TY  - CONF
AU  - Rosić, Milena
AU  - Milošević, Maja
AU  - Čebela, Maria
AU  - Dodevski, Vladimir
AU  - Lojpur, Vesna
AU  - Vasić, Marija
AU  - Zarubica, Aleksandra
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11467
AB  - The nanostructured powderwas synthesized by the glycine nitrate procedure (GNP) because it proved to be the most effective and simplest method suitable for controlling the composition and morphology of Co0.9Ho0.1MoO4. To prepare nanostructured Co0.9Ho0.1MoO4, metal nitrates, and glycine were mixed in appropriate stoichiometric ratios. For the preparation of the technologically important Co0.9Ho0.1MoO4, the combustion process has proven to be a promising method that achieves control of stoichiometry, homogeneity, and purity. The synthesized samples were examined by DTA, X-ray diffraction (XRD), Fourier transform infrared (FT-IR) spectra, Spectroscopy, Field emission scanning electron microscopy (FESEM), and nitrogen adsorption method. The acquired nanopowder showed a tendency for agglomeration, inhomogeneous microstructure, and plate-like crystals. The photocatalytic activity of the obtained Co0.9Ho0.1MoO4nanopowders was evaluated by the photocatalytic degradation of crystal violet in an aqueous solution. After photocatalytic testing and all the above-mentioned characterizations, it was shown that these nanostructured materials represent promising solutions in photocatalytic processes toward green chemistry and sustainable development.
PB  - Belgrade : Serbian Ceramic Society
C3  - Advanced Ceramics and Application XI : Program and the Book of Abstracts ; September 18-20, 2023; Belgrade
T1  - Examination and characterization of nanostructured Co0.9Ho0.1MoO4
SP  - 69
EP  - 69
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11467
ER  - 

@conference{
author = "Rosić, Milena and Milošević, Maja and Čebela, Maria and Dodevski, Vladimir and Lojpur, Vesna and Vasić, Marija and Zarubica, Aleksandra",
year = "2023",
abstract = "The nanostructured powderwas synthesized by the glycine nitrate procedure (GNP) because it proved to be the most effective and simplest method suitable for controlling the composition and morphology of Co0.9Ho0.1MoO4. To prepare nanostructured Co0.9Ho0.1MoO4, metal nitrates, and glycine were mixed in appropriate stoichiometric ratios. For the preparation of the technologically important Co0.9Ho0.1MoO4, the combustion process has proven to be a promising method that achieves control of stoichiometry, homogeneity, and purity. The synthesized samples were examined by DTA, X-ray diffraction (XRD), Fourier transform infrared (FT-IR) spectra, Spectroscopy, Field emission scanning electron microscopy (FESEM), and nitrogen adsorption method. The acquired nanopowder showed a tendency for agglomeration, inhomogeneous microstructure, and plate-like crystals. The photocatalytic activity of the obtained Co0.9Ho0.1MoO4nanopowders was evaluated by the photocatalytic degradation of crystal violet in an aqueous solution. After photocatalytic testing and all the above-mentioned characterizations, it was shown that these nanostructured materials represent promising solutions in photocatalytic processes toward green chemistry and sustainable development.",
publisher = "Belgrade : Serbian Ceramic Society",
journal = "Advanced Ceramics and Application XI : Program and the Book of Abstracts ; September 18-20, 2023; Belgrade",
title = "Examination and characterization of nanostructured Co0.9Ho0.1MoO4",
pages = "69-69",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11467"
}

Rosić, M., Milošević, M., Čebela, M., Dodevski, V., Lojpur, V., Vasić, M.,& Zarubica, A.. (2023). Examination and characterization of nanostructured Co0.9Ho0.1MoO4. in Advanced Ceramics and Application XI : Program and the Book of Abstracts ; September 18-20, 2023; Belgrade
Belgrade : Serbian Ceramic Society., 69-69.
https://hdl.handle.net/21.15107/rcub_vinar_11467

Rosić M, Milošević M, Čebela M, Dodevski V, Lojpur V, Vasić M, Zarubica A. Examination and characterization of nanostructured Co0.9Ho0.1MoO4. in Advanced Ceramics and Application XI : Program and the Book of Abstracts ; September 18-20, 2023; Belgrade. 2023;:69-69.
https://hdl.handle.net/21.15107/rcub_vinar_11467 .

Rosić, Milena, Milošević, Maja, Čebela, Maria, Dodevski, Vladimir, Lojpur, Vesna, Vasić, Marija, Zarubica, Aleksandra, "Examination and characterization of nanostructured Co0.9Ho0.1MoO4" in Advanced Ceramics and Application XI : Program and the Book of Abstracts ; September 18-20, 2023; Belgrade (2023):69-69,
https://hdl.handle.net/21.15107/rcub_vinar_11467 .

TY  - CONF
AU  - Čebela, Maria
AU  - Čakar, Uroš
AU  - Lojpur, Vesna
AU  - Milošević, Maja
AU  - Krstić, Sanja
AU  - Dodevski, Vladimir
AU  - Rosić, Milena
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11468
AB  - We studied the influence of Ag doping on the crystal structure and magnetic properties of CuO nanopowders. For the synthesis of nanoparticles of copper-silver oxides solid solutions with the composition Cu1-xAgxO (x=0.01–0.05), a self- propagating synthesis was applied at room temperature, during which a successful reaction between metal nitrate and sodium hydroxide occurred. Prepared powders were calcinated at 700 °C for 2 h. The diffraction pattern was recorded at room temperature and atmospheric pressure without of any re-heating of the sample. The Rietveld method for fitting refinement procedure was performed which showed the incorporation of Ag3+ ions in the CuO crystal lattice, where they substitute Cu2+ ions. SQUID magnetometer was used for investigation of magnetic behavior of synthesized materials in temperature interval 2–400 K. It is known that copper(II) oxide exhibits ferroelectricity driven by magnetic order at temperature as high as 230 K [1]. Multiferroic phase is present above the first order phase transition at TN1 = 213 K and exists up to the subsequent first order phase transition TN2 = 230 K [1,2]. It was shown that disorder in the form of impurities can stabilize the ferroelectric phase [2] this was our motivation to dope CuO with Ag in order to improve further its multiferroic properties. Compared with CuO, we observed small changes in magnetic properties in Cu1-xAgxO. The size and morphology of the particles were successfully determined by transmission electron microscopy (TEM) and scanning electron microscopy (SEM).
PB  - Belgrade : Institute for Multidisciplinary Research
C3  - Programme and the Book of Abstracts / 7th Conference of The Serbian Society for Ceramic Materials, 7CSCS-2023, June 14-16, 2023 Belgrade
T1  - Influence of Ag doping on the morphological and magnetic properties in CuO nanopowders
SP  - 122
EP  - 122
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11468
ER  - 

@conference{
author = "Čebela, Maria and Čakar, Uroš and Lojpur, Vesna and Milošević, Maja and Krstić, Sanja and Dodevski, Vladimir and Rosić, Milena",
year = "2023",
abstract = "We studied the influence of Ag doping on the crystal structure and magnetic properties of CuO nanopowders. For the synthesis of nanoparticles of copper-silver oxides solid solutions with the composition Cu1-xAgxO (x=0.01–0.05), a self- propagating synthesis was applied at room temperature, during which a successful reaction between metal nitrate and sodium hydroxide occurred. Prepared powders were calcinated at 700 °C for 2 h. The diffraction pattern was recorded at room temperature and atmospheric pressure without of any re-heating of the sample. The Rietveld method for fitting refinement procedure was performed which showed the incorporation of Ag3+ ions in the CuO crystal lattice, where they substitute Cu2+ ions. SQUID magnetometer was used for investigation of magnetic behavior of synthesized materials in temperature interval 2–400 K. It is known that copper(II) oxide exhibits ferroelectricity driven by magnetic order at temperature as high as 230 K [1]. Multiferroic phase is present above the first order phase transition at TN1 = 213 K and exists up to the subsequent first order phase transition TN2 = 230 K [1,2]. It was shown that disorder in the form of impurities can stabilize the ferroelectric phase [2] this was our motivation to dope CuO with Ag in order to improve further its multiferroic properties. Compared with CuO, we observed small changes in magnetic properties in Cu1-xAgxO. The size and morphology of the particles were successfully determined by transmission electron microscopy (TEM) and scanning electron microscopy (SEM).",
publisher = "Belgrade : Institute for Multidisciplinary Research",
journal = "Programme and the Book of Abstracts / 7th Conference of The Serbian Society for Ceramic Materials, 7CSCS-2023, June 14-16, 2023 Belgrade",
title = "Influence of Ag doping on the morphological and magnetic properties in CuO nanopowders",
pages = "122-122",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11468"
}

Čebela, M., Čakar, U., Lojpur, V., Milošević, M., Krstić, S., Dodevski, V.,& Rosić, M.. (2023). Influence of Ag doping on the morphological and magnetic properties in CuO nanopowders. in Programme and the Book of Abstracts / 7th Conference of The Serbian Society for Ceramic Materials, 7CSCS-2023, June 14-16, 2023 Belgrade
Belgrade : Institute for Multidisciplinary Research., 122-122.
https://hdl.handle.net/21.15107/rcub_vinar_11468

Čebela M, Čakar U, Lojpur V, Milošević M, Krstić S, Dodevski V, Rosić M. Influence of Ag doping on the morphological and magnetic properties in CuO nanopowders. in Programme and the Book of Abstracts / 7th Conference of The Serbian Society for Ceramic Materials, 7CSCS-2023, June 14-16, 2023 Belgrade. 2023;:122-122.
https://hdl.handle.net/21.15107/rcub_vinar_11468 .

Čebela, Maria, Čakar, Uroš, Lojpur, Vesna, Milošević, Maja, Krstić, Sanja, Dodevski, Vladimir, Rosić, Milena, "Influence of Ag doping on the morphological and magnetic properties in CuO nanopowders" in Programme and the Book of Abstracts / 7th Conference of The Serbian Society for Ceramic Materials, 7CSCS-2023, June 14-16, 2023 Belgrade (2023):122-122,
https://hdl.handle.net/21.15107/rcub_vinar_11468 .

TY  - CONF
AU  - Rosić, Milena
AU  - Milošević, Maja
AU  - Čebela, Maria
AU  - Dodevski, Vladimir
AU  - Lojpur, Vesna
AU  - Ljupković, Radomir
AU  - Zarubica, Aleksandra
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11490
AB  - Co0.9Ho0.1MoO4 nanopowders were obtained by applying glycine nitrate procedure (GNP). The synthesized samples were investigated by DTA, X-ray diffraction (XRD), Fourier transform infrared (FT-IR) spectra, Spectroscopy, Field emission scanning electron microscopy (FESEM), and nitrogen adsorption method. The photocatalytic activity of acquired Co0.9Ho0.1MoO4 nanopowders was estimated by the photocatalytic degradation of crystal violet in aqueous solution. A simple and effective method for controlling the composition and morphology of Co0.9Ho0.1MoO4 is presented in this paper, as well as a potentially new approach in the methodology of inorganic synthesis. During photocatalytic testing nanostructured material Co0.9Ho0.1MoO4 indicated the possibility of a promising solution in photocatalytic processes towards green chemistry and sustainable development.
PB  - Belgrade : University of Belgrade, Institute for Multidisciplinary Research
C3  - Programme and the Book of Abstracts / 7th Conference of The Serbian Society for Ceramic Materials, 7CSCS-2023, June 14-16, 2023 Belgrade
T1  - Synthesis, characterization and photocatalytic examination of Co0.9Ho0.1MoO4 nanopowders
SP  - 81
EP  - 81
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11490
ER  - 

@conference{
author = "Rosić, Milena and Milošević, Maja and Čebela, Maria and Dodevski, Vladimir and Lojpur, Vesna and Ljupković, Radomir and Zarubica, Aleksandra",
year = "2023",
abstract = "Co0.9Ho0.1MoO4 nanopowders were obtained by applying glycine nitrate procedure (GNP). The synthesized samples were investigated by DTA, X-ray diffraction (XRD), Fourier transform infrared (FT-IR) spectra, Spectroscopy, Field emission scanning electron microscopy (FESEM), and nitrogen adsorption method. The photocatalytic activity of acquired Co0.9Ho0.1MoO4 nanopowders was estimated by the photocatalytic degradation of crystal violet in aqueous solution. A simple and effective method for controlling the composition and morphology of Co0.9Ho0.1MoO4 is presented in this paper, as well as a potentially new approach in the methodology of inorganic synthesis. During photocatalytic testing nanostructured material Co0.9Ho0.1MoO4 indicated the possibility of a promising solution in photocatalytic processes towards green chemistry and sustainable development.",
publisher = "Belgrade : University of Belgrade, Institute for Multidisciplinary Research",
journal = "Programme and the Book of Abstracts / 7th Conference of The Serbian Society for Ceramic Materials, 7CSCS-2023, June 14-16, 2023 Belgrade",
title = "Synthesis, characterization and photocatalytic examination of Co0.9Ho0.1MoO4 nanopowders",
pages = "81-81",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11490"
}

Rosić, M., Milošević, M., Čebela, M., Dodevski, V., Lojpur, V., Ljupković, R.,& Zarubica, A.. (2023). Synthesis, characterization and photocatalytic examination of Co0.9Ho0.1MoO4 nanopowders. in Programme and the Book of Abstracts / 7th Conference of The Serbian Society for Ceramic Materials, 7CSCS-2023, June 14-16, 2023 Belgrade
Belgrade : University of Belgrade, Institute for Multidisciplinary Research., 81-81.
https://hdl.handle.net/21.15107/rcub_vinar_11490

Rosić M, Milošević M, Čebela M, Dodevski V, Lojpur V, Ljupković R, Zarubica A. Synthesis, characterization and photocatalytic examination of Co0.9Ho0.1MoO4 nanopowders. in Programme and the Book of Abstracts / 7th Conference of The Serbian Society for Ceramic Materials, 7CSCS-2023, June 14-16, 2023 Belgrade. 2023;:81-81.
https://hdl.handle.net/21.15107/rcub_vinar_11490 .

Rosić, Milena, Milošević, Maja, Čebela, Maria, Dodevski, Vladimir, Lojpur, Vesna, Ljupković, Radomir, Zarubica, Aleksandra, "Synthesis, characterization and photocatalytic examination of Co0.9Ho0.1MoO4 nanopowders" in Programme and the Book of Abstracts / 7th Conference of The Serbian Society for Ceramic Materials, 7CSCS-2023, June 14-16, 2023 Belgrade (2023):81-81,
https://hdl.handle.net/21.15107/rcub_vinar_11490 .

TY  - CONF
AU  - Rosić, Milena
AU  - Milošević, M.
AU  - Čebela, Maria
AU  - Dodevski, Vladimir
AU  - Lojpur, Vesna
AU  - Ljupković, Radomir
AU  - Zarubica, Aleksandra
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11750
AB  - Nanometric size Co0.9Ho0.1MoO4 powder particles were obtained by applying glycine nitrate procedure (GNP). Powder properties have been studied by DTA, X-ray diffraction (XRD), Fourier transform infrared (FT-IR) spectra, Spectroscopy, Field emission scanning electron microscopy (FESEM), and nitrogen adsorption method. The photocatalytic activity of acquiring Co0.9Ho0.1MoO4 nanopowders was estimated by the photocatalytic degradation of crystal violet in an aqueous solution. We present a simple and effective method for controlling the composition and morphology of Co0.9Ho0.1MoO4, as well as a possible new approach in inorganic synthesis methodology. During photocatalytic testing, the studied nanoparticle powder indicated a potentially promising solution in photocatalytic processes toward green chemistry and sustainable development.
PB  - Society of Chemists and Technologists of Macedonia
C3  - 26th Congress of the Society of Chemists and Technologists of Macedonia : the book of abstracts; September 20-23, Ohrid, Macedonia
T1  - Investigation of Co0.9Ho0.1MoO4 Nanopowders Obtained by Glycine Nitrate Procedure
SP  - 22
EP  - 22
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11750
ER  - 

@conference{
author = "Rosić, Milena and Milošević, M. and Čebela, Maria and Dodevski, Vladimir and Lojpur, Vesna and Ljupković, Radomir and Zarubica, Aleksandra",
year = "2023",
abstract = "Nanometric size Co0.9Ho0.1MoO4 powder particles were obtained by applying glycine nitrate procedure (GNP). Powder properties have been studied by DTA, X-ray diffraction (XRD), Fourier transform infrared (FT-IR) spectra, Spectroscopy, Field emission scanning electron microscopy (FESEM), and nitrogen adsorption method. The photocatalytic activity of acquiring Co0.9Ho0.1MoO4 nanopowders was estimated by the photocatalytic degradation of crystal violet in an aqueous solution. We present a simple and effective method for controlling the composition and morphology of Co0.9Ho0.1MoO4, as well as a possible new approach in inorganic synthesis methodology. During photocatalytic testing, the studied nanoparticle powder indicated a potentially promising solution in photocatalytic processes toward green chemistry and sustainable development.",
publisher = "Society of Chemists and Technologists of Macedonia",
journal = "26th Congress of the Society of Chemists and Technologists of Macedonia : the book of abstracts; September 20-23, Ohrid, Macedonia",
title = "Investigation of Co0.9Ho0.1MoO4 Nanopowders Obtained by Glycine Nitrate Procedure",
pages = "22-22",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11750"
}

Rosić, M., Milošević, M., Čebela, M., Dodevski, V., Lojpur, V., Ljupković, R.,& Zarubica, A.. (2023). Investigation of Co0.9Ho0.1MoO4 Nanopowders Obtained by Glycine Nitrate Procedure. in 26th Congress of the Society of Chemists and Technologists of Macedonia : the book of abstracts; September 20-23, Ohrid, Macedonia
Society of Chemists and Technologists of Macedonia., 22-22.
https://hdl.handle.net/21.15107/rcub_vinar_11750

Rosić M, Milošević M, Čebela M, Dodevski V, Lojpur V, Ljupković R, Zarubica A. Investigation of Co0.9Ho0.1MoO4 Nanopowders Obtained by Glycine Nitrate Procedure. in 26th Congress of the Society of Chemists and Technologists of Macedonia : the book of abstracts; September 20-23, Ohrid, Macedonia. 2023;:22-22.
https://hdl.handle.net/21.15107/rcub_vinar_11750 .

Rosić, Milena, Milošević, M., Čebela, Maria, Dodevski, Vladimir, Lojpur, Vesna, Ljupković, Radomir, Zarubica, Aleksandra, "Investigation of Co0.9Ho0.1MoO4 Nanopowders Obtained by Glycine Nitrate Procedure" in 26th Congress of the Society of Chemists and Technologists of Macedonia : the book of abstracts; September 20-23, Ohrid, Macedonia (2023):22-22,
https://hdl.handle.net/21.15107/rcub_vinar_11750 .

TY  - CONF
AU  - Čebela, Maria
AU  - Reddy, Priyanka
AU  - Čakar, Uroš
AU  - Labus, Nebojša
AU  - Lojpur, Vesna
AU  - Dodevski, Vladimir
AU  - Rosić, Milena
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11475
AB  - Iron(III) titanates are attracting rapidly growing interest as very promising candidates for applications in solar energy and optoelectronics because they contain earth-rich elements. Potentially, Fe2TiO5 is a thermoelectric material. We used a Vibrating Sample Magnetometer and Superconducting Quantum Interferometer Device Magnetometer to study the magnetic properties of the pseudobrookite material Fe2TiO5. The material was synthesized by the sol-gel method. The structural parameters of the synthesized samples were investigated by X-ray analysis. The diffractogram was refined with the help of Rietveld refinement on FullProf Suite. Temperature-dependent ZFC and FC magnetization was measured on SQUID for lower temperature down to 2 K and on VSM for higher temperatures up to 1000 K. A transition was observed at 815 K with a separation between the ZFC and FC curves. Parallelly the bifurcation in the isothermal hysteresis measurements indicates that the system exhibits dominant canted AFM (or weak FM) with a small amount of spin glass. The small value of the moment was also pointing towards the canted AFM ordering. The size and morphology of the particles was determined using transmission electron microscopy (TEM) and scanning electron microscopy (SEM).
PB  - Belgrade : Institute for Multidisciplinary Research
C3  - Programme and the Book of Abstracts / 7th Conference of The Serbian Society for Ceramic Materials, 7CSCS-2023, June 14-16, 2023 Belgrade, Serbia
T1  - Synthesis, structure and magnetic properties of Fe2TiO5
SP  - 124
EP  - 124
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11475
ER  - 

@conference{
author = "Čebela, Maria and Reddy, Priyanka and Čakar, Uroš and Labus, Nebojša and Lojpur, Vesna and Dodevski, Vladimir and Rosić, Milena",
year = "2023",
abstract = "Iron(III) titanates are attracting rapidly growing interest as very promising candidates for applications in solar energy and optoelectronics because they contain earth-rich elements. Potentially, Fe2TiO5 is a thermoelectric material. We used a Vibrating Sample Magnetometer and Superconducting Quantum Interferometer Device Magnetometer to study the magnetic properties of the pseudobrookite material Fe2TiO5. The material was synthesized by the sol-gel method. The structural parameters of the synthesized samples were investigated by X-ray analysis. The diffractogram was refined with the help of Rietveld refinement on FullProf Suite. Temperature-dependent ZFC and FC magnetization was measured on SQUID for lower temperature down to 2 K and on VSM for higher temperatures up to 1000 K. A transition was observed at 815 K with a separation between the ZFC and FC curves. Parallelly the bifurcation in the isothermal hysteresis measurements indicates that the system exhibits dominant canted AFM (or weak FM) with a small amount of spin glass. The small value of the moment was also pointing towards the canted AFM ordering. The size and morphology of the particles was determined using transmission electron microscopy (TEM) and scanning electron microscopy (SEM).",
publisher = "Belgrade : Institute for Multidisciplinary Research",
journal = "Programme and the Book of Abstracts / 7th Conference of The Serbian Society for Ceramic Materials, 7CSCS-2023, June 14-16, 2023 Belgrade, Serbia",
title = "Synthesis, structure and magnetic properties of Fe2TiO5",
pages = "124-124",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11475"
}

Čebela, M., Reddy, P., Čakar, U., Labus, N., Lojpur, V., Dodevski, V.,& Rosić, M.. (2023). Synthesis, structure and magnetic properties of Fe2TiO5. in Programme and the Book of Abstracts / 7th Conference of The Serbian Society for Ceramic Materials, 7CSCS-2023, June 14-16, 2023 Belgrade, Serbia
Belgrade : Institute for Multidisciplinary Research., 124-124.
https://hdl.handle.net/21.15107/rcub_vinar_11475

Čebela M, Reddy P, Čakar U, Labus N, Lojpur V, Dodevski V, Rosić M. Synthesis, structure and magnetic properties of Fe2TiO5. in Programme and the Book of Abstracts / 7th Conference of The Serbian Society for Ceramic Materials, 7CSCS-2023, June 14-16, 2023 Belgrade, Serbia. 2023;:124-124.
https://hdl.handle.net/21.15107/rcub_vinar_11475 .

Čebela, Maria, Reddy, Priyanka, Čakar, Uroš, Labus, Nebojša, Lojpur, Vesna, Dodevski, Vladimir, Rosić, Milena, "Synthesis, structure and magnetic properties of Fe2TiO5" in Programme and the Book of Abstracts / 7th Conference of The Serbian Society for Ceramic Materials, 7CSCS-2023, June 14-16, 2023 Belgrade, Serbia (2023):124-124,
https://hdl.handle.net/21.15107/rcub_vinar_11475 .

TY  - CONF
AU  - Stamenković, Tijana
AU  - Ranđelović, Marjan
AU  - Čebela, Maria
AU  - Vuković, Marina
AU  - Dinić, Ivana
AU  - Mančić, Lidija
AU  - Lojpur, Vesna
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11484
AB  - The aim of this research was to investigate for the first-time photocatalytic degradation of methylene blue over SrGd2O4 powders co-doped with constant Er3+ (0.5 at.%) and different Yb3+ (1, 2.5 and 5 at.%) concentrations. Samples were successfully prepared via sol-gel assisted combustion method. They exhibit photoluminescence properties which are manifested as red emission at 661 nm (4F9/2 → 4I15/2) and two green emissions at 551 and 523 nm (4S3/2 → 4I15/2 and 2H11/2 → 4I15/2). X-ray Powder Diffraction pattern proved that all samples crystallize as a pure orthorhombic phase. Scanning electron microscopy was used for morphology characterization and it revealed the existence of porous agglomerated round-shaped particles. Energy dispersive X-ray spectroscopy showed the presence of dopant ions and even distribution of all constituting elements. To calculate the energy band gap, UV-VIS diffuse reflectance spectroscopy was performed and a value of 4.3 eV was obtained, as well as the four additional values from the bands at lower energies. Photocatalytic degradation of methylene blue was monitored using UV-VIS absorption spectroscopy. Obtained results were promising since after 4 h of exposure to the simulating Sun irradiation, more than 50% of the starting dye concentration was mineralized.
PB  - Belgrade : Institute for Multidisciplinary Research
C3  - Programme and the Book of Abstracts / 7th Conference of The Serbian Society for Ceramic Materials, 7CSCS-2023, June 14-16, 2023 Belgrade, Serbia
T1  - Characterization and photocatalytic activity of newly synthesized Er and Yb doped SrGd2O4 nanophosphorus
SP  - 107
EP  - 107
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11484
ER  - 

@conference{
author = "Stamenković, Tijana and Ranđelović, Marjan and Čebela, Maria and Vuković, Marina and Dinić, Ivana and Mančić, Lidija and Lojpur, Vesna",
year = "2023",
abstract = "The aim of this research was to investigate for the first-time photocatalytic degradation of methylene blue over SrGd2O4 powders co-doped with constant Er3+ (0.5 at.%) and different Yb3+ (1, 2.5 and 5 at.%) concentrations. Samples were successfully prepared via sol-gel assisted combustion method. They exhibit photoluminescence properties which are manifested as red emission at 661 nm (4F9/2 → 4I15/2) and two green emissions at 551 and 523 nm (4S3/2 → 4I15/2 and 2H11/2 → 4I15/2). X-ray Powder Diffraction pattern proved that all samples crystallize as a pure orthorhombic phase. Scanning electron microscopy was used for morphology characterization and it revealed the existence of porous agglomerated round-shaped particles. Energy dispersive X-ray spectroscopy showed the presence of dopant ions and even distribution of all constituting elements. To calculate the energy band gap, UV-VIS diffuse reflectance spectroscopy was performed and a value of 4.3 eV was obtained, as well as the four additional values from the bands at lower energies. Photocatalytic degradation of methylene blue was monitored using UV-VIS absorption spectroscopy. Obtained results were promising since after 4 h of exposure to the simulating Sun irradiation, more than 50% of the starting dye concentration was mineralized.",
publisher = "Belgrade : Institute for Multidisciplinary Research",
journal = "Programme and the Book of Abstracts / 7th Conference of The Serbian Society for Ceramic Materials, 7CSCS-2023, June 14-16, 2023 Belgrade, Serbia",
title = "Characterization and photocatalytic activity of newly synthesized Er and Yb doped SrGd2O4 nanophosphorus",
pages = "107-107",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11484"
}

Stamenković, T., Ranđelović, M., Čebela, M., Vuković, M., Dinić, I., Mančić, L.,& Lojpur, V.. (2023). Characterization and photocatalytic activity of newly synthesized Er and Yb doped SrGd2O4 nanophosphorus. in Programme and the Book of Abstracts / 7th Conference of The Serbian Society for Ceramic Materials, 7CSCS-2023, June 14-16, 2023 Belgrade, Serbia
Belgrade : Institute for Multidisciplinary Research., 107-107.
https://hdl.handle.net/21.15107/rcub_vinar_11484

Stamenković T, Ranđelović M, Čebela M, Vuković M, Dinić I, Mančić L, Lojpur V. Characterization and photocatalytic activity of newly synthesized Er and Yb doped SrGd2O4 nanophosphorus. in Programme and the Book of Abstracts / 7th Conference of The Serbian Society for Ceramic Materials, 7CSCS-2023, June 14-16, 2023 Belgrade, Serbia. 2023;:107-107.
https://hdl.handle.net/21.15107/rcub_vinar_11484 .

Stamenković, Tijana, Ranđelović, Marjan, Čebela, Maria, Vuković, Marina, Dinić, Ivana, Mančić, Lidija, Lojpur, Vesna, "Characterization and photocatalytic activity of newly synthesized Er and Yb doped SrGd2O4 nanophosphorus" in Programme and the Book of Abstracts / 7th Conference of The Serbian Society for Ceramic Materials, 7CSCS-2023, June 14-16, 2023 Belgrade, Serbia (2023):107-107,
https://hdl.handle.net/21.15107/rcub_vinar_11484 .

TY  - JOUR
AU  - Stamenković, Tijana
AU  - Ranđelović, Marjan
AU  - Lojpur, Vesna
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12840
AB  - Cilj ovog istraživanja je da se po prvi put ispita fotokatalitička razgradnja metilen plavog na prahovima SrGd2O4 dopiranim istom koncentracijom Er3+ (0.5 at%) i različitim koncentracijama Yb3+ (1, 2.5 and 5 at%). Difrakcija rendgenskim zracima potvrdila je da uzorci kristališu u čistoj ortorombičnoj fazi. Skenirajuća elektronska mikroskopija je korišćena za ispitivanje morfologije i pokazala je da postojanje poroznih aglomerata sačinjenih od manjih čestica sferičnog oblika. Energetski disperzivna spektroskopija pokazala je prisustvo dopanata kao i uniformnu raspodelu svih elemenata u materijalu. Za izračunavanje energetskog procepa korišćena je metoda UV-VIS difuzione refleksione spektroskopije, kojom je dobijena vrednost od 4,3 eV, kao i još četri dodatne vrednosti na nižim energijama. Fotokatalitička razgradnja metilen plavog praćena je metodom UV-VIS apsorpcione spektroskopije. Dobijeni su zadovoljavajući rezultati jer je pri određenim reakcionim uslovima nakon eksperimenta u trajanju od 4 h pod dejstvom simulirane sunčeve svetlosti, potvrđena razgrađnja više od 50% od ukupne početne koncentracije boje.
T2  - Advanced Technologies
T1  - Investigation of the photocatalytic properties of Er3+ i Yb3+ doped strontium gadolinium oxide nanopowder
VL  - 12
IS  - 2
SP  - 5
EP  - 11
DO  - 10.5937/savteh2302004S
ER  - 

@article{
author = "Stamenković, Tijana and Ranđelović, Marjan and Lojpur, Vesna",
year = "2023",
abstract = "Cilj ovog istraživanja je da se po prvi put ispita fotokatalitička razgradnja metilen plavog na prahovima SrGd2O4 dopiranim istom koncentracijom Er3+ (0.5 at%) i različitim koncentracijama Yb3+ (1, 2.5 and 5 at%). Difrakcija rendgenskim zracima potvrdila je da uzorci kristališu u čistoj ortorombičnoj fazi. Skenirajuća elektronska mikroskopija je korišćena za ispitivanje morfologije i pokazala je da postojanje poroznih aglomerata sačinjenih od manjih čestica sferičnog oblika. Energetski disperzivna spektroskopija pokazala je prisustvo dopanata kao i uniformnu raspodelu svih elemenata u materijalu. Za izračunavanje energetskog procepa korišćena je metoda UV-VIS difuzione refleksione spektroskopije, kojom je dobijena vrednost od 4,3 eV, kao i još četri dodatne vrednosti na nižim energijama. Fotokatalitička razgradnja metilen plavog praćena je metodom UV-VIS apsorpcione spektroskopije. Dobijeni su zadovoljavajući rezultati jer je pri određenim reakcionim uslovima nakon eksperimenta u trajanju od 4 h pod dejstvom simulirane sunčeve svetlosti, potvrđena razgrađnja više od 50% od ukupne početne koncentracije boje.",
journal = "Advanced Technologies",
title = "Investigation of the photocatalytic properties of Er3+ i Yb3+ doped strontium gadolinium oxide nanopowder",
volume = "12",
number = "2",
pages = "5-11",
doi = "10.5937/savteh2302004S"
}

Stamenković, T., Ranđelović, M.,& Lojpur, V.. (2023). Investigation of the photocatalytic properties of Er3+ i Yb3+ doped strontium gadolinium oxide nanopowder. in Advanced Technologies, 12(2), 5-11.
https://doi.org/10.5937/savteh2302004S

Stamenković T, Ranđelović M, Lojpur V. Investigation of the photocatalytic properties of Er3+ i Yb3+ doped strontium gadolinium oxide nanopowder. in Advanced Technologies. 2023;12(2):5-11.
doi:10.5937/savteh2302004S .

Stamenković, Tijana, Ranđelović, Marjan, Lojpur, Vesna, "Investigation of the photocatalytic properties of Er3+ i Yb3+ doped strontium gadolinium oxide nanopowder" in Advanced Technologies, 12, no. 2 (2023):5-11,
https://doi.org/10.5937/savteh2302004S . .

TY  - JOUR
AU  - Luković, Milentije
AU  - Spasojević-Savković, Milica
AU  - Kosić, Olivera
AU  - Barudžija, Tanja
AU  - Lojpur, Vesna
AU  - Maričić, Aleksa
AU  - Spasojević, Miroslav
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12841
AB  - A mixture of 50.0 wt% Fe, 47.0 wt% BaTiO3, and 3.0 wt% TiO2 powders is milled and then pressed and sintered. Samples sintered from ground powders have a structure consisting of plates. They consist of the crystalline phase BaFe12O19 and crystalline and amorphous phases Fe, BaTiO3, and TiO2. Samples sintered from powders ground for more than 180 min are compact and composed of BaFe12O19 crystals embedded in an amorphous matrix consisting of amorphous BaTiO3 and TiO2 phases. Magnetization of a sample ground for 220 min gradually decreases with increasing temperature up to 440°C. This decrease result from the transition of ordered domains into chaotically directed domains. Above 440°C, the thermal energy is sufficiently large to destroy ordered paramagnetic ferromagnetic and weakly ferromagnetic domains. During sample cooling in the absence of an external magnetic field, the temperature dependence of magnetization is the same as that obtained during heating in the magnetic field. However, during the sample cooling in the magnetic field, substantially higher values of magnetization are obtained. Considerably higher magnetization of the cooled sample remains even after switching off the external magnetic field. The sintered sample, previously pressed in the magnetic field, has a higher dielectric constant than the sample pressed in the absence of the magnetic field. The dielectric constant decreases with increasing frequency.
T2  - Science of Sintering
T1  - Influence of grinding, pressing and sintering of the powder 50.0 wt% Fe, 47.0 wt% BaTiO3 and 3.0 wt% TiO2 on morphology, microstructure, magnetic and electric properties
IS  - InPress
SP  - 67
EP  - 67
DO  - 10.2298/SOS230915067L
ER  - 

@article{
author = "Luković, Milentije and Spasojević-Savković, Milica and Kosić, Olivera and Barudžija, Tanja and Lojpur, Vesna and Maričić, Aleksa and Spasojević, Miroslav",
year = "2023",
abstract = "A mixture of 50.0 wt% Fe, 47.0 wt% BaTiO3, and 3.0 wt% TiO2 powders is milled and then pressed and sintered. Samples sintered from ground powders have a structure consisting of plates. They consist of the crystalline phase BaFe12O19 and crystalline and amorphous phases Fe, BaTiO3, and TiO2. Samples sintered from powders ground for more than 180 min are compact and composed of BaFe12O19 crystals embedded in an amorphous matrix consisting of amorphous BaTiO3 and TiO2 phases. Magnetization of a sample ground for 220 min gradually decreases with increasing temperature up to 440°C. This decrease result from the transition of ordered domains into chaotically directed domains. Above 440°C, the thermal energy is sufficiently large to destroy ordered paramagnetic ferromagnetic and weakly ferromagnetic domains. During sample cooling in the absence of an external magnetic field, the temperature dependence of magnetization is the same as that obtained during heating in the magnetic field. However, during the sample cooling in the magnetic field, substantially higher values of magnetization are obtained. Considerably higher magnetization of the cooled sample remains even after switching off the external magnetic field. The sintered sample, previously pressed in the magnetic field, has a higher dielectric constant than the sample pressed in the absence of the magnetic field. The dielectric constant decreases with increasing frequency.",
journal = "Science of Sintering",
title = "Influence of grinding, pressing and sintering of the powder 50.0 wt% Fe, 47.0 wt% BaTiO3 and 3.0 wt% TiO2 on morphology, microstructure, magnetic and electric properties",
number = "InPress",
pages = "67-67",
doi = "10.2298/SOS230915067L"
}

Luković, M., Spasojević-Savković, M., Kosić, O., Barudžija, T., Lojpur, V., Maričić, A.,& Spasojević, M.. (2023). Influence of grinding, pressing and sintering of the powder 50.0 wt% Fe, 47.0 wt% BaTiO3 and 3.0 wt% TiO2 on morphology, microstructure, magnetic and electric properties. in Science of Sintering(InPress), 67-67.
https://doi.org/10.2298/SOS230915067L

Luković M, Spasojević-Savković M, Kosić O, Barudžija T, Lojpur V, Maričić A, Spasojević M. Influence of grinding, pressing and sintering of the powder 50.0 wt% Fe, 47.0 wt% BaTiO3 and 3.0 wt% TiO2 on morphology, microstructure, magnetic and electric properties. in Science of Sintering. 2023;(InPress):67-67.
doi:10.2298/SOS230915067L .

Luković, Milentije, Spasojević-Savković, Milica, Kosić, Olivera, Barudžija, Tanja, Lojpur, Vesna, Maričić, Aleksa, Spasojević, Miroslav, "Influence of grinding, pressing and sintering of the powder 50.0 wt% Fe, 47.0 wt% BaTiO3 and 3.0 wt% TiO2 on morphology, microstructure, magnetic and electric properties" in Science of Sintering, no. InPress (2023):67-67,
https://doi.org/10.2298/SOS230915067L . .

TY  - JOUR
AU  - Stamenković, Tijana
AU  - Pjević, Dejan J.
AU  - Krstić, Jugoslav
AU  - Popović, Maja
AU  - Rajić, Vladimir
AU  - Lojpur, Vesna
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10684
AB  - A set of samples of SrGd2O4 doped with Sm3+ and Dy3+with different concentrations was prepared via glycine-assisted combustion synthesis. All of the diffraction peaks are related to the pure orthorhombic lattice SrGd2O4, according to X-ray Powder Diffraction investigation. The Energy Dispersive X-ray Spectroscopy chemical characterization revealed that the structure included all desired elements. Field Emission Scanning Electron Microscopy was used to capture the morphology, which showed porous aggregated particles consisting of roughly 50 nm-sized spherical particles. The Mercury Intrusion Porosimetry was used to establish where voids originated, and the results showed that samples have a real permanent 3D pore structure. X-ray Photoelectron Spectroscopy verified the successful incorporation of Dy3+ and Sm3+ ions in the matrix. Down-conversion luminescence spectra were recorded and typical emission transitions were found for either Sm3+ (4G5/2→6H5/2, 4G5/2→6H7/2, 4G5/2→6H9/2) or Dy3+ (4F9/2→6H15/2 and 4F9/2→6H13/2) ions. Calculation of the energy band gap using UV-VIS Diffuse Reflectance Spectroscopy yielded values of 4.3 eV for both doped samples. Using UV-VIS Absorption Spectroscopy, the photocatalytic degradation process was observed. After 4 h of simulating Sun exposure, an analysis of the photocatalytic properties revealed that approximately 50% of the Rhodamine B had been mineralized.
T2  - Surfaces and Interfaces
T1  - Characterization and photocatalytic application of SrGd2O4 doped with rare earth Sm3+ and Dy3+ ions
VL  - 37
SP  - 102755
DO  - 10.1016/j.surfin.2023.102755
ER  - 

@article{
author = "Stamenković, Tijana and Pjević, Dejan J. and Krstić, Jugoslav and Popović, Maja and Rajić, Vladimir and Lojpur, Vesna",
year = "2023",
abstract = "A set of samples of SrGd2O4 doped with Sm3+ and Dy3+with different concentrations was prepared via glycine-assisted combustion synthesis. All of the diffraction peaks are related to the pure orthorhombic lattice SrGd2O4, according to X-ray Powder Diffraction investigation. The Energy Dispersive X-ray Spectroscopy chemical characterization revealed that the structure included all desired elements. Field Emission Scanning Electron Microscopy was used to capture the morphology, which showed porous aggregated particles consisting of roughly 50 nm-sized spherical particles. The Mercury Intrusion Porosimetry was used to establish where voids originated, and the results showed that samples have a real permanent 3D pore structure. X-ray Photoelectron Spectroscopy verified the successful incorporation of Dy3+ and Sm3+ ions in the matrix. Down-conversion luminescence spectra were recorded and typical emission transitions were found for either Sm3+ (4G5/2→6H5/2, 4G5/2→6H7/2, 4G5/2→6H9/2) or Dy3+ (4F9/2→6H15/2 and 4F9/2→6H13/2) ions. Calculation of the energy band gap using UV-VIS Diffuse Reflectance Spectroscopy yielded values of 4.3 eV for both doped samples. Using UV-VIS Absorption Spectroscopy, the photocatalytic degradation process was observed. After 4 h of simulating Sun exposure, an analysis of the photocatalytic properties revealed that approximately 50% of the Rhodamine B had been mineralized.",
journal = "Surfaces and Interfaces",
title = "Characterization and photocatalytic application of SrGd2O4 doped with rare earth Sm3+ and Dy3+ ions",
volume = "37",
pages = "102755",
doi = "10.1016/j.surfin.2023.102755"
}

Stamenković, T., Pjević, D. J., Krstić, J., Popović, M., Rajić, V.,& Lojpur, V.. (2023). Characterization and photocatalytic application of SrGd2O4 doped with rare earth Sm3+ and Dy3+ ions. in Surfaces and Interfaces, 37, 102755.
https://doi.org/10.1016/j.surfin.2023.102755

Stamenković T, Pjević DJ, Krstić J, Popović M, Rajić V, Lojpur V. Characterization and photocatalytic application of SrGd2O4 doped with rare earth Sm3+ and Dy3+ ions. in Surfaces and Interfaces. 2023;37:102755.
doi:10.1016/j.surfin.2023.102755 .

Stamenković, Tijana, Pjević, Dejan J., Krstić, Jugoslav, Popović, Maja, Rajić, Vladimir, Lojpur, Vesna, "Characterization and photocatalytic application of SrGd2O4 doped with rare earth Sm3+ and Dy3+ ions" in Surfaces and Interfaces, 37 (2023):102755,
https://doi.org/10.1016/j.surfin.2023.102755 . .

TY  - CONF
AU  - Stamenković, Tijana
AU  - Radmilović, Nadežda
AU  - Dinić, Ivana
AU  - Vuković, Marina
AU  - Barudžija, Tanja
AU  - Čebela, Maria
AU  - Lojpur, Vesna
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11483
AB  - In this investigation, samples of SrGd2O4 doped with different Yb3+ (2, 4, 6 at.%) ions and constant Ho3+ (1 at.%) and Bi3+ (2 at.%) concentrations were prepared. The sol-gel method with glycine as a fuel and citric acid as a chelator was chosen for sample preparation. All samples were heated in the furnace for 1.5 h at 500 °C and then thermally treated for 2.5 h at 1000 °C. The pure orthorhombic lattice of SrGd2O4, space group Pnma, was revealed by X-ray diffraction (XRD) (JCPDS Card No.:01-072-6387). Transmission electron microscopy (TEM) discovered agglomerated clusters of spherical particles measuring around 150 nm in size. Including Bi3+ ions into the structure influenced the morphology of the sample showing fine packing of pyramidal-shaped nanoparticles. The uniform distribution of constitutive elements in the samples was confirmed by energy dispersive spectroscopy (EDS). Up-conversion emission properties were evaluated from photoluminescent emission spectra and intensity dependence on excitation power after excitation at 976 nm. Dominant green (550 nm), red (671 nm), and infrared (758 nm) 5F4, 5S2 → 5I8, 5F5 → 5I8, 5F4, 5S2 → 5I7 transition emissions, respectively, are detected in all samples. The sample co-doped with Bi3+ showed the most intense photoluminescent emission.
PB  - Belgrade : Institute for Multidisciplinary Research
C3  - Programme and the Book of Abstracts / 7th Conference of The Serbian Society for Ceramic Materials, 7CSCS-2023, June 14-16, 2023 Belgrade, Serbia
T1  - Enhancement of up-conversion luminescent characteristics of Yb3+/Ho3+ co-doped Bi3+ based SrGd2O4 nanoparticles
SP  - 113
EP  - 114
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11483
ER  - 

@conference{
author = "Stamenković, Tijana and Radmilović, Nadežda and Dinić, Ivana and Vuković, Marina and Barudžija, Tanja and Čebela, Maria and Lojpur, Vesna",
year = "2023",
abstract = "In this investigation, samples of SrGd2O4 doped with different Yb3+ (2, 4, 6 at.%) ions and constant Ho3+ (1 at.%) and Bi3+ (2 at.%) concentrations were prepared. The sol-gel method with glycine as a fuel and citric acid as a chelator was chosen for sample preparation. All samples were heated in the furnace for 1.5 h at 500 °C and then thermally treated for 2.5 h at 1000 °C. The pure orthorhombic lattice of SrGd2O4, space group Pnma, was revealed by X-ray diffraction (XRD) (JCPDS Card No.:01-072-6387). Transmission electron microscopy (TEM) discovered agglomerated clusters of spherical particles measuring around 150 nm in size. Including Bi3+ ions into the structure influenced the morphology of the sample showing fine packing of pyramidal-shaped nanoparticles. The uniform distribution of constitutive elements in the samples was confirmed by energy dispersive spectroscopy (EDS). Up-conversion emission properties were evaluated from photoluminescent emission spectra and intensity dependence on excitation power after excitation at 976 nm. Dominant green (550 nm), red (671 nm), and infrared (758 nm) 5F4, 5S2 → 5I8, 5F5 → 5I8, 5F4, 5S2 → 5I7 transition emissions, respectively, are detected in all samples. The sample co-doped with Bi3+ showed the most intense photoluminescent emission.",
publisher = "Belgrade : Institute for Multidisciplinary Research",
journal = "Programme and the Book of Abstracts / 7th Conference of The Serbian Society for Ceramic Materials, 7CSCS-2023, June 14-16, 2023 Belgrade, Serbia",
title = "Enhancement of up-conversion luminescent characteristics of Yb3+/Ho3+ co-doped Bi3+ based SrGd2O4 nanoparticles",
pages = "113-114",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11483"
}

Stamenković, T., Radmilović, N., Dinić, I., Vuković, M., Barudžija, T., Čebela, M.,& Lojpur, V.. (2023). Enhancement of up-conversion luminescent characteristics of Yb3+/Ho3+ co-doped Bi3+ based SrGd2O4 nanoparticles. in Programme and the Book of Abstracts / 7th Conference of The Serbian Society for Ceramic Materials, 7CSCS-2023, June 14-16, 2023 Belgrade, Serbia
Belgrade : Institute for Multidisciplinary Research., 113-114.
https://hdl.handle.net/21.15107/rcub_vinar_11483

Stamenković T, Radmilović N, Dinić I, Vuković M, Barudžija T, Čebela M, Lojpur V. Enhancement of up-conversion luminescent characteristics of Yb3+/Ho3+ co-doped Bi3+ based SrGd2O4 nanoparticles. in Programme and the Book of Abstracts / 7th Conference of The Serbian Society for Ceramic Materials, 7CSCS-2023, June 14-16, 2023 Belgrade, Serbia. 2023;:113-114.
https://hdl.handle.net/21.15107/rcub_vinar_11483 .

Stamenković, Tijana, Radmilović, Nadežda, Dinić, Ivana, Vuković, Marina, Barudžija, Tanja, Čebela, Maria, Lojpur, Vesna, "Enhancement of up-conversion luminescent characteristics of Yb3+/Ho3+ co-doped Bi3+ based SrGd2O4 nanoparticles" in Programme and the Book of Abstracts / 7th Conference of The Serbian Society for Ceramic Materials, 7CSCS-2023, June 14-16, 2023 Belgrade, Serbia (2023):113-114,
https://hdl.handle.net/21.15107/rcub_vinar_11483 .

TY  - CONF
AU  - Stamenković, Tijana
AU  - Ranđelović, Marjan
AU  - Dinić, Ivana
AU  - Mančić, Lidija
AU  - Lojpur, Vesna
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12318
AB  - In this work we present new up-conversion materials, consisted of SrGd2O4 doped with different concentration of Yb3+ (2, 4, 6 at%) ions and constant concentration of Tm3+ (1 at%), prepared by the combustion method. X-ray powder diffraction (XRPD) showed that assynthesized nanoparticles have orthorhombic structure (Pnma), assigned to the JCPDS Card No:01-072-6387. Scanning electron microscopy (SEM) revealed that obtained nanostructure is composed of porous agglomerated nanoparticles, while energy dispersive spectroscopy (EDS) confirmed presence and uniform distribution of all constituting elements accross the sample. Luminescent properties were evaluated and discovered two blue emission bands at 450 nm and 474 nm, and one red emission band at 650 nm. The sample co-doped with 4 at% Tm3+ showed the most intense photoluminescent emission, and because of that was used in the photocatalytic exiperiment. UV-VIS Diffuse Reflectance Spectroscopy was performed in order to examine materials bandgap, and value of 4.3 eV was obtained as well as the additional values from the bands at lower energies, which indicate potentially good photocatalytic properties. X-ray photoelectron spectroscopy (XPS) revealed presence of OHgroups on the surface which also have positive impact on the photocatalytic performances of the material. UV-VIS Absorption Spectroscopy was used to measure changes of the methylene blue concentration during the photocatalytic degradation process. After 4 h of exposure to the simulating Sun irradiation, the results indicate successful dye decomposition rate. Reaction parameters (MB concentration and catalyst mass) were altered in order to achieve the best photocatalytic performances of this newly synthesized materials.
PB  - Belgrade : Institute of Technical Sciences of SASA
C3  - 21st Young Researchers' Conference Materials Sciences and Engineering : program and the book of abstracts
T1  - Yb3+/Tm3+ doped SrGd2O4 as photoluminescent and photocatalytic material
SP  - 45
EP  - 45
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12318
ER  - 

@conference{
author = "Stamenković, Tijana and Ranđelović, Marjan and Dinić, Ivana and Mančić, Lidija and Lojpur, Vesna",
year = "2023",
abstract = "In this work we present new up-conversion materials, consisted of SrGd2O4 doped with different concentration of Yb3+ (2, 4, 6 at%) ions and constant concentration of Tm3+ (1 at%), prepared by the combustion method. X-ray powder diffraction (XRPD) showed that assynthesized nanoparticles have orthorhombic structure (Pnma), assigned to the JCPDS Card No:01-072-6387. Scanning electron microscopy (SEM) revealed that obtained nanostructure is composed of porous agglomerated nanoparticles, while energy dispersive spectroscopy (EDS) confirmed presence and uniform distribution of all constituting elements accross the sample. Luminescent properties were evaluated and discovered two blue emission bands at 450 nm and 474 nm, and one red emission band at 650 nm. The sample co-doped with 4 at% Tm3+ showed the most intense photoluminescent emission, and because of that was used in the photocatalytic exiperiment. UV-VIS Diffuse Reflectance Spectroscopy was performed in order to examine materials bandgap, and value of 4.3 eV was obtained as well as the additional values from the bands at lower energies, which indicate potentially good photocatalytic properties. X-ray photoelectron spectroscopy (XPS) revealed presence of OHgroups on the surface which also have positive impact on the photocatalytic performances of the material. UV-VIS Absorption Spectroscopy was used to measure changes of the methylene blue concentration during the photocatalytic degradation process. After 4 h of exposure to the simulating Sun irradiation, the results indicate successful dye decomposition rate. Reaction parameters (MB concentration and catalyst mass) were altered in order to achieve the best photocatalytic performances of this newly synthesized materials.",
publisher = "Belgrade : Institute of Technical Sciences of SASA",
journal = "21st Young Researchers' Conference Materials Sciences and Engineering : program and the book of abstracts",
title = "Yb3+/Tm3+ doped SrGd2O4 as photoluminescent and photocatalytic material",
pages = "45-45",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12318"
}

Stamenković, T., Ranđelović, M., Dinić, I., Mančić, L.,& Lojpur, V.. (2023). Yb3+/Tm3+ doped SrGd2O4 as photoluminescent and photocatalytic material. in 21st Young Researchers' Conference Materials Sciences and Engineering : program and the book of abstracts
Belgrade : Institute of Technical Sciences of SASA., 45-45.
https://hdl.handle.net/21.15107/rcub_vinar_12318

Stamenković T, Ranđelović M, Dinić I, Mančić L, Lojpur V. Yb3+/Tm3+ doped SrGd2O4 as photoluminescent and photocatalytic material. in 21st Young Researchers' Conference Materials Sciences and Engineering : program and the book of abstracts. 2023;:45-45.
https://hdl.handle.net/21.15107/rcub_vinar_12318 .

Stamenković, Tijana, Ranđelović, Marjan, Dinić, Ivana, Mančić, Lidija, Lojpur, Vesna, "Yb3+/Tm3+ doped SrGd2O4 as photoluminescent and photocatalytic material" in 21st Young Researchers' Conference Materials Sciences and Engineering : program and the book of abstracts (2023):45-45,
https://hdl.handle.net/21.15107/rcub_vinar_12318 .

TY  - JOUR
AU  - Stamenković, Tijana
AU  - Dinić, Ivana
AU  - Vuković, Marina
AU  - Radmilović, Nadežda
AU  - Barudžija, Tanja
AU  - Tomić, Miloš
AU  - Mančić, Lidija
AU  - Lojpur, Vesna
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11579
AB  - In this investigation, samples of strontium-gadolinium-oxide (SrGd2O4) doped with different Yb3+ (2, 4 and 6 at%) and constant Ho3+ (1 at%) contents and co-doped with Bi3+ (2 at%) were prepared using the glycine-assisted sol–gel method. The pure orthorhombic SrGd2O4 phase, space group Pnma, was revealed using X-ray diffraction in all samples. Transmission electron microscopy discovered agglomerated clusters of spherical particles measuring approximately 150 nm in size. The inclusion of Bi3+ ions into the structure influenced the morphology since the formation of larger grains was observed, with sizes reaching up to ∼1.7 μm. The uniform distribution of all constitutive elements was confirmed by energy-dispersive X-ray spectroscopy. In all samples, up-conversion emission spectra revealed two dominant green (540 and 550 nm), red (671 nm), and infrared (758 nm) emission lines, due to the 5F4,5S2→5I8, 5F5→5I8, and 5F4,5S2 → 5I7 transitions, respectively. The sample co-doped with Bi3+ showed the most intense photoluminescent emissions, shorter luminescence decay, and the highest quantum yield. Additionally, a significant decrease in the energy band gap value was detected using diffuse reflectance spectroscopy for this sample. Methylene blue was used as a test pollutant to investigate its photocatalytic efficiency under simulated sunlight irradiation. The results show that Bi3+ co-doping deteriorates the photocatalytic efficiency of the SrGd2O4:Yb3+/Ho3+ phase by reducing hydroxyl radical formation.
T2  - Ceramics International
T1  - Effect of Bi3+co-doping on the up-converting and photocatalytic properties of SrGd2O4:Yb3+/Ho3+ phase
DO  - 10.1016/j.ceramint.2023.09.103
ER  - 

@article{
author = "Stamenković, Tijana and Dinić, Ivana and Vuković, Marina and Radmilović, Nadežda and Barudžija, Tanja and Tomić, Miloš and Mančić, Lidija and Lojpur, Vesna",
year = "2023",
abstract = "In this investigation, samples of strontium-gadolinium-oxide (SrGd2O4) doped with different Yb3+ (2, 4 and 6 at%) and constant Ho3+ (1 at%) contents and co-doped with Bi3+ (2 at%) were prepared using the glycine-assisted sol–gel method. The pure orthorhombic SrGd2O4 phase, space group Pnma, was revealed using X-ray diffraction in all samples. Transmission electron microscopy discovered agglomerated clusters of spherical particles measuring approximately 150 nm in size. The inclusion of Bi3+ ions into the structure influenced the morphology since the formation of larger grains was observed, with sizes reaching up to ∼1.7 μm. The uniform distribution of all constitutive elements was confirmed by energy-dispersive X-ray spectroscopy. In all samples, up-conversion emission spectra revealed two dominant green (540 and 550 nm), red (671 nm), and infrared (758 nm) emission lines, due to the 5F4,5S2→5I8, 5F5→5I8, and 5F4,5S2 → 5I7 transitions, respectively. The sample co-doped with Bi3+ showed the most intense photoluminescent emissions, shorter luminescence decay, and the highest quantum yield. Additionally, a significant decrease in the energy band gap value was detected using diffuse reflectance spectroscopy for this sample. Methylene blue was used as a test pollutant to investigate its photocatalytic efficiency under simulated sunlight irradiation. The results show that Bi3+ co-doping deteriorates the photocatalytic efficiency of the SrGd2O4:Yb3+/Ho3+ phase by reducing hydroxyl radical formation.",
journal = "Ceramics International",
title = "Effect of Bi3+co-doping on the up-converting and photocatalytic properties of SrGd2O4:Yb3+/Ho3+ phase",
doi = "10.1016/j.ceramint.2023.09.103"
}

Stamenković, T., Dinić, I., Vuković, M., Radmilović, N., Barudžija, T., Tomić, M., Mančić, L.,& Lojpur, V.. (2023). Effect of Bi3+co-doping on the up-converting and photocatalytic properties of SrGd2O4:Yb3+/Ho3+ phase. in Ceramics International.
https://doi.org/10.1016/j.ceramint.2023.09.103

Stamenković T, Dinić I, Vuković M, Radmilović N, Barudžija T, Tomić M, Mančić L, Lojpur V. Effect of Bi3+co-doping on the up-converting and photocatalytic properties of SrGd2O4:Yb3+/Ho3+ phase. in Ceramics International. 2023;.
doi:10.1016/j.ceramint.2023.09.103 .

Stamenković, Tijana, Dinić, Ivana, Vuković, Marina, Radmilović, Nadežda, Barudžija, Tanja, Tomić, Miloš, Mančić, Lidija, Lojpur, Vesna, "Effect of Bi3+co-doping on the up-converting and photocatalytic properties of SrGd2O4:Yb3+/Ho3+ phase" in Ceramics International (2023),
https://doi.org/10.1016/j.ceramint.2023.09.103 . .

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

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

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

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

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

TY  - CONF
AU  - Janković, Milan
AU  - Petrović, Ana
AU  - Lojpur, Vesna
AU  - Miloš, Marko
AU  - Balać, Igor
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11653
AB  - Short carbon fibres (SCF) have been introduced in additive manufacturing (AM) of polymer-based parts designed for moderate loadings. Alongside other influential parameters for the strength and stiffness of thus obtained composite materials, scientific papers in AM field emphasize the effect of raster angle (printing direction) applied. Consequently, this study considers the idea of comparing the yield strength values experimentally evaluated for plate specimens additively manufactured from SCF-reinforced PET-G filament applying different raster angles with theoretical tensile strength vs fibre orientation curves already known from Classical Lamination Theory (CLT) for continuous fibre-reinforced composite laminas. Among many failure criteria relevant to ductile isotropic materials, maximum distortional energy criterion (von Mises) is the most widely used. Thus, von Mises criterion is usually used for predicting the onset of yielding in isotropic metals. However, for anisotropic composite materials, such as thin plates made from continuous fibre-reinforced polymers, the use of von Mises failure criterion is not applicable. Therefore, quadratic interaction criteria (e.g. Tsai-Hill) are often proposed for such materials. In this study, Tsai-Hill quadratic interaction criterion is implemented in order to predict the onset of yielding (failure) of thin composite plates made from SCF-reinforced PET-G. The off-axis tensile test is used to experimentally evaluate the failure of test samples printed with different raster angles. Linear-elastic material behaviour model was determined by modulus of elasticity and the value of yield strength for each sample set (seven sets were observed, raster angle ranging from 0° to 90° with the increment of 15°). Obtained results suggest that Tsai-Hill quadratic interaction criterion can be considered as a potential candidate for criterion capable to predict the onset of yielding (failure) of thin composite plates additively manufactured from SCF-reinforced PET-G material.
PB  - Belgrade : Materials Research Society of Serbia
C3  - YUCOMAT 2023 : 24th Annual Conference YUCOMAT 2023 : programme and the book of abstracts; September 4-8, 2023; Herceg Novi, Montenegro
T1  - Potential of applying the quadratic failure criteria for short carbon fibre-reinforced PET-G composite material used in additive manufacturing
SP  - 84
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11653
ER  - 

@conference{
author = "Janković, Milan and Petrović, Ana and Lojpur, Vesna and Miloš, Marko and Balać, Igor",
year = "2023",
abstract = "Short carbon fibres (SCF) have been introduced in additive manufacturing (AM) of polymer-based parts designed for moderate loadings. Alongside other influential parameters for the strength and stiffness of thus obtained composite materials, scientific papers in AM field emphasize the effect of raster angle (printing direction) applied. Consequently, this study considers the idea of comparing the yield strength values experimentally evaluated for plate specimens additively manufactured from SCF-reinforced PET-G filament applying different raster angles with theoretical tensile strength vs fibre orientation curves already known from Classical Lamination Theory (CLT) for continuous fibre-reinforced composite laminas. Among many failure criteria relevant to ductile isotropic materials, maximum distortional energy criterion (von Mises) is the most widely used. Thus, von Mises criterion is usually used for predicting the onset of yielding in isotropic metals. However, for anisotropic composite materials, such as thin plates made from continuous fibre-reinforced polymers, the use of von Mises failure criterion is not applicable. Therefore, quadratic interaction criteria (e.g. Tsai-Hill) are often proposed for such materials. In this study, Tsai-Hill quadratic interaction criterion is implemented in order to predict the onset of yielding (failure) of thin composite plates made from SCF-reinforced PET-G. The off-axis tensile test is used to experimentally evaluate the failure of test samples printed with different raster angles. Linear-elastic material behaviour model was determined by modulus of elasticity and the value of yield strength for each sample set (seven sets were observed, raster angle ranging from 0° to 90° with the increment of 15°). Obtained results suggest that Tsai-Hill quadratic interaction criterion can be considered as a potential candidate for criterion capable to predict the onset of yielding (failure) of thin composite plates additively manufactured from SCF-reinforced PET-G material.",
publisher = "Belgrade : Materials Research Society of Serbia",
journal = "YUCOMAT 2023 : 24th Annual Conference YUCOMAT 2023 : programme and the book of abstracts; September 4-8, 2023; Herceg Novi, Montenegro",
title = "Potential of applying the quadratic failure criteria for short carbon fibre-reinforced PET-G composite material used in additive manufacturing",
pages = "84",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11653"
}

Janković, M., Petrović, A., Lojpur, V., Miloš, M.,& Balać, I.. (2023). Potential of applying the quadratic failure criteria for short carbon fibre-reinforced PET-G composite material used in additive manufacturing. in YUCOMAT 2023 : 24th Annual Conference YUCOMAT 2023 : programme and the book of abstracts; September 4-8, 2023; Herceg Novi, Montenegro
Belgrade : Materials Research Society of Serbia., 84.
https://hdl.handle.net/21.15107/rcub_vinar_11653

Janković M, Petrović A, Lojpur V, Miloš M, Balać I. Potential of applying the quadratic failure criteria for short carbon fibre-reinforced PET-G composite material used in additive manufacturing. in YUCOMAT 2023 : 24th Annual Conference YUCOMAT 2023 : programme and the book of abstracts; September 4-8, 2023; Herceg Novi, Montenegro. 2023;:84.
https://hdl.handle.net/21.15107/rcub_vinar_11653 .

Janković, Milan, Petrović, Ana, Lojpur, Vesna, Miloš, Marko, Balać, Igor, "Potential of applying the quadratic failure criteria for short carbon fibre-reinforced PET-G composite material used in additive manufacturing" in YUCOMAT 2023 : 24th Annual Conference YUCOMAT 2023 : programme and the book of abstracts; September 4-8, 2023; Herceg Novi, Montenegro (2023):84,
https://hdl.handle.net/21.15107/rcub_vinar_11653 .

TY  - CONF
AU  - Stamenković, Tijana
AU  - Lojpur, Vesna
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11644
AB  - Issues with air and water pollution have become a worldwide problem. Photocatalysis is a technique that holds promise for resolving these urgent issues due to its sustainability, affordability, and environmental friendliness. Recently, anti-Stokes and Stokes luminescence materials have been identified as potentially efficient candidates for photocatalysis exploitation. Under irradiation, doping different Ln3+ ions in an inorganic host will induce designable down and up-conversion emissions beginning in the UV and extending to the NIR region. This investigation will examine the photocatalytic application of the chosen samples. All samples were successfully prepared via sol-gel assisted combustion method. X-ray Powder Diffraction pattern proved that all samples crystallize as a pure orthorhombic phase of SrGd2O4. Scanning and transmission electron microscopy was used for morphology characterization and it revealed the existence of porous agglomerated round-shaped particles favorable for photocatalytic application. Energy Dispersive X-ray Spectroscopy showed the presence of dopant ions and even distribution of all constituting elements. Under simulated solar light irradiation, the photocatalytic characteristics of down-convertors were investigated in the photocatalytic degradation of organic dye methyl orange (MO). During the experiment, a UV/Vis spectrometer was utilized to measure a drop in MO concentration in water solutions. Aliquots of the working solutions were taken at precise time intervals, and the results show that the dye breakdown rate was successful after 4 hours. Methylene blue (MB), as a test pollutant, was used to investigate its photocatalytic efficiency under irradiation of simulated sunlight of up-conversion samples. The obtained results were encouraging because more than 50% of the starting dye concentration was mineralized after 4 hours of exposure to the simulated Sun irradiation.
PB  - Belgrade : Serbian Ceramic Society
C3  - Advanced Ceramics and Application :11th Serbian Ceramic Society Conference : program and the book of abstracts; September 18-20, 2023; Belgrade
T1  - Photocatalytic activity of SrGd2O4 down and up-convertor systems
SP  - 64
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11644
ER  - 

@conference{
author = "Stamenković, Tijana and Lojpur, Vesna",
year = "2023",
abstract = "Issues with air and water pollution have become a worldwide problem. Photocatalysis is a technique that holds promise for resolving these urgent issues due to its sustainability, affordability, and environmental friendliness. Recently, anti-Stokes and Stokes luminescence materials have been identified as potentially efficient candidates for photocatalysis exploitation. Under irradiation, doping different Ln3+ ions in an inorganic host will induce designable down and up-conversion emissions beginning in the UV and extending to the NIR region. This investigation will examine the photocatalytic application of the chosen samples. All samples were successfully prepared via sol-gel assisted combustion method. X-ray Powder Diffraction pattern proved that all samples crystallize as a pure orthorhombic phase of SrGd2O4. Scanning and transmission electron microscopy was used for morphology characterization and it revealed the existence of porous agglomerated round-shaped particles favorable for photocatalytic application. Energy Dispersive X-ray Spectroscopy showed the presence of dopant ions and even distribution of all constituting elements. Under simulated solar light irradiation, the photocatalytic characteristics of down-convertors were investigated in the photocatalytic degradation of organic dye methyl orange (MO). During the experiment, a UV/Vis spectrometer was utilized to measure a drop in MO concentration in water solutions. Aliquots of the working solutions were taken at precise time intervals, and the results show that the dye breakdown rate was successful after 4 hours. Methylene blue (MB), as a test pollutant, was used to investigate its photocatalytic efficiency under irradiation of simulated sunlight of up-conversion samples. The obtained results were encouraging because more than 50% of the starting dye concentration was mineralized after 4 hours of exposure to the simulated Sun irradiation.",
publisher = "Belgrade : Serbian Ceramic Society",
journal = "Advanced Ceramics and Application :11th Serbian Ceramic Society Conference : program and the book of abstracts; September 18-20, 2023; Belgrade",
title = "Photocatalytic activity of SrGd2O4 down and up-convertor systems",
pages = "64",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11644"
}

Stamenković, T.,& Lojpur, V.. (2023). Photocatalytic activity of SrGd2O4 down and up-convertor systems. in Advanced Ceramics and Application :11th Serbian Ceramic Society Conference : program and the book of abstracts; September 18-20, 2023; Belgrade
Belgrade : Serbian Ceramic Society., 64.
https://hdl.handle.net/21.15107/rcub_vinar_11644

Stamenković T, Lojpur V. Photocatalytic activity of SrGd2O4 down and up-convertor systems. in Advanced Ceramics and Application :11th Serbian Ceramic Society Conference : program and the book of abstracts; September 18-20, 2023; Belgrade. 2023;:64.
https://hdl.handle.net/21.15107/rcub_vinar_11644 .

Stamenković, Tijana, Lojpur, Vesna, "Photocatalytic activity of SrGd2O4 down and up-convertor systems" in Advanced Ceramics and Application :11th Serbian Ceramic Society Conference : program and the book of abstracts; September 18-20, 2023; Belgrade (2023):64,
https://hdl.handle.net/21.15107/rcub_vinar_11644 .

TY  - CONF
AU  - Stamenković, Tijana
AU  - Čebela, Maria
AU  - Lojpur, Vesna
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11515
AB  - In this investigation, samples of SrGd2O4 doped with different concentration of Yb3+ (2, 4, 6 at%) ions and constant concentration of Ho3+ (1 at%) were prepared. As for synthesis we chose combustion method assisted with glycine as a fuel and citric acid as a chelator. All samples were burned in the furnace at 500 °C for 1.5h and afterwards additionally thermally treated for 2.5 h at 1000 °C. X-ray diffraction (XRD) showed peaks that correspond to the pure orthorhombic lattice of SrGd2O4, space group Pnma (JCPDS Card No.:01-072-6387). FE-SEM micrographs revealed agglomerated phenomenon with spherical shape and diameter around 200 nm. Energy dispersive X-ray spectroscopy (EDS) verified uniform distribution of all constituting elements in particles. Powders optical characterization include measurement of up-conversion (UC) emission spectra after excitation at 980 nm, as well as up-converted intensity dependence on excitation power. Dominant green emission 5F4, 5S2 → 5 I8 was found in all samples, with the most intense emission with 2 at% of Yb3+ and dependence of intensity of UC emission on excitation power confirmed that green emission is facilitated by energy transfer mechanism with two photons.
PB  - University of Belgrade : Faculty of Physical Chemistry
C3  - COIN 2022 : Contemporary Batteries and Supercapacitors - International Symposium Belgrade 2022 : program and book of abstracts; June 1-2; Belgrade
T1  - The Synthesis and Characterization of Yb3+ and Ho3+ Doped SrGd2O4
SP  - 41
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11515
ER  - 

@conference{
author = "Stamenković, Tijana and Čebela, Maria and Lojpur, Vesna",
year = "2022",
abstract = "In this investigation, samples of SrGd2O4 doped with different concentration of Yb3+ (2, 4, 6 at%) ions and constant concentration of Ho3+ (1 at%) were prepared. As for synthesis we chose combustion method assisted with glycine as a fuel and citric acid as a chelator. All samples were burned in the furnace at 500 °C for 1.5h and afterwards additionally thermally treated for 2.5 h at 1000 °C. X-ray diffraction (XRD) showed peaks that correspond to the pure orthorhombic lattice of SrGd2O4, space group Pnma (JCPDS Card No.:01-072-6387). FE-SEM micrographs revealed agglomerated phenomenon with spherical shape and diameter around 200 nm. Energy dispersive X-ray spectroscopy (EDS) verified uniform distribution of all constituting elements in particles. Powders optical characterization include measurement of up-conversion (UC) emission spectra after excitation at 980 nm, as well as up-converted intensity dependence on excitation power. Dominant green emission 5F4, 5S2 → 5 I8 was found in all samples, with the most intense emission with 2 at% of Yb3+ and dependence of intensity of UC emission on excitation power confirmed that green emission is facilitated by energy transfer mechanism with two photons.",
publisher = "University of Belgrade : Faculty of Physical Chemistry",
journal = "COIN 2022 : Contemporary Batteries and Supercapacitors - International Symposium Belgrade 2022 : program and book of abstracts; June 1-2; Belgrade",
title = "The Synthesis and Characterization of Yb3+ and Ho3+ Doped SrGd2O4",
pages = "41",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11515"
}

Stamenković, T., Čebela, M.,& Lojpur, V.. (2022). The Synthesis and Characterization of Yb3+ and Ho3+ Doped SrGd2O4. in COIN 2022 : Contemporary Batteries and Supercapacitors - International Symposium Belgrade 2022 : program and book of abstracts; June 1-2; Belgrade
University of Belgrade : Faculty of Physical Chemistry., 41.
https://hdl.handle.net/21.15107/rcub_vinar_11515

Stamenković T, Čebela M, Lojpur V. The Synthesis and Characterization of Yb3+ and Ho3+ Doped SrGd2O4. in COIN 2022 : Contemporary Batteries and Supercapacitors - International Symposium Belgrade 2022 : program and book of abstracts; June 1-2; Belgrade. 2022;:41.
https://hdl.handle.net/21.15107/rcub_vinar_11515 .

Stamenković, Tijana, Čebela, Maria, Lojpur, Vesna, "The Synthesis and Characterization of Yb3+ and Ho3+ Doped SrGd2O4" in COIN 2022 : Contemporary Batteries and Supercapacitors - International Symposium Belgrade 2022 : program and book of abstracts; June 1-2; Belgrade (2022):41,
https://hdl.handle.net/21.15107/rcub_vinar_11515 .

TY  - CONF
AU  - Čebela, Maria
AU  - Rosić, Milena
AU  - Lojpur, Vesna
AU  - Dodevski, Vladimir
AU  - Krstić, Sanja
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11518
AB  - Magnetoelectric multiferroics, showing simultaneous ferroelectric and ferromagnetic ordering, have aroused wide attention in recent years, because they offer a wide range of potential applications in data storage media, spintronics and multi-state memories. [1] The influence of Ho doping on the crystal structure of bismuth ferrite (BFO) nanopowders was investigated. Namely, BiFeO3 and Bi1- xHoxFeO3 ultrafine nanopowders were synthesized by the simple, low-cost and energy-saving hydrothermal method. The diffraction pattern was recorded at room temperature and atmospheric pressure in the absence of any re-heating of the sample. A fitting refinement procedure using the Rietveld method was performed which showed the incorporation of Ho3+ ions in the BiFeO3 crystal lattice, where they substitute Bi3+ ions. All the samples belong to R3c space group. In addition, theoretical investigation using bond valence calculations have been performed in order to mimic pure and Ho doped BiFeO3 compounds produced in the experiment. The optical properties of the material were examined by the spectroscopic ellipsometry method and the energy gap was found to be 2.71 eV. Transmission electron microscopy (TEM) and the scanning electron microscopy (SEM) was used to determine the particle size and morphology. Bi-based oxides will be electrochemically characterized in an aqueous electrolytes of sodium salts by means of Cyclic Voltammetry, to estimate their potential as sodium storage electrodes.
PB  - University of Belgrade : Faculty of Physical Chemistry
C3  - COIN 2022 : Contemporary Batteries and Supercapacitors - International Symposium Belgrade 2022 : program and book of abstracts; June 1-2; Belgrade
T1  - Synthesis, Structural and Morphological Properties of Multiferroics
SP  - 42
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11518
ER  - 

@conference{
author = "Čebela, Maria and Rosić, Milena and Lojpur, Vesna and Dodevski, Vladimir and Krstić, Sanja",
year = "2022",
abstract = "Magnetoelectric multiferroics, showing simultaneous ferroelectric and ferromagnetic ordering, have aroused wide attention in recent years, because they offer a wide range of potential applications in data storage media, spintronics and multi-state memories. [1] The influence of Ho doping on the crystal structure of bismuth ferrite (BFO) nanopowders was investigated. Namely, BiFeO3 and Bi1- xHoxFeO3 ultrafine nanopowders were synthesized by the simple, low-cost and energy-saving hydrothermal method. The diffraction pattern was recorded at room temperature and atmospheric pressure in the absence of any re-heating of the sample. A fitting refinement procedure using the Rietveld method was performed which showed the incorporation of Ho3+ ions in the BiFeO3 crystal lattice, where they substitute Bi3+ ions. All the samples belong to R3c space group. In addition, theoretical investigation using bond valence calculations have been performed in order to mimic pure and Ho doped BiFeO3 compounds produced in the experiment. The optical properties of the material were examined by the spectroscopic ellipsometry method and the energy gap was found to be 2.71 eV. Transmission electron microscopy (TEM) and the scanning electron microscopy (SEM) was used to determine the particle size and morphology. Bi-based oxides will be electrochemically characterized in an aqueous electrolytes of sodium salts by means of Cyclic Voltammetry, to estimate their potential as sodium storage electrodes.",
publisher = "University of Belgrade : Faculty of Physical Chemistry",
journal = "COIN 2022 : Contemporary Batteries and Supercapacitors - International Symposium Belgrade 2022 : program and book of abstracts; June 1-2; Belgrade",
title = "Synthesis, Structural and Morphological Properties of Multiferroics",
pages = "42",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11518"
}

Čebela, M., Rosić, M., Lojpur, V., Dodevski, V.,& Krstić, S.. (2022). Synthesis, Structural and Morphological Properties of Multiferroics. in COIN 2022 : Contemporary Batteries and Supercapacitors - International Symposium Belgrade 2022 : program and book of abstracts; June 1-2; Belgrade
University of Belgrade : Faculty of Physical Chemistry., 42.
https://hdl.handle.net/21.15107/rcub_vinar_11518

Čebela M, Rosić M, Lojpur V, Dodevski V, Krstić S. Synthesis, Structural and Morphological Properties of Multiferroics. in COIN 2022 : Contemporary Batteries and Supercapacitors - International Symposium Belgrade 2022 : program and book of abstracts; June 1-2; Belgrade. 2022;:42.
https://hdl.handle.net/21.15107/rcub_vinar_11518 .

Čebela, Maria, Rosić, Milena, Lojpur, Vesna, Dodevski, Vladimir, Krstić, Sanja, "Synthesis, Structural and Morphological Properties of Multiferroics" in COIN 2022 : Contemporary Batteries and Supercapacitors - International Symposium Belgrade 2022 : program and book of abstracts; June 1-2; Belgrade (2022):42,
https://hdl.handle.net/21.15107/rcub_vinar_11518 .

TY  - CONF
AU  - Stamenković, Tijana
AU  - Radmilović, Nadežda
AU  - Čebela, Maria
AU  - Prekajski Đorđević, Marija
AU  - Lojpur, Vesna
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12859
AB  - Nanopowders of a new up-conversion materials, SrGd 2 O4 co-doped with different Yb3+ (1, 2.5 and 5 at%) and constant Er 3+ (0.5 at%) concentrations were prepared by combustion method. X-ray powder diffraction (XRPD) showed that nanoparticles have orthorhombic structure (Pnma), assigned to the JCPDS Card No:01-072-6387. Rietveld refinement indicated a decrease in the size of the unit cell, lattice parameters, and cell volume, due to successful doping of Yb3+ and Er 3+ ions into the host structure. Transmission electron microscopy (TEM) revealed that obtained nanostructure is composed of agglomerated nanoparticles, while energy dispersive spectroscopy (EDS) confirmed uniform distribution of all constituting elements in them. Up-conversion (UC) luminescence spectra measured in function of laser pumping power indicated that two-photon UC process is established in nanoparticles as a result of the trivalent erbium f-f electronic transitions: two green emission bands at 523 and 551 nm ( 2 H11/2 , 4 S 3/2 → 4 I 15/2) as well as a red emission band at 661 nm ( 4 F9/2 → 4 I 15/2). The rise of Yb3+ concentration from 1 to 5 at% provokes a significant change of the green to red ratio showing the ability to fine-tuning the color output.
PB  - Belgrade : Vinča Institute of Nuclear Sciences - National Institute of thе Republic of Serbia, University of Belgrade
PB  - Belgrade : Serbian Society for Innovative Materials in Extreme Conditions (SIM-EXTREME)
C3  - Program and Book of abstracts of the 1st Intentational conference on innovativ materials in extreme conditions IMEC2022
T1  - Investigation of Yb3+/Er3+ doped SrGd2O4 up-conversion nanomaterial obtained via combustion synthesis
SP  - 50
EP  - 50
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12859
ER  - 

@conference{
author = "Stamenković, Tijana and Radmilović, Nadežda and Čebela, Maria and Prekajski Đorđević, Marija and Lojpur, Vesna",
year = "2022",
abstract = "Nanopowders of a new up-conversion materials, SrGd 2 O4 co-doped with different Yb3+ (1, 2.5 and 5 at%) and constant Er 3+ (0.5 at%) concentrations were prepared by combustion method. X-ray powder diffraction (XRPD) showed that nanoparticles have orthorhombic structure (Pnma), assigned to the JCPDS Card No:01-072-6387. Rietveld refinement indicated a decrease in the size of the unit cell, lattice parameters, and cell volume, due to successful doping of Yb3+ and Er 3+ ions into the host structure. Transmission electron microscopy (TEM) revealed that obtained nanostructure is composed of agglomerated nanoparticles, while energy dispersive spectroscopy (EDS) confirmed uniform distribution of all constituting elements in them. Up-conversion (UC) luminescence spectra measured in function of laser pumping power indicated that two-photon UC process is established in nanoparticles as a result of the trivalent erbium f-f electronic transitions: two green emission bands at 523 and 551 nm ( 2 H11/2 , 4 S 3/2 → 4 I 15/2) as well as a red emission band at 661 nm ( 4 F9/2 → 4 I 15/2). The rise of Yb3+ concentration from 1 to 5 at% provokes a significant change of the green to red ratio showing the ability to fine-tuning the color output.",
publisher = "Belgrade : Vinča Institute of Nuclear Sciences - National Institute of thе Republic of Serbia, University of Belgrade, Belgrade : Serbian Society for Innovative Materials in Extreme Conditions (SIM-EXTREME)",
journal = "Program and Book of abstracts of the 1st Intentational conference on innovativ materials in extreme conditions IMEC2022",
title = "Investigation of Yb3+/Er3+ doped SrGd2O4 up-conversion nanomaterial obtained via combustion synthesis",
pages = "50-50",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12859"
}

Stamenković, T., Radmilović, N., Čebela, M., Prekajski Đorđević, M.,& Lojpur, V.. (2022). Investigation of Yb3+/Er3+ doped SrGd2O4 up-conversion nanomaterial obtained via combustion synthesis. in Program and Book of abstracts of the 1st Intentational conference on innovativ materials in extreme conditions IMEC2022
Belgrade : Vinča Institute of Nuclear Sciences - National Institute of thе Republic of Serbia, University of Belgrade., 50-50.
https://hdl.handle.net/21.15107/rcub_vinar_12859

Stamenković T, Radmilović N, Čebela M, Prekajski Đorđević M, Lojpur V. Investigation of Yb3+/Er3+ doped SrGd2O4 up-conversion nanomaterial obtained via combustion synthesis. in Program and Book of abstracts of the 1st Intentational conference on innovativ materials in extreme conditions IMEC2022. 2022;:50-50.
https://hdl.handle.net/21.15107/rcub_vinar_12859 .

Stamenković, Tijana, Radmilović, Nadežda, Čebela, Maria, Prekajski Đorđević, Marija, Lojpur, Vesna, "Investigation of Yb3+/Er3+ doped SrGd2O4 up-conversion nanomaterial obtained via combustion synthesis" in Program and Book of abstracts of the 1st Intentational conference on innovativ materials in extreme conditions IMEC2022 (2022):50-50,
https://hdl.handle.net/21.15107/rcub_vinar_12859 .

TY  - CONF
AU  - Stamenković, Tijana
AU  - Radmilović, Nadežda
AU  - Erčić, Jelena
AU  - Čebela, Maria
AU  - Lojpur, Vesna
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12860
AB  - In this investigation, down-conversion nanopowders of SrGd 2 O 4 doped with different concentrations of either Dy3+ or Sm3+ ions were examined. All samples were prepared via glycine-assisted combustion method, first burned at 500 ºC for 1.5h and additionally calcined at 1000 ºC for 2.5h, at ambient room temperature. The XRD analysis confirmed that all samples crystallize as single phase and the orthorhombic lattice SrGd2O4 . TEM analysis determined high degree of crystallinity of samples with grain size of approximately 200 nm for Dy 3+ doped and 150 nm for Sm 3+ doped SrGd2 O 4 . For both samples SAED showed that diffraction rings correspond to the hkl plane indices of SrGd 2 O 4 , while EDS indicated presence of Dy in crystal structure. Results of luminescent characterization demonstrated all appropriate emission peaks related to either Dy3+ or Sm 3+ dopant ions. Investigation of dopant concentration revealed that the lowest values of both dopants have the most prominent emission peaks, while coordinates obtained from the CIE diagram showed emission shifting with the change of concentration.
PB  - Belgrade : Vinča Institute of Nuclear Sciences - National Institute of thе Republic of Serbia, University of Belgrade
PB  - Belgrade : Serbian Society for Innovative Materials in Extreme Conditions (SIM-EXTREME)
C3  - Program and Book of abstracts of the 1st Intentational conference on innovativ materials in extreme conditions IMEC2022
T1  - Synthesis and characterization of a new Dy3+ and Sm3+ doped SrGd2O4 down-conversion    nanomaterial obtained via glycine-assisted combustion synthesis
SP  - 51
EP  - 51
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12860
ER  - 

@conference{
author = "Stamenković, Tijana and Radmilović, Nadežda and Erčić, Jelena and Čebela, Maria and Lojpur, Vesna",
year = "2022",
abstract = "In this investigation, down-conversion nanopowders of SrGd 2 O 4 doped with different concentrations of either Dy3+ or Sm3+ ions were examined. All samples were prepared via glycine-assisted combustion method, first burned at 500 ºC for 1.5h and additionally calcined at 1000 ºC for 2.5h, at ambient room temperature. The XRD analysis confirmed that all samples crystallize as single phase and the orthorhombic lattice SrGd2O4 . TEM analysis determined high degree of crystallinity of samples with grain size of approximately 200 nm for Dy 3+ doped and 150 nm for Sm 3+ doped SrGd2 O 4 . For both samples SAED showed that diffraction rings correspond to the hkl plane indices of SrGd 2 O 4 , while EDS indicated presence of Dy in crystal structure. Results of luminescent characterization demonstrated all appropriate emission peaks related to either Dy3+ or Sm 3+ dopant ions. Investigation of dopant concentration revealed that the lowest values of both dopants have the most prominent emission peaks, while coordinates obtained from the CIE diagram showed emission shifting with the change of concentration.",
publisher = "Belgrade : Vinča Institute of Nuclear Sciences - National Institute of thе Republic of Serbia, University of Belgrade, Belgrade : Serbian Society for Innovative Materials in Extreme Conditions (SIM-EXTREME)",
journal = "Program and Book of abstracts of the 1st Intentational conference on innovativ materials in extreme conditions IMEC2022",
title = "Synthesis and characterization of a new Dy3+ and Sm3+ doped SrGd2O4 down-conversion    nanomaterial obtained via glycine-assisted combustion synthesis",
pages = "51-51",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12860"
}

Stamenković, T., Radmilović, N., Erčić, J., Čebela, M.,& Lojpur, V.. (2022). Synthesis and characterization of a new Dy3+ and Sm3+ doped SrGd2O4 down-conversion    nanomaterial obtained via glycine-assisted combustion synthesis. in Program and Book of abstracts of the 1st Intentational conference on innovativ materials in extreme conditions IMEC2022
Belgrade : Vinča Institute of Nuclear Sciences - National Institute of thе Republic of Serbia, University of Belgrade., 51-51.
https://hdl.handle.net/21.15107/rcub_vinar_12860

Stamenković T, Radmilović N, Erčić J, Čebela M, Lojpur V. Synthesis and characterization of a new Dy3+ and Sm3+ doped SrGd2O4 down-conversion    nanomaterial obtained via glycine-assisted combustion synthesis. in Program and Book of abstracts of the 1st Intentational conference on innovativ materials in extreme conditions IMEC2022. 2022;:51-51.
https://hdl.handle.net/21.15107/rcub_vinar_12860 .

Stamenković, Tijana, Radmilović, Nadežda, Erčić, Jelena, Čebela, Maria, Lojpur, Vesna, "Synthesis and characterization of a new Dy3+ and Sm3+ doped SrGd2O4 down-conversion    nanomaterial obtained via glycine-assisted combustion synthesis" in Program and Book of abstracts of the 1st Intentational conference on innovativ materials in extreme conditions IMEC2022 (2022):51-51,
https://hdl.handle.net/21.15107/rcub_vinar_12860 .

TY  - CONF
AU  - Čebela, Maria
AU  - Rosić, Milena
AU  - Lojpur, Vesna
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12861
AB  - Bismuth ferrite (BiFeO3) is one of the most researched single-phase multiferroic materials.The Fe2 O 3 and Bi 2 O3 oxides were the starting materials for the synthesis of the single phase BiFeO3 . The preparation of BiFeO 3 was done by solid-state method with slight innovation: first, the oxides were activated separately, not together as usual, by milling in the ball mill and second, the 1% olein acid was added to Bi2 O3 as a surfactant before milling, to prevent its granulation. The adding of the oleic acid to Fe2 O 3 was not necessary, because it did not show granulation during milling. The activated Fe2 O 3 and Bi 2 O3 powders were characterized by granylometric analysis after milling in two steps for 4.5 h. The obtained particle sizes were confirmed by SEM micrographs. Finally, prepared oxide powders were mixed, homogenized and sintered. According to XRD pattern the final phase of Fe2 O 3 - Bi 2 O3 mixture sintered at 7900 C for 4 hours was rhombohedral phase of the R3c space group (JCPDS No. 86-1518) BiFeO3 with less than 4% of Bi-rich secondary phase of Bi 25FeO 40 .
PB  - Belgrade : Vinča Institute of Nuclear Sciences - National Institute of thе Republic of Serbia, University of Belgrade
PB  - Belgrade : Serbian Society for Innovative Materials in Extreme Conditions (SIM-EXTREME)
C3  - Program and Book of abstracts of the 1st Intentational conference on innovativ materials in extreme conditions IMEC2022
T1  - Mechanochemical activation of starting oxide mixtures for solid-state synthesis of BiFeO3
SP  - 52
EP  - 52
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12861
ER  - 

@conference{
author = "Čebela, Maria and Rosić, Milena and Lojpur, Vesna",
year = "2022",
abstract = "Bismuth ferrite (BiFeO3) is one of the most researched single-phase multiferroic materials.The Fe2 O 3 and Bi 2 O3 oxides were the starting materials for the synthesis of the single phase BiFeO3 . The preparation of BiFeO 3 was done by solid-state method with slight innovation: first, the oxides were activated separately, not together as usual, by milling in the ball mill and second, the 1% olein acid was added to Bi2 O3 as a surfactant before milling, to prevent its granulation. The adding of the oleic acid to Fe2 O 3 was not necessary, because it did not show granulation during milling. The activated Fe2 O 3 and Bi 2 O3 powders were characterized by granylometric analysis after milling in two steps for 4.5 h. The obtained particle sizes were confirmed by SEM micrographs. Finally, prepared oxide powders were mixed, homogenized and sintered. According to XRD pattern the final phase of Fe2 O 3 - Bi 2 O3 mixture sintered at 7900 C for 4 hours was rhombohedral phase of the R3c space group (JCPDS No. 86-1518) BiFeO3 with less than 4% of Bi-rich secondary phase of Bi 25FeO 40 .",
publisher = "Belgrade : Vinča Institute of Nuclear Sciences - National Institute of thе Republic of Serbia, University of Belgrade, Belgrade : Serbian Society for Innovative Materials in Extreme Conditions (SIM-EXTREME)",
journal = "Program and Book of abstracts of the 1st Intentational conference on innovativ materials in extreme conditions IMEC2022",
title = "Mechanochemical activation of starting oxide mixtures for solid-state synthesis of BiFeO3",
pages = "52-52",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12861"
}

Čebela, M., Rosić, M.,& Lojpur, V.. (2022). Mechanochemical activation of starting oxide mixtures for solid-state synthesis of BiFeO3. in Program and Book of abstracts of the 1st Intentational conference on innovativ materials in extreme conditions IMEC2022
Belgrade : Vinča Institute of Nuclear Sciences - National Institute of thе Republic of Serbia, University of Belgrade., 52-52.
https://hdl.handle.net/21.15107/rcub_vinar_12861

Čebela M, Rosić M, Lojpur V. Mechanochemical activation of starting oxide mixtures for solid-state synthesis of BiFeO3. in Program and Book of abstracts of the 1st Intentational conference on innovativ materials in extreme conditions IMEC2022. 2022;:52-52.
https://hdl.handle.net/21.15107/rcub_vinar_12861 .

Čebela, Maria, Rosić, Milena, Lojpur, Vesna, "Mechanochemical activation of starting oxide mixtures for solid-state synthesis of BiFeO3" in Program and Book of abstracts of the 1st Intentational conference on innovativ materials in extreme conditions IMEC2022 (2022):52-52,
https://hdl.handle.net/21.15107/rcub_vinar_12861 .

TY  - CONF
AU  - Čebela, Maria
AU  - Reddy, Priyanka
AU  - Šenjug, Pavla
AU  - Barišić, Dario
AU  - Rosić, Milena
AU  - Lojpur, Vesna
AU  - Dodevski, Vladimir
AU  - Krstić, Sanja
AU  - Pajić, Damir
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11503
AB  - Iron(III) titanates are composed of earth-abundant elements and are attracting rapidly growing interest as highly promising candidates for solar-energy as well as optoelectronics applications. Fe2TiO5 is generally recognized as potential thermoelectric material. We studied the magnetic properties of pseudobrookite material Fe2TiO5 by means of Vibrating Sample Magnetometer and Superconducting Quantum Interferometer Device Magnetometer. The material was synthesized by the sol-gel method and characterized by powder x-ray diffraction. The diffractogram was refined with the help of Rietveld refinement on FullProf Suite. Temperature-dependent ZFC and FC magnetization was measured on SQUID for lower temperature down to 2 K and on VSM for higher temperatures up to 1000 K. A transition was observed at 815 K with a separation between the ZFC and FC curves. Parallelly the bifurcation in the isothermal hysteresis measurements indicates that the system exhibits dominant canted AFM (or weak FM) with a small amount of spin glass. The small value of the moment was also pointing towards the canted AFM ordering. Transmission electron microscopy (TEM) and the scanning electron microscopy (SEM) were used to determine the particle size and morphology
PB  - University of Belgrade : Institute for Multidisciplinary Research
C3  - 6CSCS : 6th Serbian Ceramic Society Conference : programme and the book of abstracts; June 28-29; Belgrade
T1  - Magnetic properties of Fe2TiO5
SP  - 73
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11503
ER  - 

@conference{
author = "Čebela, Maria and Reddy, Priyanka and Šenjug, Pavla and Barišić, Dario and Rosić, Milena and Lojpur, Vesna and Dodevski, Vladimir and Krstić, Sanja and Pajić, Damir",
year = "2022",
abstract = "Iron(III) titanates are composed of earth-abundant elements and are attracting rapidly growing interest as highly promising candidates for solar-energy as well as optoelectronics applications. Fe2TiO5 is generally recognized as potential thermoelectric material. We studied the magnetic properties of pseudobrookite material Fe2TiO5 by means of Vibrating Sample Magnetometer and Superconducting Quantum Interferometer Device Magnetometer. The material was synthesized by the sol-gel method and characterized by powder x-ray diffraction. The diffractogram was refined with the help of Rietveld refinement on FullProf Suite. Temperature-dependent ZFC and FC magnetization was measured on SQUID for lower temperature down to 2 K and on VSM for higher temperatures up to 1000 K. A transition was observed at 815 K with a separation between the ZFC and FC curves. Parallelly the bifurcation in the isothermal hysteresis measurements indicates that the system exhibits dominant canted AFM (or weak FM) with a small amount of spin glass. The small value of the moment was also pointing towards the canted AFM ordering. Transmission electron microscopy (TEM) and the scanning electron microscopy (SEM) were used to determine the particle size and morphology",
publisher = "University of Belgrade : Institute for Multidisciplinary Research",
journal = "6CSCS : 6th Serbian Ceramic Society Conference : programme and the book of abstracts; June 28-29; Belgrade",
title = "Magnetic properties of Fe2TiO5",
pages = "73",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11503"
}

Čebela, M., Reddy, P., Šenjug, P., Barišić, D., Rosić, M., Lojpur, V., Dodevski, V., Krstić, S.,& Pajić, D.. (2022). Magnetic properties of Fe2TiO5. in 6CSCS : 6th Serbian Ceramic Society Conference : programme and the book of abstracts; June 28-29; Belgrade
University of Belgrade : Institute for Multidisciplinary Research., 73.
https://hdl.handle.net/21.15107/rcub_vinar_11503

Čebela M, Reddy P, Šenjug P, Barišić D, Rosić M, Lojpur V, Dodevski V, Krstić S, Pajić D. Magnetic properties of Fe2TiO5. in 6CSCS : 6th Serbian Ceramic Society Conference : programme and the book of abstracts; June 28-29; Belgrade. 2022;:73.
https://hdl.handle.net/21.15107/rcub_vinar_11503 .

Čebela, Maria, Reddy, Priyanka, Šenjug, Pavla, Barišić, Dario, Rosić, Milena, Lojpur, Vesna, Dodevski, Vladimir, Krstić, Sanja, Pajić, Damir, "Magnetic properties of Fe2TiO5" in 6CSCS : 6th Serbian Ceramic Society Conference : programme and the book of abstracts; June 28-29; Belgrade (2022):73,
https://hdl.handle.net/21.15107/rcub_vinar_11503 .

TY  - CONF
AU  - Čebela, Maria
AU  - Šenjug, Pavla
AU  - Barišić, Dario
AU  - Rosić, Milena
AU  - Lojpur, Vesna
AU  - Pajić, Damir
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11504
AB  - The influence of Ag doping on the crystal structure and magnetic properties of CuO nanopowders was investigated. Nanoparticles of copper–silver oxide solid solutions with composition Cu1-xAgxO (x=0.01–0.05) were successfully produced by using self-propagating room temperature synthesis using reaction between metal nitrates and sodium hydroxide. Prepared powders were calcinated at 700 °C for 2 h. The diffraction pattern was recorded at room temperature and atmospheric pressure without of any re-heating of the sample. A fitting refinement procedure using the Rietveld method was performed which showed the incorporation of Ag3+ ions in the CuO crystal lattice, where they substitute Cu2+ ions. Magnetic behaviour of synthesized materials was investigated by SQUID magnetometer in temperature interval 2–400 K. It is known that copper(II) oxide exhibits ferroelectricity driven by magnetic order at temperature as high as 230 K [1]. Multiferroic phase is present above the first order phase transition at TN1 = 213 K and exists up to the subsequent first order phase transition TN2 = 230 K [1,2]. It was shown that disorder in the form of impurities can stabilize the ferroelectric phase [2] this was our motivation to dope CuO with Ag in order to improve further its multiferroic properties. In Cu1-xAgxO small changes of magnetic properties were observed if compared to CuO. Transmission electron microscopy (TEM) and the scanning electron microscopy (SEM) were used to determine the particle size and morphology.
PB  - University of Belgrade : Institute for Multidisciplinary Research
C3  - 6CSCS : 6th Serbian Ceramic Society Conference : programme and the book of abstracts; June 28-29; Belgrade
T1  - Effect of Ag doping on the morphological and magnetic properties of CuO nanostructures
SP  - 72
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11504
ER  - 

@conference{
author = "Čebela, Maria and Šenjug, Pavla and Barišić, Dario and Rosić, Milena and Lojpur, Vesna and Pajić, Damir",
year = "2022",
abstract = "The influence of Ag doping on the crystal structure and magnetic properties of CuO nanopowders was investigated. Nanoparticles of copper–silver oxide solid solutions with composition Cu1-xAgxO (x=0.01–0.05) were successfully produced by using self-propagating room temperature synthesis using reaction between metal nitrates and sodium hydroxide. Prepared powders were calcinated at 700 °C for 2 h. The diffraction pattern was recorded at room temperature and atmospheric pressure without of any re-heating of the sample. A fitting refinement procedure using the Rietveld method was performed which showed the incorporation of Ag3+ ions in the CuO crystal lattice, where they substitute Cu2+ ions. Magnetic behaviour of synthesized materials was investigated by SQUID magnetometer in temperature interval 2–400 K. It is known that copper(II) oxide exhibits ferroelectricity driven by magnetic order at temperature as high as 230 K [1]. Multiferroic phase is present above the first order phase transition at TN1 = 213 K and exists up to the subsequent first order phase transition TN2 = 230 K [1,2]. It was shown that disorder in the form of impurities can stabilize the ferroelectric phase [2] this was our motivation to dope CuO with Ag in order to improve further its multiferroic properties. In Cu1-xAgxO small changes of magnetic properties were observed if compared to CuO. Transmission electron microscopy (TEM) and the scanning electron microscopy (SEM) were used to determine the particle size and morphology.",
publisher = "University of Belgrade : Institute for Multidisciplinary Research",
journal = "6CSCS : 6th Serbian Ceramic Society Conference : programme and the book of abstracts; June 28-29; Belgrade",
title = "Effect of Ag doping on the morphological and magnetic properties of CuO nanostructures",
pages = "72",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11504"
}

Čebela, M., Šenjug, P., Barišić, D., Rosić, M., Lojpur, V.,& Pajić, D.. (2022). Effect of Ag doping on the morphological and magnetic properties of CuO nanostructures. in 6CSCS : 6th Serbian Ceramic Society Conference : programme and the book of abstracts; June 28-29; Belgrade
University of Belgrade : Institute for Multidisciplinary Research., 72.
https://hdl.handle.net/21.15107/rcub_vinar_11504

Čebela M, Šenjug P, Barišić D, Rosić M, Lojpur V, Pajić D. Effect of Ag doping on the morphological and magnetic properties of CuO nanostructures. in 6CSCS : 6th Serbian Ceramic Society Conference : programme and the book of abstracts; June 28-29; Belgrade. 2022;:72.
https://hdl.handle.net/21.15107/rcub_vinar_11504 .

Čebela, Maria, Šenjug, Pavla, Barišić, Dario, Rosić, Milena, Lojpur, Vesna, Pajić, Damir, "Effect of Ag doping on the morphological and magnetic properties of CuO nanostructures" in 6CSCS : 6th Serbian Ceramic Society Conference : programme and the book of abstracts; June 28-29; Belgrade (2022):72,
https://hdl.handle.net/21.15107/rcub_vinar_11504 .

TY  - JOUR
AU  - Lojpur, Vesna
AU  - Joschko, Maximilian
AU  - Graf, Christina
AU  - Radmilović, Nadežda
AU  - Novaković, Mirjana M.
AU  - Validžić, Ivana Lj.
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9955
AB  - Amorphous non-doped, iodine- and tin-doped Sb2S3 nanoparticles were prepared via the hot-injection method. HRTEM of amorphous undoped and doped samples revealed the formation of spherical nanoparticles of 20–50 nm diameter aggregated into clusters in the size of 100–200 nm. EDX analysis indicated the presence of desired elements in all observed samples. The bandgaps of non-doped and doped samples were determined from the reflectance spectra, and variations of the bandgaps, even small ones, are insufficient indications of doping. These uncertainties are further clarified by investigating crystalline undoped and doped samples in addition to the amorphous ones. XRPD results of the amorphous samples confirmed the amorphous structure, while Le Bail refinements of the crystalline samples show well-defined peaks from only the Sb2S3 phase, indicating a successful doping process. XPS measurements revealed that the phase of the undoped sample is free of impurities and that 3 d peaks of iodine and tin in the doped samples are present. The XPS valence bands shifted towards higher (I) or lower (Sn) binding energies compared to the undoped samples for both amorphous and crystalline samples, which is an additional support that incorporation of dopant ions in the Sb2S3 lattice took place.
T2  - Materials Science in Semiconductor Processing
T1  - Structural, morphological, optical, and electronic properties of amorphous non-doped and I and Sn doped Sb2S3 nanoparticles
VL  - 137
SP  - 106196
DO  - 10.1016/j.mssp.2021.106196
ER  - 

@article{
author = "Lojpur, Vesna and Joschko, Maximilian and Graf, Christina and Radmilović, Nadežda and Novaković, Mirjana M. and Validžić, Ivana Lj.",
year = "2022",
abstract = "Amorphous non-doped, iodine- and tin-doped Sb2S3 nanoparticles were prepared via the hot-injection method. HRTEM of amorphous undoped and doped samples revealed the formation of spherical nanoparticles of 20–50 nm diameter aggregated into clusters in the size of 100–200 nm. EDX analysis indicated the presence of desired elements in all observed samples. The bandgaps of non-doped and doped samples were determined from the reflectance spectra, and variations of the bandgaps, even small ones, are insufficient indications of doping. These uncertainties are further clarified by investigating crystalline undoped and doped samples in addition to the amorphous ones. XRPD results of the amorphous samples confirmed the amorphous structure, while Le Bail refinements of the crystalline samples show well-defined peaks from only the Sb2S3 phase, indicating a successful doping process. XPS measurements revealed that the phase of the undoped sample is free of impurities and that 3 d peaks of iodine and tin in the doped samples are present. The XPS valence bands shifted towards higher (I) or lower (Sn) binding energies compared to the undoped samples for both amorphous and crystalline samples, which is an additional support that incorporation of dopant ions in the Sb2S3 lattice took place.",
journal = "Materials Science in Semiconductor Processing",
title = "Structural, morphological, optical, and electronic properties of amorphous non-doped and I and Sn doped Sb2S3 nanoparticles",
volume = "137",
pages = "106196",
doi = "10.1016/j.mssp.2021.106196"
}

Lojpur, V., Joschko, M., Graf, C., Radmilović, N., Novaković, M. M.,& Validžić, I. Lj.. (2022). Structural, morphological, optical, and electronic properties of amorphous non-doped and I and Sn doped Sb2S3 nanoparticles. in Materials Science in Semiconductor Processing, 137, 106196.
https://doi.org/10.1016/j.mssp.2021.106196

Lojpur V, Joschko M, Graf C, Radmilović N, Novaković MM, Validžić IL. Structural, morphological, optical, and electronic properties of amorphous non-doped and I and Sn doped Sb2S3 nanoparticles. in Materials Science in Semiconductor Processing. 2022;137:106196.
doi:10.1016/j.mssp.2021.106196 .

Lojpur, Vesna, Joschko, Maximilian, Graf, Christina, Radmilović, Nadežda, Novaković, Mirjana M., Validžić, Ivana Lj., "Structural, morphological, optical, and electronic properties of amorphous non-doped and I and Sn doped Sb2S3 nanoparticles" in Materials Science in Semiconductor Processing, 137 (2022):106196,
https://doi.org/10.1016/j.mssp.2021.106196 . .

TY  - CONF
AU  - Radmilović, Nadežda
AU  - Stamenković, Tijana
AU  - Lojpur, Vesna
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12862
AB  - Luminescent materials emit radiation when exposed to various types of excitation (ultraviolet radiation, X-rays, electron beam, etc.) and can be comprised of a host lattice with dopant as an activator. One of the extensively investigated luminescent materials is monoclinic Ln2 MoO6 due to its high thermal stability. In this study, we investigated Ln2MoO 6 with different concentrations of Er 3+ /Yb3+ concentrations synthetized at temperatures up to 1200o C. The obtained powders were 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 Ln2 MoO6 , with particle size in the nano range at lower treatment temperatures (up to 800 o C) and in the micro range at higher calcination temperatures (up to 1200 o C). Both Y 2 MoO 6 :Yb3+ /Er 3+ and Gd2 MoO 6 : Yb3+ /Er 3+ show double emitting luminescence two green emission bands at 525 and 546 nm (2 H 11/2 , 4 S 3/2 → 4 I 15/2 ) as well as a red emission band at 657 nm ( 4 F 9/2 → 4 I 15/2 ). It can be concluded that increase of Yb3+ concentration leads to change of the green to red ratio showing the ability for fine-tuning of the color output.
PB  - Belgrade : Vinča Institute of Nuclear Sciences - National Institute of thе Republic of Serbia, University of Belgrade
PB  - Belgrade : Serbian Society for Innovative Materials in Extreme Conditions (SIM-EXTREME)
C3  - Program and Book of abstracts of the 1st Intentational conference on innovativ materials in extreme conditions IMEC2022
T1  - Influence of host lattice on luminescence properties of up-conversion Ln2MoO6 (Ln=Y, Gd) powders co-doped with Er3+/Yb3+ synthesized at high temperatures
SP  - 62
EP  - 62
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12862
ER  - 

@conference{
author = "Radmilović, Nadežda and Stamenković, Tijana and Lojpur, Vesna",
year = "2022",
abstract = "Luminescent materials emit radiation when exposed to various types of excitation (ultraviolet radiation, X-rays, electron beam, etc.) and can be comprised of a host lattice with dopant as an activator. One of the extensively investigated luminescent materials is monoclinic Ln2 MoO6 due to its high thermal stability. In this study, we investigated Ln2MoO 6 with different concentrations of Er 3+ /Yb3+ concentrations synthetized at temperatures up to 1200o C. The obtained powders were 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 Ln2 MoO6 , with particle size in the nano range at lower treatment temperatures (up to 800 o C) and in the micro range at higher calcination temperatures (up to 1200 o C). Both Y 2 MoO 6 :Yb3+ /Er 3+ and Gd2 MoO 6 : Yb3+ /Er 3+ show double emitting luminescence two green emission bands at 525 and 546 nm (2 H 11/2 , 4 S 3/2 → 4 I 15/2 ) as well as a red emission band at 657 nm ( 4 F 9/2 → 4 I 15/2 ). It can be concluded that increase of Yb3+ concentration leads to change of the green to red ratio showing the ability for fine-tuning of the color output.",
publisher = "Belgrade : Vinča Institute of Nuclear Sciences - National Institute of thе Republic of Serbia, University of Belgrade, Belgrade : Serbian Society for Innovative Materials in Extreme Conditions (SIM-EXTREME)",
journal = "Program and Book of abstracts of the 1st Intentational conference on innovativ materials in extreme conditions IMEC2022",
title = "Influence of host lattice on luminescence properties of up-conversion Ln2MoO6 (Ln=Y, Gd) powders co-doped with Er3+/Yb3+ synthesized at high temperatures",
pages = "62-62",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12862"
}

Radmilović, N., Stamenković, T.,& Lojpur, V.. (2022). Influence of host lattice on luminescence properties of up-conversion Ln2MoO6 (Ln=Y, Gd) powders co-doped with Er3+/Yb3+ synthesized at high temperatures. in Program and Book of abstracts of the 1st Intentational conference on innovativ materials in extreme conditions IMEC2022
Belgrade : Vinča Institute of Nuclear Sciences - National Institute of thе Republic of Serbia, University of Belgrade., 62-62.
https://hdl.handle.net/21.15107/rcub_vinar_12862

Radmilović N, Stamenković T, Lojpur V. Influence of host lattice on luminescence properties of up-conversion Ln2MoO6 (Ln=Y, Gd) powders co-doped with Er3+/Yb3+ synthesized at high temperatures. in Program and Book of abstracts of the 1st Intentational conference on innovativ materials in extreme conditions IMEC2022. 2022;:62-62.
https://hdl.handle.net/21.15107/rcub_vinar_12862 .

Radmilović, Nadežda, Stamenković, Tijana, Lojpur, Vesna, "Influence of host lattice on luminescence properties of up-conversion Ln2MoO6 (Ln=Y, Gd) powders co-doped with Er3+/Yb3+ synthesized at high temperatures" in Program and Book of abstracts of the 1st Intentational conference on innovativ materials in extreme conditions IMEC2022 (2022):62-62,
https://hdl.handle.net/21.15107/rcub_vinar_12862 .

TY  - CONF
AU  - Stamenković, Tijana
AU  - Popović, Maja
AU  - Pjević, Dejan
AU  - Čebela, Maria
AU  - Lojpur, Vesna
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11508
AB  - In this study, we present surface examination and investigation of the photocatalytic activity of a newly synthesized down-conversion luminescent nanomaterial SrGd2O4 doped with Dy3+ ions. Samples were prepared via glycineassisted combustion method, were formed gel was firstly burned at 500 °C for 1.5 h and then calcined at 1000 °C for 2.5 h. To see the crystallinity and phase purity, Xray diffraction (XRD) measurements were performed and showed that doped sample crystallizes as a single phase with the orthorhombic lattice of SrGd2O4. Luminescent characterization indicated presence of all appropriate emission peaks related to Dy3+ dopant ions. X-ray photoelectron spectroscopy (XPS) was used to investigate surface composition and survey spectra confirmed presence of expected elements (Sr, Gd, O and Dy). Photocatalytic properties of SrGd2O4:Dy were explored in the photocatalytic degradation of organic dye methyl orange (MO) under simulated solar light irradiation. UV/Vis spectrometer was used to measure a decrease in MO concentration in water solutions during the experiment. Aliquots of the working solutions were taken at the exact time intervals, and the results indicate successful dye decomposition rate after 4 h.
PB  - University of Belgrade : Institute for Multidisciplinary Research
C3  - 6CSCS : 6th Serbian Ceramic Society Conference : programme and the book of abstracts; June 28-29; Belgrade
T1  - Surface characterization and photocatalytic activity of newly synthesized Dy doped SrGd2O4 phosphorus
SP  - 61
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11508
ER  - 

@conference{
author = "Stamenković, Tijana and Popović, Maja and Pjević, Dejan and Čebela, Maria and Lojpur, Vesna",
year = "2022",
abstract = "In this study, we present surface examination and investigation of the photocatalytic activity of a newly synthesized down-conversion luminescent nanomaterial SrGd2O4 doped with Dy3+ ions. Samples were prepared via glycineassisted combustion method, were formed gel was firstly burned at 500 °C for 1.5 h and then calcined at 1000 °C for 2.5 h. To see the crystallinity and phase purity, Xray diffraction (XRD) measurements were performed and showed that doped sample crystallizes as a single phase with the orthorhombic lattice of SrGd2O4. Luminescent characterization indicated presence of all appropriate emission peaks related to Dy3+ dopant ions. X-ray photoelectron spectroscopy (XPS) was used to investigate surface composition and survey spectra confirmed presence of expected elements (Sr, Gd, O and Dy). Photocatalytic properties of SrGd2O4:Dy were explored in the photocatalytic degradation of organic dye methyl orange (MO) under simulated solar light irradiation. UV/Vis spectrometer was used to measure a decrease in MO concentration in water solutions during the experiment. Aliquots of the working solutions were taken at the exact time intervals, and the results indicate successful dye decomposition rate after 4 h.",
publisher = "University of Belgrade : Institute for Multidisciplinary Research",
journal = "6CSCS : 6th Serbian Ceramic Society Conference : programme and the book of abstracts; June 28-29; Belgrade",
title = "Surface characterization and photocatalytic activity of newly synthesized Dy doped SrGd2O4 phosphorus",
pages = "61",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11508"
}

Stamenković, T., Popović, M., Pjević, D., Čebela, M.,& Lojpur, V.. (2022). Surface characterization and photocatalytic activity of newly synthesized Dy doped SrGd2O4 phosphorus. in 6CSCS : 6th Serbian Ceramic Society Conference : programme and the book of abstracts; June 28-29; Belgrade
University of Belgrade : Institute for Multidisciplinary Research., 61.
https://hdl.handle.net/21.15107/rcub_vinar_11508

Stamenković T, Popović M, Pjević D, Čebela M, Lojpur V. Surface characterization and photocatalytic activity of newly synthesized Dy doped SrGd2O4 phosphorus. in 6CSCS : 6th Serbian Ceramic Society Conference : programme and the book of abstracts; June 28-29; Belgrade. 2022;:61.
https://hdl.handle.net/21.15107/rcub_vinar_11508 .

Stamenković, Tijana, Popović, Maja, Pjević, Dejan, Čebela, Maria, Lojpur, Vesna, "Surface characterization and photocatalytic activity of newly synthesized Dy doped SrGd2O4 phosphorus" in 6CSCS : 6th Serbian Ceramic Society Conference : programme and the book of abstracts; June 28-29; Belgrade (2022):61,
https://hdl.handle.net/21.15107/rcub_vinar_11508 .