiAl2O4. XRF analysis was used to study ion exchange efficiency. Characterization of raw as well as thermally treated powder samples of Ni-exchanged LTA zeolite was conducted by XRPD, DTA/TG, FT-IR and SEM analysis",
publisher = "Belgrade : Institute of Technical Sciences of SASA",
journal = "21st Young Researchers' Conference Materials Sciences and Engineering : program and the book of abstracts",
title = "Immobilization of nickel ions into stable crystal structures as a promising way for their removal from wastewater",
pages = "29-29",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12309"
}
Krsmanović, M., Popović, A., Radovanović, Ž., Marković, S.,& Omerašević, M.. (2023). Immobilization of nickel ions into stable crystal structures as a promising way for their removal from wastewater. in 21st Young Researchers' Conference Materials Sciences and Engineering : program and the book of abstracts
Belgrade : Institute of Technical Sciences of SASA., 29-29.
https://hdl.handle.net/21.15107/rcub_vinar_12309
Krsmanović M, Popović A, Radovanović Ž, Marković S, Omerašević M. Immobilization of nickel ions into stable crystal structures as a promising way for their removal from wastewater. in 21st Young Researchers' Conference Materials Sciences and Engineering : program and the book of abstracts. 2023;:29-29.
https://hdl.handle.net/21.15107/rcub_vinar_12309 .
Krsmanović, Miomir, Popović, Aleksandar, Radovanović, Željko, Marković, Smilja, Omerašević, Mia, "Immobilization of nickel ions into stable crystal structures as a promising way for their removal from wastewater" in 21st Young Researchers' Conference Materials Sciences and Engineering : program and the book of abstracts (2023):29-29,
https://hdl.handle.net/21.15107/rcub_vinar_12309 .

Fabrication of porous anorthite-based ceramics using solid wastes for costeffective thermal insulation of buildings

Omerašević, Mia; Krsmanović, Miomir; Pavkov, Vladimir; Radovanović, Željko; Egerić, Marija; Nenadović, Snežana; Bučevac, Dušan

(Belgrade : Serbian Ceramic Society, 2023)

TY  - CONF
AU  - Omerašević, Mia
AU  - Krsmanović, Miomir
AU  - Pavkov, Vladimir
AU  - Radovanović, Željko
AU  - Egerić, Marija
AU  - Nenadović, Snežana
AU  - Bučevac, Dušan
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11627
AB  - There is a global tendency to reduce the consumption of energy required for heating as well
as cooling buildings. Therefore, thermal insulation technology becoming important in
preventing both, the gain and loss of heat through the building envelope. This work aims to
evaluate the feasibility of using inexpensive raw materials such as kaolin and waste material
such as seashells and banana peel for fabrication of the sustainable anorthite-based porous
ceramics for thermal insulation. Kaolin was used as a source of Al2O3 and SiO2, seashells as a
source of CaO whereas banana peel was used as a pore former. The phase composition, bulk
density, open porosity, compressive strength, microstructure, and thermal conductivity of the
ceramic samples, were analyzed. The obtained results showed that the variation of pore former (banana peel) content and sintering temperature was an effective way to control the
thermo-mechanical properties of the obtained anorthite ceramics. Samples with open porosity
(1.4 – 45%), compressive strength (>15 MPa), bulk density (1.87-2.62 g/cm3
), and thermal
conductivity (0.097-3.67W/mK) were obtained after sintering of samples with different
percent of banana peel at 1100–1200 ◦C. It suggests that the obtained porous ceramics can be
used for cost-effective thermal insulation of buildings.
PB  - Belgrade : Serbian Ceramic Society
C3  - Advanced Ceramics and Application :11th Serbian Ceramic Society Conference : program and the book of abstracts; September 18-20, 2023; Belgrade
T1  - Fabrication of porous anorthite-based ceramics using solid wastes for costeffective thermal insulation of buildings
SP  - 61
EP  - 62
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11627
ER  - 
@conference{
author = "Omerašević, Mia and Krsmanović, Miomir and Pavkov, Vladimir and Radovanović, Željko and Egerić, Marija and Nenadović, Snežana and Bučevac, Dušan",
year = "2023",
abstract = "There is a global tendency to reduce the consumption of energy required for heating as well
as cooling buildings. Therefore, thermal insulation technology becoming important in
preventing both, the gain and loss of heat through the building envelope. This work aims to
evaluate the feasibility of using inexpensive raw materials such as kaolin and waste material
such as seashells and banana peel for fabrication of the sustainable anorthite-based porous
ceramics for thermal insulation. Kaolin was used as a source of Al2O3 and SiO2, seashells as a
source of CaO whereas banana peel was used as a pore former. The phase composition, bulk
density, open porosity, compressive strength, microstructure, and thermal conductivity of the
ceramic samples, were analyzed. The obtained results showed that the variation of pore former (banana peel) content and sintering temperature was an effective way to control the
thermo-mechanical properties of the obtained anorthite ceramics. Samples with open porosity
(1.4 – 45%), compressive strength (>15 MPa), bulk density (1.87-2.62 g/cm3
), and thermal
conductivity (0.097-3.67W/mK) were obtained after sintering of samples with different
percent of banana peel at 1100–1200 ◦C. It suggests that the obtained porous ceramics can be
used for cost-effective thermal insulation of buildings.",
publisher = "Belgrade : Serbian Ceramic Society",
journal = "Advanced Ceramics and Application :11th Serbian Ceramic Society Conference : program and the book of abstracts; September 18-20, 2023; Belgrade",
title = "Fabrication of porous anorthite-based ceramics using solid wastes for costeffective thermal insulation of buildings",
pages = "61-62",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11627"
}
Omerašević, M., Krsmanović, M., Pavkov, V., Radovanović, Ž., Egerić, M., Nenadović, S.,& Bučevac, D.. (2023). Fabrication of porous anorthite-based ceramics using solid wastes for costeffective thermal insulation of buildings. in Advanced Ceramics and Application :11th Serbian Ceramic Society Conference : program and the book of abstracts; September 18-20, 2023; Belgrade
Belgrade : Serbian Ceramic Society., 61-62.
https://hdl.handle.net/21.15107/rcub_vinar_11627
Omerašević M, Krsmanović M, Pavkov V, Radovanović Ž, Egerić M, Nenadović S, Bučevac D. Fabrication of porous anorthite-based ceramics using solid wastes for costeffective thermal insulation of buildings. in Advanced Ceramics and Application :11th Serbian Ceramic Society Conference : program and the book of abstracts; September 18-20, 2023; Belgrade. 2023;:61-62.
https://hdl.handle.net/21.15107/rcub_vinar_11627 .
Omerašević, Mia, Krsmanović, Miomir, Pavkov, Vladimir, Radovanović, Željko, Egerić, Marija, Nenadović, Snežana, Bučevac, Dušan, "Fabrication of porous anorthite-based ceramics using solid wastes for costeffective thermal insulation of buildings" in Advanced Ceramics and Application :11th Serbian Ceramic Society Conference : program and the book of abstracts; September 18-20, 2023; Belgrade (2023):61-62,
https://hdl.handle.net/21.15107/rcub_vinar_11627 .

The Origin of 99Tc in the Environment and Its Removal

Petrović, Đorđe; Matović, Ljiljana; Egerić, Marija; Omerašević, Mia; Vujasin, Radojka; Ilić-Stojanović, Snežana; Krstić, Sanja

(2023)

TY  - JOUR
AU  - Petrović, Đorđe
AU  - Matović, Ljiljana
AU  - Egerić, Marija
AU  - Omerašević, Mia
AU  - Vujasin, Radojka
AU  - Ilić-Stojanović, Snežana
AU  - Krstić, Sanja
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11730
AB  - Technetium-99 (99Tc), as one of the important high-yield fission products, is a significant threat to the environment and human health. It is produced in large amounts by nuclear fission of 235U or 239Pu in nuclear reactions, though the quantity of Tc produced by the spontaneous fission of 238U or by decay of 99Mo in the nature which is very small. 99Tc in the environment originates from nuclear weapons tests, discharges from nuclear power plants, nuclear medicine and radiobiology. These activities generate large volumes of low and intermediate radioactive waste which can cause a significant impact on the environment if disposed without suitable treatment. Immobilization of 99Tc into a relatively small volume waste is vital for long term permanent disposal. High mobility and long half-life of 99Tc considered to be one of the most important radionuclides in safety assessment of environmental radioactivity as well as nuclear waste management. Effective removal of radioactive technetium (99Tc) from contaminated water is of enormous importance from an environmental and public health perspective, yet many current methodologies are highly ineffective. This paper summarizes physico-chemical separation procedures emphasizing those that are the most used in practice. Classic sorbents such as activated carbons, ion exchange resins as well, as new materials, such as metal−organic frameworks and graphene based membranes are described in the paper.
T2  - Journal of Innovative Materials in Extreme Conditions
T1  - The Origin of 99Tc in the Environment and Its Removal
VL  - 4
IS  - 1
SP  - 10
EP  - 21
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11730
ER  - 
@article{
author = "Petrović, Đorđe and Matović, Ljiljana and Egerić, Marija and Omerašević, Mia and Vujasin, Radojka and Ilić-Stojanović, Snežana and Krstić, Sanja",
year = "2023",
abstract = "Technetium-99 (99Tc), as one of the important high-yield fission products, is a significant threat to the environment and human health. It is produced in large amounts by nuclear fission of 235U or 239Pu in nuclear reactions, though the quantity of Tc produced by the spontaneous fission of 238U or by decay of 99Mo in the nature which is very small. 99Tc in the environment originates from nuclear weapons tests, discharges from nuclear power plants, nuclear medicine and radiobiology. These activities generate large volumes of low and intermediate radioactive waste which can cause a significant impact on the environment if disposed without suitable treatment. Immobilization of 99Tc into a relatively small volume waste is vital for long term permanent disposal. High mobility and long half-life of 99Tc considered to be one of the most important radionuclides in safety assessment of environmental radioactivity as well as nuclear waste management. Effective removal of radioactive technetium (99Tc) from contaminated water is of enormous importance from an environmental and public health perspective, yet many current methodologies are highly ineffective. This paper summarizes physico-chemical separation procedures emphasizing those that are the most used in practice. Classic sorbents such as activated carbons, ion exchange resins as well, as new materials, such as metal−organic frameworks and graphene based membranes are described in the paper.",
journal = "Journal of Innovative Materials in Extreme Conditions",
title = "The Origin of 99Tc in the Environment and Its Removal",
volume = "4",
number = "1",
pages = "10-21",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11730"
}
Petrović, Đ., Matović, L., Egerić, M., Omerašević, M., Vujasin, R., Ilić-Stojanović, S.,& Krstić, S.. (2023). The Origin of 99Tc in the Environment and Its Removal. in Journal of Innovative Materials in Extreme Conditions, 4(1), 10-21.
https://hdl.handle.net/21.15107/rcub_vinar_11730
Petrović Đ, Matović L, Egerić M, Omerašević M, Vujasin R, Ilić-Stojanović S, Krstić S. The Origin of 99Tc in the Environment and Its Removal. in Journal of Innovative Materials in Extreme Conditions. 2023;4(1):10-21.
https://hdl.handle.net/21.15107/rcub_vinar_11730 .
Petrović, Đorđe, Matović, Ljiljana, Egerić, Marija, Omerašević, Mia, Vujasin, Radojka, Ilić-Stojanović, Snežana, Krstić, Sanja, "The Origin of 99Tc in the Environment and Its Removal" in Journal of Innovative Materials in Extreme Conditions, 4, no. 1 (2023):10-21,
https://hdl.handle.net/21.15107/rcub_vinar_11730 .

Dense pollucite ceramics obtained by hot-pressing as a potential matrix for the immobilization of cesium ions

Omerašević, Mia

(Belgrade : Serbian Ceramic Society, 2022)

TY  - CONF
AU  - Omerašević, Mia
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10788
PB  - Belgrade : Serbian Ceramic Society
C3  - Advanced Ceramics and Application : 10th Serbian Ceramic Society Conference : program and the book of abstracts; September 26-27, 2022; Belgrade
T1  - Dense pollucite ceramics obtained by hot-pressing as a potential matrix for the immobilization of cesium ions
SP  - 40
UR  - https://hdl.handle.net/21.15107/rcub_vinar_10788
ER  - 
@conference{
author = "Omerašević, Mia",
year = "2022",
publisher = "Belgrade : Serbian Ceramic Society",
journal = "Advanced Ceramics and Application : 10th Serbian Ceramic Society Conference : program and the book of abstracts; September 26-27, 2022; Belgrade",
title = "Dense pollucite ceramics obtained by hot-pressing as a potential matrix for the immobilization of cesium ions",
pages = "40",
url = "https://hdl.handle.net/21.15107/rcub_vinar_10788"
}
Omerašević, M.. (2022). Dense pollucite ceramics obtained by hot-pressing as a potential matrix for the immobilization of cesium ions. in Advanced Ceramics and Application : 10th Serbian Ceramic Society Conference : program and the book of abstracts; September 26-27, 2022; Belgrade
Belgrade : Serbian Ceramic Society., 40.
https://hdl.handle.net/21.15107/rcub_vinar_10788
Omerašević M. Dense pollucite ceramics obtained by hot-pressing as a potential matrix for the immobilization of cesium ions. in Advanced Ceramics and Application : 10th Serbian Ceramic Society Conference : program and the book of abstracts; September 26-27, 2022; Belgrade. 2022;:40.
https://hdl.handle.net/21.15107/rcub_vinar_10788 .
Omerašević, Mia, "Dense pollucite ceramics obtained by hot-pressing as a potential matrix for the immobilization of cesium ions" in Advanced Ceramics and Application : 10th Serbian Ceramic Society Conference : program and the book of abstracts; September 26-27, 2022; Belgrade (2022):40,
https://hdl.handle.net/21.15107/rcub_vinar_10788 .

Al2O3-YAG ceramic composite with improved creep resistance

Bučevac, Dušan; Mirković, Miljana M.; Nenadović, Snežana S.; Kljajević, Ljiljana M.; Omerašević, Mia

(Belgrade : Serbian Ceramic Society, 2022)

TY  - CONF
AU  - Bučevac, Dušan
AU  - Mirković, Miljana M.
AU  - Nenadović, Snežana S.
AU  - Kljajević, Ljiljana M.
AU  - Omerašević, Mia
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10801
AB  - Comprehensive study on effect of YAG amount on densification, creep resistance and mechanical properties of Al2O3-YAG composite pressureless sintered at 1600 o C was conducted. The main goal was to optimize the amount of YAG in order to fabricate a composite with improved creep resistance and sufficiently good mechanical properties. The composite was made by mixing a commercially available Al2O3 powder with fine YAG powder obtained by glycine-nitrate combustion synthesis. Increased driving force for sintering of fine YAG powder allowed fabrication of dense Al2O3-YAG composite containing up to 30 vol% YAG. The presence of YAG was found to be effective in improving creep resistance as well as mechanical properties of Al2O3-YAG composite such as hardness and elastic modulus. While fracture strength of the composite can be as high as that of monolithic Al2O3 (~ 300 MPa), fracture toughness of composite decreased continuously as the YAG content increased. The decrease was ascribed to transgranular fracture of both YAG and Al2O3 grains in samples containing larger amounts of YAG. The proper balance between fracture toughness and creep resistance was found in composite containing 18 vol% YAG which had considerably improved creep resistance accompanied by a relatively small decrease in fracture toughness which reached value of ~ 3 MPa·m1/2. Hardness and elastic modulus were found to be 15 GPa and 371 GPa, respectively.
PB  - Belgrade : Serbian Ceramic Society
C3  - Advanced Ceramics and Application : 10th Serbian Ceramic Society Conference : program and the book of abstracts; September 26-27, 2022; Belgrade
T1  - Al2O3-YAG ceramic composite with improved creep resistance
SP  - 61
UR  - https://hdl.handle.net/21.15107/rcub_vinar_10801
ER  - 
@conference{
author = "Bučevac, Dušan and Mirković, Miljana M. and Nenadović, Snežana S. and Kljajević, Ljiljana M. and Omerašević, Mia",
year = "2022",
abstract = "Comprehensive study on effect of YAG amount on densification, creep resistance and mechanical properties of Al2O3-YAG composite pressureless sintered at 1600 o C was conducted. The main goal was to optimize the amount of YAG in order to fabricate a composite with improved creep resistance and sufficiently good mechanical properties. The composite was made by mixing a commercially available Al2O3 powder with fine YAG powder obtained by glycine-nitrate combustion synthesis. Increased driving force for sintering of fine YAG powder allowed fabrication of dense Al2O3-YAG composite containing up to 30 vol% YAG. The presence of YAG was found to be effective in improving creep resistance as well as mechanical properties of Al2O3-YAG composite such as hardness and elastic modulus. While fracture strength of the composite can be as high as that of monolithic Al2O3 (~ 300 MPa), fracture toughness of composite decreased continuously as the YAG content increased. The decrease was ascribed to transgranular fracture of both YAG and Al2O3 grains in samples containing larger amounts of YAG. The proper balance between fracture toughness and creep resistance was found in composite containing 18 vol% YAG which had considerably improved creep resistance accompanied by a relatively small decrease in fracture toughness which reached value of ~ 3 MPa·m1/2. Hardness and elastic modulus were found to be 15 GPa and 371 GPa, respectively.",
publisher = "Belgrade : Serbian Ceramic Society",
journal = "Advanced Ceramics and Application : 10th Serbian Ceramic Society Conference : program and the book of abstracts; September 26-27, 2022; Belgrade",
title = "Al2O3-YAG ceramic composite with improved creep resistance",
pages = "61",
url = "https://hdl.handle.net/21.15107/rcub_vinar_10801"
}
Bučevac, D., Mirković, M. M., Nenadović, S. S., Kljajević, L. M.,& Omerašević, M.. (2022). Al2O3-YAG ceramic composite with improved creep resistance. in Advanced Ceramics and Application : 10th Serbian Ceramic Society Conference : program and the book of abstracts; September 26-27, 2022; Belgrade
Belgrade : Serbian Ceramic Society., 61.
https://hdl.handle.net/21.15107/rcub_vinar_10801
Bučevac D, Mirković MM, Nenadović SS, Kljajević LM, Omerašević M. Al2O3-YAG ceramic composite with improved creep resistance. in Advanced Ceramics and Application : 10th Serbian Ceramic Society Conference : program and the book of abstracts; September 26-27, 2022; Belgrade. 2022;:61.
https://hdl.handle.net/21.15107/rcub_vinar_10801 .
Bučevac, Dušan, Mirković, Miljana M., Nenadović, Snežana S., Kljajević, Ljiljana M., Omerašević, Mia, "Al2O3-YAG ceramic composite with improved creep resistance" in Advanced Ceramics and Application : 10th Serbian Ceramic Society Conference : program and the book of abstracts; September 26-27, 2022; Belgrade (2022):61,
https://hdl.handle.net/21.15107/rcub_vinar_10801 .

Water under extreme conditions: simultaneous gamma irradiation/carbon char adsorption resulted in improved methylene blue degradation

Vujasin, Radojka; Kumrić, Ksenija; Devečerski, Aleksandar; Omerašević, Mia; Egerić, Marija; Petrović, Đorđe Ž.; Matović, Ljiljana

(Belgrade : Vinča Institute of Nuclear Sciences - National Institute of thе Republic of Serbia, University of Belgrade, 2022)

TY  - CONF
AU  - Vujasin, Radojka
AU  - Kumrić, Ksenija
AU  - Devečerski, Aleksandar
AU  - Omerašević, Mia
AU  - Egerić, Marija
AU  - Petrović, Đorđe Ž.
AU  - Matović, Ljiljana
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12083
AB  - Dyes and pigments are used by many industries to color their products. In this study, we applied two different kinds of waste materials: used radioactive sources and carbon waste tire char (WTC) to study their simultaneous effect of irradiation/adsorption on dye degradation. Irradiation of methylene blue (MB) by high energy γ radiation derived from used radioactive sources in the presence of carbon based material made of waste tire granules caused enhanced decoloration of the MB. Delivered dose of  radiations differ depending on the type of isotope. The best decoloration was achieved using 60Co isotope. Complete decoloration of 20 ml of MB solution having concentration of 100 mg dm-3 of WTC was achieved with delivered doze of only 60 Gy. Decoloration of 90% was achieved after only 20 min while complete decoloration of MB solution (100%) was obtained in the irradiated samples after only 100 min. Processes that use ionizing radiation (α, β and γ) for decoloration of dyes are characterized as advanced oxidation processes which normally utilize a strong oxidizing species to break down the macromolecules. High energy radiation in water medium can produce radiolysis of water i.e. formation of several active species such as H2, H2O2, H+, OH− , eaq− , •OH and •H which are responsible for chemical reactions in water solutions. The significance of this approach is, except using waste materials for achieving enhanced degradation of organic pollutants in the solution, avoiding the need for safe disposal and storage of waste radioactive sources. Also, less waste material is generated at the end of the simultaneous irradiation/sorption process compared to the pure sorption process. Surface composition of WTC, needed to elucidate the key mechanism of synergism of MB degradation, during the simultaneous adsorption/irradiation was obtained using FTIR and XPS technique. OH-  ions, that originate from radiolysis of water induced by gamma irradiation and from the surface of WTC, play the crucial role in degradation of MB. MB molecule adsorbed at the surface of WTC is electronically reorganized and as a consequence degradated via the opening of the central aromatic ring containing both heteroatoms, S and N. OH-  ions produced by water radiolysis also cause degradation of MB molecules in the solution.The synergetic effect is a result of the attack of • OH radicals on electrostatic reorganized MB molecule adsorbed on surface of carbon material. Opening of central aromatic ring of MB firstly appeared in cleavage of the double C-S+ =C bond and then cleavage of double N=C bond.
PB  - Belgrade : Vinča Institute of Nuclear Sciences - National Institute of thе Republic of Serbia, University of Belgrade
PB  - Belgrade : Serbian Society for Innovative Materials in Extreme Conditions (SIM-EXTREME)
C3  - IMEC 2022 : 1st Intentational conference on innovativ materials in extreme conditions : Program and Book of abstracts
T1  - Water under extreme conditions: simultaneous gamma irradiation/carbon char adsorption resulted in improved methylene blue degradation
SP  - 56
EP  - 56
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12083
ER  - 
@conference{
author = "Vujasin, Radojka and Kumrić, Ksenija and Devečerski, Aleksandar and Omerašević, Mia and Egerić, Marija and Petrović, Đorđe Ž. and Matović, Ljiljana",
year = "2022",
abstract = "Dyes and pigments are used by many industries to color their products. In this study, we applied two different kinds of waste materials: used radioactive sources and carbon waste tire char (WTC) to study their simultaneous effect of irradiation/adsorption on dye degradation. Irradiation of methylene blue (MB) by high energy γ radiation derived from used radioactive sources in the presence of carbon based material made of waste tire granules caused enhanced decoloration of the MB. Delivered dose of  radiations differ depending on the type of isotope. The best decoloration was achieved using 60Co isotope. Complete decoloration of 20 ml of MB solution having concentration of 100 mg dm-3 of WTC was achieved with delivered doze of only 60 Gy. Decoloration of 90% was achieved after only 20 min while complete decoloration of MB solution (100%) was obtained in the irradiated samples after only 100 min. Processes that use ionizing radiation (α, β and γ) for decoloration of dyes are characterized as advanced oxidation processes which normally utilize a strong oxidizing species to break down the macromolecules. High energy radiation in water medium can produce radiolysis of water i.e. formation of several active species such as H2, H2O2, H+, OH− , eaq− , •OH and •H which are responsible for chemical reactions in water solutions. The significance of this approach is, except using waste materials for achieving enhanced degradation of organic pollutants in the solution, avoiding the need for safe disposal and storage of waste radioactive sources. Also, less waste material is generated at the end of the simultaneous irradiation/sorption process compared to the pure sorption process. Surface composition of WTC, needed to elucidate the key mechanism of synergism of MB degradation, during the simultaneous adsorption/irradiation was obtained using FTIR and XPS technique. OH-  ions, that originate from radiolysis of water induced by gamma irradiation and from the surface of WTC, play the crucial role in degradation of MB. MB molecule adsorbed at the surface of WTC is electronically reorganized and as a consequence degradated via the opening of the central aromatic ring containing both heteroatoms, S and N. OH-  ions produced by water radiolysis also cause degradation of MB molecules in the solution.The synergetic effect is a result of the attack of • OH radicals on electrostatic reorganized MB molecule adsorbed on surface of carbon material. Opening of central aromatic ring of MB firstly appeared in cleavage of the double C-S+ =C bond and then cleavage of double N=C bond.",
publisher = "Belgrade : Vinča Institute of Nuclear Sciences - National Institute of thе Republic of Serbia, University of Belgrade, Belgrade : Serbian Society for Innovative Materials in Extreme Conditions (SIM-EXTREME)",
journal = "IMEC 2022 : 1st Intentational conference on innovativ materials in extreme conditions : Program and Book of abstracts",
title = "Water under extreme conditions: simultaneous gamma irradiation/carbon char adsorption resulted in improved methylene blue degradation",
pages = "56-56",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12083"
}
Vujasin, R., Kumrić, K., Devečerski, A., Omerašević, M., Egerić, M., Petrović, Đ. Ž.,& Matović, L.. (2022). Water under extreme conditions: simultaneous gamma irradiation/carbon char adsorption resulted in improved methylene blue degradation. in IMEC 2022 : 1st Intentational conference on innovativ materials in extreme conditions : Program and Book of abstracts
Belgrade : Vinča Institute of Nuclear Sciences - National Institute of thе Republic of Serbia, University of Belgrade., 56-56.
https://hdl.handle.net/21.15107/rcub_vinar_12083
Vujasin R, Kumrić K, Devečerski A, Omerašević M, Egerić M, Petrović ĐŽ, Matović L. Water under extreme conditions: simultaneous gamma irradiation/carbon char adsorption resulted in improved methylene blue degradation. in IMEC 2022 : 1st Intentational conference on innovativ materials in extreme conditions : Program and Book of abstracts. 2022;:56-56.
https://hdl.handle.net/21.15107/rcub_vinar_12083 .
Vujasin, Radojka, Kumrić, Ksenija, Devečerski, Aleksandar, Omerašević, Mia, Egerić, Marija, Petrović, Đorđe Ž., Matović, Ljiljana, "Water under extreme conditions: simultaneous gamma irradiation/carbon char adsorption resulted in improved methylene blue degradation" in IMEC 2022 : 1st Intentational conference on innovativ materials in extreme conditions : Program and Book of abstracts (2022):56-56,
https://hdl.handle.net/21.15107/rcub_vinar_12083 .

Effect of Milling Time on Mechanical Properties of Anorthite Obtained by Thermal Transformation of Ca-LTA Zeolite

Omerašević, Mia; Baščarević, Zvezdana D.; Vujasin, Radojka; Devečerski, Aleksandar; Bučevac, Dušan

(2022)

TY  - JOUR
AU  - Omerašević, Mia
AU  - Baščarević, Zvezdana D.
AU  - Vujasin, Radojka
AU  - Devečerski, Aleksandar
AU  - Bučevac, Dušan
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10432
AB  - Anorthite ceramics was fabricated from calcium exchanged Na-LTA zeolite. The powder compacts of Ca-LTA zeolite were sintered at different temperatures ranging between 1100 and 1400°C. It was found that the temperature of 1100°C was sufficiently high to trigger formation of anorthite which stayed stable even at temperature as high as 1400°C. The highest relative density and the lowest open porosity were measured in samples sintered at 1200°C for 3 h. The effect of milling time of Ca-LTA zeolite precursor on density, microstructure and mechanical properties of samples sintered at 1200°C for 3 h was investigated. The particle size refinement appeared to be beneficial in accelerating densification process and improving mechanical properties. The density, compressive strength and hardness of anorthite ceramics obtained from non-milled precursor were measured to be 70.5 %TD, 64 MPa and 1.45 GPa, respectively. On the other side the anorthite ceramics obtained from 24-hour-long milled zeolite precursor had density of 83.9 %TD, compressive strength of 101 MPa and hardness of 3.44 GPa.
T2  - Science of Sintering
T1  - Effect of Milling Time on Mechanical Properties of Anorthite Obtained by Thermal Transformation of Ca-LTA Zeolite
VL  - 54
IS  - 3
SP  - 349
EP  - 358
DO  - 10.2298/SOS2203349O
ER  - 
@article{
author = "Omerašević, Mia and Baščarević, Zvezdana D. and Vujasin, Radojka and Devečerski, Aleksandar and Bučevac, Dušan",
year = "2022",
abstract = "Anorthite ceramics was fabricated from calcium exchanged Na-LTA zeolite. The powder compacts of Ca-LTA zeolite were sintered at different temperatures ranging between 1100 and 1400°C. It was found that the temperature of 1100°C was sufficiently high to trigger formation of anorthite which stayed stable even at temperature as high as 1400°C. The highest relative density and the lowest open porosity were measured in samples sintered at 1200°C for 3 h. The effect of milling time of Ca-LTA zeolite precursor on density, microstructure and mechanical properties of samples sintered at 1200°C for 3 h was investigated. The particle size refinement appeared to be beneficial in accelerating densification process and improving mechanical properties. The density, compressive strength and hardness of anorthite ceramics obtained from non-milled precursor were measured to be 70.5 %TD, 64 MPa and 1.45 GPa, respectively. On the other side the anorthite ceramics obtained from 24-hour-long milled zeolite precursor had density of 83.9 %TD, compressive strength of 101 MPa and hardness of 3.44 GPa.",
journal = "Science of Sintering",
title = "Effect of Milling Time on Mechanical Properties of Anorthite Obtained by Thermal Transformation of Ca-LTA Zeolite",
volume = "54",
number = "3",
pages = "349-358",
doi = "10.2298/SOS2203349O"
}
Omerašević, M., Baščarević, Z. D., Vujasin, R., Devečerski, A.,& Bučevac, D.. (2022). Effect of Milling Time on Mechanical Properties of Anorthite Obtained by Thermal Transformation of Ca-LTA Zeolite. in Science of Sintering, 54(3), 349-358.
https://doi.org/10.2298/SOS2203349O
Omerašević M, Baščarević ZD, Vujasin R, Devečerski A, Bučevac D. Effect of Milling Time on Mechanical Properties of Anorthite Obtained by Thermal Transformation of Ca-LTA Zeolite. in Science of Sintering. 2022;54(3):349-358.
doi:10.2298/SOS2203349O .
Omerašević, Mia, Baščarević, Zvezdana D., Vujasin, Radojka, Devečerski, Aleksandar, Bučevac, Dušan, "Effect of Milling Time on Mechanical Properties of Anorthite Obtained by Thermal Transformation of Ca-LTA Zeolite" in Science of Sintering, 54, no. 3 (2022):349-358,
https://doi.org/10.2298/SOS2203349O . .
1
1

Black inorganic pigments obtained from waste materials

Devečerski, Aleksandar; Kumrić, Ksenija; Stanković, S.; Egerić, Marija; Omerašević, Mia; Krstić, Sanja; Vujasin, Radojka

(Society of Physical Chemists of Serbia, 2021)

TY  - CONF
AU  - Devečerski, Aleksandar
AU  - Kumrić, Ksenija
AU  - Stanković, S.
AU  - Egerić, Marija
AU  - Omerašević, Mia
AU  - Krstić, Sanja
AU  - Vujasin, Radojka
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12076
AB  - Hazardous industrial wastes are the most common source of environmental pollution. Waters originating from unregulated landfills and places of inadequate disposal of this type of wastes can pollute the water sources and affect the human health. In this study, electroplating waste sludge (ES) and various Fe-rich wastes were used as starting materials for the synthesis of inorganic pigments. Obtained black Cr1.3Fe0.7O3 pigments possess adequate properties required for use as inorganic pigments.
PB  - Society of Physical Chemists of Serbia
C3  - Physical chemistry 2021 : 15th international conference on fundamental and applied aspects of physical chemistry
T1  - Black inorganic pigments obtained from waste materials
VL  - II
SP  - 580
EP  - 583
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12076
ER  - 
@conference{
author = "Devečerski, Aleksandar and Kumrić, Ksenija and Stanković, S. and Egerić, Marija and Omerašević, Mia and Krstić, Sanja and Vujasin, Radojka",
year = "2021",
abstract = "Hazardous industrial wastes are the most common source of environmental pollution. Waters originating from unregulated landfills and places of inadequate disposal of this type of wastes can pollute the water sources and affect the human health. In this study, electroplating waste sludge (ES) and various Fe-rich wastes were used as starting materials for the synthesis of inorganic pigments. Obtained black Cr1.3Fe0.7O3 pigments possess adequate properties required for use as inorganic pigments.",
publisher = "Society of Physical Chemists of Serbia",
journal = "Physical chemistry 2021 : 15th international conference on fundamental and applied aspects of physical chemistry",
title = "Black inorganic pigments obtained from waste materials",
volume = "II",
pages = "580-583",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12076"
}
Devečerski, A., Kumrić, K., Stanković, S., Egerić, M., Omerašević, M., Krstić, S.,& Vujasin, R.. (2021). Black inorganic pigments obtained from waste materials. in Physical chemistry 2021 : 15th international conference on fundamental and applied aspects of physical chemistry
Society of Physical Chemists of Serbia., II, 580-583.
https://hdl.handle.net/21.15107/rcub_vinar_12076
Devečerski A, Kumrić K, Stanković S, Egerić M, Omerašević M, Krstić S, Vujasin R. Black inorganic pigments obtained from waste materials. in Physical chemistry 2021 : 15th international conference on fundamental and applied aspects of physical chemistry. 2021;II:580-583.
https://hdl.handle.net/21.15107/rcub_vinar_12076 .
Devečerski, Aleksandar, Kumrić, Ksenija, Stanković, S., Egerić, Marija, Omerašević, Mia, Krstić, Sanja, Vujasin, Radojka, "Black inorganic pigments obtained from waste materials" in Physical chemistry 2021 : 15th international conference on fundamental and applied aspects of physical chemistry, II (2021):580-583,
https://hdl.handle.net/21.15107/rcub_vinar_12076 .

Waste tire carbon in synergetic interaction with spent gamma radioactive source for efficient radiocatalytic degradation of organic dye

Matović, Ljiljana; Vujasin, Radojka; Kumrić, Ksenija; Devečerski, Aleksandar; Wu, Yi-nan ; Kabtamu, Daniel M.; Mirković, Marija D.; Omerašević, Mia; Petrović, Đorđe

(2021)

TY  - JOUR
AU  - Matović, Ljiljana
AU  - Vujasin, Radojka
AU  - Kumrić, Ksenija
AU  - Devečerski, Aleksandar
AU  - Wu, Yi-nan 
AU  - Kabtamu, Daniel M.
AU  - Mirković, Marija D.
AU  - Omerašević, Mia
AU  - Petrović, Đorđe
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9791
AB  - Enhanced degradation of organic dye was achieved using two different kinds of waste materials: waste tire granules and spent sealed radioactive sources. Waste tire granules were used as raw material for the production of waste tire char (WTC), which was further utilized as an adsorbent matrix for synergetic adsorption/irradiation degradation of organic dye. The spent radioactive sources were radiographic sealed sources that originate from the industry which generate the high energy radiation. Methylene Blue (MB) was used as an organic model compound. Synthesized WTC has turbostratic structure, irregular shaped particles and developed mesoporous surface. Complete degradation of 0.02 dm3 of 100 mg dm−3 MB solution, having WTC dose of 1.25 g dm−3, was achieved with delivered doze of only 60 Gy. The applied doses were 100 times smaller than those presented in the literature. Degradation pathway was determined: OH radicals that originate from radiolysis of water and from the surface of WTC played the crucial role in the radiocatalytic degradation of MB. Breakage of the aromatic ring of MB appeared by the scission of the double C‒S+˭C bond as a result of the attack of OH species on adsorbed and electronically reorganized MB molecule. © 2020 Elsevier B.V.
T2  - Journal of Hazardous Materials
T1  - Waste tire carbon in synergetic interaction with spent gamma radioactive source for efficient radiocatalytic degradation of organic dye
VL  - 408
DO  - 10.1016/j.jhazmat.2020.124922
ER  - 
@article{
author = "Matović, Ljiljana and Vujasin, Radojka and Kumrić, Ksenija and Devečerski, Aleksandar and Wu, Yi-nan  and Kabtamu, Daniel M. and Mirković, Marija D. and Omerašević, Mia and Petrović, Đorđe",
year = "2021",
abstract = "Enhanced degradation of organic dye was achieved using two different kinds of waste materials: waste tire granules and spent sealed radioactive sources. Waste tire granules were used as raw material for the production of waste tire char (WTC), which was further utilized as an adsorbent matrix for synergetic adsorption/irradiation degradation of organic dye. The spent radioactive sources were radiographic sealed sources that originate from the industry which generate the high energy radiation. Methylene Blue (MB) was used as an organic model compound. Synthesized WTC has turbostratic structure, irregular shaped particles and developed mesoporous surface. Complete degradation of 0.02 dm3 of 100 mg dm−3 MB solution, having WTC dose of 1.25 g dm−3, was achieved with delivered doze of only 60 Gy. The applied doses were 100 times smaller than those presented in the literature. Degradation pathway was determined: OH radicals that originate from radiolysis of water and from the surface of WTC played the crucial role in the radiocatalytic degradation of MB. Breakage of the aromatic ring of MB appeared by the scission of the double C‒S+˭C bond as a result of the attack of OH species on adsorbed and electronically reorganized MB molecule. © 2020 Elsevier B.V.",
journal = "Journal of Hazardous Materials",
title = "Waste tire carbon in synergetic interaction with spent gamma radioactive source for efficient radiocatalytic degradation of organic dye",
volume = "408",
doi = "10.1016/j.jhazmat.2020.124922"
}
Matović, L., Vujasin, R., Kumrić, K., Devečerski, A., Wu, Y., Kabtamu, D. M., Mirković, M. D., Omerašević, M.,& Petrović, Đ.. (2021). Waste tire carbon in synergetic interaction with spent gamma radioactive source for efficient radiocatalytic degradation of organic dye. in Journal of Hazardous Materials, 408.
https://doi.org/10.1016/j.jhazmat.2020.124922
Matović L, Vujasin R, Kumrić K, Devečerski A, Wu Y, Kabtamu DM, Mirković MD, Omerašević M, Petrović Đ. Waste tire carbon in synergetic interaction with spent gamma radioactive source for efficient radiocatalytic degradation of organic dye. in Journal of Hazardous Materials. 2021;408.
doi:10.1016/j.jhazmat.2020.124922 .
Matović, Ljiljana, Vujasin, Radojka, Kumrić, Ksenija, Devečerski, Aleksandar, Wu, Yi-nan , Kabtamu, Daniel M., Mirković, Marija D., Omerašević, Mia, Petrović, Đorđe, "Waste tire carbon in synergetic interaction with spent gamma radioactive source for efficient radiocatalytic degradation of organic dye" in Journal of Hazardous Materials, 408 (2021),
https://doi.org/10.1016/j.jhazmat.2020.124922 . .
2
1

Novel cordierite-acicular mullite composite for diesel particulate filters

Omerašević, Mia; Kocjan, Andraž; Bučevac, Dušan

(2021)

TY  - JOUR
AU  - Omerašević, Mia
AU  - Kocjan, Andraž
AU  - Bučevac, Dušan
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9975
AB  - Cordierite-acicular mullite composites containing 0, 25, 50, 75 and 100 wt% of mullite were fabricated from waste MoSi2 and commercial powders of Al2O3 and spinel (MgAl2O4). Careful oxidation of pulverised waste MoSi2 rendered a precursor mixture of MoO3 and amorphous SiO2, which served as pore forming agent and SiO2 source, respectively. Evaporation of MoO3 at ∼750 °C allowed production of highly porous cordierite-mullite ceramic composite after sintering in air at 1350 °C for 4 h. The combination of equiaxed cordierite grains and elongated (prism-like) mullite grains, resulted in unique microstructure with open porosity between 53.3 and 55.6 vol% which makes the obtained composite convenient for application as diesel particulate filter material. The presence of mullite affected four key thermo-mechanical properties which determine the thermal shock resistance of cordierite-mullite composite. The best thermal shock resistance was measured in composite containing 75 wt% of mullite. It was a result of improved thermal conductivity (1.081 W/mK) and bending strength (3.62 MPa) and relatively low values of coefficient of thermal expansion (3.8 × 10−6 K−1) and elastic modulus (2.27 GPa).
T2  - Ceramics International
T1  - Novel cordierite-acicular mullite composite for diesel particulate filters
DO  - 10.1016/j.ceramint.2021.10.005
ER  - 
@article{
author = "Omerašević, Mia and Kocjan, Andraž and Bučevac, Dušan",
year = "2021",
abstract = "Cordierite-acicular mullite composites containing 0, 25, 50, 75 and 100 wt% of mullite were fabricated from waste MoSi2 and commercial powders of Al2O3 and spinel (MgAl2O4). Careful oxidation of pulverised waste MoSi2 rendered a precursor mixture of MoO3 and amorphous SiO2, which served as pore forming agent and SiO2 source, respectively. Evaporation of MoO3 at ∼750 °C allowed production of highly porous cordierite-mullite ceramic composite after sintering in air at 1350 °C for 4 h. The combination of equiaxed cordierite grains and elongated (prism-like) mullite grains, resulted in unique microstructure with open porosity between 53.3 and 55.6 vol% which makes the obtained composite convenient for application as diesel particulate filter material. The presence of mullite affected four key thermo-mechanical properties which determine the thermal shock resistance of cordierite-mullite composite. The best thermal shock resistance was measured in composite containing 75 wt% of mullite. It was a result of improved thermal conductivity (1.081 W/mK) and bending strength (3.62 MPa) and relatively low values of coefficient of thermal expansion (3.8 × 10−6 K−1) and elastic modulus (2.27 GPa).",
journal = "Ceramics International",
title = "Novel cordierite-acicular mullite composite for diesel particulate filters",
doi = "10.1016/j.ceramint.2021.10.005"
}
Omerašević, M., Kocjan, A.,& Bučevac, D.. (2021). Novel cordierite-acicular mullite composite for diesel particulate filters. in Ceramics International.
https://doi.org/10.1016/j.ceramint.2021.10.005
Omerašević M, Kocjan A, Bučevac D. Novel cordierite-acicular mullite composite for diesel particulate filters. in Ceramics International. 2021;.
doi:10.1016/j.ceramint.2021.10.005 .
Omerašević, Mia, Kocjan, Andraž, Bučevac, Dušan, "Novel cordierite-acicular mullite composite for diesel particulate filters" in Ceramics International (2021),
https://doi.org/10.1016/j.ceramint.2021.10.005 . .
10
7

Permanent disposal of Cs ions in the form of dense pollucite ceramics having low thermal expansion coefficient

Omerašević, Mia; Lukić, Miodrag; Savić-Biserčić, Marjetka; Savić, Andrija B.; Matović, Ljiljana; Baščarević, Zvezdana D.; Bučevac, Dušan

(2020)

TY  - JOUR
AU  - Omerašević, Mia
AU  - Lukić, Miodrag
AU  - Savić-Biserčić, Marjetka
AU  - Savić, Andrija B.
AU  - Matović, Ljiljana
AU  - Baščarević, Zvezdana D.
AU  - Bučevac, Dušan
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8563
AB  - A promising method for removal of Cs ions from water and their incorporation into stable crystal structure ready for safe and permanent disposal was described. Cs-exchanged X zeolite was hot-pressed at temperature ranging from 800 to 950 °C to fabricate dense pollucite ceramics. It was found that the application of external pressure reduced the pollucite formation temperature. The effect of sintering temperature on density, phase composition and mechanical properties was investigated. The highest density of 92.5 %TD and the highest compressive strength of 79 MPa were measured in pollucite hot-pressed at 950 °C for 3 h. Heterogeneity of samples obtained at 950 °C was determined using scanning electron microscopy. The pollucite hot-pressed at 950 °C had low linear thermal expansion coefficient of ∼4.67 × 10−6 K−1 in the temperature range from 100 to 1000 °C. © 2019
T2  - Nuclear Engineering and Technology
T1  - Permanent disposal of Cs ions in the form of dense pollucite ceramics having low thermal expansion coefficient
VL  - 52
IS  - 1
SP  - 115
EP  - 122
DO  - 10.1016/j.net.2019.07.001
ER  - 
@article{
author = "Omerašević, Mia and Lukić, Miodrag and Savić-Biserčić, Marjetka and Savić, Andrija B. and Matović, Ljiljana and Baščarević, Zvezdana D. and Bučevac, Dušan",
year = "2020",
abstract = "A promising method for removal of Cs ions from water and their incorporation into stable crystal structure ready for safe and permanent disposal was described. Cs-exchanged X zeolite was hot-pressed at temperature ranging from 800 to 950 °C to fabricate dense pollucite ceramics. It was found that the application of external pressure reduced the pollucite formation temperature. The effect of sintering temperature on density, phase composition and mechanical properties was investigated. The highest density of 92.5 %TD and the highest compressive strength of 79 MPa were measured in pollucite hot-pressed at 950 °C for 3 h. Heterogeneity of samples obtained at 950 °C was determined using scanning electron microscopy. The pollucite hot-pressed at 950 °C had low linear thermal expansion coefficient of ∼4.67 × 10−6 K−1 in the temperature range from 100 to 1000 °C. © 2019",
journal = "Nuclear Engineering and Technology",
title = "Permanent disposal of Cs ions in the form of dense pollucite ceramics having low thermal expansion coefficient",
volume = "52",
number = "1",
pages = "115-122",
doi = "10.1016/j.net.2019.07.001"
}
Omerašević, M., Lukić, M., Savić-Biserčić, M., Savić, A. B., Matović, L., Baščarević, Z. D.,& Bučevac, D.. (2020). Permanent disposal of Cs ions in the form of dense pollucite ceramics having low thermal expansion coefficient. in Nuclear Engineering and Technology, 52(1), 115-122.
https://doi.org/10.1016/j.net.2019.07.001
Omerašević M, Lukić M, Savić-Biserčić M, Savić AB, Matović L, Baščarević ZD, Bučevac D. Permanent disposal of Cs ions in the form of dense pollucite ceramics having low thermal expansion coefficient. in Nuclear Engineering and Technology. 2020;52(1):115-122.
doi:10.1016/j.net.2019.07.001 .
Omerašević, Mia, Lukić, Miodrag, Savić-Biserčić, Marjetka, Savić, Andrija B., Matović, Ljiljana, Baščarević, Zvezdana D., Bučevac, Dušan, "Permanent disposal of Cs ions in the form of dense pollucite ceramics having low thermal expansion coefficient" in Nuclear Engineering and Technology, 52, no. 1 (2020):115-122,
https://doi.org/10.1016/j.net.2019.07.001 . .
12
3
10

Effect of YAG content on creep resistance and mechanical properties of Al2O3-YAG composite

Bučevac, Dušan; Omerašević, Mia; Egelja, Adela; Radovanović, Željko; Kljajević, Ljiljana M.; Nenadović, Snežana S.; Krstić, Vladimir

(2020)

TY  - JOUR
AU  - Bučevac, Dušan
AU  - Omerašević, Mia
AU  - Egelja, Adela
AU  - Radovanović, Željko
AU  - Kljajević, Ljiljana M.
AU  - Nenadović, Snežana S.
AU  - Krstić, Vladimir
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8888
AB  - Comprehensive study on effect of YAG amount on densification, creep resistance and room-temperature mechanical properties of Al2O3-YAG composite pressureless sintered at 1600 degrees C was conducted. The main goal was to optimize the amount of YAG in order to fabricate a composite with improved creep resistance and sufficiently good room-temperature mechanical properties. The composite was made by mixing a commercially available Al2O3 powder with fine YAG powder obtained by glycine-nitrate combustion synthesis starting from aluminum nitrate and yttrium nitrate. Increased driving force for sintering of fine YAG powder allowed fabrication of dense Al2O3-YAG composite with up to 30 vol% YAG. The presence of YAG was found to be very effective in improving creep resistance of Al2O3-YAG composite. Large Y3+ ions blocked diffusion along Al2O3 grain boundaries, reduced diffusivity and therefore enhanced creep resistance of Al2O3-YAG composite which continuously increased as the YAG amount increased. The presence of YAG was also found to improve mechanical properties such as hardness and elastic modulus. The improvement of these properties was ascribed to increased density of Al(2)O(3)YAG composites owing to high sintering activity of YAG powder. While fracture strength of the composite can be as high as that of monolithic Al2O3, fracture toughness of composite decreased continuously as the YAG content increased. The decrease was ascribed to transgranular fracture of both YAG and Al2O3 grains in samples containing larger amounts of YAG. The proper balance between fracture toughness and creep resistance was found in composite containing 18 vol% YAG which had considerably improved creep resistance accompanied by a relatively small decrease in fracture toughness.
T2  - Ceramics International
T1  - Effect of YAG content on creep resistance and mechanical properties of Al2O3-YAG composite
VL  - 46
IS  - 10
SP  - 15998
EP  - 16007
DO  - 10.1016/j.ceramint.2020.03.150
ER  - 
@article{
author = "Bučevac, Dušan and Omerašević, Mia and Egelja, Adela and Radovanović, Željko and Kljajević, Ljiljana M. and Nenadović, Snežana S. and Krstić, Vladimir",
year = "2020",
abstract = "Comprehensive study on effect of YAG amount on densification, creep resistance and room-temperature mechanical properties of Al2O3-YAG composite pressureless sintered at 1600 degrees C was conducted. The main goal was to optimize the amount of YAG in order to fabricate a composite with improved creep resistance and sufficiently good room-temperature mechanical properties. The composite was made by mixing a commercially available Al2O3 powder with fine YAG powder obtained by glycine-nitrate combustion synthesis starting from aluminum nitrate and yttrium nitrate. Increased driving force for sintering of fine YAG powder allowed fabrication of dense Al2O3-YAG composite with up to 30 vol% YAG. The presence of YAG was found to be very effective in improving creep resistance of Al2O3-YAG composite. Large Y3+ ions blocked diffusion along Al2O3 grain boundaries, reduced diffusivity and therefore enhanced creep resistance of Al2O3-YAG composite which continuously increased as the YAG amount increased. The presence of YAG was also found to improve mechanical properties such as hardness and elastic modulus. The improvement of these properties was ascribed to increased density of Al(2)O(3)YAG composites owing to high sintering activity of YAG powder. While fracture strength of the composite can be as high as that of monolithic Al2O3, fracture toughness of composite decreased continuously as the YAG content increased. The decrease was ascribed to transgranular fracture of both YAG and Al2O3 grains in samples containing larger amounts of YAG. The proper balance between fracture toughness and creep resistance was found in composite containing 18 vol% YAG which had considerably improved creep resistance accompanied by a relatively small decrease in fracture toughness.",
journal = "Ceramics International",
title = "Effect of YAG content on creep resistance and mechanical properties of Al2O3-YAG composite",
volume = "46",
number = "10",
pages = "15998-16007",
doi = "10.1016/j.ceramint.2020.03.150"
}
Bučevac, D., Omerašević, M., Egelja, A., Radovanović, Ž., Kljajević, L. M., Nenadović, S. S.,& Krstić, V.. (2020). Effect of YAG content on creep resistance and mechanical properties of Al2O3-YAG composite. in Ceramics International, 46(10), 15998-16007.
https://doi.org/10.1016/j.ceramint.2020.03.150
Bučevac D, Omerašević M, Egelja A, Radovanović Ž, Kljajević LM, Nenadović SS, Krstić V. Effect of YAG content on creep resistance and mechanical properties of Al2O3-YAG composite. in Ceramics International. 2020;46(10):15998-16007.
doi:10.1016/j.ceramint.2020.03.150 .
Bučevac, Dušan, Omerašević, Mia, Egelja, Adela, Radovanović, Željko, Kljajević, Ljiljana M., Nenadović, Snežana S., Krstić, Vladimir, "Effect of YAG content on creep resistance and mechanical properties of Al2O3-YAG composite" in Ceramics International, 46, no. 10 (2020):15998-16007,
https://doi.org/10.1016/j.ceramint.2020.03.150 . .
17
5
17

Porous acicular mullite ceramics fabricated with in situ formed soot oxidation catalyst obtained from waste MoSi2

Bučevac, Dušan; Maletaškić, Jelena; Omerašević, Mia; Matović, Branko; Wang, Chang-An

(2017)

TY  - JOUR
AU  - Bučevac, Dušan
AU  - Maletaškić, Jelena
AU  - Omerašević, Mia
AU  - Matović, Branko
AU  - Wang, Chang-An
PY  - 2017
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1659
AB  - Porous acicular mullite (3Al(2)O(3)center dot 2SiO(2)) ceramics containing Cu3Mo2O9 as a soot oxidation catalyst was fabricated by a novel approach using commercial powders of Al2O3 and CuO, and powder obtained by controlled oxidation of ground waste MoSi2. The obtained material consisted of elongated mullite grains which are known to be effective in carbon soot removal from diesel engine exhaust. The presence of in situ created Cu3Mo2O9 was found to catalyze the carbon burnout which is an extremely important feature when it comes to filter regeneration, i.e., the captured soot removal. The carbon burnout temperature in the sample containing 12 wt% CuO was by 90 degrees C lower than that in the sample without CuO. Effect of sintering temperature as well as the effect of amount of CuO additive on mullite properties were studied. It was found that the increase in amount of CuO in samples sintered at 1300 degrees C decreased porosity and increased compressive strength of the porous mullite ceramics. The addition of 12 wt% CuO increased the strength of the porous mullite ceramics up to 70 MPa, whereas the porosity was reduced from 62% in the mullite without CuO to 44% in the mullite ceramics containing 12 wt% CuO. Although affected by the amount of CuO, the microstructure still consisted of elongated mullite grains.
T2  - Ceramics International
T1  - Porous acicular mullite ceramics fabricated with in situ formed soot oxidation catalyst obtained from waste MoSi2
VL  - 43
IS  - 13
SP  - 9815
EP  - 9822
DO  - 10.1016/j.ceramint.2017.04.161
ER  - 
@article{
author = "Bučevac, Dušan and Maletaškić, Jelena and Omerašević, Mia and Matović, Branko and Wang, Chang-An",
year = "2017",
abstract = "Porous acicular mullite (3Al(2)O(3)center dot 2SiO(2)) ceramics containing Cu3Mo2O9 as a soot oxidation catalyst was fabricated by a novel approach using commercial powders of Al2O3 and CuO, and powder obtained by controlled oxidation of ground waste MoSi2. The obtained material consisted of elongated mullite grains which are known to be effective in carbon soot removal from diesel engine exhaust. The presence of in situ created Cu3Mo2O9 was found to catalyze the carbon burnout which is an extremely important feature when it comes to filter regeneration, i.e., the captured soot removal. The carbon burnout temperature in the sample containing 12 wt% CuO was by 90 degrees C lower than that in the sample without CuO. Effect of sintering temperature as well as the effect of amount of CuO additive on mullite properties were studied. It was found that the increase in amount of CuO in samples sintered at 1300 degrees C decreased porosity and increased compressive strength of the porous mullite ceramics. The addition of 12 wt% CuO increased the strength of the porous mullite ceramics up to 70 MPa, whereas the porosity was reduced from 62% in the mullite without CuO to 44% in the mullite ceramics containing 12 wt% CuO. Although affected by the amount of CuO, the microstructure still consisted of elongated mullite grains.",
journal = "Ceramics International",
title = "Porous acicular mullite ceramics fabricated with in situ formed soot oxidation catalyst obtained from waste MoSi2",
volume = "43",
number = "13",
pages = "9815-9822",
doi = "10.1016/j.ceramint.2017.04.161"
}
Bučevac, D., Maletaškić, J., Omerašević, M., Matović, B.,& Wang, C.. (2017). Porous acicular mullite ceramics fabricated with in situ formed soot oxidation catalyst obtained from waste MoSi2. in Ceramics International, 43(13), 9815-9822.
https://doi.org/10.1016/j.ceramint.2017.04.161
Bučevac D, Maletaškić J, Omerašević M, Matović B, Wang C. Porous acicular mullite ceramics fabricated with in situ formed soot oxidation catalyst obtained from waste MoSi2. in Ceramics International. 2017;43(13):9815-9822.
doi:10.1016/j.ceramint.2017.04.161 .
Bučevac, Dušan, Maletaškić, Jelena, Omerašević, Mia, Matović, Branko, Wang, Chang-An, "Porous acicular mullite ceramics fabricated with in situ formed soot oxidation catalyst obtained from waste MoSi2" in Ceramics International, 43, no. 13 (2017):9815-9822,
https://doi.org/10.1016/j.ceramint.2017.04.161 . .
7
7
8

Transformation of Cs-exchanged clinoptilolite to CsAlSi5O12 by hot-pressing

Omerašević, Mia; Ružić, Jovana; Vasiljević-Nedić, Bojana; Baščarević, Zvezdana D.; Bučevac, Dušan; Orlić, Jovana; Matović, Ljiljana

(2017)

TY  - JOUR
AU  - Omerašević, Mia
AU  - Ružić, Jovana
AU  - Vasiljević-Nedić, Bojana
AU  - Baščarević, Zvezdana D.
AU  - Bučevac, Dušan
AU  - Orlić, Jovana
AU  - Matović, Ljiljana
PY  - 2017
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1734
AB  - Dense CsAlSi5O12 was successfully obtained by hot pressing of Cs-exchanged clinoptilolite at 900 degrees C. Simultaneous application of high temperature and mechanical pressure allowed formation of CsAlSi5O12 at temperature considerably lower than 1150 degrees C which was the lowest reported temperature of CsAlSi5O12 formation in pressureless sintered Cs-exchanged clinoptilolite. CsAlSi5O12 formation was preceded by complete amorphisation of Cs-exchanged clinoptilolite in temperature range between 700 and 900 degrees C. Bearing in mind that clinoptilolite possesses high affinity for Cs cation it is believed that hot pressing of Cs-exchanged clinoptilolite might be an efficient way to immobilize radioactive Cs by its incorporation into crystal lattice of stable CsAlSi5O12. The samples sintered at 950 degrees C had relative density about 84% of theoretical density and open porosity of only 6% which is expected to result in low Cs leaching rate.
T2  - Ceramics International
T1  - Transformation of Cs-exchanged clinoptilolite to CsAlSi5O12 by hot-pressing
VL  - 43
IS  - 16
SP  - 13500
EP  - 13504
DO  - 10.1016/j.ceramint.2017.07.055
ER  - 
@article{
author = "Omerašević, Mia and Ružić, Jovana and Vasiljević-Nedić, Bojana and Baščarević, Zvezdana D. and Bučevac, Dušan and Orlić, Jovana and Matović, Ljiljana",
year = "2017",
abstract = "Dense CsAlSi5O12 was successfully obtained by hot pressing of Cs-exchanged clinoptilolite at 900 degrees C. Simultaneous application of high temperature and mechanical pressure allowed formation of CsAlSi5O12 at temperature considerably lower than 1150 degrees C which was the lowest reported temperature of CsAlSi5O12 formation in pressureless sintered Cs-exchanged clinoptilolite. CsAlSi5O12 formation was preceded by complete amorphisation of Cs-exchanged clinoptilolite in temperature range between 700 and 900 degrees C. Bearing in mind that clinoptilolite possesses high affinity for Cs cation it is believed that hot pressing of Cs-exchanged clinoptilolite might be an efficient way to immobilize radioactive Cs by its incorporation into crystal lattice of stable CsAlSi5O12. The samples sintered at 950 degrees C had relative density about 84% of theoretical density and open porosity of only 6% which is expected to result in low Cs leaching rate.",
journal = "Ceramics International",
title = "Transformation of Cs-exchanged clinoptilolite to CsAlSi5O12 by hot-pressing",
volume = "43",
number = "16",
pages = "13500-13504",
doi = "10.1016/j.ceramint.2017.07.055"
}
Omerašević, M., Ružić, J., Vasiljević-Nedić, B., Baščarević, Z. D., Bučevac, D., Orlić, J.,& Matović, L.. (2017). Transformation of Cs-exchanged clinoptilolite to CsAlSi5O12 by hot-pressing. in Ceramics International, 43(16), 13500-13504.
https://doi.org/10.1016/j.ceramint.2017.07.055
Omerašević M, Ružić J, Vasiljević-Nedić B, Baščarević ZD, Bučevac D, Orlić J, Matović L. Transformation of Cs-exchanged clinoptilolite to CsAlSi5O12 by hot-pressing. in Ceramics International. 2017;43(16):13500-13504.
doi:10.1016/j.ceramint.2017.07.055 .
Omerašević, Mia, Ružić, Jovana, Vasiljević-Nedić, Bojana, Baščarević, Zvezdana D., Bučevac, Dušan, Orlić, Jovana, Matović, Ljiljana, "Transformation of Cs-exchanged clinoptilolite to CsAlSi5O12 by hot-pressing" in Ceramics International, 43, no. 16 (2017):13500-13504,
https://doi.org/10.1016/j.ceramint.2017.07.055 . .
10
5
8

Safe trapping of cesium into pollucite structure by hot-pressing method

Omerašević, Mia; Matović, Ljiljana; Ružić, Jovana; Golubović, Željko; Jovanović, Uroš D.; Mentus, Slavko V.; Dondur, Vera

(Elsevier, 2016)

TY  - JOUR
AU  - Omerašević, Mia
AU  - Matović, Ljiljana
AU  - Ružić, Jovana
AU  - Golubović, Željko
AU  - Jovanović, Uroš D.
AU  - Mentus, Slavko V.
AU  - Dondur, Vera
PY  - 2016
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1038
AB  - A simple one-step method with direct thermal conversion at lower temperatures for preparing a stabile Cs-aluminsilicate phase, known as pollucite, is presented. Cs-exchanged form of Na, Ca-LTA type of zeolite (Cs-LTA) was pressureless sintered and hot pressed at certain temperatures in order to obtain pollucite. XRD and FTIR analysis were used to study structural changes of Cs-LTA before and after thermal treatments. Pressureless sintered sample recrystallized into pollucite phase after heat treatment at 1000 degrees C (3 h) (PLS1000) and hot pressed sample at 750 degrees C (3 h) using pressure of 35 MPa (HP750), indicating reduced temperature of 250 degrees. SEM micrographs confirmed that HP750 has higher density than PLS1000 which leads to higher value of compressive strength. The HP750 showed better resistance to Cs leaching than the PLS1000. Base on these results one can conclude that hot pressing is the promising method for the permanent disposal of Cs radionuclides. (C) 2016 Elsevier B.V. All rights reserved.
PB  - Elsevier
T2  - Journal of Nuclear Materials
T1  - Safe trapping of cesium into pollucite structure by hot-pressing method
VL  - 474
SP  - 35
EP  - 44
DO  - 10.1016/j.jnucmat.2016.03.006
ER  - 
@article{
author = "Omerašević, Mia and Matović, Ljiljana and Ružić, Jovana and Golubović, Željko and Jovanović, Uroš D. and Mentus, Slavko V. and Dondur, Vera",
year = "2016",
abstract = "A simple one-step method with direct thermal conversion at lower temperatures for preparing a stabile Cs-aluminsilicate phase, known as pollucite, is presented. Cs-exchanged form of Na, Ca-LTA type of zeolite (Cs-LTA) was pressureless sintered and hot pressed at certain temperatures in order to obtain pollucite. XRD and FTIR analysis were used to study structural changes of Cs-LTA before and after thermal treatments. Pressureless sintered sample recrystallized into pollucite phase after heat treatment at 1000 degrees C (3 h) (PLS1000) and hot pressed sample at 750 degrees C (3 h) using pressure of 35 MPa (HP750), indicating reduced temperature of 250 degrees. SEM micrographs confirmed that HP750 has higher density than PLS1000 which leads to higher value of compressive strength. The HP750 showed better resistance to Cs leaching than the PLS1000. Base on these results one can conclude that hot pressing is the promising method for the permanent disposal of Cs radionuclides. (C) 2016 Elsevier B.V. All rights reserved.",
publisher = "Elsevier",
journal = "Journal of Nuclear Materials",
title = "Safe trapping of cesium into pollucite structure by hot-pressing method",
volume = "474",
pages = "35-44",
doi = "10.1016/j.jnucmat.2016.03.006"
}
Omerašević, M., Matović, L., Ružić, J., Golubović, Ž., Jovanović, U. D., Mentus, S. V.,& Dondur, V.. (2016). Safe trapping of cesium into pollucite structure by hot-pressing method. in Journal of Nuclear Materials
Elsevier., 474, 35-44.
https://doi.org/10.1016/j.jnucmat.2016.03.006
Omerašević M, Matović L, Ružić J, Golubović Ž, Jovanović UD, Mentus SV, Dondur V. Safe trapping of cesium into pollucite structure by hot-pressing method. in Journal of Nuclear Materials. 2016;474:35-44.
doi:10.1016/j.jnucmat.2016.03.006 .
Omerašević, Mia, Matović, Ljiljana, Ružić, Jovana, Golubović, Željko, Jovanović, Uroš D., Mentus, Slavko V., Dondur, Vera, "Safe trapping of cesium into pollucite structure by hot-pressing method" in Journal of Nuclear Materials, 474 (2016):35-44,
https://doi.org/10.1016/j.jnucmat.2016.03.006 . .
40
28
47

Removal of Cs Ions from Aqueous Solutions by Using Matrices of Natural Clinoptilolite and its Safe Disposal

Omerašević, Mia; Ružić, Jovana; Vuković, Nikola; Jovanović, Uroš D.; Mirković, Miljana M.; Maksimović, Vesna; Dondur, Vera

(2016)

TY  - JOUR
AU  - Omerašević, Mia
AU  - Ružić, Jovana
AU  - Vuković, Nikola
AU  - Jovanović, Uroš D.
AU  - Mirković, Miljana M.
AU  - Maksimović, Vesna
AU  - Dondur, Vera
PY  - 2016
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1130
AB  - The possibility to use natural zeolite - clinoptilolite as a host material for radioactive Cs immobilization has been investigated. Cs-exchanged form of clinoptilolite which was prepared by treatment of clinoptilolite powder with 0.25 M CsCl solution was compacted. Both, powder and powder compact of exchanged clinoptilolite were thermally treated at 1200 C-0. The XRPD analysis showed that Cs was successfully immobilized after heat treatment by formation of stable cesium dodecaoxo-alumopentasilicate in both, powder sample and compact. The newly formed compound showed satisfactory Cs ions retention during leaching test. The sintered compact showed somewhat better resistance to Cs leaching than the thermally treated powder. The compressive strength of sintered compact was close to 200 MPa which is more than enough for easy handling and safe storage.
T2  - Science of Sintering
T1  - Removal of Cs Ions from Aqueous Solutions by Using Matrices of Natural Clinoptilolite and its Safe Disposal
VL  - 48
IS  - 1
SP  - 101
EP  - 107
DO  - 10.2298/SOS1601101O
ER  - 
@article{
author = "Omerašević, Mia and Ružić, Jovana and Vuković, Nikola and Jovanović, Uroš D. and Mirković, Miljana M. and Maksimović, Vesna and Dondur, Vera",
year = "2016",
abstract = "The possibility to use natural zeolite - clinoptilolite as a host material for radioactive Cs immobilization has been investigated. Cs-exchanged form of clinoptilolite which was prepared by treatment of clinoptilolite powder with 0.25 M CsCl solution was compacted. Both, powder and powder compact of exchanged clinoptilolite were thermally treated at 1200 C-0. The XRPD analysis showed that Cs was successfully immobilized after heat treatment by formation of stable cesium dodecaoxo-alumopentasilicate in both, powder sample and compact. The newly formed compound showed satisfactory Cs ions retention during leaching test. The sintered compact showed somewhat better resistance to Cs leaching than the thermally treated powder. The compressive strength of sintered compact was close to 200 MPa which is more than enough for easy handling and safe storage.",
journal = "Science of Sintering",
title = "Removal of Cs Ions from Aqueous Solutions by Using Matrices of Natural Clinoptilolite and its Safe Disposal",
volume = "48",
number = "1",
pages = "101-107",
doi = "10.2298/SOS1601101O"
}
Omerašević, M., Ružić, J., Vuković, N., Jovanović, U. D., Mirković, M. M., Maksimović, V.,& Dondur, V.. (2016). Removal of Cs Ions from Aqueous Solutions by Using Matrices of Natural Clinoptilolite and its Safe Disposal. in Science of Sintering, 48(1), 101-107.
https://doi.org/10.2298/SOS1601101O
Omerašević M, Ružić J, Vuković N, Jovanović UD, Mirković MM, Maksimović V, Dondur V. Removal of Cs Ions from Aqueous Solutions by Using Matrices of Natural Clinoptilolite and its Safe Disposal. in Science of Sintering. 2016;48(1):101-107.
doi:10.2298/SOS1601101O .
Omerašević, Mia, Ružić, Jovana, Vuković, Nikola, Jovanović, Uroš D., Mirković, Miljana M., Maksimović, Vesna, Dondur, Vera, "Removal of Cs Ions from Aqueous Solutions by Using Matrices of Natural Clinoptilolite and its Safe Disposal" in Science of Sintering, 48, no. 1 (2016):101-107,
https://doi.org/10.2298/SOS1601101O . .
4
3
6

Safe trapping of Cs radionuclides in sintered matrix of zeolites

Omerašević, Mia; Lukić, Miodrag; Baščarević, Zvezdana D.; Orlić, Jovana; Mirković, Miljana M.; Savić-Biserčić, Marjetka; Matović, Ljiljana

(Belgrade : Institute of Technical Sciences of SASA, 2015)

TY  - CONF
AU  - Omerašević, Mia
AU  - Lukić, Miodrag
AU  - Baščarević, Zvezdana D.
AU  - Orlić, Jovana
AU  - Mirković, Miljana M.
AU  - Savić-Biserčić, Marjetka
AU  - Matović, Ljiljana
PY  - 2015
UR  - http://dais.sanu.ac.rs/123456789/837
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/7544
AB  - Cesium aluminosilicate phases are of the great interest as possible host for Cs immobilization in radioactive waste management. The possibility to use zeolite as a host material for radioactive Cs immobilization was investigated. Cs-exchanged forms of clinoptilolite and 13X which were prepared by ion-exchange treatment were compacted. The powders compacts of exchanged zeolites were thermally treated at 1200 °C. The XRD analysis showed that Cs was successfully immobilized after heat treatment by formation of stable cesium-aluminosilicate ceramic forms. Thermal and mechanical properties of the sintered samples were investigated. From the perspective of these characteristics, Cs-exchanged zeolite (clinoptilolite and 13 X) can be considered as a potential material for safe waste disposal.
PB  - Belgrade : Institute of Technical Sciences of SASA
C3  - Program and the Book of Abstracts / Fourteenth Young Researchers' Conference Materials Sciences and Engineering, December 9-11, 2015, Belgrade, Serbia
T1  - Safe trapping of Cs radionuclides in sintered matrix of zeolites
SP  - 45
EP  - 45
UR  - https://hdl.handle.net/21.15107/rcub_vinar_7544
ER  - 
@conference{
author = "Omerašević, Mia and Lukić, Miodrag and Baščarević, Zvezdana D. and Orlić, Jovana and Mirković, Miljana M. and Savić-Biserčić, Marjetka and Matović, Ljiljana",
year = "2015",
abstract = "Cesium aluminosilicate phases are of the great interest as possible host for Cs immobilization in radioactive waste management. The possibility to use zeolite as a host material for radioactive Cs immobilization was investigated. Cs-exchanged forms of clinoptilolite and 13X which were prepared by ion-exchange treatment were compacted. The powders compacts of exchanged zeolites were thermally treated at 1200 °C. The XRD analysis showed that Cs was successfully immobilized after heat treatment by formation of stable cesium-aluminosilicate ceramic forms. Thermal and mechanical properties of the sintered samples were investigated. From the perspective of these characteristics, Cs-exchanged zeolite (clinoptilolite and 13 X) can be considered as a potential material for safe waste disposal.",
publisher = "Belgrade : Institute of Technical Sciences of SASA",
journal = "Program and the Book of Abstracts / Fourteenth Young Researchers' Conference Materials Sciences and Engineering, December 9-11, 2015, Belgrade, Serbia",
title = "Safe trapping of Cs radionuclides in sintered matrix of zeolites",
pages = "45-45",
url = "https://hdl.handle.net/21.15107/rcub_vinar_7544"
}
Omerašević, M., Lukić, M., Baščarević, Z. D., Orlić, J., Mirković, M. M., Savić-Biserčić, M.,& Matović, L.. (2015). Safe trapping of Cs radionuclides in sintered matrix of zeolites. in Program and the Book of Abstracts / Fourteenth Young Researchers' Conference Materials Sciences and Engineering, December 9-11, 2015, Belgrade, Serbia
Belgrade : Institute of Technical Sciences of SASA., 45-45.
https://hdl.handle.net/21.15107/rcub_vinar_7544
Omerašević M, Lukić M, Baščarević ZD, Orlić J, Mirković MM, Savić-Biserčić M, Matović L. Safe trapping of Cs radionuclides in sintered matrix of zeolites. in Program and the Book of Abstracts / Fourteenth Young Researchers' Conference Materials Sciences and Engineering, December 9-11, 2015, Belgrade, Serbia. 2015;:45-45.
https://hdl.handle.net/21.15107/rcub_vinar_7544 .
Omerašević, Mia, Lukić, Miodrag, Baščarević, Zvezdana D., Orlić, Jovana, Mirković, Miljana M., Savić-Biserčić, Marjetka, Matović, Ljiljana, "Safe trapping of Cs radionuclides in sintered matrix of zeolites" in Program and the Book of Abstracts / Fourteenth Young Researchers' Conference Materials Sciences and Engineering, December 9-11, 2015, Belgrade, Serbia (2015):45-45,
https://hdl.handle.net/21.15107/rcub_vinar_7544 .

Natural Diatomite (Rudovci, Serbia) as Adsorbent for Removal Cs from Radioactive Waste Liquids

Nenadović, Snežana S.; Kljajević, Ljiljana M.; Marković, Smilja; Omerašević, Mia; Jovanović, Uroš D.; Andrić, Velibor; Vukanac, Ivana

(2015)

TY  - JOUR
AU  - Nenadović, Snežana S.
AU  - Kljajević, Ljiljana M.
AU  - Marković, Smilja
AU  - Omerašević, Mia
AU  - Jovanović, Uroš D.
AU  - Andrić, Velibor
AU  - Vukanac, Ivana
PY  - 2015
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/854
AB  - The removal of Cs (I) ions from aqueous solution was studied using natural diatomite as adsorption materials originated from Rudovci, Serbia. The microstructure of natural diatomite has been characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) while the degree of Cs adsorption was evaluated by atomic emission spectroscopy. The cation exchange capacity (CEC) values for natural diatomite was 50 meq/100g. Depending on whether the Cs adsorption occurred in the acidic and alkaline media at a temperature of 298.15 K in acidic media Delta G(0) values was -12.674 kJ/mol, while in alkaline media Delta G(0) was 13.142 kJ/mol and a change of Delta S-0 to 42.51 J/molK in acidic media and 44.08 J/molK in alkaline medium.
T2  - Science of Sintering
T1  - Natural Diatomite (Rudovci, Serbia) as Adsorbent for Removal Cs from Radioactive Waste Liquids
VL  - 47
IS  - 3
SP  - 299
EP  - 309
DO  - 10.2298/SOS1503299N
ER  - 
@article{
author = "Nenadović, Snežana S. and Kljajević, Ljiljana M. and Marković, Smilja and Omerašević, Mia and Jovanović, Uroš D. and Andrić, Velibor and Vukanac, Ivana",
year = "2015",
abstract = "The removal of Cs (I) ions from aqueous solution was studied using natural diatomite as adsorption materials originated from Rudovci, Serbia. The microstructure of natural diatomite has been characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) while the degree of Cs adsorption was evaluated by atomic emission spectroscopy. The cation exchange capacity (CEC) values for natural diatomite was 50 meq/100g. Depending on whether the Cs adsorption occurred in the acidic and alkaline media at a temperature of 298.15 K in acidic media Delta G(0) values was -12.674 kJ/mol, while in alkaline media Delta G(0) was 13.142 kJ/mol and a change of Delta S-0 to 42.51 J/molK in acidic media and 44.08 J/molK in alkaline medium.",
journal = "Science of Sintering",
title = "Natural Diatomite (Rudovci, Serbia) as Adsorbent for Removal Cs from Radioactive Waste Liquids",
volume = "47",
number = "3",
pages = "299-309",
doi = "10.2298/SOS1503299N"
}
Nenadović, S. S., Kljajević, L. M., Marković, S., Omerašević, M., Jovanović, U. D., Andrić, V.,& Vukanac, I.. (2015). Natural Diatomite (Rudovci, Serbia) as Adsorbent for Removal Cs from Radioactive Waste Liquids. in Science of Sintering, 47(3), 299-309.
https://doi.org/10.2298/SOS1503299N
Nenadović SS, Kljajević LM, Marković S, Omerašević M, Jovanović UD, Andrić V, Vukanac I. Natural Diatomite (Rudovci, Serbia) as Adsorbent for Removal Cs from Radioactive Waste Liquids. in Science of Sintering. 2015;47(3):299-309.
doi:10.2298/SOS1503299N .
Nenadović, Snežana S., Kljajević, Ljiljana M., Marković, Smilja, Omerašević, Mia, Jovanović, Uroš D., Andrić, Velibor, Vukanac, Ivana, "Natural Diatomite (Rudovci, Serbia) as Adsorbent for Removal Cs from Radioactive Waste Liquids" in Science of Sintering, 47, no. 3 (2015):299-309,
https://doi.org/10.2298/SOS1503299N . .
11
9
13

Hydrothermal synthesis and magnetic studies of multiferroic BiFeO3

Čebela, Maria; Prekajski, Marija D.; Pantić, Jelena R.; Omerašević, Mia; Matović, Branko

(Institute for Multidisciplinary Research, University of Belgrade, 2013)

TY  - CONF
AU  - Čebela, Maria
AU  - Prekajski, Marija D.
AU  - Pantić, Jelena R.
AU  - Omerašević, Mia
AU  - Matović, Branko
PY  - 2013
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11531
PB  - Institute for Multidisciplinary Research, University of Belgrade
C3  - 2CSCS-2013 : 2nd Conference of the Serbian Ceramic Materials : program and the book of abstracts; June 5-7, Belgrade
T1  - Hydrothermal synthesis and magnetic studies of multiferroic BiFeO3
SP  - 94
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11531
ER  - 
@conference{
author = "Čebela, Maria and Prekajski, Marija D. and Pantić, Jelena R. and Omerašević, Mia and Matović, Branko",
year = "2013",
publisher = "Institute for Multidisciplinary Research, University of Belgrade",
journal = "2CSCS-2013 : 2nd Conference of the Serbian Ceramic Materials : program and the book of abstracts; June 5-7, Belgrade",
title = "Hydrothermal synthesis and magnetic studies of multiferroic BiFeO3",
pages = "94",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11531"
}
Čebela, M., Prekajski, M. D., Pantić, J. R., Omerašević, M.,& Matović, B.. (2013). Hydrothermal synthesis and magnetic studies of multiferroic BiFeO3. in 2CSCS-2013 : 2nd Conference of the Serbian Ceramic Materials : program and the book of abstracts; June 5-7, Belgrade
Institute for Multidisciplinary Research, University of Belgrade., 94.
https://hdl.handle.net/21.15107/rcub_vinar_11531
Čebela M, Prekajski MD, Pantić JR, Omerašević M, Matović B. Hydrothermal synthesis and magnetic studies of multiferroic BiFeO3. in 2CSCS-2013 : 2nd Conference of the Serbian Ceramic Materials : program and the book of abstracts; June 5-7, Belgrade. 2013;:94.
https://hdl.handle.net/21.15107/rcub_vinar_11531 .
Čebela, Maria, Prekajski, Marija D., Pantić, Jelena R., Omerašević, Mia, Matović, Branko, "Hydrothermal synthesis and magnetic studies of multiferroic BiFeO3" in 2CSCS-2013 : 2nd Conference of the Serbian Ceramic Materials : program and the book of abstracts; June 5-7, Belgrade (2013):94,
https://hdl.handle.net/21.15107/rcub_vinar_11531 .

Hydrothermal synthesis and characterization of BiFeO3

Čebela, Maria; Prekajski, Marija D.; Pantić, Jelena R.; Omerašević, Mia; Matović, Branko

(Belgrade : Materials Research Society of Serbia, 2013)

TY  - CONF
AU  - Čebela, Maria
AU  - Prekajski, Marija D.
AU  - Pantić, Jelena R.
AU  - Omerašević, Mia
AU  - Matović, Branko
PY  - 2013
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11534
AB  - With Bi(NO3)3 ⋅ 5H2O and Fe(NO3)3 ⋅ 9H2O as starting material and 8 M KOH as mineralizer, the pure-phase BiFeO3 (BFO) powders were synthesized by hydrothermal method at 200 °C. The microstructure, morphology and chemical analysis of the powders were analyzed using Scanning Electron Microscopy (SEM) combined with X-ray microanalysis (by Energy Dispersive Spectrometer – EDS). The phase composition of obtained samples was determined by X-ray diffraction (XRD) analysis. It revealed that synthesized material crystallize in space group R3c with cell parameters a = b = 5.5780(10) Å and c = 13,863(3) Å. The particle size and distribution was determined by small – angle X-ray scattering (SAXS). The magnetic behavior of synthesized material is done by means of SQUID device
PB  - Belgrade : Materials Research Society of Serbia
C3  - The Fifteenth Annual Conference YUCOMAT 2013: Programme and the Book of Abstracts
T1  - Hydrothermal synthesis and characterization of BiFeO3
SP  - 126
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11534
ER  - 
@conference{
author = "Čebela, Maria and Prekajski, Marija D. and Pantić, Jelena R. and Omerašević, Mia and Matović, Branko",
year = "2013",
abstract = "With Bi(NO3)3 ⋅ 5H2O and Fe(NO3)3 ⋅ 9H2O as starting material and 8 M KOH as mineralizer, the pure-phase BiFeO3 (BFO) powders were synthesized by hydrothermal method at 200 °C. The microstructure, morphology and chemical analysis of the powders were analyzed using Scanning Electron Microscopy (SEM) combined with X-ray microanalysis (by Energy Dispersive Spectrometer – EDS). The phase composition of obtained samples was determined by X-ray diffraction (XRD) analysis. It revealed that synthesized material crystallize in space group R3c with cell parameters a = b = 5.5780(10) Å and c = 13,863(3) Å. The particle size and distribution was determined by small – angle X-ray scattering (SAXS). The magnetic behavior of synthesized material is done by means of SQUID device",
publisher = "Belgrade : Materials Research Society of Serbia",
journal = "The Fifteenth Annual Conference YUCOMAT 2013: Programme and the Book of Abstracts",
title = "Hydrothermal synthesis and characterization of BiFeO3",
pages = "126",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11534"
}
Čebela, M., Prekajski, M. D., Pantić, J. R., Omerašević, M.,& Matović, B.. (2013). Hydrothermal synthesis and characterization of BiFeO3. in The Fifteenth Annual Conference YUCOMAT 2013: Programme and the Book of Abstracts
Belgrade : Materials Research Society of Serbia., 126.
https://hdl.handle.net/21.15107/rcub_vinar_11534
Čebela M, Prekajski MD, Pantić JR, Omerašević M, Matović B. Hydrothermal synthesis and characterization of BiFeO3. in The Fifteenth Annual Conference YUCOMAT 2013: Programme and the Book of Abstracts. 2013;:126.
https://hdl.handle.net/21.15107/rcub_vinar_11534 .
Čebela, Maria, Prekajski, Marija D., Pantić, Jelena R., Omerašević, Mia, Matović, Branko, "Hydrothermal synthesis and characterization of BiFeO3" in The Fifteenth Annual Conference YUCOMAT 2013: Programme and the Book of Abstracts (2013):126,
https://hdl.handle.net/21.15107/rcub_vinar_11534 .

Synthesis and characterization of BiFeO3 nanopowder

Čebela, Maria; Hercigonja, Radmila; Prekajski, Marija D.; Omerašević, Mia; Matović, Branko

(Belgrade : Institute of Technical Sciences of SASA, 2013)

TY  - CONF
AU  - Čebela, Maria
AU  - Hercigonja, Radmila
AU  - Prekajski, Marija D.
AU  - Omerašević, Mia
AU  - Matović, Branko
PY  - 2013
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11539
AB  - Well-crystallized single-crystal BiFeO3 (BFO) nanopowder has been successfully synthesized by the hydrothermal and solid state synthesis methods. We analyzed the particles size using granulometric analysis and scanning electron microscopy (SEM). The phase composition of the sintered samples was determined by x-ray diffraction (XRD) analysis. It revealed that synthesized material crystallize in space group R3c with cell parameters a = b = 5.5780(10) Å and c = 13,863(3) Å. The powders behavior was characterized by TG/DTA and Heating stage microscope. The magnetic behavior of synthesized material is done by means of SQUID device and using a vibrating sample magnetometer (VSM).
PB  - Belgrade : Institute of Technical Sciences of SASA
C3  - 12th Young Researchers' Conference Materials Sciences and Engineering, December 11-13, 2013, Belgrade, Serbia
T1  - Synthesis and characterization of BiFeO3 nanopowder
SP  - 10
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11539
ER  - 
@conference{
author = "Čebela, Maria and Hercigonja, Radmila and Prekajski, Marija D. and Omerašević, Mia and Matović, Branko",
year = "2013",
abstract = "Well-crystallized single-crystal BiFeO3 (BFO) nanopowder has been successfully synthesized by the hydrothermal and solid state synthesis methods. We analyzed the particles size using granulometric analysis and scanning electron microscopy (SEM). The phase composition of the sintered samples was determined by x-ray diffraction (XRD) analysis. It revealed that synthesized material crystallize in space group R3c with cell parameters a = b = 5.5780(10) Å and c = 13,863(3) Å. The powders behavior was characterized by TG/DTA and Heating stage microscope. The magnetic behavior of synthesized material is done by means of SQUID device and using a vibrating sample magnetometer (VSM).",
publisher = "Belgrade : Institute of Technical Sciences of SASA",
journal = "12th Young Researchers' Conference Materials Sciences and Engineering, December 11-13, 2013, Belgrade, Serbia",
title = "Synthesis and characterization of BiFeO3 nanopowder",
pages = "10",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11539"
}
Čebela, M., Hercigonja, R., Prekajski, M. D., Omerašević, M.,& Matović, B.. (2013). Synthesis and characterization of BiFeO3 nanopowder. in 12th Young Researchers' Conference Materials Sciences and Engineering, December 11-13, 2013, Belgrade, Serbia
Belgrade : Institute of Technical Sciences of SASA., 10.
https://hdl.handle.net/21.15107/rcub_vinar_11539
Čebela M, Hercigonja R, Prekajski MD, Omerašević M, Matović B. Synthesis and characterization of BiFeO3 nanopowder. in 12th Young Researchers' Conference Materials Sciences and Engineering, December 11-13, 2013, Belgrade, Serbia. 2013;:10.
https://hdl.handle.net/21.15107/rcub_vinar_11539 .
Čebela, Maria, Hercigonja, Radmila, Prekajski, Marija D., Omerašević, Mia, Matović, Branko, "Synthesis and characterization of BiFeO3 nanopowder" in 12th Young Researchers' Conference Materials Sciences and Engineering, December 11-13, 2013, Belgrade, Serbia (2013):10,
https://hdl.handle.net/21.15107/rcub_vinar_11539 .