Prekajski, Marija D.

Link to this page

Authority KeyName Variants
orcid::0000-0002-5704-152X
  • Prekajski, Marija D. (30)
  • Prekajski-Đorđević, Marija D. (14)
Projects
Synthesis, processing and characterization of nanostructured materials for application in the field of energy, mechanical engineering, environmental protection and biomedicine Magmatism and geodynamics of the Balkan Peninsula from Mesozoic to present day: significance for the formation of metallic and non-metallic mineral deposits
Fundacao de Amparo a Pesquisa do Estado de Sao Paulo-FAPESP [2010/20574-3] Physics of nanostructured oxide materials and strongly correlated systems
Ministry of Education, Science and Technological Development, Republic of Serbia, Grant no. 451-03-68/2020-14/200124 (Univeristy of Niš, Faculty of Science) Simultaneous Bioremediation and Soilification of Degraded Areas to Preserve Natural Resources of Biologically Active Substances, and Development and Production of Biomaterials and Dietetic Products
Zero- to Three-Dimensional Nanostructures for Application in Electronics and Renewable Energy Sources: Synthesis, Characterization and Processing Lithium-ion batteries and fuel cells - research and development
Magnetic and radionuclide labeled nanostructured materials for medical applications Nanostructured multifunctional materials and nanocomposites
Materials of Reduced Dimensions for Efficient Light Harvesting and Energy conversion Possibilities of use of geothermal water potential in Jablanica and Pcinja districts
Development and characterization of novel biosorbent for natural and waste water treatment Laboratory for Advanced Nuclear Energy, Institute of Innovative Research, Tokyo Institute of Technology, O-okayama, Meguro-ku, Tokyo
Laboratory for Advanced Nuclear Energy, Institute of Innovative Research, Tokyo Institute of Technology, O-okayama, Meguro-ku, Tokyo [212-1-N1-29, 152-8550] Ministry of Education, Science and Technological Development of Serbia
Ministry of Education, Science and Technological Development of the Republic of Serbia Ministry of Science of the Republic of Serbia
Qatar National Research Fund [8-028-1-001] SASA project [F-134], Swiss National Science Foundation [IZ73Z0-128169], Spanish Ministry of Science and Innovation [AIB2010SE-00160], Sectorial Operational Programme Human Resource Development (SOPHRD) [POSDRU/89/1.5/S/63700]
SCOPES [IZ73Z0_1 27961], CEEPUS [CIII-RO-0038-07-1112] Slovenian Research Agency - Slovenia [P2-0091]
Slovenian-Serbian bilateral collaboration under the project No. 06-00-118/2018-09/51: Synthesis of luminescent nanopowders of type R2MoO6:REE and their structural characterization by means of electron microscopy Tokyo Institute of Technology, Research Laboratory for Nuclear Reactors, O-okayama, Meguro-ku, Tokyo

Author's Bibliography

Combustion synthesis of luminescent Eu-doped single phase Mayenite

Kumaresh, T.; Awin, Eranezhuth Wasan; Bhaskar, Lalith Kumar; Prekajski-Đorđević, Marija D.; Matović, Branko; Kumar, Ravi

(2021)

TY  - JOUR
AU  - Kumaresh, T.
AU  - Awin, Eranezhuth Wasan
AU  - Bhaskar, Lalith Kumar
AU  - Prekajski-Đorđević, Marija D.
AU  - Matović, Branko
AU  - Kumar, Ravi
PY  - 2021
UR  - https://www.sciencedirect.com/science/article/pii/S0022459621004655
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9886
AB  - Rare earth luminescent materials based on alkali metal oxides such as calcium aluminates have grabbed the attention due to their high luminescent efficiency, non-toxic and eco-friendly nature. Calcium aluminates as host materials for luminescent applications are extremely stable, suppressing the release of non-radiative energy resulting in the characteristic emission of rare earth luminescent centre. Moreover, calcium aluminates are inexpensive for their use as host material for luminescent applications. With texture and color giving the aesthetic contribution, Europium (Eu) doped single phase Mayenite may find potential applications in the design of energy efficient buildings when used as a coating material. Eu doped single phase Mayenite powders in varying concentrations (0%, 0.5%, 1%, and 1.5%) were prepared using self-propagating combustion synthesis method using metal nitrates and glycine as the fuel. The X-ray diffractograms confirmed the formation of single phase Mayenite with some of the Ca2+ ions getting replaced by Eu3+ ions. The photoluminescence emission spectra revealed 5D0 → 7F2 transition due to the crystal field effect and was characterized by the bright red luminescence. The doping of Eu resulted in a decrease of band gap from 4.8 ​eV for undoped Mayenite to 3.5 ​eV for 1.5% Eu doped Mayenite. The samples were found to exhibit excellent fluorescent properties under UV irradiation.
T2  - Journal of Solid State Chemistry
T2  - Journal of Solid State ChemistryJournal of Solid State Chemistry
T1  - Combustion synthesis of luminescent Eu-doped single phase Mayenite
VL  - 302
SP  - 122420
DO  - 10.1016/j.jssc.2021.122420
ER  - 
@article{
author = "Kumaresh, T. and Awin, Eranezhuth Wasan and Bhaskar, Lalith Kumar and Prekajski-Đorđević, Marija D. and Matović, Branko and Kumar, Ravi",
year = "2021",
abstract = "Rare earth luminescent materials based on alkali metal oxides such as calcium aluminates have grabbed the attention due to their high luminescent efficiency, non-toxic and eco-friendly nature. Calcium aluminates as host materials for luminescent applications are extremely stable, suppressing the release of non-radiative energy resulting in the characteristic emission of rare earth luminescent centre. Moreover, calcium aluminates are inexpensive for their use as host material for luminescent applications. With texture and color giving the aesthetic contribution, Europium (Eu) doped single phase Mayenite may find potential applications in the design of energy efficient buildings when used as a coating material. Eu doped single phase Mayenite powders in varying concentrations (0%, 0.5%, 1%, and 1.5%) were prepared using self-propagating combustion synthesis method using metal nitrates and glycine as the fuel. The X-ray diffractograms confirmed the formation of single phase Mayenite with some of the Ca2+ ions getting replaced by Eu3+ ions. The photoluminescence emission spectra revealed 5D0 → 7F2 transition due to the crystal field effect and was characterized by the bright red luminescence. The doping of Eu resulted in a decrease of band gap from 4.8 ​eV for undoped Mayenite to 3.5 ​eV for 1.5% Eu doped Mayenite. The samples were found to exhibit excellent fluorescent properties under UV irradiation.",
journal = "Journal of Solid State Chemistry, Journal of Solid State ChemistryJournal of Solid State Chemistry",
title = "Combustion synthesis of luminescent Eu-doped single phase Mayenite",
volume = "302",
pages = "122420",
doi = "10.1016/j.jssc.2021.122420"
}
Kumaresh, T., Awin, E. W., Bhaskar, L. K., Prekajski-Đorđević, M. D., Matović, B.,& Kumar, R.. (2021). Combustion synthesis of luminescent Eu-doped single phase Mayenite. in Journal of Solid State Chemistry, 302, 122420.
https://doi.org/10.1016/j.jssc.2021.122420
Kumaresh T, Awin EW, Bhaskar LK, Prekajski-Đorđević MD, Matović B, Kumar R. Combustion synthesis of luminescent Eu-doped single phase Mayenite. in Journal of Solid State Chemistry. 2021;302:122420.
doi:10.1016/j.jssc.2021.122420 .
Kumaresh, T., Awin, Eranezhuth Wasan, Bhaskar, Lalith Kumar, Prekajski-Đorđević, Marija D., Matović, Branko, Kumar, Ravi, "Combustion synthesis of luminescent Eu-doped single phase Mayenite" in Journal of Solid State Chemistry, 302 (2021):122420,
https://doi.org/10.1016/j.jssc.2021.122420 . .

Electrochemically synthesized Molybdenum oxides for enhancement of atmospheric pressure non-thermal pulsating corona plasma induced degradation of an organic compound

Petrović, Milica; Rančev, Saša; Prekajski-Đorđević, Marija D.; Najdanović, Slobodan M.; Velinov, Nena D.; Radović Vučić, Miljana; Bojić, Aleksandar Lj

(2021)

TY  - JOUR
AU  - Petrović, Milica
AU  - Rančev, Saša
AU  - Prekajski-Đorđević, Marija D.
AU  - Najdanović, Slobodan M.
AU  - Velinov, Nena D.
AU  - Radović Vučić, Miljana
AU  - Bojić, Aleksandar Lj
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9709
AB  - MoO2 and MoO3 were applied as catalysts for plasma degradation of organic compound. They were prepared by electrodeposition (MoO2) and electrodeposition followed by thermal treatment (MoO3), and then characterized by the cyclic voltammetry, SEM, EDX, XRD, and FTIR. The RB 19 was degraded by self-made non-thermal atmospheric pressure pulsating plasma corona reactor. Decolourization mechanism, parameters, kinetics, and influence of the catalysts were examined. Mo-oxides enhanced degradation reactions rate constants by 45% – 50%, increased decolourization rate at all the tested pHs, discharged current densities, and decreased energy consumption. Degradation followed the pseudo-first kinetics order and proceeded via plasma-generated ⋅OH radical, which attacked dye molecule; MoO2 and MoO3, excited by plasma-generated UV radiation and high-energy chemical species bombardment, enhanced decomposition of plasma-generated H2O2 into ⋅OH radicals, thus enhancing production of degradation agent. Higher percentage of mineralization was attained in the presence of catalysts, which maintained their degradation activity after 5 uses.
T2  - Chemical Engineering Science
T2  - Chemical Engineering ScienceChemical Engineering Science
T1  - Electrochemically synthesized Molybdenum oxides for enhancement of atmospheric pressure non-thermal pulsating corona plasma induced degradation of an organic compound
VL  - 230
SP  - 116209
DO  - 10.1016/j.ces.2020.116209
ER  - 
@article{
author = "Petrović, Milica and Rančev, Saša and Prekajski-Đorđević, Marija D. and Najdanović, Slobodan M. and Velinov, Nena D. and Radović Vučić, Miljana and Bojić, Aleksandar Lj",
year = "2021",
abstract = "MoO2 and MoO3 were applied as catalysts for plasma degradation of organic compound. They were prepared by electrodeposition (MoO2) and electrodeposition followed by thermal treatment (MoO3), and then characterized by the cyclic voltammetry, SEM, EDX, XRD, and FTIR. The RB 19 was degraded by self-made non-thermal atmospheric pressure pulsating plasma corona reactor. Decolourization mechanism, parameters, kinetics, and influence of the catalysts were examined. Mo-oxides enhanced degradation reactions rate constants by 45% – 50%, increased decolourization rate at all the tested pHs, discharged current densities, and decreased energy consumption. Degradation followed the pseudo-first kinetics order and proceeded via plasma-generated ⋅OH radical, which attacked dye molecule; MoO2 and MoO3, excited by plasma-generated UV radiation and high-energy chemical species bombardment, enhanced decomposition of plasma-generated H2O2 into ⋅OH radicals, thus enhancing production of degradation agent. Higher percentage of mineralization was attained in the presence of catalysts, which maintained their degradation activity after 5 uses.",
journal = "Chemical Engineering Science, Chemical Engineering ScienceChemical Engineering Science",
title = "Electrochemically synthesized Molybdenum oxides for enhancement of atmospheric pressure non-thermal pulsating corona plasma induced degradation of an organic compound",
volume = "230",
pages = "116209",
doi = "10.1016/j.ces.2020.116209"
}
Petrović, M., Rančev, S., Prekajski-Đorđević, M. D., Najdanović, S. M., Velinov, N. D., Radović Vučić, M.,& Bojić, A. L.. (2021). Electrochemically synthesized Molybdenum oxides for enhancement of atmospheric pressure non-thermal pulsating corona plasma induced degradation of an organic compound. in Chemical Engineering Science, 230, 116209.
https://doi.org/10.1016/j.ces.2020.116209
Petrović M, Rančev S, Prekajski-Đorđević MD, Najdanović SM, Velinov ND, Radović Vučić M, Bojić AL. Electrochemically synthesized Molybdenum oxides for enhancement of atmospheric pressure non-thermal pulsating corona plasma induced degradation of an organic compound. in Chemical Engineering Science. 2021;230:116209.
doi:10.1016/j.ces.2020.116209 .
Petrović, Milica, Rančev, Saša, Prekajski-Đorđević, Marija D., Najdanović, Slobodan M., Velinov, Nena D., Radović Vučić, Miljana, Bojić, Aleksandar Lj, "Electrochemically synthesized Molybdenum oxides for enhancement of atmospheric pressure non-thermal pulsating corona plasma induced degradation of an organic compound" in Chemical Engineering Science, 230 (2021):116209,
https://doi.org/10.1016/j.ces.2020.116209 . .
1
1
1

Luminescence Properties Of Eu3+ Doped Mayenite Under High Pressure

Matović, Branko; Nikolić, Marko G.; Prekajski-Đorđević, Marija D.; Dmitrović, Svetlana; Luković, Jelena M.; Maletaškić, Jelena; Jelenković, Branislav

(2020)

TY  - JOUR
AU  - Matović, Branko
AU  - Nikolić, Marko G.
AU  - Prekajski-Đorđević, Marija D.
AU  - Dmitrović, Svetlana
AU  - Luković, Jelena M.
AU  - Maletaškić, Jelena
AU  - Jelenković, Branislav
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9938
AB  - Europium doped mayenite (C12A7) powders of different concentrations (0.5, 1.0, 1.5, and 2.0 at.%) have been synthesized by a modified glycine/nitrate procedure - MGNP). Obtained samples were characterized by X-ray diffraction (XRD), field emission scanning electron microscopy (FE- SEM), and steady-state photoluminescence spectroscopy. The effect of doping concentration on photoluminescence properties of Eu3+ doped mayenite was studied and discussed. With the increasing of Eu3+ doping concentration, the red-emitting intensity exhibited behavior that increased firstly and then decreased. The optimal Eu3+ ion concentration is found to be 1.5%. High-pressure luminescence was measured in a Betsa high-pressure membrane diamond anvil cell up to 23 GPa.
T2  - Journal of Innovative Materials in Extreme Conditions
T1  - Luminescence Properties Of Eu3+ Doped Mayenite Under High Pressure
VL  - 1
IS  - 1
SP  - 12
EP  - 18
ER  - 
@article{
author = "Matović, Branko and Nikolić, Marko G. and Prekajski-Đorđević, Marija D. and Dmitrović, Svetlana and Luković, Jelena M. and Maletaškić, Jelena and Jelenković, Branislav",
year = "2020",
abstract = "Europium doped mayenite (C12A7) powders of different concentrations (0.5, 1.0, 1.5, and 2.0 at.%) have been synthesized by a modified glycine/nitrate procedure - MGNP). Obtained samples were characterized by X-ray diffraction (XRD), field emission scanning electron microscopy (FE- SEM), and steady-state photoluminescence spectroscopy. The effect of doping concentration on photoluminescence properties of Eu3+ doped mayenite was studied and discussed. With the increasing of Eu3+ doping concentration, the red-emitting intensity exhibited behavior that increased firstly and then decreased. The optimal Eu3+ ion concentration is found to be 1.5%. High-pressure luminescence was measured in a Betsa high-pressure membrane diamond anvil cell up to 23 GPa.",
journal = "Journal of Innovative Materials in Extreme Conditions",
title = "Luminescence Properties Of Eu3+ Doped Mayenite Under High Pressure",
volume = "1",
number = "1",
pages = "12-18"
}
Matović, B., Nikolić, M. G., Prekajski-Đorđević, M. D., Dmitrović, S., Luković, J. M., Maletaškić, J.,& Jelenković, B.. (2020). Luminescence Properties Of Eu3+ Doped Mayenite Under High Pressure. in Journal of Innovative Materials in Extreme Conditions, 1(1), 12-18.
Matović B, Nikolić MG, Prekajski-Đorđević MD, Dmitrović S, Luković JM, Maletaškić J, Jelenković B. Luminescence Properties Of Eu3+ Doped Mayenite Under High Pressure. in Journal of Innovative Materials in Extreme Conditions. 2020;1(1):12-18..
Matović, Branko, Nikolić, Marko G., Prekajski-Đorđević, Marija D., Dmitrović, Svetlana, Luković, Jelena M., Maletaškić, Jelena, Jelenković, Branislav, "Luminescence Properties Of Eu3+ Doped Mayenite Under High Pressure" in Journal of Innovative Materials in Extreme Conditions, 1, no. 1 (2020):12-18.

Metal-Like Thermal Conductivity Possessed By Atmosphere Assisted Synthesis Of Spark Plasma Sintered Mayenite (Ca12Al14O33): Supporting Information

Johnson, Teslin; Awin, Eranezhuth Wasan; Prekajski-Đorđević, Marija D.; Matović, Branko; Kumar, Ravi

(2020)

TY  - DATA
AU  - Johnson, Teslin
AU  - Awin, Eranezhuth Wasan
AU  - Prekajski-Đorđević, Marija D.
AU  - Matović, Branko
AU  - Kumar, Ravi
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9937
AB  - Supporting information of the article Metal-Like Thermal Conductivity Possessed By Atmosphere Assisted Synthesis Of Spark Plasma Sintered Mayenite (Ca12Al14O33).
T2  - Journal of Innovative Materials in Extreme Conditions
T1  - Metal-Like Thermal Conductivity Possessed By Atmosphere Assisted Synthesis Of Spark Plasma Sintered Mayenite (Ca12Al14O33): Supporting Information
VL  - 1
IS  - 1
ER  - 
@misc{
author = "Johnson, Teslin and Awin, Eranezhuth Wasan and Prekajski-Đorđević, Marija D. and Matović, Branko and Kumar, Ravi",
year = "2020",
abstract = "Supporting information of the article Metal-Like Thermal Conductivity Possessed By Atmosphere Assisted Synthesis Of Spark Plasma Sintered Mayenite (Ca12Al14O33).",
journal = "Journal of Innovative Materials in Extreme Conditions",
title = "Metal-Like Thermal Conductivity Possessed By Atmosphere Assisted Synthesis Of Spark Plasma Sintered Mayenite (Ca12Al14O33): Supporting Information",
volume = "1",
number = "1"
}
Johnson, T., Awin, E. W., Prekajski-Đorđević, M. D., Matović, B.,& Kumar, R.. (2020). Metal-Like Thermal Conductivity Possessed By Atmosphere Assisted Synthesis Of Spark Plasma Sintered Mayenite (Ca12Al14O33): Supporting Information. in Journal of Innovative Materials in Extreme Conditions, 1(1).
Johnson T, Awin EW, Prekajski-Đorđević MD, Matović B, Kumar R. Metal-Like Thermal Conductivity Possessed By Atmosphere Assisted Synthesis Of Spark Plasma Sintered Mayenite (Ca12Al14O33): Supporting Information. in Journal of Innovative Materials in Extreme Conditions. 2020;1(1)..
Johnson, Teslin, Awin, Eranezhuth Wasan, Prekajski-Đorđević, Marija D., Matović, Branko, Kumar, Ravi, "Metal-Like Thermal Conductivity Possessed By Atmosphere Assisted Synthesis Of Spark Plasma Sintered Mayenite (Ca12Al14O33): Supporting Information" in Journal of Innovative Materials in Extreme Conditions, 1, no. 1 (2020).

Metal-Like Thermal Conductivity Possessed By Atmosphere Assisted Synthesis Of Spark Plasma Sintered Mayenite (Ca12Al14O33)

Johnson, Teslin; Awin, Eranezhuth Wasan; Prekajski-Đorđević, Marija D.; Matović, Branko; Kumar, Ravi

(2020)

TY  - JOUR
AU  - Johnson, Teslin
AU  - Awin, Eranezhuth Wasan
AU  - Prekajski-Đorđević, Marija D.
AU  - Matović, Branko
AU  - Kumar, Ravi
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9936
AB  - Mayenite (Ca12Al14O33) samples have been synthesized in ambient air, argon, and nitrogen atmospheres to vary the defect chemistry and to investigate its role in thermal conductivity. Highly dense sintered pellets (SEM) were obtained through spark plasma sintering and the X-ray diffractograms revealed predominantly mayenite phase with the presence of a minor amount of secondary phases. Thermal conductivity was measured for the sintered samples and it was observed that mayenite synthesized in nitrogen atmosphere exhibited a colossal value of 579 Wm-1K-1 at room temperature close to that of cubic-BN, comparable with that of metals.
T2  - Journal of Innovative Materials in Extreme Conditions
T1  - Metal-Like Thermal Conductivity Possessed By Atmosphere Assisted Synthesis Of Spark Plasma Sintered Mayenite (Ca12Al14O33)
VL  - 1
IS  - 1
SP  - 7
EP  - 11
ER  - 
@article{
author = "Johnson, Teslin and Awin, Eranezhuth Wasan and Prekajski-Đorđević, Marija D. and Matović, Branko and Kumar, Ravi",
year = "2020",
abstract = "Mayenite (Ca12Al14O33) samples have been synthesized in ambient air, argon, and nitrogen atmospheres to vary the defect chemistry and to investigate its role in thermal conductivity. Highly dense sintered pellets (SEM) were obtained through spark plasma sintering and the X-ray diffractograms revealed predominantly mayenite phase with the presence of a minor amount of secondary phases. Thermal conductivity was measured for the sintered samples and it was observed that mayenite synthesized in nitrogen atmosphere exhibited a colossal value of 579 Wm-1K-1 at room temperature close to that of cubic-BN, comparable with that of metals.",
journal = "Journal of Innovative Materials in Extreme Conditions",
title = "Metal-Like Thermal Conductivity Possessed By Atmosphere Assisted Synthesis Of Spark Plasma Sintered Mayenite (Ca12Al14O33)",
volume = "1",
number = "1",
pages = "7-11"
}
Johnson, T., Awin, E. W., Prekajski-Đorđević, M. D., Matović, B.,& Kumar, R.. (2020). Metal-Like Thermal Conductivity Possessed By Atmosphere Assisted Synthesis Of Spark Plasma Sintered Mayenite (Ca12Al14O33). in Journal of Innovative Materials in Extreme Conditions, 1(1), 7-11.
Johnson T, Awin EW, Prekajski-Đorđević MD, Matović B, Kumar R. Metal-Like Thermal Conductivity Possessed By Atmosphere Assisted Synthesis Of Spark Plasma Sintered Mayenite (Ca12Al14O33). in Journal of Innovative Materials in Extreme Conditions. 2020;1(1):7-11..
Johnson, Teslin, Awin, Eranezhuth Wasan, Prekajski-Đorđević, Marija D., Matović, Branko, Kumar, Ravi, "Metal-Like Thermal Conductivity Possessed By Atmosphere Assisted Synthesis Of Spark Plasma Sintered Mayenite (Ca12Al14O33)" in Journal of Innovative Materials in Extreme Conditions, 1, no. 1 (2020):7-11.

Luminescence properties of Eu3+ activated Y2MoO6 powders calcined at different temperatures

Stanković, Nadežda; Nikolić, Marko; Jelenković, Branislav; Daneu, Nina; Maletaškić, Jelena; Prekajski-Đorđević, Marija D.; Matović, Branko

(2020)

TY  - JOUR
AU  - Stanković, Nadežda
AU  - Nikolić, Marko
AU  - Jelenković, Branislav
AU  - Daneu, Nina
AU  - Maletaškić, Jelena
AU  - Prekajski-Đorđević, Marija D.
AU  - Matović, Branko
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9009
AB  - In the last decade, an immense progress has been made in white LEDs, mainly due to the development of red-emitting phosphors. In this paper, we report on the synthesis of Eu3+ activated Y2MoO6 by a self-initiated and self-sustained method. The obtained powder was calcined at various temperatures in the 600–1400 °C range and examined by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and photoluminescence spectroscopy (PL). The results revealed that all powders are single phase Y2MoO6:Eu3+, with particle size in the nanorange at lower treatment temperatures (600 and 800 °C) and in the microrange at higher calcination temperatures (1000–1400 °C). The obtained powders are promising materials for white light-emitting diodes as they can efficiently absorb energy in 324–425 nm region (near-UV to blue light region) and emit at 611 nm in the red region of the spectrum, while exhibiting high thermal and chemical stability.
T2  - Processing and Application of Ceramics
T1  - Luminescence properties of Eu3+ activated Y2MoO6 powders calcined at different temperatures
VL  - 14
IS  - 1
SP  - 71
EP  - 76
DO  - 10.2298/PAC2001071S
ER  - 
@article{
author = "Stanković, Nadežda and Nikolić, Marko and Jelenković, Branislav and Daneu, Nina and Maletaškić, Jelena and Prekajski-Đorđević, Marija D. and Matović, Branko",
year = "2020",
abstract = "In the last decade, an immense progress has been made in white LEDs, mainly due to the development of red-emitting phosphors. In this paper, we report on the synthesis of Eu3+ activated Y2MoO6 by a self-initiated and self-sustained method. The obtained powder was calcined at various temperatures in the 600–1400 °C range and examined by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and photoluminescence spectroscopy (PL). The results revealed that all powders are single phase Y2MoO6:Eu3+, with particle size in the nanorange at lower treatment temperatures (600 and 800 °C) and in the microrange at higher calcination temperatures (1000–1400 °C). The obtained powders are promising materials for white light-emitting diodes as they can efficiently absorb energy in 324–425 nm region (near-UV to blue light region) and emit at 611 nm in the red region of the spectrum, while exhibiting high thermal and chemical stability.",
journal = "Processing and Application of Ceramics",
title = "Luminescence properties of Eu3+ activated Y2MoO6 powders calcined at different temperatures",
volume = "14",
number = "1",
pages = "71-76",
doi = "10.2298/PAC2001071S"
}
Stanković, N., Nikolić, M., Jelenković, B., Daneu, N., Maletaškić, J., Prekajski-Đorđević, M. D.,& Matović, B.. (2020). Luminescence properties of Eu3+ activated Y2MoO6 powders calcined at different temperatures. in Processing and Application of Ceramics, 14(1), 71-76.
https://doi.org/10.2298/PAC2001071S
Stanković N, Nikolić M, Jelenković B, Daneu N, Maletaškić J, Prekajski-Đorđević MD, Matović B. Luminescence properties of Eu3+ activated Y2MoO6 powders calcined at different temperatures. in Processing and Application of Ceramics. 2020;14(1):71-76.
doi:10.2298/PAC2001071S .
Stanković, Nadežda, Nikolić, Marko, Jelenković, Branislav, Daneu, Nina, Maletaškić, Jelena, Prekajski-Đorđević, Marija D., Matović, Branko, "Luminescence properties of Eu3+ activated Y2MoO6 powders calcined at different temperatures" in Processing and Application of Ceramics, 14, no. 1 (2020):71-76,
https://doi.org/10.2298/PAC2001071S . .
1
1
1

Electronic structure of surface complexes between CeO2 and benzene derivatives: A comparative experimental and DFT study

Prekajski-Đorđević, Marija D.; Vukoje, Ivana D.; Lazić, Vesna M.; Đorđević, Vesna R.; Sredojević, Dušan; Dostanić, Jasmina; Lončarević, Davor; Ahrenkiel, Scott Phillip; Belić, Milivoj R.; Nedeljković, Jovan

(2019)

TY  - JOUR
AU  - Prekajski-Đorđević, Marija D.
AU  - Vukoje, Ivana D.
AU  - Lazić, Vesna M.
AU  - Đorđević, Vesna R.
AU  - Sredojević, Dušan
AU  - Dostanić, Jasmina
AU  - Lončarević, Davor
AU  - Ahrenkiel, Scott Phillip
AU  - Belić, Milivoj R.
AU  - Nedeljković, Jovan
PY  - 2019
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8387
AB  - Surface modification of CeO2 nano-powder, synthesized by a self-propagating room temperature method with salicylate-type ligands (salicylic acid and 5-aminosalicylic acid) as well as catecholate-type ligands (catechol, 3,4-dihydroxybenzoic acid, caffeic acid and 2,3-dihydroxy naphthalene), induces the appearance of absorption in the visible spectral region due to the interfacial charge transfer (ICT) complex formation. Thorough characterization involving transmission electron microscopy, XRD analysis, and nitrogen adsorption-desorption isotherms, revealed that loosely agglomerated CeO2 particles of the size ranging from 2 to 4 nm have cubic fluorite structure and specific surface area of 140 m2/g. The attachment of salicylate- and catecholate-type of ligands to the surface of CeO2 powders leads to the formation of colored powders with tunable absorption in the visible spectral region. The density functional theory calculations with properly design model systems were performed to estimate the alignment of energy levels of various inorganic/organic hybrids. A reasonably good agreement between calculated values and experimental data was found. © 2019
T2  - Materials Chemistry and Physics
T1  - Electronic structure of surface complexes between CeO2 and benzene derivatives: A comparative experimental and DFT study
VL  - 236
SP  - 121816
DO  - 10.1016/j.matchemphys.2019.121816
ER  - 
@article{
author = "Prekajski-Đorđević, Marija D. and Vukoje, Ivana D. and Lazić, Vesna M. and Đorđević, Vesna R. and Sredojević, Dušan and Dostanić, Jasmina and Lončarević, Davor and Ahrenkiel, Scott Phillip and Belić, Milivoj R. and Nedeljković, Jovan",
year = "2019",
abstract = "Surface modification of CeO2 nano-powder, synthesized by a self-propagating room temperature method with salicylate-type ligands (salicylic acid and 5-aminosalicylic acid) as well as catecholate-type ligands (catechol, 3,4-dihydroxybenzoic acid, caffeic acid and 2,3-dihydroxy naphthalene), induces the appearance of absorption in the visible spectral region due to the interfacial charge transfer (ICT) complex formation. Thorough characterization involving transmission electron microscopy, XRD analysis, and nitrogen adsorption-desorption isotherms, revealed that loosely agglomerated CeO2 particles of the size ranging from 2 to 4 nm have cubic fluorite structure and specific surface area of 140 m2/g. The attachment of salicylate- and catecholate-type of ligands to the surface of CeO2 powders leads to the formation of colored powders with tunable absorption in the visible spectral region. The density functional theory calculations with properly design model systems were performed to estimate the alignment of energy levels of various inorganic/organic hybrids. A reasonably good agreement between calculated values and experimental data was found. © 2019",
journal = "Materials Chemistry and Physics",
title = "Electronic structure of surface complexes between CeO2 and benzene derivatives: A comparative experimental and DFT study",
volume = "236",
pages = "121816",
doi = "10.1016/j.matchemphys.2019.121816"
}
Prekajski-Đorđević, M. D., Vukoje, I. D., Lazić, V. M., Đorđević, V. R., Sredojević, D., Dostanić, J., Lončarević, D., Ahrenkiel, S. P., Belić, M. R.,& Nedeljković, J.. (2019). Electronic structure of surface complexes between CeO2 and benzene derivatives: A comparative experimental and DFT study. in Materials Chemistry and Physics, 236, 121816.
https://doi.org/10.1016/j.matchemphys.2019.121816
Prekajski-Đorđević MD, Vukoje ID, Lazić VM, Đorđević VR, Sredojević D, Dostanić J, Lončarević D, Ahrenkiel SP, Belić MR, Nedeljković J. Electronic structure of surface complexes between CeO2 and benzene derivatives: A comparative experimental and DFT study. in Materials Chemistry and Physics. 2019;236:121816.
doi:10.1016/j.matchemphys.2019.121816 .
Prekajski-Đorđević, Marija D., Vukoje, Ivana D., Lazić, Vesna M., Đorđević, Vesna R., Sredojević, Dušan, Dostanić, Jasmina, Lončarević, Davor, Ahrenkiel, Scott Phillip, Belić, Milivoj R., Nedeljković, Jovan, "Electronic structure of surface complexes between CeO2 and benzene derivatives: A comparative experimental and DFT study" in Materials Chemistry and Physics, 236 (2019):121816,
https://doi.org/10.1016/j.matchemphys.2019.121816 . .
3
1
3

Combined magnetic and structural characterization of hidrothermal bismuth ferrite (BiFeO3) nanoparticles

Maletaškić, Jelena; Čebela, Maria; Prekajski-Đorđević, Marija D.; Kozlenko, Denis; Kichanov, Sergey; Mitrić, Miodrag; Matović, Branko

(2019)

TY  - JOUR
AU  - Maletaškić, Jelena
AU  - Čebela, Maria
AU  - Prekajski-Đorđević, Marija D.
AU  - Kozlenko, Denis
AU  - Kichanov, Sergey
AU  - Mitrić, Miodrag
AU  - Matović, Branko
PY  - 2019
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8429
AB  - Bismuth ferrite (BiFeO3) was synthesized by hydrothermal method. The crystal and magnetic structures of BiFeO3 have been studied by means of X-ray diffraction and neutron powder diffraction at ambient temperature. Microstructure was analysed by scanning electron microscopy. Quantitative phase analysis by the Rietveld method was conducted and crystallite sizes of 27 nm were determined from the XRD line broadening. The magnetic structure of BiFeO3 is described by the G-type antiferromagnetic order with magnetic peak located at 4.6 Å and a noticeable magnetic contribution to a reflection located at 2.4 Å in the diffraction pattern. The values of the ordered magnetic moment of Fe ions μFe=3.8(1) μB, obtained at ambient conditions, are consistent with those determined earlier. The magnetic moments in the crystal plane z = const are arranged in parallel, changing the direction from [100] to [ 110 ] when moving from one to the other z = const plane. © 2018 Authors. Published by the International Institute for the Science of Sintering.
T2  - Science of Sintering
T1  - Combined magnetic and structural characterization of hidrothermal bismuth ferrite (BiFeO3) nanoparticles
VL  - 51
IS  - 1
SP  - 71
EP  - 79
DO  - 10.2298/SOS1901071M
ER  - 
@article{
author = "Maletaškić, Jelena and Čebela, Maria and Prekajski-Đorđević, Marija D. and Kozlenko, Denis and Kichanov, Sergey and Mitrić, Miodrag and Matović, Branko",
year = "2019",
abstract = "Bismuth ferrite (BiFeO3) was synthesized by hydrothermal method. The crystal and magnetic structures of BiFeO3 have been studied by means of X-ray diffraction and neutron powder diffraction at ambient temperature. Microstructure was analysed by scanning electron microscopy. Quantitative phase analysis by the Rietveld method was conducted and crystallite sizes of 27 nm were determined from the XRD line broadening. The magnetic structure of BiFeO3 is described by the G-type antiferromagnetic order with magnetic peak located at 4.6 Å and a noticeable magnetic contribution to a reflection located at 2.4 Å in the diffraction pattern. The values of the ordered magnetic moment of Fe ions μFe=3.8(1) μB, obtained at ambient conditions, are consistent with those determined earlier. The magnetic moments in the crystal plane z = const are arranged in parallel, changing the direction from [100] to [ 110 ] when moving from one to the other z = const plane. © 2018 Authors. Published by the International Institute for the Science of Sintering.",
journal = "Science of Sintering",
title = "Combined magnetic and structural characterization of hidrothermal bismuth ferrite (BiFeO3) nanoparticles",
volume = "51",
number = "1",
pages = "71-79",
doi = "10.2298/SOS1901071M"
}
Maletaškić, J., Čebela, M., Prekajski-Đorđević, M. D., Kozlenko, D., Kichanov, S., Mitrić, M.,& Matović, B.. (2019). Combined magnetic and structural characterization of hidrothermal bismuth ferrite (BiFeO3) nanoparticles. in Science of Sintering, 51(1), 71-79.
https://doi.org/10.2298/SOS1901071M
Maletaškić J, Čebela M, Prekajski-Đorđević MD, Kozlenko D, Kichanov S, Mitrić M, Matović B. Combined magnetic and structural characterization of hidrothermal bismuth ferrite (BiFeO3) nanoparticles. in Science of Sintering. 2019;51(1):71-79.
doi:10.2298/SOS1901071M .
Maletaškić, Jelena, Čebela, Maria, Prekajski-Đorđević, Marija D., Kozlenko, Denis, Kichanov, Sergey, Mitrić, Miodrag, Matović, Branko, "Combined magnetic and structural characterization of hidrothermal bismuth ferrite (BiFeO3) nanoparticles" in Science of Sintering, 51, no. 1 (2019):71-79,
https://doi.org/10.2298/SOS1901071M . .
1
2

Direct Formation of Burkeite in the Geothermal Waters at Vranjska Banja, Serbia

Todorović, Bratislav Ž.; Stojiljković, Dragan T.; Pantić-Petrović, Tanja; Matović, Branko; Prekajski-Đorđević, Marija D.; Petrović, Sanja M.; Stojiljković, Milena S.; Stevanović, Miloš M.

(2019)

TY  - JOUR
AU  - Todorović, Bratislav Ž.
AU  - Stojiljković, Dragan T.
AU  - Pantić-Petrović, Tanja
AU  - Matović, Branko
AU  - Prekajski-Đorđević, Marija D.
AU  - Petrović, Sanja M.
AU  - Stojiljković, Milena S.
AU  - Stevanović, Miloš M.
PY  - 2019
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8493
AB  - There are no available data about direct burkeite formation on the geothermal waters pipelines in Europe. Data about accompanying minerals of burkeite are also scarce. This mineral has been found in the scale on pipelines of VG-2 and VG-3 boreholes at Vranjska Banja, Serbia. Geothermal waters from these boreholes have temperatures in the range of 103 and 105 °C which classifies them to the warmest waters in the continental Europe. Based on physicochemical and geochemical data, VG-2 and VG-3 geothermal waters can be classified as Na–Alk–SO4Cl type of waters. According to their temperatures, total hardness and pH values, these waters belong to hyperthermal, very soft and moderately alkaline. Calculated LSI (0.4 and 1.7) and RSI (6.5 and 4.8) values indicate their scale formation tendency. Results of the spectrometric scale examination from the pipe deposits provide a clear qualitative and quantitative burkeite characterization with its accompanying minerals. FTIR analysis points to the presence of carbonate (1766, 1458, 877 and 705 cm−1) and sulfate bands (1139, 1116 and 617 cm−1). Apart from the qualitative analysis, XRD also shows the burkeite mass part in the scale. VG-2 geothermal water contains about 50% of burkeite, which is associated with trona mineral (40%) and smaller amount of halite of about 10%. Burkeite is a dominant phase (> 60%) in VG-3 water, with the presence of a significant halite quantity (> 35%) and a minor calcite quantity (2%). © 2019, International Association for Mathematical Geosciences.
T2  - Natural Resources Research
T1  - Direct Formation of Burkeite in the Geothermal Waters at Vranjska Banja, Serbia
VL  - 28
IS  - 4
SP  - 1259
EP  - 1267
DO  - 10.1007/s11053-019-09455-y
ER  - 
@article{
author = "Todorović, Bratislav Ž. and Stojiljković, Dragan T. and Pantić-Petrović, Tanja and Matović, Branko and Prekajski-Đorđević, Marija D. and Petrović, Sanja M. and Stojiljković, Milena S. and Stevanović, Miloš M.",
year = "2019",
abstract = "There are no available data about direct burkeite formation on the geothermal waters pipelines in Europe. Data about accompanying minerals of burkeite are also scarce. This mineral has been found in the scale on pipelines of VG-2 and VG-3 boreholes at Vranjska Banja, Serbia. Geothermal waters from these boreholes have temperatures in the range of 103 and 105 °C which classifies them to the warmest waters in the continental Europe. Based on physicochemical and geochemical data, VG-2 and VG-3 geothermal waters can be classified as Na–Alk–SO4Cl type of waters. According to their temperatures, total hardness and pH values, these waters belong to hyperthermal, very soft and moderately alkaline. Calculated LSI (0.4 and 1.7) and RSI (6.5 and 4.8) values indicate their scale formation tendency. Results of the spectrometric scale examination from the pipe deposits provide a clear qualitative and quantitative burkeite characterization with its accompanying minerals. FTIR analysis points to the presence of carbonate (1766, 1458, 877 and 705 cm−1) and sulfate bands (1139, 1116 and 617 cm−1). Apart from the qualitative analysis, XRD also shows the burkeite mass part in the scale. VG-2 geothermal water contains about 50% of burkeite, which is associated with trona mineral (40%) and smaller amount of halite of about 10%. Burkeite is a dominant phase (> 60%) in VG-3 water, with the presence of a significant halite quantity (> 35%) and a minor calcite quantity (2%). © 2019, International Association for Mathematical Geosciences.",
journal = "Natural Resources Research",
title = "Direct Formation of Burkeite in the Geothermal Waters at Vranjska Banja, Serbia",
volume = "28",
number = "4",
pages = "1259-1267",
doi = "10.1007/s11053-019-09455-y"
}
Todorović, B. Ž., Stojiljković, D. T., Pantić-Petrović, T., Matović, B., Prekajski-Đorđević, M. D., Petrović, S. M., Stojiljković, M. S.,& Stevanović, M. M.. (2019). Direct Formation of Burkeite in the Geothermal Waters at Vranjska Banja, Serbia. in Natural Resources Research, 28(4), 1259-1267.
https://doi.org/10.1007/s11053-019-09455-y
Todorović BŽ, Stojiljković DT, Pantić-Petrović T, Matović B, Prekajski-Đorđević MD, Petrović SM, Stojiljković MS, Stevanović MM. Direct Formation of Burkeite in the Geothermal Waters at Vranjska Banja, Serbia. in Natural Resources Research. 2019;28(4):1259-1267.
doi:10.1007/s11053-019-09455-y .
Todorović, Bratislav Ž., Stojiljković, Dragan T., Pantić-Petrović, Tanja, Matović, Branko, Prekajski-Đorđević, Marija D., Petrović, Sanja M., Stojiljković, Milena S., Stevanović, Miloš M., "Direct Formation of Burkeite in the Geothermal Waters at Vranjska Banja, Serbia" in Natural Resources Research, 28, no. 4 (2019):1259-1267,
https://doi.org/10.1007/s11053-019-09455-y . .
1
1
1

Spider silk as a template for obtaining magnesium oxide and magnesium hydroxide fibers

Dmitrović, Svetlana; Prekajski-Đorđević, Marija D.; Jokić, Bojan M.; Branković, Goran O.; Zarubica, Aleksandra R.; Žikić, Vladimir; Matović, Branko

(2018)

TY  - JOUR
AU  - Dmitrović, Svetlana
AU  - Prekajski-Đorđević, Marija D.
AU  - Jokić, Bojan M.
AU  - Branković, Goran O.
AU  - Zarubica, Aleksandra R.
AU  - Žikić, Vladimir
AU  - Matović, Branko
PY  - 2018
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/7616
AB  - Spider silk fibers, collected from Pholcus Phalangioides spider were used as a template for obtaining magnesium oxide (MgO, periclase) as well as magnesium hydroxide (Mg(OH)2, brucite) fibers. Magnesium oxide fibers were obtained in a simple manner by heat induced decomposition of magnesium salt (MgCl2) in the presence of the spider silk fibers, while magnesium hydroxidefibers were synthesized by hydration of MgO fibers at 50 °C, 70°C and 90 °C, for 48 and 96 h. According to Scanning electron microscopy (SEM), dimensions of spider silk fibers determined the dimension of synthesized MgO fibers, while for Mg(OH)2 fibers, the average diameter was increased with prolonging the hydration period. The surface of Mg(OH)2 fibers was noticed to be covered with brucite in a form of plates. X-ray diffraction (XRD) analysis showed that MgO fibers were single-phased (the pure magnesium oxide fibers were obtained), while Mg(OH)2 fibers were two- or single-phased brucite depending on incubation period, and/or incubation temperature.
AB  - Vlakna paukove mreže sakupljena od Pholcus phalangioides pauka korišćena su kao matrica za dobijanje vlakana magnezijum oksida (MgO, periklas) i magnezijum-hidroksida (Mg(OH)2, brucit). Vlakna magnezijum oksida jednostavno su dobijena termičkim razlaganjem soli magnezijuma (MgCl2) u prisustvu vlakana paukove mreže, dok su vlakna magnezijum hidroksida sintetisana hidratacijom MgO vlakana na temperaturama: 50, 70 i 90 °C u trajanju od 48 i 96 h. Na osnovu
rezultata skenirajuće elektronske mikroskopije (SEM), veličina sintetisanih MgO vlakana bila je određena dimenzijama vlakana pauka, dok je za Mg(OH)2 vlakna prosečan dijametar rastao sa produženjem perioda hidratacije. Na površini Mg(OH)2 vlakana uočeni su tabličasti kristali brucita. Difrakcija X zraka (XRD) pokazala je da su vlakna periklasa jednofazna (dobijen je čist magnezijum-oksid), dok su brucitna vlakna bila dvofazna ili jednofazna, u zavisnosti od inkubacionog perioda i/ili teperature na kojoj je vršena inkubacija.
T2  - Hemijska industrija
T1  - Spider silk as a template for obtaining magnesium oxide and magnesium hydroxide fibers
T1  - Sinteza vlakana magnezijum-oksida i magnezijum-hidroksida korišćenjem paukove mreže kao matrice
VL  - 72
IS  - 1
SP  - 23
EP  - 28
DO  - 10.2298/HEMIND170404018D
ER  - 
@article{
author = "Dmitrović, Svetlana and Prekajski-Đorđević, Marija D. and Jokić, Bojan M. and Branković, Goran O. and Zarubica, Aleksandra R. and Žikić, Vladimir and Matović, Branko",
year = "2018",
abstract = "Spider silk fibers, collected from Pholcus Phalangioides spider were used as a template for obtaining magnesium oxide (MgO, periclase) as well as magnesium hydroxide (Mg(OH)2, brucite) fibers. Magnesium oxide fibers were obtained in a simple manner by heat induced decomposition of magnesium salt (MgCl2) in the presence of the spider silk fibers, while magnesium hydroxidefibers were synthesized by hydration of MgO fibers at 50 °C, 70°C and 90 °C, for 48 and 96 h. According to Scanning electron microscopy (SEM), dimensions of spider silk fibers determined the dimension of synthesized MgO fibers, while for Mg(OH)2 fibers, the average diameter was increased with prolonging the hydration period. The surface of Mg(OH)2 fibers was noticed to be covered with brucite in a form of plates. X-ray diffraction (XRD) analysis showed that MgO fibers were single-phased (the pure magnesium oxide fibers were obtained), while Mg(OH)2 fibers were two- or single-phased brucite depending on incubation period, and/or incubation temperature., Vlakna paukove mreže sakupljena od Pholcus phalangioides pauka korišćena su kao matrica za dobijanje vlakana magnezijum oksida (MgO, periklas) i magnezijum-hidroksida (Mg(OH)2, brucit). Vlakna magnezijum oksida jednostavno su dobijena termičkim razlaganjem soli magnezijuma (MgCl2) u prisustvu vlakana paukove mreže, dok su vlakna magnezijum hidroksida sintetisana hidratacijom MgO vlakana na temperaturama: 50, 70 i 90 °C u trajanju od 48 i 96 h. Na osnovu
rezultata skenirajuće elektronske mikroskopije (SEM), veličina sintetisanih MgO vlakana bila je određena dimenzijama vlakana pauka, dok je za Mg(OH)2 vlakna prosečan dijametar rastao sa produženjem perioda hidratacije. Na površini Mg(OH)2 vlakana uočeni su tabličasti kristali brucita. Difrakcija X zraka (XRD) pokazala je da su vlakna periklasa jednofazna (dobijen je čist magnezijum-oksid), dok su brucitna vlakna bila dvofazna ili jednofazna, u zavisnosti od inkubacionog perioda i/ili teperature na kojoj je vršena inkubacija.",
journal = "Hemijska industrija",
title = "Spider silk as a template for obtaining magnesium oxide and magnesium hydroxide fibers, Sinteza vlakana magnezijum-oksida i magnezijum-hidroksida korišćenjem paukove mreže kao matrice",
volume = "72",
number = "1",
pages = "23-28",
doi = "10.2298/HEMIND170404018D"
}
Dmitrović, S., Prekajski-Đorđević, M. D., Jokić, B. M., Branković, G. O., Zarubica, A. R., Žikić, V.,& Matović, B.. (2018). Spider silk as a template for obtaining magnesium oxide and magnesium hydroxide fibers. in Hemijska industrija, 72(1), 23-28.
https://doi.org/10.2298/HEMIND170404018D
Dmitrović S, Prekajski-Đorđević MD, Jokić BM, Branković GO, Zarubica AR, Žikić V, Matović B. Spider silk as a template for obtaining magnesium oxide and magnesium hydroxide fibers. in Hemijska industrija. 2018;72(1):23-28.
doi:10.2298/HEMIND170404018D .
Dmitrović, Svetlana, Prekajski-Đorđević, Marija D., Jokić, Bojan M., Branković, Goran O., Zarubica, Aleksandra R., Žikić, Vladimir, Matović, Branko, "Spider silk as a template for obtaining magnesium oxide and magnesium hydroxide fibers" in Hemijska industrija, 72, no. 1 (2018):23-28,
https://doi.org/10.2298/HEMIND170404018D . .

Improving stability of cerium oxide nanoparticles by microbial polysaccharides coating

Milenković, Ivana; Radotić, Ksenija; Matović, Branko; Prekajski, Marija D.; Živković, Ljiljana; Jakovljević, Dragica; Gojgić-Cvijović, Gordana; Beškoski, Vladimir P.

(2018)

TY  - JOUR
AU  - Milenković, Ivana
AU  - Radotić, Ksenija
AU  - Matović, Branko
AU  - Prekajski, Marija D.
AU  - Živković, Ljiljana
AU  - Jakovljević, Dragica
AU  - Gojgić-Cvijović, Gordana
AU  - Beškoski, Vladimir P.
PY  - 2018
UR  - http://www.doiserbia.nb.rs/Article.aspx?ID=0352-51391800031M
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/7764
AB  - Cerium oxide (CeO2) nanoparticles (CONPs) are interesting biomaterials with various applications in biomedicine, cosmetics and the pharmaceutical industry, but with limited practical application because of their low stability in aqueous media. The aim of this study was to obtain CONPs with increased stability by coating the particles. Microbial exopolysaccharides (levan, pullulan) and glucose were used to prepare CONPs under different synthesis conditions. Coating was attempted by adding the carbohydrates during (direct coating) or after (subsequent coating) the synthesis of CONPs. The obtained nanoparticles were characterized by X-Ray diffraction analysis, Fourier transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The suspension stability of the uncoated and coated CONPs in aqueous media was evaluated by measuring the hydrodynamic size, zeta potential and turbidity. The FT-IR spectra revealed the differences between coated CONPs and showed the success of subsequent coating with carbohydrates. Coating with carbohydrates improved the stability the CONP suspension by decreasing the size of aggregated particles. The suspensions of levan- and glucose-coated CONPs had the best stability. In this study, CONPs were prepared using non-toxic materials, which were completely environmentally friendly. The obtained results open new horizons for CONP synthesis, improving their biological applications.
T2  - Journal of the Serbian Chemical Society
T1  - Improving stability of cerium oxide nanoparticles by microbial polysaccharides coating
VL  - 83
IS  - 6
SP  - 745
EP  - 757
DO  - 10.2298/JSC171205031M
ER  - 
@article{
author = "Milenković, Ivana and Radotić, Ksenija and Matović, Branko and Prekajski, Marija D. and Živković, Ljiljana and Jakovljević, Dragica and Gojgić-Cvijović, Gordana and Beškoski, Vladimir P.",
year = "2018",
abstract = "Cerium oxide (CeO2) nanoparticles (CONPs) are interesting biomaterials with various applications in biomedicine, cosmetics and the pharmaceutical industry, but with limited practical application because of their low stability in aqueous media. The aim of this study was to obtain CONPs with increased stability by coating the particles. Microbial exopolysaccharides (levan, pullulan) and glucose were used to prepare CONPs under different synthesis conditions. Coating was attempted by adding the carbohydrates during (direct coating) or after (subsequent coating) the synthesis of CONPs. The obtained nanoparticles were characterized by X-Ray diffraction analysis, Fourier transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The suspension stability of the uncoated and coated CONPs in aqueous media was evaluated by measuring the hydrodynamic size, zeta potential and turbidity. The FT-IR spectra revealed the differences between coated CONPs and showed the success of subsequent coating with carbohydrates. Coating with carbohydrates improved the stability the CONP suspension by decreasing the size of aggregated particles. The suspensions of levan- and glucose-coated CONPs had the best stability. In this study, CONPs were prepared using non-toxic materials, which were completely environmentally friendly. The obtained results open new horizons for CONP synthesis, improving their biological applications.",
journal = "Journal of the Serbian Chemical Society",
title = "Improving stability of cerium oxide nanoparticles by microbial polysaccharides coating",
volume = "83",
number = "6",
pages = "745-757",
doi = "10.2298/JSC171205031M"
}
Milenković, I., Radotić, K., Matović, B., Prekajski, M. D., Živković, L., Jakovljević, D., Gojgić-Cvijović, G.,& Beškoski, V. P.. (2018). Improving stability of cerium oxide nanoparticles by microbial polysaccharides coating. in Journal of the Serbian Chemical Society, 83(6), 745-757.
https://doi.org/10.2298/JSC171205031M
Milenković I, Radotić K, Matović B, Prekajski MD, Živković L, Jakovljević D, Gojgić-Cvijović G, Beškoski VP. Improving stability of cerium oxide nanoparticles by microbial polysaccharides coating. in Journal of the Serbian Chemical Society. 2018;83(6):745-757.
doi:10.2298/JSC171205031M .
Milenković, Ivana, Radotić, Ksenija, Matović, Branko, Prekajski, Marija D., Živković, Ljiljana, Jakovljević, Dragica, Gojgić-Cvijović, Gordana, Beškoski, Vladimir P., "Improving stability of cerium oxide nanoparticles by microbial polysaccharides coating" in Journal of the Serbian Chemical Society, 83, no. 6 (2018):745-757,
https://doi.org/10.2298/JSC171205031M . .
9
9
9

In-situ immobilization of Sr radioactive isotope using nanocrystalline hydroxyapatite

Prekajski-Đorđević, Marija D.; Maletaškić, Jelena; Stanković, Nadežda; Babić, Biljana M.; Yoshida, Katsumi; Yano, Toyohiko; Matović, Branko

(2018)

TY  - JOUR
AU  - Prekajski-Đorđević, Marija D.
AU  - Maletaškić, Jelena
AU  - Stanković, Nadežda
AU  - Babić, Biljana M.
AU  - Yoshida, Katsumi
AU  - Yano, Toyohiko
AU  - Matović, Branko
PY  - 2018
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1874
AB  - Hydroxyapatite was used as the inert matrix for in-situ immobilization of strontium (Sr) radioactive isotopes at room temperature. A nano-emulsification method was applied to synthesize Sr-substituted calcium hydroxyapatite (Ca1-xSrx)PO4)(6)(OH)(2). The concentration of incorporated Sr was in the range of 0 LT = x LT = 1. Immobilization of Sr was evaluated using a stable isotope instead of radioactive isotope. The effect of strontium concentration on the crystal structure was studied and the results have showed that in the whole concentration range, Sr forms solid solutions with the host hydroxyapatite crystal structure. Powders comprised of nanometre sized particles were obtained and their properties, such as crystallite and particle size, changes in lattice parameters as function of dopant content and thermal stability, were further examined. It was found that the crystal structure of obtained powders is thermally stable at high temperatures. No secondary phases were formed in as-prepared powders or during calcination. The results in this study showed that nano-emulsion strategy provides a simple pathway for synthesis of a single-phase Sr-substituted hydroxyapatite, which can be used for immobilization of Sr radioactive isotopes.
T2  - Ceramics International
T1  - In-situ immobilization of Sr radioactive isotope using nanocrystalline hydroxyapatite
VL  - 44
IS  - 2
SP  - 1771
EP  - 1777
DO  - 10.1016/j.ceramint.2017.10.110
ER  - 
@article{
author = "Prekajski-Đorđević, Marija D. and Maletaškić, Jelena and Stanković, Nadežda and Babić, Biljana M. and Yoshida, Katsumi and Yano, Toyohiko and Matović, Branko",
year = "2018",
abstract = "Hydroxyapatite was used as the inert matrix for in-situ immobilization of strontium (Sr) radioactive isotopes at room temperature. A nano-emulsification method was applied to synthesize Sr-substituted calcium hydroxyapatite (Ca1-xSrx)PO4)(6)(OH)(2). The concentration of incorporated Sr was in the range of 0 LT = x LT = 1. Immobilization of Sr was evaluated using a stable isotope instead of radioactive isotope. The effect of strontium concentration on the crystal structure was studied and the results have showed that in the whole concentration range, Sr forms solid solutions with the host hydroxyapatite crystal structure. Powders comprised of nanometre sized particles were obtained and their properties, such as crystallite and particle size, changes in lattice parameters as function of dopant content and thermal stability, were further examined. It was found that the crystal structure of obtained powders is thermally stable at high temperatures. No secondary phases were formed in as-prepared powders or during calcination. The results in this study showed that nano-emulsion strategy provides a simple pathway for synthesis of a single-phase Sr-substituted hydroxyapatite, which can be used for immobilization of Sr radioactive isotopes.",
journal = "Ceramics International",
title = "In-situ immobilization of Sr radioactive isotope using nanocrystalline hydroxyapatite",
volume = "44",
number = "2",
pages = "1771-1777",
doi = "10.1016/j.ceramint.2017.10.110"
}
Prekajski-Đorđević, M. D., Maletaškić, J., Stanković, N., Babić, B. M., Yoshida, K., Yano, T.,& Matović, B.. (2018). In-situ immobilization of Sr radioactive isotope using nanocrystalline hydroxyapatite. in Ceramics International, 44(2), 1771-1777.
https://doi.org/10.1016/j.ceramint.2017.10.110
Prekajski-Đorđević MD, Maletaškić J, Stanković N, Babić BM, Yoshida K, Yano T, Matović B. In-situ immobilization of Sr radioactive isotope using nanocrystalline hydroxyapatite. in Ceramics International. 2018;44(2):1771-1777.
doi:10.1016/j.ceramint.2017.10.110 .
Prekajski-Đorđević, Marija D., Maletaškić, Jelena, Stanković, Nadežda, Babić, Biljana M., Yoshida, Katsumi, Yano, Toyohiko, Matović, Branko, "In-situ immobilization of Sr radioactive isotope using nanocrystalline hydroxyapatite" in Ceramics International, 44, no. 2 (2018):1771-1777,
https://doi.org/10.1016/j.ceramint.2017.10.110 . .
9
8
10

A New Photocatalyst Bismuth Oxo Citrate: Synthesis, Characterization, and Photocatalytic Performance

Najdanović, Slobodan M.; Petrović, Milica M.; Slipper, Ian J.; Kostić, Miloš M.; Prekajski, Marija D.; Mitrović, Jelena Z.; Bojić, Aleksandar Lj.

(2018)

TY  - JOUR
AU  - Najdanović, Slobodan M.
AU  - Petrović, Milica M.
AU  - Slipper, Ian J.
AU  - Kostić, Miloš M.
AU  - Prekajski, Marija D.
AU  - Mitrović, Jelena Z.
AU  - Bojić, Aleksandar Lj.
PY  - 2018
UR  - http://www.ingentaconnect.com/content/10.2175/106143017X15131012152924
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/7869
AB  - A new photocatalyst bismuth oxo citrate was synthesized by facile precipitation process with calcination at 200 8C. The photocatalyst was characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD), Fouriertransform infrared (FTIR) spectroscopy, N2 sorptometry, and elemental analysis. Morphologically, it is composed of polyhedral particles with different, irregular shapes and sizes. The specific surface area (SSA) of the photocatalyst was 8.92 m2 g-1. It showed very good photocatalytic performance and reusability. Total decolorization of Reactive Blue 19 (RB19) was achieved in less than 10 minutes, which is much faster in comparison with TiO2 P25. Also, bismuth oxo citrate showed higher photocatalytic activity than other photocatalysts based on bismuth compounds reported by other authors. Optimal photocatalysis parameters were pH 2 and photocatalyst dose of 250 mg dm-3. The decolorization rate was found to decrease as initial dye concentration increased. The photocatalytic data best fitted to L-H kinetic model with pseudo-first order reaction rate. Chrastil diffusion model showed that diffusion has not influence on the process. Water Environ. Res., 90, 719 (2018). © 2018 Water Environment Federation.
T2  - Water Environment Research
T1  - A New Photocatalyst Bismuth Oxo Citrate: Synthesis, Characterization, and Photocatalytic Performance
VL  - 90
IS  - 8
SP  - 719
EP  - 728
DO  - 10.2175/106143017X15131012152924
ER  - 
@article{
author = "Najdanović, Slobodan M. and Petrović, Milica M. and Slipper, Ian J. and Kostić, Miloš M. and Prekajski, Marija D. and Mitrović, Jelena Z. and Bojić, Aleksandar Lj.",
year = "2018",
abstract = "A new photocatalyst bismuth oxo citrate was synthesized by facile precipitation process with calcination at 200 8C. The photocatalyst was characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD), Fouriertransform infrared (FTIR) spectroscopy, N2 sorptometry, and elemental analysis. Morphologically, it is composed of polyhedral particles with different, irregular shapes and sizes. The specific surface area (SSA) of the photocatalyst was 8.92 m2 g-1. It showed very good photocatalytic performance and reusability. Total decolorization of Reactive Blue 19 (RB19) was achieved in less than 10 minutes, which is much faster in comparison with TiO2 P25. Also, bismuth oxo citrate showed higher photocatalytic activity than other photocatalysts based on bismuth compounds reported by other authors. Optimal photocatalysis parameters were pH 2 and photocatalyst dose of 250 mg dm-3. The decolorization rate was found to decrease as initial dye concentration increased. The photocatalytic data best fitted to L-H kinetic model with pseudo-first order reaction rate. Chrastil diffusion model showed that diffusion has not influence on the process. Water Environ. Res., 90, 719 (2018). © 2018 Water Environment Federation.",
journal = "Water Environment Research",
title = "A New Photocatalyst Bismuth Oxo Citrate: Synthesis, Characterization, and Photocatalytic Performance",
volume = "90",
number = "8",
pages = "719-728",
doi = "10.2175/106143017X15131012152924"
}
Najdanović, S. M., Petrović, M. M., Slipper, I. J., Kostić, M. M., Prekajski, M. D., Mitrović, J. Z.,& Bojić, A. Lj.. (2018). A New Photocatalyst Bismuth Oxo Citrate: Synthesis, Characterization, and Photocatalytic Performance. in Water Environment Research, 90(8), 719-728.
https://doi.org/10.2175/106143017X15131012152924
Najdanović SM, Petrović MM, Slipper IJ, Kostić MM, Prekajski MD, Mitrović JZ, Bojić AL. A New Photocatalyst Bismuth Oxo Citrate: Synthesis, Characterization, and Photocatalytic Performance. in Water Environment Research. 2018;90(8):719-728.
doi:10.2175/106143017X15131012152924 .
Najdanović, Slobodan M., Petrović, Milica M., Slipper, Ian J., Kostić, Miloš M., Prekajski, Marija D., Mitrović, Jelena Z., Bojić, Aleksandar Lj., "A New Photocatalyst Bismuth Oxo Citrate: Synthesis, Characterization, and Photocatalytic Performance" in Water Environment Research, 90, no. 8 (2018):719-728,
https://doi.org/10.2175/106143017X15131012152924 . .
1
2
2
2

Photoluminescent properties of spider silk coated with Eu-doped nanoceria

Dmitrović, Svetlana; Nikolic, Marko G.; Jelenković, Branislav; Prekajski, Marija D.; Rabasović, Mihailo D.; Zarubica, Aleksandra R.; Branković, Goran O.; Matović, Branko

(2017)

TY  - JOUR
AU  - Dmitrović, Svetlana
AU  - Nikolic, Marko G.
AU  - Jelenković, Branislav
AU  - Prekajski, Marija D.
AU  - Rabasović, Mihailo D.
AU  - Zarubica, Aleksandra R.
AU  - Branković, Goran O.
AU  - Matović, Branko
PY  - 2017
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1768
AB  - Spider dragline silk was coated with pure as well as Eu-doped ceria nanopowders at the room temperature. The treatment was done by immersion of the spider silkmesh into aqueous solutions of cerium nitrate (Ce(NO3)(3)) and ammonium hydroxide (NH4OH). Depending on the relationship between Ce3+ ion and ammonium hydroxide concentration, coated fibers exhibited a different thickness. Obtained materials were studied by means of FESEM. It was found that ceria nanoparticles of average size of 3 nm were coated along spider thread. X-ray diffraction (XRD) and selected-area electron diffraction (SAED) confirmed crystal nature of nanoparticle coating of spider silk. By using Williamson-Hall plots, crystallite size and strain were estimated. EDS measurement confirmed the presence of Eu in spider-Eu-doped ceria composite, and according to FTIR analysis, the interaction between CeO2 and spider silk was proposed. The morphology of obtained composite was observed by TEM. The photoluminescence emission spectra of spider silk coated with Eu-doped ceria were measured with two different excitations of 385 and 466 nm. The two-photon excited auto-fluorescence of spider silk coated with Eu-doped ceria was detected using a nonlinear laser scanning microscope. Obtained composite has a potential as a fluorescent labeling material in diverse applications.
T2  - Journal of Nanoparticle Research
T1  - Photoluminescent properties of spider silk coated with Eu-doped nanoceria
VL  - 19
IS  - 2
DO  - 10.1007/s11051-017-3750-9
ER  - 
@article{
author = "Dmitrović, Svetlana and Nikolic, Marko G. and Jelenković, Branislav and Prekajski, Marija D. and Rabasović, Mihailo D. and Zarubica, Aleksandra R. and Branković, Goran O. and Matović, Branko",
year = "2017",
abstract = "Spider dragline silk was coated with pure as well as Eu-doped ceria nanopowders at the room temperature. The treatment was done by immersion of the spider silkmesh into aqueous solutions of cerium nitrate (Ce(NO3)(3)) and ammonium hydroxide (NH4OH). Depending on the relationship between Ce3+ ion and ammonium hydroxide concentration, coated fibers exhibited a different thickness. Obtained materials were studied by means of FESEM. It was found that ceria nanoparticles of average size of 3 nm were coated along spider thread. X-ray diffraction (XRD) and selected-area electron diffraction (SAED) confirmed crystal nature of nanoparticle coating of spider silk. By using Williamson-Hall plots, crystallite size and strain were estimated. EDS measurement confirmed the presence of Eu in spider-Eu-doped ceria composite, and according to FTIR analysis, the interaction between CeO2 and spider silk was proposed. The morphology of obtained composite was observed by TEM. The photoluminescence emission spectra of spider silk coated with Eu-doped ceria were measured with two different excitations of 385 and 466 nm. The two-photon excited auto-fluorescence of spider silk coated with Eu-doped ceria was detected using a nonlinear laser scanning microscope. Obtained composite has a potential as a fluorescent labeling material in diverse applications.",
journal = "Journal of Nanoparticle Research",
title = "Photoluminescent properties of spider silk coated with Eu-doped nanoceria",
volume = "19",
number = "2",
doi = "10.1007/s11051-017-3750-9"
}
Dmitrović, S., Nikolic, M. G., Jelenković, B., Prekajski, M. D., Rabasović, M. D., Zarubica, A. R., Branković, G. O.,& Matović, B.. (2017). Photoluminescent properties of spider silk coated with Eu-doped nanoceria. in Journal of Nanoparticle Research, 19(2).
https://doi.org/10.1007/s11051-017-3750-9
Dmitrović S, Nikolic MG, Jelenković B, Prekajski MD, Rabasović MD, Zarubica AR, Branković GO, Matović B. Photoluminescent properties of spider silk coated with Eu-doped nanoceria. in Journal of Nanoparticle Research. 2017;19(2).
doi:10.1007/s11051-017-3750-9 .
Dmitrović, Svetlana, Nikolic, Marko G., Jelenković, Branislav, Prekajski, Marija D., Rabasović, Mihailo D., Zarubica, Aleksandra R., Branković, Goran O., Matović, Branko, "Photoluminescent properties of spider silk coated with Eu-doped nanoceria" in Journal of Nanoparticle Research, 19, no. 2 (2017),
https://doi.org/10.1007/s11051-017-3750-9 . .
1
1

Synthesis and characterization of nanometric gadolinia powders by room temperature solid-state displacement reaction and low temperature calcination

Matović, Branko; Maletaškić, Jelena; Prekajski-Đorđević, Marija D.; Maksimović, Vesna; Zagorac, Jelena B.; Yoshida, Katsumi; Yano, Toyohiko

(2017)

TY  - JOUR
AU  - Matović, Branko
AU  - Maletaškić, Jelena
AU  - Prekajski-Đorđević, Marija D.
AU  - Maksimović, Vesna
AU  - Zagorac, Jelena B.
AU  - Yoshida, Katsumi
AU  - Yano, Toyohiko
PY  - 2017
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1541
AB  - Nanometric-sized gadolinia (Gd2O3) powders were obtained by applying solid-state displacement reaction at room temperature and low temperature calcination. The XRD analysis revealed that the room temperature product was gadolinium hydroxide, Gd(OH)(3). In order to induce crystallization of Gd2O3, the subsequent calcination at 600 similar to 1200 degrees C of the room temperature reaction products was studied. Calculation of average crystallite size (D) as well as separation of the effect of crystallite size and strain of nanocrystals was performed on the basic of Williamson-Hall plots. The morphologies of powders calcined at different temperatures were followed by scanning electron microscopy. The pure cubic Gd2O3 phase was made at 600 degrees C which converted to monoclinic Gd2O3 phase between 1400 and 1600 degrees C. High density (96% of theoretical density) ceramic pellet free of any additives was obtained after pressureless sintering at 1600 degrees C for 4 h in air, using calcined powder at 600 degrees C. (C) 2017 Elsevier Ltd. All rights reserved.
T2  - Journal of the European Ceramic Society
T1  - Synthesis and characterization of nanometric gadolinia powders by room temperature solid-state displacement reaction and low temperature calcination
VL  - 37
IS  - 8
SP  - 2843
EP  - 2848
DO  - 10.1016/j.jeurceramsoc.2017.03.004
ER  - 
@article{
author = "Matović, Branko and Maletaškić, Jelena and Prekajski-Đorđević, Marija D. and Maksimović, Vesna and Zagorac, Jelena B. and Yoshida, Katsumi and Yano, Toyohiko",
year = "2017",
abstract = "Nanometric-sized gadolinia (Gd2O3) powders were obtained by applying solid-state displacement reaction at room temperature and low temperature calcination. The XRD analysis revealed that the room temperature product was gadolinium hydroxide, Gd(OH)(3). In order to induce crystallization of Gd2O3, the subsequent calcination at 600 similar to 1200 degrees C of the room temperature reaction products was studied. Calculation of average crystallite size (D) as well as separation of the effect of crystallite size and strain of nanocrystals was performed on the basic of Williamson-Hall plots. The morphologies of powders calcined at different temperatures were followed by scanning electron microscopy. The pure cubic Gd2O3 phase was made at 600 degrees C which converted to monoclinic Gd2O3 phase between 1400 and 1600 degrees C. High density (96% of theoretical density) ceramic pellet free of any additives was obtained after pressureless sintering at 1600 degrees C for 4 h in air, using calcined powder at 600 degrees C. (C) 2017 Elsevier Ltd. All rights reserved.",
journal = "Journal of the European Ceramic Society",
title = "Synthesis and characterization of nanometric gadolinia powders by room temperature solid-state displacement reaction and low temperature calcination",
volume = "37",
number = "8",
pages = "2843-2848",
doi = "10.1016/j.jeurceramsoc.2017.03.004"
}
Matović, B., Maletaškić, J., Prekajski-Đorđević, M. D., Maksimović, V., Zagorac, J. B., Yoshida, K.,& Yano, T.. (2017). Synthesis and characterization of nanometric gadolinia powders by room temperature solid-state displacement reaction and low temperature calcination. in Journal of the European Ceramic Society, 37(8), 2843-2848.
https://doi.org/10.1016/j.jeurceramsoc.2017.03.004
Matović B, Maletaškić J, Prekajski-Đorđević MD, Maksimović V, Zagorac JB, Yoshida K, Yano T. Synthesis and characterization of nanometric gadolinia powders by room temperature solid-state displacement reaction and low temperature calcination. in Journal of the European Ceramic Society. 2017;37(8):2843-2848.
doi:10.1016/j.jeurceramsoc.2017.03.004 .
Matović, Branko, Maletaškić, Jelena, Prekajski-Đorđević, Marija D., Maksimović, Vesna, Zagorac, Jelena B., Yoshida, Katsumi, Yano, Toyohiko, "Synthesis and characterization of nanometric gadolinia powders by room temperature solid-state displacement reaction and low temperature calcination" in Journal of the European Ceramic Society, 37, no. 8 (2017):2843-2848,
https://doi.org/10.1016/j.jeurceramsoc.2017.03.004 . .
4
4
4

Synthesis and characterization of Cr3+ doped TiO2 nanometric powders

Prekajski-Đorđević, Marija D.; Zarubica, Aleksandra R.; Babić, Biljana M.; Jokić, Bojan M.; Pantić, Jelena R.; Luković, Jelena M.; Matović, Branko

(Elsevier, 2016)

TY  - JOUR
AU  - Prekajski-Đorđević, Marija D.
AU  - Zarubica, Aleksandra R.
AU  - Babić, Biljana M.
AU  - Jokić, Bojan M.
AU  - Pantić, Jelena R.
AU  - Luković, Jelena M.
AU  - Matović, Branko
PY  - 2016
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/824
AB  - Simple route was used for synthesis of nanostructured titania samples doped with 3 and 6 mol% of Cr3+ Titanium(IV)-isopropoxide and water were used as starting materials and as an agents for controlling hydrolysis and condensation reactions. The phase evolution of titania (TiO2) was followed by calcination at 400, 600 and 800 degrees C. The synthesized powders were examined by field emission scanning electron microscopy (FESEM), and X-ray diffraction (XRD). Single-phase anatase was obtained at low temperature (400 degrees C) in all cases. The photocatalytic activity of TiO2 doped nanopowders was evaluated by the photocatalytic degradation of crystal violet in aqueous solution. The present study indicates that this simple synthesis method can be an effective route to produce efficient photoactive doped anatase nanopowders. (C) 2015 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
PB  - Elsevier
T2  - Ceramics International
T1  - Synthesis and characterization of Cr3+ doped TiO2 nanometric powders
VL  - 42
IS  - 1
SP  - 1862
EP  - 1869
DO  - 10.1016/j.ceramint.2015.09.151
ER  - 
@article{
author = "Prekajski-Đorđević, Marija D. and Zarubica, Aleksandra R. and Babić, Biljana M. and Jokić, Bojan M. and Pantić, Jelena R. and Luković, Jelena M. and Matović, Branko",
year = "2016",
abstract = "Simple route was used for synthesis of nanostructured titania samples doped with 3 and 6 mol% of Cr3+ Titanium(IV)-isopropoxide and water were used as starting materials and as an agents for controlling hydrolysis and condensation reactions. The phase evolution of titania (TiO2) was followed by calcination at 400, 600 and 800 degrees C. The synthesized powders were examined by field emission scanning electron microscopy (FESEM), and X-ray diffraction (XRD). Single-phase anatase was obtained at low temperature (400 degrees C) in all cases. The photocatalytic activity of TiO2 doped nanopowders was evaluated by the photocatalytic degradation of crystal violet in aqueous solution. The present study indicates that this simple synthesis method can be an effective route to produce efficient photoactive doped anatase nanopowders. (C) 2015 Elsevier Ltd and Techna Group S.r.l. All rights reserved.",
publisher = "Elsevier",
journal = "Ceramics International",
title = "Synthesis and characterization of Cr3+ doped TiO2 nanometric powders",
volume = "42",
number = "1",
pages = "1862-1869",
doi = "10.1016/j.ceramint.2015.09.151"
}
Prekajski-Đorđević, M. D., Zarubica, A. R., Babić, B. M., Jokić, B. M., Pantić, J. R., Luković, J. M.,& Matović, B.. (2016). Synthesis and characterization of Cr3+ doped TiO2 nanometric powders. in Ceramics International
Elsevier., 42(1), 1862-1869.
https://doi.org/10.1016/j.ceramint.2015.09.151
Prekajski-Đorđević MD, Zarubica AR, Babić BM, Jokić BM, Pantić JR, Luković JM, Matović B. Synthesis and characterization of Cr3+ doped TiO2 nanometric powders. in Ceramics International. 2016;42(1):1862-1869.
doi:10.1016/j.ceramint.2015.09.151 .
Prekajski-Đorđević, Marija D., Zarubica, Aleksandra R., Babić, Biljana M., Jokić, Bojan M., Pantić, Jelena R., Luković, Jelena M., Matović, Branko, "Synthesis and characterization of Cr3+ doped TiO2 nanometric powders" in Ceramics International, 42, no. 1 (2016):1862-1869,
https://doi.org/10.1016/j.ceramint.2015.09.151 . .
1
6
5
6

Synthesis and characterization of spider silk calcite composite

Dmitrović, Svetlana; Jokić, Bojan M.; Prekajski, Marija D.; Pantić, Jelena R.; Zmejkoski, Danica; Zarubica, Aleksandra R.; Matović, Branko

(2016)

TY  - JOUR
AU  - Dmitrović, Svetlana
AU  - Jokić, Bojan M.
AU  - Prekajski, Marija D.
AU  - Pantić, Jelena R.
AU  - Zmejkoski, Danica
AU  - Zarubica, Aleksandra R.
AU  - Matović, Branko
PY  - 2016
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1172
AB  - Spider silk poses excellent mechanical properties, tenacity and elasticity and it has been used as a template for calcite mineralization to improve load bearing strength of osteoconductive calcite. The samples were obtained by mimicking biomineralization for five days in order to follow formation and growth of calcite on the surface of spider silk. Crystal phase was detected by XRD and FTIR spectroscopy. Microstructure, crystal size and its morphology were studied by means of FESEM. After two days of processing, pure calcite phase was obtained, and a size of the formed crystals increased with prolongation of biomineralization.
T2  - Processing and Application of Ceramics
T1  - Synthesis and characterization of spider silk calcite composite
VL  - 10
IS  - 1
SP  - 37
EP  - 40
DO  - 10.2298/PAC1601037D
ER  - 
@article{
author = "Dmitrović, Svetlana and Jokić, Bojan M. and Prekajski, Marija D. and Pantić, Jelena R. and Zmejkoski, Danica and Zarubica, Aleksandra R. and Matović, Branko",
year = "2016",
abstract = "Spider silk poses excellent mechanical properties, tenacity and elasticity and it has been used as a template for calcite mineralization to improve load bearing strength of osteoconductive calcite. The samples were obtained by mimicking biomineralization for five days in order to follow formation and growth of calcite on the surface of spider silk. Crystal phase was detected by XRD and FTIR spectroscopy. Microstructure, crystal size and its morphology were studied by means of FESEM. After two days of processing, pure calcite phase was obtained, and a size of the formed crystals increased with prolongation of biomineralization.",
journal = "Processing and Application of Ceramics",
title = "Synthesis and characterization of spider silk calcite composite",
volume = "10",
number = "1",
pages = "37-40",
doi = "10.2298/PAC1601037D"
}
Dmitrović, S., Jokić, B. M., Prekajski, M. D., Pantić, J. R., Zmejkoski, D., Zarubica, A. R.,& Matović, B.. (2016). Synthesis and characterization of spider silk calcite composite. in Processing and Application of Ceramics, 10(1), 37-40.
https://doi.org/10.2298/PAC1601037D
Dmitrović S, Jokić BM, Prekajski MD, Pantić JR, Zmejkoski D, Zarubica AR, Matović B. Synthesis and characterization of spider silk calcite composite. in Processing and Application of Ceramics. 2016;10(1):37-40.
doi:10.2298/PAC1601037D .
Dmitrović, Svetlana, Jokić, Bojan M., Prekajski, Marija D., Pantić, Jelena R., Zmejkoski, Danica, Zarubica, Aleksandra R., Matović, Branko, "Synthesis and characterization of spider silk calcite composite" in Processing and Application of Ceramics, 10, no. 1 (2016):37-40,
https://doi.org/10.2298/PAC1601037D . .
3
3
3

A novel reduction-oxidation synthetic route for hafnia

Matović, Branko; Pantić, Jelena R.; Luković, Jelena M.; Čebela, Maria; Dmitrović, Svetlana; Mirković, Miljana M.; Prekajski, Marija D.

(Elsevier, 2016)

TY  - JOUR
AU  - Matović, Branko
AU  - Pantić, Jelena R.
AU  - Luković, Jelena M.
AU  - Čebela, Maria
AU  - Dmitrović, Svetlana
AU  - Mirković, Miljana M.
AU  - Prekajski, Marija D.
PY  - 2016
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/826
AB  - Amorphous hafnia (HfO2) powders were synthesized through a novel reduction oxidation route, in which, metal hafnium was reduced from hafnium tetrachloride (HfCl4) by sodium borohydride (NaBH4), and then oxidized in ambient atmosphere. Upon calcinations, the powder crystallized to nanometric size HfO2 powder with monoclinic structure. Powder properties such as lattice parameters, crystallite and particle size were studied. X-ray diffraction analysis (XRD) was used to characterize structure and phase evolution in synthesized samples. Calculation of the average crystallite size (D) was performed on the basis of the full width at half maximum intensity (FWHM) of the XRD peaks. Williamson-Hall plots were used to separate the effect of the size and strain in the nanocrystals. The morphologies of powders calcinated at higher temperatures were followed by Scanning electron microscopy (SEM). (C) 2015 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
PB  - Elsevier
T2  - Ceramics International
T1  - A novel reduction-oxidation synthetic route for hafnia
VL  - 42
IS  - 1
SP  - 615
EP  - 620
DO  - 10.1016/j.ceramint.2015.08.155
ER  - 
@article{
author = "Matović, Branko and Pantić, Jelena R. and Luković, Jelena M. and Čebela, Maria and Dmitrović, Svetlana and Mirković, Miljana M. and Prekajski, Marija D.",
year = "2016",
abstract = "Amorphous hafnia (HfO2) powders were synthesized through a novel reduction oxidation route, in which, metal hafnium was reduced from hafnium tetrachloride (HfCl4) by sodium borohydride (NaBH4), and then oxidized in ambient atmosphere. Upon calcinations, the powder crystallized to nanometric size HfO2 powder with monoclinic structure. Powder properties such as lattice parameters, crystallite and particle size were studied. X-ray diffraction analysis (XRD) was used to characterize structure and phase evolution in synthesized samples. Calculation of the average crystallite size (D) was performed on the basis of the full width at half maximum intensity (FWHM) of the XRD peaks. Williamson-Hall plots were used to separate the effect of the size and strain in the nanocrystals. The morphologies of powders calcinated at higher temperatures were followed by Scanning electron microscopy (SEM). (C) 2015 Elsevier Ltd and Techna Group S.r.l. All rights reserved.",
publisher = "Elsevier",
journal = "Ceramics International",
title = "A novel reduction-oxidation synthetic route for hafnia",
volume = "42",
number = "1",
pages = "615-620",
doi = "10.1016/j.ceramint.2015.08.155"
}
Matović, B., Pantić, J. R., Luković, J. M., Čebela, M., Dmitrović, S., Mirković, M. M.,& Prekajski, M. D.. (2016). A novel reduction-oxidation synthetic route for hafnia. in Ceramics International
Elsevier., 42(1), 615-620.
https://doi.org/10.1016/j.ceramint.2015.08.155
Matović B, Pantić JR, Luković JM, Čebela M, Dmitrović S, Mirković MM, Prekajski MD. A novel reduction-oxidation synthetic route for hafnia. in Ceramics International. 2016;42(1):615-620.
doi:10.1016/j.ceramint.2015.08.155 .
Matović, Branko, Pantić, Jelena R., Luković, Jelena M., Čebela, Maria, Dmitrović, Svetlana, Mirković, Miljana M., Prekajski, Marija D., "A novel reduction-oxidation synthetic route for hafnia" in Ceramics International, 42, no. 1 (2016):615-620,
https://doi.org/10.1016/j.ceramint.2015.08.155 . .
14
13
14

Synthesis and densification of single-phase mayenite (C12A7)

Matović, Branko; Prekajski, Marija D.; Pantić, Jelena R.; Braeuniger, Thomas; Rosić, Milena; Zagorac, Dejan; Milivojević, Dušan

(2016)

TY  - JOUR
AU  - Matović, Branko
AU  - Prekajski, Marija D.
AU  - Pantić, Jelena R.
AU  - Braeuniger, Thomas
AU  - Rosić, Milena
AU  - Zagorac, Dejan
AU  - Milivojević, Dušan
PY  - 2016
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1227
AB  - Mayenite (C12A7) powders have been synthesized by self-combustion method (glycine/nitrate procedure - GNP and a newly suggested modified glycine/nitrate procedure - MGNP). The MGNP is derived from the GNP by substituting a portion of Al-nitrate with the less expensive Al-acetate. The effect of synthesis conditions of both procedures on the phase evolution was studied. Mayenite samples, obtained by using GNP and MGNP, followed by thermal treatment in air, were analyzed by using XRD method. The obtained results showed that crystallization started at 900 degrees C for the GNP and at 750 degrees C for the MGNP while below these temperatures samples are amorphous. Also, only observed phase was mayenite for MGNP, while a secondary phase is present in samples synthesized by using GNP. Scanning electron microscopy (SEM), electron paramagnetic resonance (EPR) and nuclear magnetic resonance spectroscopy (NMR) were used to characterize the pure mayenite phase at room temperature. Sintering behavior was studied by dilatometry. A relative density of 94% is obtained at 1300 degrees C. (C) 2016 Elsevier Ltd. All rights reserved.
T2  - Journal of the European Ceramic Society
T1  - Synthesis and densification of single-phase mayenite (C12A7)
VL  - 36
IS  - 16
SP  - 4237
EP  - 4241
DO  - 10.1016/j.jeurceramsoc.2016.06.014
ER  - 
@article{
author = "Matović, Branko and Prekajski, Marija D. and Pantić, Jelena R. and Braeuniger, Thomas and Rosić, Milena and Zagorac, Dejan and Milivojević, Dušan",
year = "2016",
abstract = "Mayenite (C12A7) powders have been synthesized by self-combustion method (glycine/nitrate procedure - GNP and a newly suggested modified glycine/nitrate procedure - MGNP). The MGNP is derived from the GNP by substituting a portion of Al-nitrate with the less expensive Al-acetate. The effect of synthesis conditions of both procedures on the phase evolution was studied. Mayenite samples, obtained by using GNP and MGNP, followed by thermal treatment in air, were analyzed by using XRD method. The obtained results showed that crystallization started at 900 degrees C for the GNP and at 750 degrees C for the MGNP while below these temperatures samples are amorphous. Also, only observed phase was mayenite for MGNP, while a secondary phase is present in samples synthesized by using GNP. Scanning electron microscopy (SEM), electron paramagnetic resonance (EPR) and nuclear magnetic resonance spectroscopy (NMR) were used to characterize the pure mayenite phase at room temperature. Sintering behavior was studied by dilatometry. A relative density of 94% is obtained at 1300 degrees C. (C) 2016 Elsevier Ltd. All rights reserved.",
journal = "Journal of the European Ceramic Society",
title = "Synthesis and densification of single-phase mayenite (C12A7)",
volume = "36",
number = "16",
pages = "4237-4241",
doi = "10.1016/j.jeurceramsoc.2016.06.014"
}
Matović, B., Prekajski, M. D., Pantić, J. R., Braeuniger, T., Rosić, M., Zagorac, D.,& Milivojević, D.. (2016). Synthesis and densification of single-phase mayenite (C12A7). in Journal of the European Ceramic Society, 36(16), 4237-4241.
https://doi.org/10.1016/j.jeurceramsoc.2016.06.014
Matović B, Prekajski MD, Pantić JR, Braeuniger T, Rosić M, Zagorac D, Milivojević D. Synthesis and densification of single-phase mayenite (C12A7). in Journal of the European Ceramic Society. 2016;36(16):4237-4241.
doi:10.1016/j.jeurceramsoc.2016.06.014 .
Matović, Branko, Prekajski, Marija D., Pantić, Jelena R., Braeuniger, Thomas, Rosić, Milena, Zagorac, Dejan, Milivojević, Dušan, "Synthesis and densification of single-phase mayenite (C12A7)" in Journal of the European Ceramic Society, 36, no. 16 (2016):4237-4241,
https://doi.org/10.1016/j.jeurceramsoc.2016.06.014 . .
10
11
11

Structural, morphological and electrical properties of Ce1-xRuxO2-delta (x=0.005-0.02) solid solutions

Stojmenović, Marija; Žunić, Milan; Gulicovski, Jelena J.; Dodevski, Vladimir; Prekajski, Marija D.; Raduovic, Aleksandar; Mentus, Slavko V.

(2016)

TY  - JOUR
AU  - Stojmenović, Marija
AU  - Žunić, Milan
AU  - Gulicovski, Jelena J.
AU  - Dodevski, Vladimir
AU  - Prekajski, Marija D.
AU  - Raduovic, Aleksandar
AU  - Mentus, Slavko V.
PY  - 2016
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1185
AB  - Nanoparticles of ceria ruthenium oxide solid solutions with composition Ce1-xRuxO2-delta (X=0.005-0.02) were successfully produced by self propagating room temperature synthesis using reaction between metal nitrates and sodium hydroxide. These compositions were characterized by X-ray powder diffraction (XRD), Raman spectroscopy, specific surface area, transmission electron microscopy (TEM), scanning electron microscopy (SEM) and energy dispersive X-ray spectroscopy (EDX). The experimental measurements were complemented by calculations based on the ion packing model. XRD analysis revealed the presence of single phase solid solutions with CeO2 fluorite structure (regardless of dopants concentration) and Raman spectroscopy confirmed the presence of the RuO2 phase. Electrochemical impedance spectroscopy (EIS) measurements of sintered samples at different temperatures showed that the small ionic radius dopant reduces oxygen vacancies mobility that is responsible for the conductivity of these ceramics. (C) 2016 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
T2  - Ceramics International
T1  - Structural, morphological and electrical properties of Ce1-xRuxO2-delta (x=0.005-0.02) solid solutions
VL  - 42
IS  - 12
SP  - 14011
EP  - 14020
DO  - 10.1016/j.ceramint.2016.06.007
ER  - 
@article{
author = "Stojmenović, Marija and Žunić, Milan and Gulicovski, Jelena J. and Dodevski, Vladimir and Prekajski, Marija D. and Raduovic, Aleksandar and Mentus, Slavko V.",
year = "2016",
abstract = "Nanoparticles of ceria ruthenium oxide solid solutions with composition Ce1-xRuxO2-delta (X=0.005-0.02) were successfully produced by self propagating room temperature synthesis using reaction between metal nitrates and sodium hydroxide. These compositions were characterized by X-ray powder diffraction (XRD), Raman spectroscopy, specific surface area, transmission electron microscopy (TEM), scanning electron microscopy (SEM) and energy dispersive X-ray spectroscopy (EDX). The experimental measurements were complemented by calculations based on the ion packing model. XRD analysis revealed the presence of single phase solid solutions with CeO2 fluorite structure (regardless of dopants concentration) and Raman spectroscopy confirmed the presence of the RuO2 phase. Electrochemical impedance spectroscopy (EIS) measurements of sintered samples at different temperatures showed that the small ionic radius dopant reduces oxygen vacancies mobility that is responsible for the conductivity of these ceramics. (C) 2016 Elsevier Ltd and Techna Group S.r.l. All rights reserved.",
journal = "Ceramics International",
title = "Structural, morphological and electrical properties of Ce1-xRuxO2-delta (x=0.005-0.02) solid solutions",
volume = "42",
number = "12",
pages = "14011-14020",
doi = "10.1016/j.ceramint.2016.06.007"
}
Stojmenović, M., Žunić, M., Gulicovski, J. J., Dodevski, V., Prekajski, M. D., Raduovic, A.,& Mentus, S. V.. (2016). Structural, morphological and electrical properties of Ce1-xRuxO2-delta (x=0.005-0.02) solid solutions. in Ceramics International, 42(12), 14011-14020.
https://doi.org/10.1016/j.ceramint.2016.06.007
Stojmenović M, Žunić M, Gulicovski JJ, Dodevski V, Prekajski MD, Raduovic A, Mentus SV. Structural, morphological and electrical properties of Ce1-xRuxO2-delta (x=0.005-0.02) solid solutions. in Ceramics International. 2016;42(12):14011-14020.
doi:10.1016/j.ceramint.2016.06.007 .
Stojmenović, Marija, Žunić, Milan, Gulicovski, Jelena J., Dodevski, Vladimir, Prekajski, Marija D., Raduovic, Aleksandar, Mentus, Slavko V., "Structural, morphological and electrical properties of Ce1-xRuxO2-delta (x=0.005-0.02) solid solutions" in Ceramics International, 42, no. 12 (2016):14011-14020,
https://doi.org/10.1016/j.ceramint.2016.06.007 . .
6
7
8

Synthesis of silver doped hydroxyapatite nanospheres using Ouzo effect

Prekajski, Marija D.; Jokić, Bojan M.; Kalijadis, Ana; Maletaškić, Jelena; Stanković, Nadežda; Luković, Jelena M.; Matović, Branko

(2016)

TY  - JOUR
AU  - Prekajski, Marija D.
AU  - Jokić, Bojan M.
AU  - Kalijadis, Ana
AU  - Maletaškić, Jelena
AU  - Stanković, Nadežda
AU  - Luković, Jelena M.
AU  - Matović, Branko
PY  - 2016
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1328
AB  - Nanoemulsion technique, based on Ouzo effect, was applied for synthesis of the pure and silver doped (2.5 and 5 mol%) calcium hydroxyapatite (HAp). After calcination at 500 degrees C fully crystallized powders were obtained. X-ray powder diffraction analysis accompanied with Rietveld refinement revealed that the synthesized powders were single-phase hydroxyapatite. Raman spectroscopy also confirmed that the synthesized powders were single-phase. The obtained HAp particles were spherical in shape and their sizes were in the nanometer range which was revealed by field emission scanning electron microscopy analysis (FESEM). The successful synthesis of the single-phase Ag doped HAp showed that nanoemulsion method is a simple technique for obtaining pure and doped hydroxyapatite nanospheres.
T2  - Processing and Application of Ceramics
T1  - Synthesis of silver doped hydroxyapatite nanospheres using Ouzo effect
VL  - 10
IS  - 3
SP  - 169
EP  - 174
DO  - 10.2298/PAC1603169P
ER  - 
@article{
author = "Prekajski, Marija D. and Jokić, Bojan M. and Kalijadis, Ana and Maletaškić, Jelena and Stanković, Nadežda and Luković, Jelena M. and Matović, Branko",
year = "2016",
abstract = "Nanoemulsion technique, based on Ouzo effect, was applied for synthesis of the pure and silver doped (2.5 and 5 mol%) calcium hydroxyapatite (HAp). After calcination at 500 degrees C fully crystallized powders were obtained. X-ray powder diffraction analysis accompanied with Rietveld refinement revealed that the synthesized powders were single-phase hydroxyapatite. Raman spectroscopy also confirmed that the synthesized powders were single-phase. The obtained HAp particles were spherical in shape and their sizes were in the nanometer range which was revealed by field emission scanning electron microscopy analysis (FESEM). The successful synthesis of the single-phase Ag doped HAp showed that nanoemulsion method is a simple technique for obtaining pure and doped hydroxyapatite nanospheres.",
journal = "Processing and Application of Ceramics",
title = "Synthesis of silver doped hydroxyapatite nanospheres using Ouzo effect",
volume = "10",
number = "3",
pages = "169-174",
doi = "10.2298/PAC1603169P"
}
Prekajski, M. D., Jokić, B. M., Kalijadis, A., Maletaškić, J., Stanković, N., Luković, J. M.,& Matović, B.. (2016). Synthesis of silver doped hydroxyapatite nanospheres using Ouzo effect. in Processing and Application of Ceramics, 10(3), 169-174.
https://doi.org/10.2298/PAC1603169P
Prekajski MD, Jokić BM, Kalijadis A, Maletaškić J, Stanković N, Luković JM, Matović B. Synthesis of silver doped hydroxyapatite nanospheres using Ouzo effect. in Processing and Application of Ceramics. 2016;10(3):169-174.
doi:10.2298/PAC1603169P .
Prekajski, Marija D., Jokić, Bojan M., Kalijadis, Ana, Maletaškić, Jelena, Stanković, Nadežda, Luković, Jelena M., Matović, Branko, "Synthesis of silver doped hydroxyapatite nanospheres using Ouzo effect" in Processing and Application of Ceramics, 10, no. 3 (2016):169-174,
https://doi.org/10.2298/PAC1603169P . .
8
7
8

Ouzo effect-New simple nanoemulsion method for synthesis of strontium hydroxyapatite nanospheres

Prekajski, Marija D.; Mirković, Miljana M.; Todorović, Bratislav Ž.; Matković, Aleksandar; Marinović-Cincović, Milena; Luković, Jelena M.; Matović, Branko

(Elsevier, 2016)

TY  - JOUR
AU  - Prekajski, Marija D.
AU  - Mirković, Miljana M.
AU  - Todorović, Bratislav Ž.
AU  - Matković, Aleksandar
AU  - Marinović-Cincović, Milena
AU  - Luković, Jelena M.
AU  - Matović, Branko
PY  - 2016
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/924
AB  - Nanoemulsion technique was applied for synthesis of carbonated strontium hydroxyapatite (CSrHAp) at room temperature. X-ray powder diffraction analysis accompanied with Rietveld refinement reviled that synthesized powder were single-phase hydroxyapatite. Fourier transform infrared (FTIR) spectroscopy showed that the CSrHAp was A-type substitution. The carbonate amount substituting the hydroxide group in the synthesized apatite was estimated, from the corresponding CO2 weight loss in the range 600-1100 degrees C. According to this empirical formula of as synthesized CHAp is S-10(PO4)(6)(OH)(0.60)(CO3)(0.70). These results were confirmed by the Rietveld refinement analysis. Using scanning electron microscopy analysis it was found that the synthesized CSrHAp particles were spherical in shape and that their sizes were in the nanometer range. Nanoemulsion strategy procedure provides a simple pathway to obtain single-phase CSrHAp. (C) 2015 Elsevier Ltd. All rights reserved.
PB  - Elsevier
T2  - Journal of the European Ceramic Society
T1  - Ouzo effect-New simple nanoemulsion method for synthesis of strontium hydroxyapatite nanospheres
VL  - 36
IS  - 5
SP  - 1293
EP  - 1298
DO  - 10.1016/j.jeurceramsoc.2015.11.045
ER  - 
@article{
author = "Prekajski, Marija D. and Mirković, Miljana M. and Todorović, Bratislav Ž. and Matković, Aleksandar and Marinović-Cincović, Milena and Luković, Jelena M. and Matović, Branko",
year = "2016",
abstract = "Nanoemulsion technique was applied for synthesis of carbonated strontium hydroxyapatite (CSrHAp) at room temperature. X-ray powder diffraction analysis accompanied with Rietveld refinement reviled that synthesized powder were single-phase hydroxyapatite. Fourier transform infrared (FTIR) spectroscopy showed that the CSrHAp was A-type substitution. The carbonate amount substituting the hydroxide group in the synthesized apatite was estimated, from the corresponding CO2 weight loss in the range 600-1100 degrees C. According to this empirical formula of as synthesized CHAp is S-10(PO4)(6)(OH)(0.60)(CO3)(0.70). These results were confirmed by the Rietveld refinement analysis. Using scanning electron microscopy analysis it was found that the synthesized CSrHAp particles were spherical in shape and that their sizes were in the nanometer range. Nanoemulsion strategy procedure provides a simple pathway to obtain single-phase CSrHAp. (C) 2015 Elsevier Ltd. All rights reserved.",
publisher = "Elsevier",
journal = "Journal of the European Ceramic Society",
title = "Ouzo effect-New simple nanoemulsion method for synthesis of strontium hydroxyapatite nanospheres",
volume = "36",
number = "5",
pages = "1293-1298",
doi = "10.1016/j.jeurceramsoc.2015.11.045"
}
Prekajski, M. D., Mirković, M. M., Todorović, B. Ž., Matković, A., Marinović-Cincović, M., Luković, J. M.,& Matović, B.. (2016). Ouzo effect-New simple nanoemulsion method for synthesis of strontium hydroxyapatite nanospheres. in Journal of the European Ceramic Society
Elsevier., 36(5), 1293-1298.
https://doi.org/10.1016/j.jeurceramsoc.2015.11.045
Prekajski MD, Mirković MM, Todorović BŽ, Matković A, Marinović-Cincović M, Luković JM, Matović B. Ouzo effect-New simple nanoemulsion method for synthesis of strontium hydroxyapatite nanospheres. in Journal of the European Ceramic Society. 2016;36(5):1293-1298.
doi:10.1016/j.jeurceramsoc.2015.11.045 .
Prekajski, Marija D., Mirković, Miljana M., Todorović, Bratislav Ž., Matković, Aleksandar, Marinović-Cincović, Milena, Luković, Jelena M., Matović, Branko, "Ouzo effect-New simple nanoemulsion method for synthesis of strontium hydroxyapatite nanospheres" in Journal of the European Ceramic Society, 36, no. 5 (2016):1293-1298,
https://doi.org/10.1016/j.jeurceramsoc.2015.11.045 . .
18
20
20

Synthesis and characterization of tungsten carbide fine powders

Luković, Jelena M.; Babić, Biljana M.; Bučevac, Dušan; Prekajski, Marija D.; Pantić, Jelena R.; Baščarević, Zvezdana D.; Matović, Branko

(2015)

TY  - JOUR
AU  - Luković, Jelena M.
AU  - Babić, Biljana M.
AU  - Bučevac, Dušan
AU  - Prekajski, Marija D.
AU  - Pantić, Jelena R.
AU  - Baščarević, Zvezdana D.
AU  - Matović, Branko
PY  - 2015
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/288
AB  - Fine tungsten carbide (WC) powder was prepared by solid state reaction between tungsten powder (W) and activated carbon cloth as a new carbon (C) source. The effect of temperature and time of heat treatment as well as the effect of C/W ratio on WC phase formation was studied. The results obtained by X-ray powder diffraction (XRPD) show that obtained powder is single WC. Microstructure and morphology was determinate by means of scanning electron microscopy (SEM). Brunauer-Emmett-Teller (BET) method was used for examining specific surface area and texture of obtained powders. It was found that WC powder was successfully synthesized in excess carbon after eight-hour heat treatment at relatively low temperature (1000 degrees C). (C) 2014 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
T2  - Ceramics International
T1  - Synthesis and characterization of tungsten carbide fine powders
VL  - 41
IS  - 1
SP  - 1271
EP  - 1277
DO  - 10.1016/j.ceramint.2014.09.057
ER  - 
@article{
author = "Luković, Jelena M. and Babić, Biljana M. and Bučevac, Dušan and Prekajski, Marija D. and Pantić, Jelena R. and Baščarević, Zvezdana D. and Matović, Branko",
year = "2015",
abstract = "Fine tungsten carbide (WC) powder was prepared by solid state reaction between tungsten powder (W) and activated carbon cloth as a new carbon (C) source. The effect of temperature and time of heat treatment as well as the effect of C/W ratio on WC phase formation was studied. The results obtained by X-ray powder diffraction (XRPD) show that obtained powder is single WC. Microstructure and morphology was determinate by means of scanning electron microscopy (SEM). Brunauer-Emmett-Teller (BET) method was used for examining specific surface area and texture of obtained powders. It was found that WC powder was successfully synthesized in excess carbon after eight-hour heat treatment at relatively low temperature (1000 degrees C). (C) 2014 Elsevier Ltd and Techna Group S.r.l. All rights reserved.",
journal = "Ceramics International",
title = "Synthesis and characterization of tungsten carbide fine powders",
volume = "41",
number = "1",
pages = "1271-1277",
doi = "10.1016/j.ceramint.2014.09.057"
}
Luković, J. M., Babić, B. M., Bučevac, D., Prekajski, M. D., Pantić, J. R., Baščarević, Z. D.,& Matović, B.. (2015). Synthesis and characterization of tungsten carbide fine powders. in Ceramics International, 41(1), 1271-1277.
https://doi.org/10.1016/j.ceramint.2014.09.057
Luković JM, Babić BM, Bučevac D, Prekajski MD, Pantić JR, Baščarević ZD, Matović B. Synthesis and characterization of tungsten carbide fine powders. in Ceramics International. 2015;41(1):1271-1277.
doi:10.1016/j.ceramint.2014.09.057 .
Luković, Jelena M., Babić, Biljana M., Bučevac, Dušan, Prekajski, Marija D., Pantić, Jelena R., Baščarević, Zvezdana D., Matović, Branko, "Synthesis and characterization of tungsten carbide fine powders" in Ceramics International, 41, no. 1 (2015):1271-1277,
https://doi.org/10.1016/j.ceramint.2014.09.057 . .
19
18
21

Ionic conductivity in single-crystal LiAlSi2O6: influence of structure on lithium mobility

Welsch, A-M.; Murawski, D.; Prekajski, Marija D.; Vulic, P.; Kremenović, Aleksandar S.

(2015)

TY  - JOUR
AU  - Welsch, A-M.
AU  - Murawski, D.
AU  - Prekajski, Marija D.
AU  - Vulic, P.
AU  - Kremenović, Aleksandar S.
PY  - 2015
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/501
AB  - With the increased interest in application of Li aluminosilicate materials as solid electrolytes, this study focuses on investigating the influence of structure on conductivity properties in single-crystal LiAlSi2O6 which is characterized by three crystal polymorphs where only structural arrangements differ while the amount of mobile carriers is identical. Two single-crystal polymorphic phases produced at ambient pressure are with tetragonal P4(1)2(1)2 symmetry and hexagonal P6(2)22 symmetry, also referred to as beta- and gamma-spodumene in the older literature. For this study, flux-grown hexagonal spodumene single-crystals were measured for conductivity parallel to the crystallographic c-axis and the results were compared with previously published results for tetragonal spodumene, both as single-crystal and polycrystalline aggregate, monoclinic spodumene (alpha-spodumene) and LiAlSi2O6 glass. The activation energy E (a) of 79.69 +/- A 0.38 kJ/mol for hexagonal phase is very similar to the other crystalline polymorphs with the same orientation. However, the sigma (DC) in hexagonal spodumene was determined to be higher than other crystalline phases and about 1.5 orders of magnitude lower than the conductivity in glass LiAlSi2O6 phase. Additionally, the densities of atomic packing were compared between phases, and the differences in the openness of the structures indicate that the more dominant effect on the Li mobility lies with the actual spatial arrangement of Li sites and the Si/Al sublattice.
T2  - Physics and Chemistry of Minerals
T1  - Ionic conductivity in single-crystal LiAlSi2O6: influence of structure on lithium mobility
VL  - 42
IS  - 5
SP  - 413
EP  - 420
DO  - 10.1007/s00269-015-0732-2
ER  - 
@article{
author = "Welsch, A-M. and Murawski, D. and Prekajski, Marija D. and Vulic, P. and Kremenović, Aleksandar S.",
year = "2015",
abstract = "With the increased interest in application of Li aluminosilicate materials as solid electrolytes, this study focuses on investigating the influence of structure on conductivity properties in single-crystal LiAlSi2O6 which is characterized by three crystal polymorphs where only structural arrangements differ while the amount of mobile carriers is identical. Two single-crystal polymorphic phases produced at ambient pressure are with tetragonal P4(1)2(1)2 symmetry and hexagonal P6(2)22 symmetry, also referred to as beta- and gamma-spodumene in the older literature. For this study, flux-grown hexagonal spodumene single-crystals were measured for conductivity parallel to the crystallographic c-axis and the results were compared with previously published results for tetragonal spodumene, both as single-crystal and polycrystalline aggregate, monoclinic spodumene (alpha-spodumene) and LiAlSi2O6 glass. The activation energy E (a) of 79.69 +/- A 0.38 kJ/mol for hexagonal phase is very similar to the other crystalline polymorphs with the same orientation. However, the sigma (DC) in hexagonal spodumene was determined to be higher than other crystalline phases and about 1.5 orders of magnitude lower than the conductivity in glass LiAlSi2O6 phase. Additionally, the densities of atomic packing were compared between phases, and the differences in the openness of the structures indicate that the more dominant effect on the Li mobility lies with the actual spatial arrangement of Li sites and the Si/Al sublattice.",
journal = "Physics and Chemistry of Minerals",
title = "Ionic conductivity in single-crystal LiAlSi2O6: influence of structure on lithium mobility",
volume = "42",
number = "5",
pages = "413-420",
doi = "10.1007/s00269-015-0732-2"
}
Welsch, A-M., Murawski, D., Prekajski, M. D., Vulic, P.,& Kremenović, A. S.. (2015). Ionic conductivity in single-crystal LiAlSi2O6: influence of structure on lithium mobility. in Physics and Chemistry of Minerals, 42(5), 413-420.
https://doi.org/10.1007/s00269-015-0732-2
Welsch A, Murawski D, Prekajski MD, Vulic P, Kremenović AS. Ionic conductivity in single-crystal LiAlSi2O6: influence of structure on lithium mobility. in Physics and Chemistry of Minerals. 2015;42(5):413-420.
doi:10.1007/s00269-015-0732-2 .
Welsch, A-M., Murawski, D., Prekajski, Marija D., Vulic, P., Kremenović, Aleksandar S., "Ionic conductivity in single-crystal LiAlSi2O6: influence of structure on lithium mobility" in Physics and Chemistry of Minerals, 42, no. 5 (2015):413-420,
https://doi.org/10.1007/s00269-015-0732-2 . .
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Synthesis and characterization of biomorphic CeO2 obtained by using egg shell membrane as template

Prekajski, Marija D.; Babić, Biljana M.; Bučevac, Dušan; Pantić, Jelena R.; Gulicovski, Jelena J.; Miljkovic, Miroslav; Matović, Branko

(2014)

TY  - JOUR
AU  - Prekajski, Marija D.
AU  - Babić, Biljana M.
AU  - Bučevac, Dušan
AU  - Pantić, Jelena R.
AU  - Gulicovski, Jelena J.
AU  - Miljkovic, Miroslav
AU  - Matović, Branko
PY  - 2014
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/2747
AB  - A new technology based on bio-templating approach was proposed in this paper. Egg-shell membrane (ESM) has been employed as a natural biotemplate. Fibrous oxide ceramics was prepared by wet impregnation of biological template with water solution of cerium nitrate. The template was derived from membranes of fresh chicken eggs. Repeated impregnation, pyrolysis and final calcination in the range of 600 to 1200 degrees C in air resulted in template burnout and consolidation of the oxide layers. At low temperatures, the obtained products had structure which corresponded to the negative replication of biological templates. Unique bio-morphic CeO2 microstructures with interwoven networks were synthesized and characterized by scanning electron microscope (SEM) and X-ray diffraction (XRD), whereas low-temperature nitrogen adsorption (BET) method was used in order to characterize porous properties.
T2  - Processing and Application of Ceramics
T1  - Synthesis and characterization of biomorphic CeO2 obtained by using egg shell membrane as template
VL  - 8
IS  - 2
SP  - 81
EP  - 85
DO  - 10.2298/PAC1402081P
ER  - 
@article{
author = "Prekajski, Marija D. and Babić, Biljana M. and Bučevac, Dušan and Pantić, Jelena R. and Gulicovski, Jelena J. and Miljkovic, Miroslav and Matović, Branko",
year = "2014",
abstract = "A new technology based on bio-templating approach was proposed in this paper. Egg-shell membrane (ESM) has been employed as a natural biotemplate. Fibrous oxide ceramics was prepared by wet impregnation of biological template with water solution of cerium nitrate. The template was derived from membranes of fresh chicken eggs. Repeated impregnation, pyrolysis and final calcination in the range of 600 to 1200 degrees C in air resulted in template burnout and consolidation of the oxide layers. At low temperatures, the obtained products had structure which corresponded to the negative replication of biological templates. Unique bio-morphic CeO2 microstructures with interwoven networks were synthesized and characterized by scanning electron microscope (SEM) and X-ray diffraction (XRD), whereas low-temperature nitrogen adsorption (BET) method was used in order to characterize porous properties.",
journal = "Processing and Application of Ceramics",
title = "Synthesis and characterization of biomorphic CeO2 obtained by using egg shell membrane as template",
volume = "8",
number = "2",
pages = "81-85",
doi = "10.2298/PAC1402081P"
}
Prekajski, M. D., Babić, B. M., Bučevac, D., Pantić, J. R., Gulicovski, J. J., Miljkovic, M.,& Matović, B.. (2014). Synthesis and characterization of biomorphic CeO2 obtained by using egg shell membrane as template. in Processing and Application of Ceramics, 8(2), 81-85.
https://doi.org/10.2298/PAC1402081P
Prekajski MD, Babić BM, Bučevac D, Pantić JR, Gulicovski JJ, Miljkovic M, Matović B. Synthesis and characterization of biomorphic CeO2 obtained by using egg shell membrane as template. in Processing and Application of Ceramics. 2014;8(2):81-85.
doi:10.2298/PAC1402081P .
Prekajski, Marija D., Babić, Biljana M., Bučevac, Dušan, Pantić, Jelena R., Gulicovski, Jelena J., Miljkovic, Miroslav, Matović, Branko, "Synthesis and characterization of biomorphic CeO2 obtained by using egg shell membrane as template" in Processing and Application of Ceramics, 8, no. 2 (2014):81-85,
https://doi.org/10.2298/PAC1402081P . .
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