Materials of Reduced Dimensions for Efficient Light Harvesting and Energy conversion

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Materials of Reduced Dimensions for Efficient Light Harvesting and Energy conversion (en)
Материјали редуковане димензионалности за ефикасну апсорпцију светлости и конверзију енергије (sr)
Materijali redukovane dimenzionalnosti za efikasnu apsorpciju svetlosti i konverziju energije (sr_RS)
Authors

Publications

Preservation of hemp flour using high‐energy ionizing radiation: The effect of gamma radiation on aflatoxin inactivation, microbiological properties, and nutritional values

Vujčić, Ivica; Mašić, Slobodan

(2021)

TY  - JOUR
AU  - Vujčić, Ivica
AU  - Mašić, Slobodan
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9559
AB  - Aflatoxins are natural mycotoxins that mainly occur in areas with humid climates. One of the methods for the successful elimination of aflatoxins is gamma radiation treatment. In this paper, gamma radiation's influence on the content of aflatoxins in hemp flour and microbiological properties (total number of microorganisms, molds, and potentially pathogenic bacteria) and nutritional values were investigated. The artificial radioactive isotope of cobalt Co-60, with a dose rate of 10 kGy/hr, was used as the radiation source. Using high-performance liquid chromatography, we determined that a dose of 4 kGy was sufficient to eliminate aflatoxins below the acceptable value. An irradiation dose of 8 kGy was sufficient to eliminate the total number of microorganisms and molds. Also, a treatment of 3 kGy is enough to remove all bacteria. Finally, it was shown that gamma irradiation does not affect the nutritional value of the product. Novelty Impact Statement: Hemp flour is rich in healthy fats, magnesium, fiber, and protein. However, it may be contaminated with aflatoxins, microorganisms, molds, and potentially pathogenic bacteria. Gamma irradiation is an effective method of food preservation that guarantees food decontamination and protection of nutrients. In this paper, an adequate dose of gamma radiation to preserve hemp flour has been established. © 2021 Wiley Periodicals LLC.
T2  - Journal of Food Processing and Preservation
T1  - Preservation of hemp flour using high‐energy ionizing radiation: The effect of gamma radiation on aflatoxin inactivation, microbiological properties, and nutritional values
VL  - 45
IS  - 4
DO  - 10.1111/jfpp.15314
ER  - 
@article{
author = "Vujčić, Ivica and Mašić, Slobodan",
year = "2021",
abstract = "Aflatoxins are natural mycotoxins that mainly occur in areas with humid climates. One of the methods for the successful elimination of aflatoxins is gamma radiation treatment. In this paper, gamma radiation's influence on the content of aflatoxins in hemp flour and microbiological properties (total number of microorganisms, molds, and potentially pathogenic bacteria) and nutritional values were investigated. The artificial radioactive isotope of cobalt Co-60, with a dose rate of 10 kGy/hr, was used as the radiation source. Using high-performance liquid chromatography, we determined that a dose of 4 kGy was sufficient to eliminate aflatoxins below the acceptable value. An irradiation dose of 8 kGy was sufficient to eliminate the total number of microorganisms and molds. Also, a treatment of 3 kGy is enough to remove all bacteria. Finally, it was shown that gamma irradiation does not affect the nutritional value of the product. Novelty Impact Statement: Hemp flour is rich in healthy fats, magnesium, fiber, and protein. However, it may be contaminated with aflatoxins, microorganisms, molds, and potentially pathogenic bacteria. Gamma irradiation is an effective method of food preservation that guarantees food decontamination and protection of nutrients. In this paper, an adequate dose of gamma radiation to preserve hemp flour has been established. © 2021 Wiley Periodicals LLC.",
journal = "Journal of Food Processing and Preservation",
title = "Preservation of hemp flour using high‐energy ionizing radiation: The effect of gamma radiation on aflatoxin inactivation, microbiological properties, and nutritional values",
volume = "45",
number = "4",
doi = "10.1111/jfpp.15314"
}
Vujčić, I.,& Mašić, S.. (2021). Preservation of hemp flour using high‐energy ionizing radiation: The effect of gamma radiation on aflatoxin inactivation, microbiological properties, and nutritional values. in Journal of Food Processing and Preservation, 45(4).
https://doi.org/10.1111/jfpp.15314
Vujčić I, Mašić S. Preservation of hemp flour using high‐energy ionizing radiation: The effect of gamma radiation on aflatoxin inactivation, microbiological properties, and nutritional values. in Journal of Food Processing and Preservation. 2021;45(4).
doi:10.1111/jfpp.15314 .
Vujčić, Ivica, Mašić, Slobodan, "Preservation of hemp flour using high‐energy ionizing radiation: The effect of gamma radiation on aflatoxin inactivation, microbiological properties, and nutritional values" in Journal of Food Processing and Preservation, 45, no. 4 (2021),
https://doi.org/10.1111/jfpp.15314 . .
1

PVDF-HFP/NKBT composite dielectrics: Perovskite particles induce the appearance of an additional dielectric relaxation process in ferroelectric polymer matrix

Pavlović, Vera P.; Tošić, Dragana; Dojčilović, Radovan; Dudić, Duško; Dramićanin, Miroslav; Medić, Mina; McPherson, Michael M.; Pavlović, Vladimir B.; Vlahović, Branislav; Đoković, Vladimir

(2021)

TY  - JOUR
AU  - Pavlović, Vera P.
AU  - Tošić, Dragana
AU  - Dojčilović, Radovan
AU  - Dudić, Duško
AU  - Dramićanin, Miroslav
AU  - Medić, Mina
AU  - McPherson, Michael M.
AU  - Pavlović, Vladimir B.
AU  - Vlahović, Branislav
AU  - Đoković, Vladimir
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9563
AB  - Na0.25K0.25Bi0.5TiO3 (NKBT) perovskite particles are synthesized by solid-state method and used as a filler for polyvinylidene fluoride-co-hexafluoropropylene (PVDF-HFP) co-polymer. X-ray diffraction analysis of NKBT powders shows that the particles have a rhombohedral perovskite crystal structure (R3c symmetry). Raman spectroscopy reveals that the co-polymer crystallizes predominantly into the mixture of polar β- and γ-crystals, while there is also a contribution of the non-polar α-crystal phase. The introduction of the NKBT into the PVDF-HFP results with an increase in effective dielectric permittivity and this effect depends on the inorganic content in the composite. The most interesting result of the present study is that the introduction of NKBT particles induces the appearance of an additional transition peak in the dielectric spectra of the co-polymer matrix. At the fixed frequency of ~2 kHz, the observed process appears at ~10 °C (about 45° above the glass transition temperature) and its magnitude strongly depends on the amount of the NKBT in the composite. Dielectric spectroscopy measurements of the composites are carried out in the wide range of frequencies (from 0.1 Hz to 1 MHz) and temperatures (from −100 to 100 °C). They reveal that the novel process can be clearly distinguished in the frequency range between 160 Hz and ~50 kHz. © 2021 The Authors
T2  - Polymer Testing
T1  - PVDF-HFP/NKBT composite dielectrics: Perovskite particles induce the appearance of an additional dielectric relaxation process in ferroelectric polymer matrix
VL  - 96
SP  - 107093
DO  - 10.1016/j.polymertesting.2021.107093
ER  - 
@article{
author = "Pavlović, Vera P. and Tošić, Dragana and Dojčilović, Radovan and Dudić, Duško and Dramićanin, Miroslav and Medić, Mina and McPherson, Michael M. and Pavlović, Vladimir B. and Vlahović, Branislav and Đoković, Vladimir",
year = "2021",
abstract = "Na0.25K0.25Bi0.5TiO3 (NKBT) perovskite particles are synthesized by solid-state method and used as a filler for polyvinylidene fluoride-co-hexafluoropropylene (PVDF-HFP) co-polymer. X-ray diffraction analysis of NKBT powders shows that the particles have a rhombohedral perovskite crystal structure (R3c symmetry). Raman spectroscopy reveals that the co-polymer crystallizes predominantly into the mixture of polar β- and γ-crystals, while there is also a contribution of the non-polar α-crystal phase. The introduction of the NKBT into the PVDF-HFP results with an increase in effective dielectric permittivity and this effect depends on the inorganic content in the composite. The most interesting result of the present study is that the introduction of NKBT particles induces the appearance of an additional transition peak in the dielectric spectra of the co-polymer matrix. At the fixed frequency of ~2 kHz, the observed process appears at ~10 °C (about 45° above the glass transition temperature) and its magnitude strongly depends on the amount of the NKBT in the composite. Dielectric spectroscopy measurements of the composites are carried out in the wide range of frequencies (from 0.1 Hz to 1 MHz) and temperatures (from −100 to 100 °C). They reveal that the novel process can be clearly distinguished in the frequency range between 160 Hz and ~50 kHz. © 2021 The Authors",
journal = "Polymer Testing",
title = "PVDF-HFP/NKBT composite dielectrics: Perovskite particles induce the appearance of an additional dielectric relaxation process in ferroelectric polymer matrix",
volume = "96",
pages = "107093",
doi = "10.1016/j.polymertesting.2021.107093"
}
Pavlović, V. P., Tošić, D., Dojčilović, R., Dudić, D., Dramićanin, M., Medić, M., McPherson, M. M., Pavlović, V. B., Vlahović, B.,& Đoković, V.. (2021). PVDF-HFP/NKBT composite dielectrics: Perovskite particles induce the appearance of an additional dielectric relaxation process in ferroelectric polymer matrix. in Polymer Testing, 96, 107093.
https://doi.org/10.1016/j.polymertesting.2021.107093
Pavlović VP, Tošić D, Dojčilović R, Dudić D, Dramićanin M, Medić M, McPherson MM, Pavlović VB, Vlahović B, Đoković V. PVDF-HFP/NKBT composite dielectrics: Perovskite particles induce the appearance of an additional dielectric relaxation process in ferroelectric polymer matrix. in Polymer Testing. 2021;96:107093.
doi:10.1016/j.polymertesting.2021.107093 .
Pavlović, Vera P., Tošić, Dragana, Dojčilović, Radovan, Dudić, Duško, Dramićanin, Miroslav, Medić, Mina, McPherson, Michael M., Pavlović, Vladimir B., Vlahović, Branislav, Đoković, Vladimir, "PVDF-HFP/NKBT composite dielectrics: Perovskite particles induce the appearance of an additional dielectric relaxation process in ferroelectric polymer matrix" in Polymer Testing, 96 (2021):107093,
https://doi.org/10.1016/j.polymertesting.2021.107093 . .
1

Nano-silica-based urea–formaldehyde composite with some derivates of coumarin as formaldehyde scavenger: hydrolytical and thermal stability

Jovanović, Vojislav; Samaržija-Jovanović, Suzana; Petković, Branka B.; Jovanović, Slaviša; Marković, Gordana; Porobić, Slavica; Marinović-Cincović, Milena

(2021)

TY  - JOUR
AU  - Jovanović, Vojislav
AU  - Samaržija-Jovanović, Suzana
AU  - Petković, Branka B.
AU  - Jovanović, Slaviša
AU  - Marković, Gordana
AU  - Porobić, Slavica
AU  - Marinović-Cincović, Milena
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8907
AB  - The hydrolytic stability of two nano-SiO2-based UF composites with derivates of coumarin (names as K-1 and K-2) was investigated. K-1 is 3-nitro-4-(p-tolylamino)-2H-chromen-2-one and K-2: 4-((3-nitro-2-oxo-2H-chromen-4-yl)amino)benzenesulfonamide. Two types of nano-silica-based urea–formaldehyde (UF), composite materials with a formaldehyde-to-urea (F/U) ratio of 0.8, were synthesized (UF/K-1/SiO2, and UF/K-2/SiO2). The hydrolytic stability of modified UF composite was determined by measuring the mass loss and liberated formaldehyde concentration of modified UF composite after acid hydrolysis. Obtained results showed that the hydrolytic stability of modified resins with derivates of coumarin was enhanced. The formaldehyde emission of modified UF/K-1/SiO2 composite is lower compared with UF/K-2/SiO2 composite. The thermal behavior of materials was studied by non-isothermal thermo-gravimetric analysis and differential thermal gravimetry supported by data from ATR-IR spectroscopy. The shift of temperature values for selected mass losses (T5%) to a high temperature indicates the increase in thermal stability of samples based on UF resin modified with K-2. © 2020, Springer-Verlag GmbH Germany, part of Springer Nature.
T2  - Polymer Bulletin
T1  - Nano-silica-based urea–formaldehyde composite with some derivates of coumarin as formaldehyde scavenger: hydrolytical and thermal stability
VL  - 78
IS  - 1
SP  - 399
EP  - 413
DO  - 10.1007/s00289-020-03114-6
ER  - 
@article{
author = "Jovanović, Vojislav and Samaržija-Jovanović, Suzana and Petković, Branka B. and Jovanović, Slaviša and Marković, Gordana and Porobić, Slavica and Marinović-Cincović, Milena",
year = "2021",
abstract = "The hydrolytic stability of two nano-SiO2-based UF composites with derivates of coumarin (names as K-1 and K-2) was investigated. K-1 is 3-nitro-4-(p-tolylamino)-2H-chromen-2-one and K-2: 4-((3-nitro-2-oxo-2H-chromen-4-yl)amino)benzenesulfonamide. Two types of nano-silica-based urea–formaldehyde (UF), composite materials with a formaldehyde-to-urea (F/U) ratio of 0.8, were synthesized (UF/K-1/SiO2, and UF/K-2/SiO2). The hydrolytic stability of modified UF composite was determined by measuring the mass loss and liberated formaldehyde concentration of modified UF composite after acid hydrolysis. Obtained results showed that the hydrolytic stability of modified resins with derivates of coumarin was enhanced. The formaldehyde emission of modified UF/K-1/SiO2 composite is lower compared with UF/K-2/SiO2 composite. The thermal behavior of materials was studied by non-isothermal thermo-gravimetric analysis and differential thermal gravimetry supported by data from ATR-IR spectroscopy. The shift of temperature values for selected mass losses (T5%) to a high temperature indicates the increase in thermal stability of samples based on UF resin modified with K-2. © 2020, Springer-Verlag GmbH Germany, part of Springer Nature.",
journal = "Polymer Bulletin",
title = "Nano-silica-based urea–formaldehyde composite with some derivates of coumarin as formaldehyde scavenger: hydrolytical and thermal stability",
volume = "78",
number = "1",
pages = "399-413",
doi = "10.1007/s00289-020-03114-6"
}
Jovanović, V., Samaržija-Jovanović, S., Petković, B. B., Jovanović, S., Marković, G., Porobić, S.,& Marinović-Cincović, M.. (2021). Nano-silica-based urea–formaldehyde composite with some derivates of coumarin as formaldehyde scavenger: hydrolytical and thermal stability. in Polymer Bulletin, 78(1), 399-413.
https://doi.org/10.1007/s00289-020-03114-6
Jovanović V, Samaržija-Jovanović S, Petković BB, Jovanović S, Marković G, Porobić S, Marinović-Cincović M. Nano-silica-based urea–formaldehyde composite with some derivates of coumarin as formaldehyde scavenger: hydrolytical and thermal stability. in Polymer Bulletin. 2021;78(1):399-413.
doi:10.1007/s00289-020-03114-6 .
Jovanović, Vojislav, Samaržija-Jovanović, Suzana, Petković, Branka B., Jovanović, Slaviša, Marković, Gordana, Porobić, Slavica, Marinović-Cincović, Milena, "Nano-silica-based urea–formaldehyde composite with some derivates of coumarin as formaldehyde scavenger: hydrolytical and thermal stability" in Polymer Bulletin, 78, no. 1 (2021):399-413,
https://doi.org/10.1007/s00289-020-03114-6 . .

Preparation of beechwood/polymer composites using the method of lyophilization and gamma irradiation

Vujčić, Ivica; Mašić, Slobodan; Obradović, Nataša; Dramićanin, Miroslav

(2020)

TY  - CONF
AU  - Vujčić, Ivica
AU  - Mašić, Slobodan
AU  - Obradović, Nataša
AU  - Dramićanin, Miroslav
PY  - 2020
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/8519
AB  - Wooden cultural heritage serves as a very important source of information for historians and researchers. Also, it imposes an obligation on the science to keep this legacy for future generations in a proper condition. Among other techniques of conservation of wooden cultural heritage, a very suitable method is impregnation of the wood with the polymer, whereby the wood/polymer composites are formed. This paper describes the method of preparing the wood/polymer composites based on beechwood, using five different monomer systems. The method of lyophilization and subsequent polymerization by gamma radiation was used. After lyophilization and immersing in the monomer solutions, the wood samples were dried and irradiated with a dose of 25 kGy and different gamma irradiation dose rates. The weight of the samples before and after this procedure was measured. Also, changes in the mechanical properties of wood (compression test) before and after treatment were examined. We also examined the effect of radiation dose rate on polymerization. Based on the weight differences, dose rates and materials characterization we determined which of the monomer solution and dose rate are the most suitable for making beechwood/polymer composites. © 2019 Elsevier Ltd
C3  - Radiation Physics and Chemistry
T1  - Preparation of beechwood/polymer composites using the method of lyophilization and gamma irradiation
VL  - 166
SP  - 108505
DO  - 10.1016/j.radphyschem.2019.108505
ER  - 
@conference{
author = "Vujčić, Ivica and Mašić, Slobodan and Obradović, Nataša and Dramićanin, Miroslav",
year = "2020",
abstract = "Wooden cultural heritage serves as a very important source of information for historians and researchers. Also, it imposes an obligation on the science to keep this legacy for future generations in a proper condition. Among other techniques of conservation of wooden cultural heritage, a very suitable method is impregnation of the wood with the polymer, whereby the wood/polymer composites are formed. This paper describes the method of preparing the wood/polymer composites based on beechwood, using five different monomer systems. The method of lyophilization and subsequent polymerization by gamma radiation was used. After lyophilization and immersing in the monomer solutions, the wood samples were dried and irradiated with a dose of 25 kGy and different gamma irradiation dose rates. The weight of the samples before and after this procedure was measured. Also, changes in the mechanical properties of wood (compression test) before and after treatment were examined. We also examined the effect of radiation dose rate on polymerization. Based on the weight differences, dose rates and materials characterization we determined which of the monomer solution and dose rate are the most suitable for making beechwood/polymer composites. © 2019 Elsevier Ltd",
journal = "Radiation Physics and Chemistry",
title = "Preparation of beechwood/polymer composites using the method of lyophilization and gamma irradiation",
volume = "166",
pages = "108505",
doi = "10.1016/j.radphyschem.2019.108505"
}
Vujčić, I., Mašić, S., Obradović, N.,& Dramićanin, M.. (2020). Preparation of beechwood/polymer composites using the method of lyophilization and gamma irradiation. in Radiation Physics and Chemistry, 166, 108505.
https://doi.org/10.1016/j.radphyschem.2019.108505
Vujčić I, Mašić S, Obradović N, Dramićanin M. Preparation of beechwood/polymer composites using the method of lyophilization and gamma irradiation. in Radiation Physics and Chemistry. 2020;166:108505.
doi:10.1016/j.radphyschem.2019.108505 .
Vujčić, Ivica, Mašić, Slobodan, Obradović, Nataša, Dramićanin, Miroslav, "Preparation of beechwood/polymer composites using the method of lyophilization and gamma irradiation" in Radiation Physics and Chemistry, 166 (2020):108505,
https://doi.org/10.1016/j.radphyschem.2019.108505 . .
1
1
1

Effect of Fe3+ ion doping on photocatalytic ability of nanozirconia ceramic to degrade 2, 4, 6- trichlorophenol

Carević, Milica V.; Savić, Tatjana D.; Abazović, Nadica; Mojović, Miloš D.; Novaković, Tatjana B.; Čomor, Mirjana

(2020)

TY  - JOUR
AU  - Carević, Milica V.
AU  - Savić, Tatjana D.
AU  - Abazović, Nadica
AU  - Mojović, Miloš D.
AU  - Novaković, Tatjana B.
AU  - Čomor, Mirjana
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8807
AB  - Pure and a series of Fe3+ doped zirconia nanopowders were synthesized combining colloidal chemistry and solvothermal method from organometallic precursors in order to correlate doping and properties of zirconia matrix. After annealing of washed nanopowders at 600 °C, detailed characterization was performed using X-ray diffraction, UV/Vis absorption and luminescence, infrared and electron paramagnetic spectroscopy, transmission electron microscopy and BET measurements. Zirconia samples had mixed monoclinic and tetragonal crystalline phase; increasing Fe3+ ions concentration was followed by increasing of tetragonal phase share. In the sample with highest Fe3+ concentration, hematite can be detected. Also, UV/Vis spectrophotometry showed that Fe3+ doping lowers effective band gap of zirconia matrix from 4.5 eV (bulk value) to 2.1 eV for doped/nanocomposite samples. EPR measurements proved presence of dopant and showed that isolated Fe3+ ions in zirconia matrix exist in both crystalline phases; monoclinic and tetragonal (g 4.8 and g 4.27–4.2, respectively) surroundings. Zirconia samples were also successfully used as photocatalysts for photocatalytic degradation of 2, 4, 6, trichlorophenol. © 2019 Elsevier Ltd and Techna Group S.r.l.
T2  - Ceramics International
T1  - Effect of Fe3+ ion doping on photocatalytic ability of nanozirconia ceramic to degrade 2, 4, 6- trichlorophenol
VL  - 46
IS  - 5
SP  - 6820
EP  - 6827
DO  - 10.1016/j.ceramint.2019.11.175
ER  - 
@article{
author = "Carević, Milica V. and Savić, Tatjana D. and Abazović, Nadica and Mojović, Miloš D. and Novaković, Tatjana B. and Čomor, Mirjana",
year = "2020",
abstract = "Pure and a series of Fe3+ doped zirconia nanopowders were synthesized combining colloidal chemistry and solvothermal method from organometallic precursors in order to correlate doping and properties of zirconia matrix. After annealing of washed nanopowders at 600 °C, detailed characterization was performed using X-ray diffraction, UV/Vis absorption and luminescence, infrared and electron paramagnetic spectroscopy, transmission electron microscopy and BET measurements. Zirconia samples had mixed monoclinic and tetragonal crystalline phase; increasing Fe3+ ions concentration was followed by increasing of tetragonal phase share. In the sample with highest Fe3+ concentration, hematite can be detected. Also, UV/Vis spectrophotometry showed that Fe3+ doping lowers effective band gap of zirconia matrix from 4.5 eV (bulk value) to 2.1 eV for doped/nanocomposite samples. EPR measurements proved presence of dopant and showed that isolated Fe3+ ions in zirconia matrix exist in both crystalline phases; monoclinic and tetragonal (g 4.8 and g 4.27–4.2, respectively) surroundings. Zirconia samples were also successfully used as photocatalysts for photocatalytic degradation of 2, 4, 6, trichlorophenol. © 2019 Elsevier Ltd and Techna Group S.r.l.",
journal = "Ceramics International",
title = "Effect of Fe3+ ion doping on photocatalytic ability of nanozirconia ceramic to degrade 2, 4, 6- trichlorophenol",
volume = "46",
number = "5",
pages = "6820-6827",
doi = "10.1016/j.ceramint.2019.11.175"
}
Carević, M. V., Savić, T. D., Abazović, N., Mojović, M. D., Novaković, T. B.,& Čomor, M.. (2020). Effect of Fe3+ ion doping on photocatalytic ability of nanozirconia ceramic to degrade 2, 4, 6- trichlorophenol. in Ceramics International, 46(5), 6820-6827.
https://doi.org/10.1016/j.ceramint.2019.11.175
Carević MV, Savić TD, Abazović N, Mojović MD, Novaković TB, Čomor M. Effect of Fe3+ ion doping on photocatalytic ability of nanozirconia ceramic to degrade 2, 4, 6- trichlorophenol. in Ceramics International. 2020;46(5):6820-6827.
doi:10.1016/j.ceramint.2019.11.175 .
Carević, Milica V., Savić, Tatjana D., Abazović, Nadica, Mojović, Miloš D., Novaković, Tatjana B., Čomor, Mirjana, "Effect of Fe3+ ion doping on photocatalytic ability of nanozirconia ceramic to degrade 2, 4, 6- trichlorophenol" in Ceramics International, 46, no. 5 (2020):6820-6827,
https://doi.org/10.1016/j.ceramint.2019.11.175 . .
4
3
3

Simulated solar light driven performance of nanosized ZnIn2S4/dye system: decolourization vs. photodegradation

Savić, Tatjana D.; Carević, Milica V.; Mitrić, Miodrag; Kuljanin-Jakovljević, Jadranka Ž.; Abazović, Nadica; Čomor, Mirjana

(2020)

TY  - JOUR
AU  - Savić, Tatjana D.
AU  - Carević, Milica V.
AU  - Mitrić, Miodrag
AU  - Kuljanin-Jakovljević, Jadranka Ž.
AU  - Abazović, Nadica
AU  - Čomor, Mirjana
PY  - 2020
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/8617
AB  - Hexagonal ZnIn2S4 is synthesized by simple and low-cost hydrothermal route. TEM images revealed formation of nanosheets. The estimated band-gap energy of synthesized sample is in the visible spectral region and has a value of about 2.25 eV. Photocatalytic properties of synthesized sample are probed in photocatalytic degradation of three selected dyes different in nature and structure, Rhodamine B (RhB), Methylene blue (MB) and Methyl orange (MO), under the illumination with simulated Solar light. Obtained results revealed that photocatalytic degradation of RhB and MO is mainly result of synergic effect of photogenerated holes and oxygen, while primary effect in ZnIn2S4/MB system is bleaching of the dye, but no photodegradation was observed. © 2019 Elsevier B.V.
T2  - Journal of Photochemistry and Photobiology A: Chemistry
T1  - Simulated solar light driven performance of nanosized ZnIn2S4/dye system: decolourization vs. photodegradation
VL  - 388
SP  - 112154
DO  - 10.1016/j.jphotochem.2019.112154
ER  - 
@article{
author = "Savić, Tatjana D. and Carević, Milica V. and Mitrić, Miodrag and Kuljanin-Jakovljević, Jadranka Ž. and Abazović, Nadica and Čomor, Mirjana",
year = "2020",
abstract = "Hexagonal ZnIn2S4 is synthesized by simple and low-cost hydrothermal route. TEM images revealed formation of nanosheets. The estimated band-gap energy of synthesized sample is in the visible spectral region and has a value of about 2.25 eV. Photocatalytic properties of synthesized sample are probed in photocatalytic degradation of three selected dyes different in nature and structure, Rhodamine B (RhB), Methylene blue (MB) and Methyl orange (MO), under the illumination with simulated Solar light. Obtained results revealed that photocatalytic degradation of RhB and MO is mainly result of synergic effect of photogenerated holes and oxygen, while primary effect in ZnIn2S4/MB system is bleaching of the dye, but no photodegradation was observed. © 2019 Elsevier B.V.",
journal = "Journal of Photochemistry and Photobiology A: Chemistry",
title = "Simulated solar light driven performance of nanosized ZnIn2S4/dye system: decolourization vs. photodegradation",
volume = "388",
pages = "112154",
doi = "10.1016/j.jphotochem.2019.112154"
}
Savić, T. D., Carević, M. V., Mitrić, M., Kuljanin-Jakovljević, J. Ž., Abazović, N.,& Čomor, M.. (2020). Simulated solar light driven performance of nanosized ZnIn2S4/dye system: decolourization vs. photodegradation. in Journal of Photochemistry and Photobiology A: Chemistry, 388, 112154.
https://doi.org/10.1016/j.jphotochem.2019.112154
Savić TD, Carević MV, Mitrić M, Kuljanin-Jakovljević JŽ, Abazović N, Čomor M. Simulated solar light driven performance of nanosized ZnIn2S4/dye system: decolourization vs. photodegradation. in Journal of Photochemistry and Photobiology A: Chemistry. 2020;388:112154.
doi:10.1016/j.jphotochem.2019.112154 .
Savić, Tatjana D., Carević, Milica V., Mitrić, Miodrag, Kuljanin-Jakovljević, Jadranka Ž., Abazović, Nadica, Čomor, Mirjana, "Simulated solar light driven performance of nanosized ZnIn2S4/dye system: decolourization vs. photodegradation" in Journal of Photochemistry and Photobiology A: Chemistry, 388 (2020):112154,
https://doi.org/10.1016/j.jphotochem.2019.112154 . .
1
1
1

Structural and Luminescent Properties of Y2Mo4O15:Eu3+ Red Phosphor Calcined at Different Temperatures

Papan, Jelena; Ristić, Zoran; Ćirić, Aleksandar; Kuzman, Sanja; Dramićanin, Miroslav

(2020)

TY  - JOUR
AU  - Papan, Jelena
AU  - Ristić, Zoran
AU  - Ćirić, Aleksandar
AU  - Kuzman, Sanja
AU  - Dramićanin, Miroslav
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8901
AB  - The red phosphor Y2Mo4O15:Eu3+ calcined at different temperatures is obtained by a solid-state method, and is investigated in this article. Usage of solid-state method with the combination of five different calcination temperatures (500, 550, 600, 650, and 700 °C) leads to the formation of pure monoclinic phase in all samples apart from the one calcined at the lowest temperature. Crystallite size obtained by Rietveld refinement is in the range of 38–55 nm. Scanning electron microscopy analysis confirms the presence of agglomerates. Luminescence emission spectra and emission decay curves are measured for all pure samples, and parameters derived from these measurements are used for Judd–Ofelt analysis. International commission on illumination (CIE) chromaticity diagram confirms the presence of pure red emission and high quantum efficiency. © 2019 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
T2  - Physica Status Solidi. B: Basic Research
T1  - Structural and Luminescent Properties of Y2Mo4O15:Eu3+ Red Phosphor Calcined at Different Temperatures
VL  - 257
IS  - 8
SP  - 1900454
DO  - 10.1002/pssb.201900454
ER  - 
@article{
author = "Papan, Jelena and Ristić, Zoran and Ćirić, Aleksandar and Kuzman, Sanja and Dramićanin, Miroslav",
year = "2020",
abstract = "The red phosphor Y2Mo4O15:Eu3+ calcined at different temperatures is obtained by a solid-state method, and is investigated in this article. Usage of solid-state method with the combination of five different calcination temperatures (500, 550, 600, 650, and 700 °C) leads to the formation of pure monoclinic phase in all samples apart from the one calcined at the lowest temperature. Crystallite size obtained by Rietveld refinement is in the range of 38–55 nm. Scanning electron microscopy analysis confirms the presence of agglomerates. Luminescence emission spectra and emission decay curves are measured for all pure samples, and parameters derived from these measurements are used for Judd–Ofelt analysis. International commission on illumination (CIE) chromaticity diagram confirms the presence of pure red emission and high quantum efficiency. © 2019 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim",
journal = "Physica Status Solidi. B: Basic Research",
title = "Structural and Luminescent Properties of Y2Mo4O15:Eu3+ Red Phosphor Calcined at Different Temperatures",
volume = "257",
number = "8",
pages = "1900454",
doi = "10.1002/pssb.201900454"
}
Papan, J., Ristić, Z., Ćirić, A., Kuzman, S.,& Dramićanin, M.. (2020). Structural and Luminescent Properties of Y2Mo4O15:Eu3+ Red Phosphor Calcined at Different Temperatures. in Physica Status Solidi. B: Basic Research, 257(8), 1900454.
https://doi.org/10.1002/pssb.201900454
Papan J, Ristić Z, Ćirić A, Kuzman S, Dramićanin M. Structural and Luminescent Properties of Y2Mo4O15:Eu3+ Red Phosphor Calcined at Different Temperatures. in Physica Status Solidi. B: Basic Research. 2020;257(8):1900454.
doi:10.1002/pssb.201900454 .
Papan, Jelena, Ristić, Zoran, Ćirić, Aleksandar, Kuzman, Sanja, Dramićanin, Miroslav, "Structural and Luminescent Properties of Y2Mo4O15:Eu3+ Red Phosphor Calcined at Different Temperatures" in Physica Status Solidi. B: Basic Research, 257, no. 8 (2020):1900454,
https://doi.org/10.1002/pssb.201900454 . .
1
1
1

Luminescence Thermometry Using Dy3+-Activated Na0.25K0.25Bi0.5TiO3 Powders

Kuzman, Sanja; Medić, Mina M.; Đorđević, Vesna R.; Zeković, Ivana Lj.; Ristić, Zoran; Đačanin Far, Ljubica; Dramićanin, Miroslav

(2020)

TY  - JOUR
AU  - Kuzman, Sanja
AU  - Medić, Mina M.
AU  - Đorđević, Vesna R.
AU  - Zeković, Ivana Lj.
AU  - Ristić, Zoran
AU  - Đačanin Far, Ljubica
AU  - Dramićanin, Miroslav
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8936
AB  - When activated by Dy3+, Na0.25K0.25Bi0.50TiO3 (NKBT), piezoelectric powders show strong luminescence in the blue and yellow spectral range. Emissions of this material can be effectively utilized for both luminescence intensity ratio and lifetime-based readouts of temperature. Photoluminescence measurements over a temperature range of 293–483 K show that the luminescence intensity ratio temperature readout has maximal relative sensitivity of 1.93% K−1 at 380 K, while the relative sensitivity of the lifetime temperature readout reaches 1.1% K−1 at 480 K. For this study, materials were synthesized by a solid-state reaction using TiO2, Bi2O3, Na2CO3, K2CO3 and Dy2O3 as precursors. X-ray diffraction measurements showed that the NKBT sample crystallized in the A-site substituted distorted perovskite rhombohedral structure (R3c symmetry). The photoluminescence spectra showed characteristic emission bands of Dy3+ ions centered at 457 nm (4I15/2 → 6H15/2), 478 nm (4F9/2 → 6H15/2), 574 nm (4F9/2 → 6H13/2) and 663 nm (4F9/2 → 6H11/2). The ratio of emissions from 4F9/2 and 4I15/2 excited states to the 6H15/2 ground state was used as a luminescence intensity ratio indicator of temperature, while the decay of emission from 4F9/2 → 6H13/2 transition was used as a lifetime indicator of temperature. CIE coordinates x = 0.326 and y = 0.361 calculated from room temperature emission spectra show the perspective of this material for use in white light emission devices.
T2  - Journal of Electronic Materials
T1  - Luminescence Thermometry Using Dy3+-Activated Na0.25K0.25Bi0.5TiO3 Powders
VL  - 49
IS  - 6
SP  - 4002
EP  - 4009
DO  - 10.1007/s11664-020-08109-7
ER  - 
@article{
author = "Kuzman, Sanja and Medić, Mina M. and Đorđević, Vesna R. and Zeković, Ivana Lj. and Ristić, Zoran and Đačanin Far, Ljubica and Dramićanin, Miroslav",
year = "2020",
abstract = "When activated by Dy3+, Na0.25K0.25Bi0.50TiO3 (NKBT), piezoelectric powders show strong luminescence in the blue and yellow spectral range. Emissions of this material can be effectively utilized for both luminescence intensity ratio and lifetime-based readouts of temperature. Photoluminescence measurements over a temperature range of 293–483 K show that the luminescence intensity ratio temperature readout has maximal relative sensitivity of 1.93% K−1 at 380 K, while the relative sensitivity of the lifetime temperature readout reaches 1.1% K−1 at 480 K. For this study, materials were synthesized by a solid-state reaction using TiO2, Bi2O3, Na2CO3, K2CO3 and Dy2O3 as precursors. X-ray diffraction measurements showed that the NKBT sample crystallized in the A-site substituted distorted perovskite rhombohedral structure (R3c symmetry). The photoluminescence spectra showed characteristic emission bands of Dy3+ ions centered at 457 nm (4I15/2 → 6H15/2), 478 nm (4F9/2 → 6H15/2), 574 nm (4F9/2 → 6H13/2) and 663 nm (4F9/2 → 6H11/2). The ratio of emissions from 4F9/2 and 4I15/2 excited states to the 6H15/2 ground state was used as a luminescence intensity ratio indicator of temperature, while the decay of emission from 4F9/2 → 6H13/2 transition was used as a lifetime indicator of temperature. CIE coordinates x = 0.326 and y = 0.361 calculated from room temperature emission spectra show the perspective of this material for use in white light emission devices.",
journal = "Journal of Electronic Materials",
title = "Luminescence Thermometry Using Dy3+-Activated Na0.25K0.25Bi0.5TiO3 Powders",
volume = "49",
number = "6",
pages = "4002-4009",
doi = "10.1007/s11664-020-08109-7"
}
Kuzman, S., Medić, M. M., Đorđević, V. R., Zeković, I. Lj., Ristić, Z., Đačanin Far, L.,& Dramićanin, M.. (2020). Luminescence Thermometry Using Dy3+-Activated Na0.25K0.25Bi0.5TiO3 Powders. in Journal of Electronic Materials, 49(6), 4002-4009.
https://doi.org/10.1007/s11664-020-08109-7
Kuzman S, Medić MM, Đorđević VR, Zeković IL, Ristić Z, Đačanin Far L, Dramićanin M. Luminescence Thermometry Using Dy3+-Activated Na0.25K0.25Bi0.5TiO3 Powders. in Journal of Electronic Materials. 2020;49(6):4002-4009.
doi:10.1007/s11664-020-08109-7 .
Kuzman, Sanja, Medić, Mina M., Đorđević, Vesna R., Zeković, Ivana Lj., Ristić, Zoran, Đačanin Far, Ljubica, Dramićanin, Miroslav, "Luminescence Thermometry Using Dy3+-Activated Na0.25K0.25Bi0.5TiO3 Powders" in Journal of Electronic Materials, 49, no. 6 (2020):4002-4009,
https://doi.org/10.1007/s11664-020-08109-7 . .
1

Absorption and fluorescence spectral properties of azo dyes based on 3-amido-6-hydroxy-4-methyl-2-pyridone: Solvent and substituent effects

Porobić, Slavica; Božić, Bojan Đ.; Dramićanin, Miroslav; Vitnik, Vesna; Vitnik, Željko J.; Marinović-Cincović, Milena; Mijin, Dušan Ž.

(2020)

TY  - JOUR
AU  - Porobić, Slavica
AU  - Božić, Bojan Đ.
AU  - Dramićanin, Miroslav
AU  - Vitnik, Vesna
AU  - Vitnik, Željko J.
AU  - Marinović-Cincović, Milena
AU  - Mijin, Dušan Ž.
PY  - 2020
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/8475
AB  - A series of nine 5-(4-substituted phenylazo)-3-amido-6-hydroxy-4-methyl-2-pyridones were synthesized and characterized by FT–IR, 1H and 13C NMR, UV–Vis, and PL spectroscopy. Photophysical properties of the dyes were examined in solvents of various polarities and at different pH values. The solvent effects on the absorbance and emission spectral shift were analyzed using Lippert–Mataga, Reichardt–Dimroth and Kamlet-Taft equations. Moreover, UV–Vis absorption and emission frequencies were correlated with Hammett substituent constants applying the linear free energy relationships. DFT calculations of the investigated dyes were accomplished to determine their structural and electronic properties. © 2019
T2  - Dyes and Pigments
T1  - Absorption and fluorescence spectral properties of azo dyes based on 3-amido-6-hydroxy-4-methyl-2-pyridone: Solvent and substituent effects
VL  - 175
SP  - 108139
DO  - 10.1016/j.dyepig.2019.108139
ER  - 
@article{
author = "Porobić, Slavica and Božić, Bojan Đ. and Dramićanin, Miroslav and Vitnik, Vesna and Vitnik, Željko J. and Marinović-Cincović, Milena and Mijin, Dušan Ž.",
year = "2020",
abstract = "A series of nine 5-(4-substituted phenylazo)-3-amido-6-hydroxy-4-methyl-2-pyridones were synthesized and characterized by FT–IR, 1H and 13C NMR, UV–Vis, and PL spectroscopy. Photophysical properties of the dyes were examined in solvents of various polarities and at different pH values. The solvent effects on the absorbance and emission spectral shift were analyzed using Lippert–Mataga, Reichardt–Dimroth and Kamlet-Taft equations. Moreover, UV–Vis absorption and emission frequencies were correlated with Hammett substituent constants applying the linear free energy relationships. DFT calculations of the investigated dyes were accomplished to determine their structural and electronic properties. © 2019",
journal = "Dyes and Pigments",
title = "Absorption and fluorescence spectral properties of azo dyes based on 3-amido-6-hydroxy-4-methyl-2-pyridone: Solvent and substituent effects",
volume = "175",
pages = "108139",
doi = "10.1016/j.dyepig.2019.108139"
}
Porobić, S., Božić, B. Đ., Dramićanin, M., Vitnik, V., Vitnik, Ž. J., Marinović-Cincović, M.,& Mijin, D. Ž.. (2020). Absorption and fluorescence spectral properties of azo dyes based on 3-amido-6-hydroxy-4-methyl-2-pyridone: Solvent and substituent effects. in Dyes and Pigments, 175, 108139.
https://doi.org/10.1016/j.dyepig.2019.108139
Porobić S, Božić BĐ, Dramićanin M, Vitnik V, Vitnik ŽJ, Marinović-Cincović M, Mijin DŽ. Absorption and fluorescence spectral properties of azo dyes based on 3-amido-6-hydroxy-4-methyl-2-pyridone: Solvent and substituent effects. in Dyes and Pigments. 2020;175:108139.
doi:10.1016/j.dyepig.2019.108139 .
Porobić, Slavica, Božić, Bojan Đ., Dramićanin, Miroslav, Vitnik, Vesna, Vitnik, Željko J., Marinović-Cincović, Milena, Mijin, Dušan Ž., "Absorption and fluorescence spectral properties of azo dyes based on 3-amido-6-hydroxy-4-methyl-2-pyridone: Solvent and substituent effects" in Dyes and Pigments, 175 (2020):108139,
https://doi.org/10.1016/j.dyepig.2019.108139 . .
8
5
8

Judd-Ofelt parametrization from emission spectra: The case study of the Eu3+ 5D1 emitting level

Ćirić, Aleksandar; Stojadinović, Stevan; Brik, Mikhail G.; Dramićanin, Miroslav

(2020)

TY  - JOUR
AU  - Ćirić, Aleksandar
AU  - Stojadinović, Stevan
AU  - Brik, Mikhail G.
AU  - Dramićanin, Miroslav
PY  - 2020
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/8496
AB  - Traditional applications of the Judd-Ofelt (JO) theory to the analysis of the Eu3+ optical spectra make use of the emission transitions originating from the 5D0 manifold. In the present paper, we report an alternative method of evaluating the JO intensity parameters from the Eu3+ emission spectra based on the 5D1 → 7F0,1 transitions. The reduced matrix elements of the unit tensor operators are re-calculated for the 5D0,1,2 → 7F0,1,…,6 Eu3+ transitions in the intermediate coupling approximation using the average electrostatic and spin-orbit coupling parameters. The suggested method was tested by analyzing the emission spectra of the Eu3+ doped GdAlO3, LaF3, NaYF4, Y2O3, ZrO2, YNbO4, ZBLA and PIGLZ hosts. It is shown that the developed method is more accurate for the hosts with relatively high 5D1 level population, which emphasizes its high potential and applicability. In addition to the JO analysis, the CIE chromaticity coordinates are calculated for the investigated spectra. © 2019 Elsevier B.V.
T2  - Chemical Physics
T1  - Judd-Ofelt parametrization from emission spectra: The case study of the Eu3+ 5D1 emitting level
VL  - 528
SP  - 110513
DO  - 10.1016/j.chemphys.2019.110513
ER  - 
@article{
author = "Ćirić, Aleksandar and Stojadinović, Stevan and Brik, Mikhail G. and Dramićanin, Miroslav",
year = "2020",
abstract = "Traditional applications of the Judd-Ofelt (JO) theory to the analysis of the Eu3+ optical spectra make use of the emission transitions originating from the 5D0 manifold. In the present paper, we report an alternative method of evaluating the JO intensity parameters from the Eu3+ emission spectra based on the 5D1 → 7F0,1 transitions. The reduced matrix elements of the unit tensor operators are re-calculated for the 5D0,1,2 → 7F0,1,…,6 Eu3+ transitions in the intermediate coupling approximation using the average electrostatic and spin-orbit coupling parameters. The suggested method was tested by analyzing the emission spectra of the Eu3+ doped GdAlO3, LaF3, NaYF4, Y2O3, ZrO2, YNbO4, ZBLA and PIGLZ hosts. It is shown that the developed method is more accurate for the hosts with relatively high 5D1 level population, which emphasizes its high potential and applicability. In addition to the JO analysis, the CIE chromaticity coordinates are calculated for the investigated spectra. © 2019 Elsevier B.V.",
journal = "Chemical Physics",
title = "Judd-Ofelt parametrization from emission spectra: The case study of the Eu3+ 5D1 emitting level",
volume = "528",
pages = "110513",
doi = "10.1016/j.chemphys.2019.110513"
}
Ćirić, A., Stojadinović, S., Brik, M. G.,& Dramićanin, M.. (2020). Judd-Ofelt parametrization from emission spectra: The case study of the Eu3+ 5D1 emitting level. in Chemical Physics, 528, 110513.
https://doi.org/10.1016/j.chemphys.2019.110513
Ćirić A, Stojadinović S, Brik MG, Dramićanin M. Judd-Ofelt parametrization from emission spectra: The case study of the Eu3+ 5D1 emitting level. in Chemical Physics. 2020;528:110513.
doi:10.1016/j.chemphys.2019.110513 .
Ćirić, Aleksandar, Stojadinović, Stevan, Brik, Mikhail G., Dramićanin, Miroslav, "Judd-Ofelt parametrization from emission spectra: The case study of the Eu3+ 5D1 emitting level" in Chemical Physics, 528 (2020):110513,
https://doi.org/10.1016/j.chemphys.2019.110513 . .
13
12
13

Temperature and concentration dependent Judd-Ofelt analysis of Y2O3:Eu3+ and YVO4:Eu3+

Ćirić, Aleksandar; Stojadinović, Stevan; Dramićanin, Miroslav

(2020)

TY  - JOUR
AU  - Ćirić, Aleksandar
AU  - Stojadinović, Stevan
AU  - Dramićanin, Miroslav
PY  - 2020
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/8745
AB  - Judd-Ofelt analysis has been performed from the photoluminescence emission spectra of Y2O3:Eu3+ with 3%, 1% and 0.1% doping concentration and YVO4:Eu3+ with 1% doping concentration, in temperature range from 40 °C to 460 °C. For precise calculation, an extended Sellmeier equation that accounts for the doping concentration and temperature dependence of the refractive index of Y2O3 doped with lanthanides is estimated. The temperature dependence of Ω2 and Ω4 parameters are fitted with quadratic and linear regression, respectively. Judd-Ofelt intensity parameters uniformly drop with increasing temperature, but at a different rate for different doping concentrations. From the Judd-Ofelt parameters radiative lifetimes and emission cross-sections were calculated. The cross-sections show a linear decrease with increasing temperature. © 2019 Elsevier B.V.
T2  - Physica B: Condensed Matter
T1  - Temperature and concentration dependent Judd-Ofelt analysis of Y2O3:Eu3+ and YVO4:Eu3+
VL  - 579
SP  - 411891
DO  - 10.1016/j.physb.2019.411891
ER  - 
@article{
author = "Ćirić, Aleksandar and Stojadinović, Stevan and Dramićanin, Miroslav",
year = "2020",
abstract = "Judd-Ofelt analysis has been performed from the photoluminescence emission spectra of Y2O3:Eu3+ with 3%, 1% and 0.1% doping concentration and YVO4:Eu3+ with 1% doping concentration, in temperature range from 40 °C to 460 °C. For precise calculation, an extended Sellmeier equation that accounts for the doping concentration and temperature dependence of the refractive index of Y2O3 doped with lanthanides is estimated. The temperature dependence of Ω2 and Ω4 parameters are fitted with quadratic and linear regression, respectively. Judd-Ofelt intensity parameters uniformly drop with increasing temperature, but at a different rate for different doping concentrations. From the Judd-Ofelt parameters radiative lifetimes and emission cross-sections were calculated. The cross-sections show a linear decrease with increasing temperature. © 2019 Elsevier B.V.",
journal = "Physica B: Condensed Matter",
title = "Temperature and concentration dependent Judd-Ofelt analysis of Y2O3:Eu3+ and YVO4:Eu3+",
volume = "579",
pages = "411891",
doi = "10.1016/j.physb.2019.411891"
}
Ćirić, A., Stojadinović, S.,& Dramićanin, M.. (2020). Temperature and concentration dependent Judd-Ofelt analysis of Y2O3:Eu3+ and YVO4:Eu3+. in Physica B: Condensed Matter, 579, 411891.
https://doi.org/10.1016/j.physb.2019.411891
Ćirić A, Stojadinović S, Dramićanin M. Temperature and concentration dependent Judd-Ofelt analysis of Y2O3:Eu3+ and YVO4:Eu3+. in Physica B: Condensed Matter. 2020;579:411891.
doi:10.1016/j.physb.2019.411891 .
Ćirić, Aleksandar, Stojadinović, Stevan, Dramićanin, Miroslav, "Temperature and concentration dependent Judd-Ofelt analysis of Y2O3:Eu3+ and YVO4:Eu3+" in Physica B: Condensed Matter, 579 (2020):411891,
https://doi.org/10.1016/j.physb.2019.411891 . .
4
3
4

Luminescence temperature sensing using thin-films of undoped Gd2O3 and doped with Ho3+, Eu3+ and Er3+ prepared by plasma electrolytic oxidation

Ćirić, Aleksandar; Stojadinović, Stevan; Dramićanin, Miroslav

(2020)

TY  - JOUR
AU  - Ćirić, Aleksandar
AU  - Stojadinović, Stevan
AU  - Dramićanin, Miroslav
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9060
AB  - The steady-state luminescence thermometry analysis was performed on thin-films of undoped Gd2O3 and Gd2O3 doped with Ho3+, Eu3+ and Er3+, created by the plasma electrolytic oxidation process. The experimental setup for luminescent measurements closely resembles the practical luminescent fiber-optic thermometer. The visible PL from Gd3+ was utilized for the luminescence intensity ratio method, exceling over the traditional method by using the thermally coupled levels, as it is superior by either better sensitivities, widened temperature range or improved temperature resolution. The relative uncertainty by our method is ~300 times lower @ 300 K for Gd2O3:Eu3+. The maximum relative sensitivities by the luminescence intensity ratio (LIR) of Gd2O3:Ho3+, Gd2O3:Eu3+ and Gd2O3:Er3+ are 0.12% @ 295 K, 0.44% @ 580 K and 1.1% @ 290 K, respectively. Line-shift showed a significant change solely for Eu3+ doped sample, by 0.076 cm−1 K−1. The full-width-half-maximum (FWHM) changes of undoped Gd2O3 and doped by Eu3+ at the high rate of 0.3 cm−1 K−1 @ 573 K and 0.53 cm−1 K−1 @ 300 K, respectively, but was marked impractical for other samples.
T2  - Ceramics International
T1  - Luminescence temperature sensing using thin-films of undoped Gd2O3 and doped with Ho3+, Eu3+ and Er3+ prepared by plasma electrolytic oxidation
VL  - 46
IS  - 14
SP  - 23223
EP  - 23231
DO  - 10.1016/j.ceramint.2020.06.106
ER  - 
@article{
author = "Ćirić, Aleksandar and Stojadinović, Stevan and Dramićanin, Miroslav",
year = "2020",
abstract = "The steady-state luminescence thermometry analysis was performed on thin-films of undoped Gd2O3 and Gd2O3 doped with Ho3+, Eu3+ and Er3+, created by the plasma electrolytic oxidation process. The experimental setup for luminescent measurements closely resembles the practical luminescent fiber-optic thermometer. The visible PL from Gd3+ was utilized for the luminescence intensity ratio method, exceling over the traditional method by using the thermally coupled levels, as it is superior by either better sensitivities, widened temperature range or improved temperature resolution. The relative uncertainty by our method is ~300 times lower @ 300 K for Gd2O3:Eu3+. The maximum relative sensitivities by the luminescence intensity ratio (LIR) of Gd2O3:Ho3+, Gd2O3:Eu3+ and Gd2O3:Er3+ are 0.12% @ 295 K, 0.44% @ 580 K and 1.1% @ 290 K, respectively. Line-shift showed a significant change solely for Eu3+ doped sample, by 0.076 cm−1 K−1. The full-width-half-maximum (FWHM) changes of undoped Gd2O3 and doped by Eu3+ at the high rate of 0.3 cm−1 K−1 @ 573 K and 0.53 cm−1 K−1 @ 300 K, respectively, but was marked impractical for other samples.",
journal = "Ceramics International",
title = "Luminescence temperature sensing using thin-films of undoped Gd2O3 and doped with Ho3+, Eu3+ and Er3+ prepared by plasma electrolytic oxidation",
volume = "46",
number = "14",
pages = "23223-23231",
doi = "10.1016/j.ceramint.2020.06.106"
}
Ćirić, A., Stojadinović, S.,& Dramićanin, M.. (2020). Luminescence temperature sensing using thin-films of undoped Gd2O3 and doped with Ho3+, Eu3+ and Er3+ prepared by plasma electrolytic oxidation. in Ceramics International, 46(14), 23223-23231.
https://doi.org/10.1016/j.ceramint.2020.06.106
Ćirić A, Stojadinović S, Dramićanin M. Luminescence temperature sensing using thin-films of undoped Gd2O3 and doped with Ho3+, Eu3+ and Er3+ prepared by plasma electrolytic oxidation. in Ceramics International. 2020;46(14):23223-23231.
doi:10.1016/j.ceramint.2020.06.106 .
Ćirić, Aleksandar, Stojadinović, Stevan, Dramićanin, Miroslav, "Luminescence temperature sensing using thin-films of undoped Gd2O3 and doped with Ho3+, Eu3+ and Er3+ prepared by plasma electrolytic oxidation" in Ceramics International, 46, no. 14 (2020):23223-23231,
https://doi.org/10.1016/j.ceramint.2020.06.106 . .
4
3
4

Selective Antimicrobial Performance of Biosynthesized Silver Nanoparticles by Horsetail Extract Against E. coli

Miljković, Miona G.; Lazić, Vesna M.; Davidović, Slađana Z.; Milivojević, Ana; Papan, Jelena; Fernandes, Margarida M.; Lanceros-Mendez, Senentxu; Ahrenkiel, Scott Phillip; Nedeljković, Jovan

(2020)

TY  - JOUR
AU  - Miljković, Miona G.
AU  - Lazić, Vesna M.
AU  - Davidović, Slađana Z.
AU  - Milivojević, Ana
AU  - Papan, Jelena
AU  - Fernandes, Margarida M.
AU  - Lanceros-Mendez, Senentxu
AU  - Ahrenkiel, Scott Phillip
AU  - Nedeljković, Jovan
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8902
AB  - The aim of this study was the development of a non-toxic, biosynthetic antimicrobial agent which selectively acts on only one type of microorganism, and preserves the microbiota. Antimicrobial performance of biosynthesized silver nanoparticles (Ag NPs) by horsetail (Equisetum arvense L.) extract was examined against Gram-negative bacteria Escherichia coli and Gram-positive bacteria Staphylococcus aureus, as well as yeasts Candida albicans and Saccharomyces boulardii. Also, the cytotoxicity of Ag NPs was examined toward pre-osteoblast cells. The synthetic conditions—concentration of extract, temperature, and pH—were optimized to prepare silver colloids with different particle size distributions and long-term stability. The obtained samples were characterized using transmission electron microscopy, X-ray diffraction analysis, and absorption spectroscopy. The smaller-sized Ag NPs (~ 10–20 nm), prepared at a lower temperature (20 °C), showed better antimicrobial performance against E. coli compared to larger ones (~ 40–60 nm), prepared at high temperature (100 °C). On the other hand, both samples did not display any toxic action against bacteria S. aureus, or yeasts C. albicans and S. boulardii. Non-cytotoxic behavior of Ag NPs toward pre-osteoblast cells was observed for the concentrations of silver ≤ 2.25 and ≤ 4.5 mg L−1 for 10–20 and 40–60 nm-sized Ag NPs, respectively. Biosynthesized Ag NPs by horsetail extract display selective toxic action against E. coli at the ecologically acceptable concentration level. © 2019, Springer Science+Business Media, LLC, part of Springer Nature.
T2  - Journal of Inorganic and Organometallic Polymers and Materials
T1  - Selective Antimicrobial Performance of Biosynthesized Silver Nanoparticles by Horsetail Extract Against E. coli
VL  - 30
IS  - 7
SP  - 2598
EP  - 2607
DO  - 10.1007/s10904-019-01402-x
ER  - 
@article{
author = "Miljković, Miona G. and Lazić, Vesna M. and Davidović, Slađana Z. and Milivojević, Ana and Papan, Jelena and Fernandes, Margarida M. and Lanceros-Mendez, Senentxu and Ahrenkiel, Scott Phillip and Nedeljković, Jovan",
year = "2020",
abstract = "The aim of this study was the development of a non-toxic, biosynthetic antimicrobial agent which selectively acts on only one type of microorganism, and preserves the microbiota. Antimicrobial performance of biosynthesized silver nanoparticles (Ag NPs) by horsetail (Equisetum arvense L.) extract was examined against Gram-negative bacteria Escherichia coli and Gram-positive bacteria Staphylococcus aureus, as well as yeasts Candida albicans and Saccharomyces boulardii. Also, the cytotoxicity of Ag NPs was examined toward pre-osteoblast cells. The synthetic conditions—concentration of extract, temperature, and pH—were optimized to prepare silver colloids with different particle size distributions and long-term stability. The obtained samples were characterized using transmission electron microscopy, X-ray diffraction analysis, and absorption spectroscopy. The smaller-sized Ag NPs (~ 10–20 nm), prepared at a lower temperature (20 °C), showed better antimicrobial performance against E. coli compared to larger ones (~ 40–60 nm), prepared at high temperature (100 °C). On the other hand, both samples did not display any toxic action against bacteria S. aureus, or yeasts C. albicans and S. boulardii. Non-cytotoxic behavior of Ag NPs toward pre-osteoblast cells was observed for the concentrations of silver ≤ 2.25 and ≤ 4.5 mg L−1 for 10–20 and 40–60 nm-sized Ag NPs, respectively. Biosynthesized Ag NPs by horsetail extract display selective toxic action against E. coli at the ecologically acceptable concentration level. © 2019, Springer Science+Business Media, LLC, part of Springer Nature.",
journal = "Journal of Inorganic and Organometallic Polymers and Materials",
title = "Selective Antimicrobial Performance of Biosynthesized Silver Nanoparticles by Horsetail Extract Against E. coli",
volume = "30",
number = "7",
pages = "2598-2607",
doi = "10.1007/s10904-019-01402-x"
}
Miljković, M. G., Lazić, V. M., Davidović, S. Z., Milivojević, A., Papan, J., Fernandes, M. M., Lanceros-Mendez, S., Ahrenkiel, S. P.,& Nedeljković, J.. (2020). Selective Antimicrobial Performance of Biosynthesized Silver Nanoparticles by Horsetail Extract Against E. coli. in Journal of Inorganic and Organometallic Polymers and Materials, 30(7), 2598-2607.
https://doi.org/10.1007/s10904-019-01402-x
Miljković MG, Lazić VM, Davidović SZ, Milivojević A, Papan J, Fernandes MM, Lanceros-Mendez S, Ahrenkiel SP, Nedeljković J. Selective Antimicrobial Performance of Biosynthesized Silver Nanoparticles by Horsetail Extract Against E. coli. in Journal of Inorganic and Organometallic Polymers and Materials. 2020;30(7):2598-2607.
doi:10.1007/s10904-019-01402-x .
Miljković, Miona G., Lazić, Vesna M., Davidović, Slađana Z., Milivojević, Ana, Papan, Jelena, Fernandes, Margarida M., Lanceros-Mendez, Senentxu, Ahrenkiel, Scott Phillip, Nedeljković, Jovan, "Selective Antimicrobial Performance of Biosynthesized Silver Nanoparticles by Horsetail Extract Against E. coli" in Journal of Inorganic and Organometallic Polymers and Materials, 30, no. 7 (2020):2598-2607,
https://doi.org/10.1007/s10904-019-01402-x . .
1
4
3
3

Dy3+ and Dy3+/Ce3+ doped Al2O3 coatings obtained by plasma electrolytic oxidation: Photoluminescence and energy transfer from Ce3+ to Dy3+

Stojadinović, Stevan; Ćirić, Aleksandar

(2020)

TY  - JOUR
AU  - Stojadinović, Stevan
AU  - Ćirić, Aleksandar
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9030
AB  - In this paper, Dy3+ and Dy3+/Ce3+ doped Al2O3 coatings were synthesized by plasma electrolytic oxidation process of aluminum. Structural and photoluminescence (PL) properties of obtained coatings as well as energy transfer mechanism from Ce3+ to Dy3+ were studied. The PL excitation and emission spectra of Al2O3:Dy3+ featured weak bands attributed to f-f transitions of Dy3+. The PL emission spectrum of Al2O3:Dy3+ exhibits three emission bands in blue-yellow-red regions, assigned to F-4(9/2)-> H-6(15/2), F-4(9/2)-> H-6(13/2), and F-4(9/2)-> H-6(11/2) transitions of Dy3+, respectively. Under middle UV excitation the Ce3+ in Al2O3 emits broad band, peaked at about 330 nm, attributed to the 5d -> 4f transition of Ce3+. Because of the strong overlap between the PL emission of Ce3+ and the PL excitation of Dy3+ in Al2O3, energy transfer from Ce3+ to the Dy3+ in Al2O3:Dy3+/Ce3+ is observed upon 285 nm excitation. PL emissions due to F-4(9/2)-> H-6(J) (J = 11/2, 13/2, and 15/2) transitions of Dy3+ in Al2O3:Dy3+/Ce3+ is two to three orders of magnitude larger than in Al2O3:Dy3+. The values of CIE chromaticity coordinates for Al2O3:Dy3+/Ce3+ suggest their application for cold white light emission.
T2  - Journal of Luminescence
T1  - Dy3+ and Dy3+/Ce3+ doped Al2O3 coatings obtained by plasma electrolytic oxidation: Photoluminescence and energy transfer from Ce3+ to Dy3+
VL  - 226
SP  - 117403
DO  - 10.1016/j.jlumin.2020.117403
ER  - 
@article{
author = "Stojadinović, Stevan and Ćirić, Aleksandar",
year = "2020",
abstract = "In this paper, Dy3+ and Dy3+/Ce3+ doped Al2O3 coatings were synthesized by plasma electrolytic oxidation process of aluminum. Structural and photoluminescence (PL) properties of obtained coatings as well as energy transfer mechanism from Ce3+ to Dy3+ were studied. The PL excitation and emission spectra of Al2O3:Dy3+ featured weak bands attributed to f-f transitions of Dy3+. The PL emission spectrum of Al2O3:Dy3+ exhibits three emission bands in blue-yellow-red regions, assigned to F-4(9/2)-> H-6(15/2), F-4(9/2)-> H-6(13/2), and F-4(9/2)-> H-6(11/2) transitions of Dy3+, respectively. Under middle UV excitation the Ce3+ in Al2O3 emits broad band, peaked at about 330 nm, attributed to the 5d -> 4f transition of Ce3+. Because of the strong overlap between the PL emission of Ce3+ and the PL excitation of Dy3+ in Al2O3, energy transfer from Ce3+ to the Dy3+ in Al2O3:Dy3+/Ce3+ is observed upon 285 nm excitation. PL emissions due to F-4(9/2)-> H-6(J) (J = 11/2, 13/2, and 15/2) transitions of Dy3+ in Al2O3:Dy3+/Ce3+ is two to three orders of magnitude larger than in Al2O3:Dy3+. The values of CIE chromaticity coordinates for Al2O3:Dy3+/Ce3+ suggest their application for cold white light emission.",
journal = "Journal of Luminescence",
title = "Dy3+ and Dy3+/Ce3+ doped Al2O3 coatings obtained by plasma electrolytic oxidation: Photoluminescence and energy transfer from Ce3+ to Dy3+",
volume = "226",
pages = "117403",
doi = "10.1016/j.jlumin.2020.117403"
}
Stojadinović, S.,& Ćirić, A.. (2020). Dy3+ and Dy3+/Ce3+ doped Al2O3 coatings obtained by plasma electrolytic oxidation: Photoluminescence and energy transfer from Ce3+ to Dy3+. in Journal of Luminescence, 226, 117403.
https://doi.org/10.1016/j.jlumin.2020.117403
Stojadinović S, Ćirić A. Dy3+ and Dy3+/Ce3+ doped Al2O3 coatings obtained by plasma electrolytic oxidation: Photoluminescence and energy transfer from Ce3+ to Dy3+. in Journal of Luminescence. 2020;226:117403.
doi:10.1016/j.jlumin.2020.117403 .
Stojadinović, Stevan, Ćirić, Aleksandar, "Dy3+ and Dy3+/Ce3+ doped Al2O3 coatings obtained by plasma electrolytic oxidation: Photoluminescence and energy transfer from Ce3+ to Dy3+" in Journal of Luminescence, 226 (2020):117403,
https://doi.org/10.1016/j.jlumin.2020.117403 . .
5
3
3

The influence of gamma irradiation on the color change of wool, linen, silk, and cotton fabrics used in cultural heritage artifacts

Vujčić, Ivica; Mašić, Slobodan; Medić, Mina M.; Milićević, Bojana R.; Dramićanin, Miroslav

(2019)

TY  - JOUR
AU  - Vujčić, Ivica
AU  - Mašić, Slobodan
AU  - Medić, Mina M.
AU  - Milićević, Bojana R.
AU  - Dramićanin, Miroslav
PY  - 2019
UR  - https://linkinghub.elsevier.com/retrieve/pii/S0969806X18307163
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/8003
AB  - Fabrics made of wool, linen, silk, and cotton, which are used in the making of artifacts of cultural heritage, were divided into three groups. The first group wasn't dyed, the second group was dyed with natural dye (using sour cherry), and the third one was dyed with artificial aniline dye. For the conservation purposes, all samples were exposed at ambient temperature to gamma radiation doses, from 0.5 to 25 kGy, using a Co-60 irradiator. The influence of gamma irradiation treatment on the color changes was investigated. The obtained results revealed that the irradiation affects the color changes in all samples. All samples became more or less darker under the influence of gamma irradiation. This change in darkness is most pronounced in samples dyed with natural colors. Also, the highest differences in color change and darkness were observed in linen samples. © 2018 Elsevier Ltd
T2  - Radiation Physics and Chemistry
T1  - The influence of gamma irradiation on the color change of wool, linen, silk, and cotton fabrics used in cultural heritage artifacts
VL  - 156
SP  - 307
EP  - 313
DO  - 10.1016/j.radphyschem.2018.12.001
ER  - 
@article{
author = "Vujčić, Ivica and Mašić, Slobodan and Medić, Mina M. and Milićević, Bojana R. and Dramićanin, Miroslav",
year = "2019",
abstract = "Fabrics made of wool, linen, silk, and cotton, which are used in the making of artifacts of cultural heritage, were divided into three groups. The first group wasn't dyed, the second group was dyed with natural dye (using sour cherry), and the third one was dyed with artificial aniline dye. For the conservation purposes, all samples were exposed at ambient temperature to gamma radiation doses, from 0.5 to 25 kGy, using a Co-60 irradiator. The influence of gamma irradiation treatment on the color changes was investigated. The obtained results revealed that the irradiation affects the color changes in all samples. All samples became more or less darker under the influence of gamma irradiation. This change in darkness is most pronounced in samples dyed with natural colors. Also, the highest differences in color change and darkness were observed in linen samples. © 2018 Elsevier Ltd",
journal = "Radiation Physics and Chemistry",
title = "The influence of gamma irradiation on the color change of wool, linen, silk, and cotton fabrics used in cultural heritage artifacts",
volume = "156",
pages = "307-313",
doi = "10.1016/j.radphyschem.2018.12.001"
}
Vujčić, I., Mašić, S., Medić, M. M., Milićević, B. R.,& Dramićanin, M.. (2019). The influence of gamma irradiation on the color change of wool, linen, silk, and cotton fabrics used in cultural heritage artifacts. in Radiation Physics and Chemistry, 156, 307-313.
https://doi.org/10.1016/j.radphyschem.2018.12.001
Vujčić I, Mašić S, Medić MM, Milićević BR, Dramićanin M. The influence of gamma irradiation on the color change of wool, linen, silk, and cotton fabrics used in cultural heritage artifacts. in Radiation Physics and Chemistry. 2019;156:307-313.
doi:10.1016/j.radphyschem.2018.12.001 .
Vujčić, Ivica, Mašić, Slobodan, Medić, Mina M., Milićević, Bojana R., Dramićanin, Miroslav, "The influence of gamma irradiation on the color change of wool, linen, silk, and cotton fabrics used in cultural heritage artifacts" in Radiation Physics and Chemistry, 156 (2019):307-313,
https://doi.org/10.1016/j.radphyschem.2018.12.001 . .
1
4
1
3

Sorption of divalent heavy metal ions onto functionalized biogenic hydroxyapatite with caffeic acid and 3,4-dihydroxybenzoic acid

Smičiklas, Ivana D.; Lazić, Vesna M.; Živković, Ljiljana; Porobić, Slavica; Ahrenkiel, Scott Phillip; Nedeljković, Jovan

(2019)

TY  - JOUR
AU  - Smičiklas, Ivana D.
AU  - Lazić, Vesna M.
AU  - Živković, Ljiljana
AU  - Porobić, Slavica
AU  - Ahrenkiel, Scott Phillip
AU  - Nedeljković, Jovan
PY  - 2019
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/8188
AB  - The sorption ability of biogenic hydroxyapatite (BHAP) towards heavy metal ions (Pb, Cu, Ni, Cd, and Zn) is compared with functionalized BHAP powders with caffeic acid (CA) and 3,4-dihydroxybenzoic acid (3,4-DHBA). The functionalization of the BHAP with either CA or 3,4-DHBA is indicated by the appearance of the colored powders due to the formation of the interfacial charge transfer (ICT) complexes. The detailed characterization of as-prepared and functionalized BHAP samples was performed using transmission electron microscopy, reflection spectroscopy, thermogravimetric analysis and determination of zeta potential. All three sorbents clearly displayed preferential sorption of Pb ions when the total concentration of multi-component equimolar solutions of heavy metal ions is high. It should be emphasized that the sorption capacity of functionalized BHAP with either CA or 3,4-BHAP was found to be higher, up to 60%, compared to as-prepared BHAP without the decrease of selectivity towards Pb ions. © 2019, © 2019 Taylor & Francis Group, LLC.
T2  - Journal of Environmental Science and Health, Part A
T1  - Sorption of divalent heavy metal ions onto functionalized biogenic hydroxyapatite with caffeic acid and 3,4-dihydroxybenzoic acid
VL  - 54
IS  - 9
SP  - 899
EP  - 905
DO  - 10.1080/10934529.2019.1606575
ER  - 
@article{
author = "Smičiklas, Ivana D. and Lazić, Vesna M. and Živković, Ljiljana and Porobić, Slavica and Ahrenkiel, Scott Phillip and Nedeljković, Jovan",
year = "2019",
abstract = "The sorption ability of biogenic hydroxyapatite (BHAP) towards heavy metal ions (Pb, Cu, Ni, Cd, and Zn) is compared with functionalized BHAP powders with caffeic acid (CA) and 3,4-dihydroxybenzoic acid (3,4-DHBA). The functionalization of the BHAP with either CA or 3,4-DHBA is indicated by the appearance of the colored powders due to the formation of the interfacial charge transfer (ICT) complexes. The detailed characterization of as-prepared and functionalized BHAP samples was performed using transmission electron microscopy, reflection spectroscopy, thermogravimetric analysis and determination of zeta potential. All three sorbents clearly displayed preferential sorption of Pb ions when the total concentration of multi-component equimolar solutions of heavy metal ions is high. It should be emphasized that the sorption capacity of functionalized BHAP with either CA or 3,4-BHAP was found to be higher, up to 60%, compared to as-prepared BHAP without the decrease of selectivity towards Pb ions. © 2019, © 2019 Taylor & Francis Group, LLC.",
journal = "Journal of Environmental Science and Health, Part A",
title = "Sorption of divalent heavy metal ions onto functionalized biogenic hydroxyapatite with caffeic acid and 3,4-dihydroxybenzoic acid",
volume = "54",
number = "9",
pages = "899-905",
doi = "10.1080/10934529.2019.1606575"
}
Smičiklas, I. D., Lazić, V. M., Živković, L., Porobić, S., Ahrenkiel, S. P.,& Nedeljković, J.. (2019). Sorption of divalent heavy metal ions onto functionalized biogenic hydroxyapatite with caffeic acid and 3,4-dihydroxybenzoic acid. in Journal of Environmental Science and Health, Part A, 54(9), 899-905.
https://doi.org/10.1080/10934529.2019.1606575
Smičiklas ID, Lazić VM, Živković L, Porobić S, Ahrenkiel SP, Nedeljković J. Sorption of divalent heavy metal ions onto functionalized biogenic hydroxyapatite with caffeic acid and 3,4-dihydroxybenzoic acid. in Journal of Environmental Science and Health, Part A. 2019;54(9):899-905.
doi:10.1080/10934529.2019.1606575 .
Smičiklas, Ivana D., Lazić, Vesna M., Živković, Ljiljana, Porobić, Slavica, Ahrenkiel, Scott Phillip, Nedeljković, Jovan, "Sorption of divalent heavy metal ions onto functionalized biogenic hydroxyapatite with caffeic acid and 3,4-dihydroxybenzoic acid" in Journal of Environmental Science and Health, Part A, 54, no. 9 (2019):899-905,
https://doi.org/10.1080/10934529.2019.1606575 . .
2
2
3

Sorption of divalent heavy metal ions onto functionalized biogenic hydroxyapatite with caffeic acid and 3,4-dihydroxybenzoic acid

Smičiklas, Ivana D.; Lazić, Vesna M.; Živković, Ljiljana; Porobić, Slavica; Ahrenkiel, Scott Phillip; Nedeljković, Jovan

(2019)

TY  - JOUR
AU  - Smičiklas, Ivana D.
AU  - Lazić, Vesna M.
AU  - Živković, Ljiljana
AU  - Porobić, Slavica
AU  - Ahrenkiel, Scott Phillip
AU  - Nedeljković, Jovan
PY  - 2019
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/8172
AB  - The sorption ability of biogenic hydroxyapatite (BHAP) towards heavy metal ions (Pb, Cu, Ni, Cd, and Zn) is compared with functionalized BHAP powders with caffeic acid (CA) and 3,4-dihydroxybenzoic acid (3,4-DHBA). The functionalization of the BHAP with either CA or 3,4-DHBA is indicated by the appearance of the colored powders due to the formation of the interfacial charge transfer (ICT) complexes. The detailed characterization of as-prepared and functionalized BHAP samples was performed using transmission electron microscopy, reflection spectroscopy, thermogravimetric analysis and determination of zeta potential. All three sorbents clearly displayed preferential sorption of Pb ions when the total concentration of multi-component equimolar solutions of heavy metal ions is high. It should be emphasized that the sorption capacity of functionalized BHAP with either CA or 3,4-BHAP was found to be higher, up to 60%, compared to as-prepared BHAP without the decrease of selectivity towards Pb ions. © 2019, © 2019 Taylor & Francis Group, LLC.
T2  - Journal of Environmental Science and Health, Part A
T1  - Sorption of divalent heavy metal ions onto functionalized biogenic hydroxyapatite with caffeic acid and 3,4-dihydroxybenzoic acid
VL  - 54
IS  - 9
SP  - 899
EP  - 905
DO  - 10.1080/10934529.2019.1606575
ER  - 
@article{
author = "Smičiklas, Ivana D. and Lazić, Vesna M. and Živković, Ljiljana and Porobić, Slavica and Ahrenkiel, Scott Phillip and Nedeljković, Jovan",
year = "2019",
abstract = "The sorption ability of biogenic hydroxyapatite (BHAP) towards heavy metal ions (Pb, Cu, Ni, Cd, and Zn) is compared with functionalized BHAP powders with caffeic acid (CA) and 3,4-dihydroxybenzoic acid (3,4-DHBA). The functionalization of the BHAP with either CA or 3,4-DHBA is indicated by the appearance of the colored powders due to the formation of the interfacial charge transfer (ICT) complexes. The detailed characterization of as-prepared and functionalized BHAP samples was performed using transmission electron microscopy, reflection spectroscopy, thermogravimetric analysis and determination of zeta potential. All three sorbents clearly displayed preferential sorption of Pb ions when the total concentration of multi-component equimolar solutions of heavy metal ions is high. It should be emphasized that the sorption capacity of functionalized BHAP with either CA or 3,4-BHAP was found to be higher, up to 60%, compared to as-prepared BHAP without the decrease of selectivity towards Pb ions. © 2019, © 2019 Taylor & Francis Group, LLC.",
journal = "Journal of Environmental Science and Health, Part A",
title = "Sorption of divalent heavy metal ions onto functionalized biogenic hydroxyapatite with caffeic acid and 3,4-dihydroxybenzoic acid",
volume = "54",
number = "9",
pages = "899-905",
doi = "10.1080/10934529.2019.1606575"
}
Smičiklas, I. D., Lazić, V. M., Živković, L., Porobić, S., Ahrenkiel, S. P.,& Nedeljković, J.. (2019). Sorption of divalent heavy metal ions onto functionalized biogenic hydroxyapatite with caffeic acid and 3,4-dihydroxybenzoic acid. in Journal of Environmental Science and Health, Part A, 54(9), 899-905.
https://doi.org/10.1080/10934529.2019.1606575
Smičiklas ID, Lazić VM, Živković L, Porobić S, Ahrenkiel SP, Nedeljković J. Sorption of divalent heavy metal ions onto functionalized biogenic hydroxyapatite with caffeic acid and 3,4-dihydroxybenzoic acid. in Journal of Environmental Science and Health, Part A. 2019;54(9):899-905.
doi:10.1080/10934529.2019.1606575 .
Smičiklas, Ivana D., Lazić, Vesna M., Živković, Ljiljana, Porobić, Slavica, Ahrenkiel, Scott Phillip, Nedeljković, Jovan, "Sorption of divalent heavy metal ions onto functionalized biogenic hydroxyapatite with caffeic acid and 3,4-dihydroxybenzoic acid" in Journal of Environmental Science and Health, Part A, 54, no. 9 (2019):899-905,
https://doi.org/10.1080/10934529.2019.1606575 . .
2
2
3

The properties of elastomeric composites based on three network precursors

Jovanović, Vojislav; Jovanović, Slaviša; Marković, Gordana; Samaržija‐Jovanović, Suzana; Porobić, Slavica; Budinski-Simendić, Jaroslava K.; Marinović‐Cincović, Milena

(2019)

TY  - JOUR
AU  - Jovanović, Vojislav
AU  - Jovanović, Slaviša
AU  - Marković, Gordana
AU  - Samaržija‐Jovanović, Suzana
AU  - Porobić, Slavica
AU  - Budinski-Simendić, Jaroslava K.
AU  - Marinović‐Cincović, Milena
PY  - 2019
UR  - https://onlinelibrary.wiley.com/doi/abs/10.1002/pc.24854
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/8138
AB  - The powder recycled rubber (PRR) can be used as a filler and a modifier for elastomeric materials and asphalt. Composites based on elastomers and recycled rubber powders are a serious challenge for the environment. The main goal of this paper was to study the effect of rubber powder on the mechanical properties of elastomeric composites based on three precursors of the network. Triple blends were prepared using non-polar natural rubber (NR), polyisoprene rubber (BR), and styrene-butadiene rubber (SBR) (mass ratio 40/40/20). In all rubber compounds, the carbon black (CB)/PRR mass ratio is constant (60). Samples were prepared using two roll mill. The characteristics of hardening (optimum cure time, scorch time, minimum and maximum torque) of rubber mixtures were tested. Tensile strength, modulus at 100% elongation and elongation at break are decreasing with PRR ratio is increasing. It is due to poor adhesion of PRR into NR/BR/SBR/CB matrix. The thermal degradation temperature shifts to a higher temperature up to 5 phr of PRR in NR/BR/SBR/CB rubber blends. Fourier-transform infrared spectra of NR/BR/SBR/CB/PRR samples show that the absorption bands shifted 7–15 cm−1 to higher wavenumbers and confirmed rubber–filler interaction. Morphology was assessed by scanning electron microscopy. POLYM. COMPOS., 40:1307–1314, 2019. © 2018 Society of Plastics Engineers. © 2018 Society of Plastics Engineers
T2  - Polymer Composites
T1  - The properties of elastomeric composites based on three network precursors
VL  - 40
IS  - 4
SP  - 1307
EP  - 1314
DO  - 10.1002/pc.24854
ER  - 
@article{
author = "Jovanović, Vojislav and Jovanović, Slaviša and Marković, Gordana and Samaržija‐Jovanović, Suzana and Porobić, Slavica and Budinski-Simendić, Jaroslava K. and Marinović‐Cincović, Milena",
year = "2019",
abstract = "The powder recycled rubber (PRR) can be used as a filler and a modifier for elastomeric materials and asphalt. Composites based on elastomers and recycled rubber powders are a serious challenge for the environment. The main goal of this paper was to study the effect of rubber powder on the mechanical properties of elastomeric composites based on three precursors of the network. Triple blends were prepared using non-polar natural rubber (NR), polyisoprene rubber (BR), and styrene-butadiene rubber (SBR) (mass ratio 40/40/20). In all rubber compounds, the carbon black (CB)/PRR mass ratio is constant (60). Samples were prepared using two roll mill. The characteristics of hardening (optimum cure time, scorch time, minimum and maximum torque) of rubber mixtures were tested. Tensile strength, modulus at 100% elongation and elongation at break are decreasing with PRR ratio is increasing. It is due to poor adhesion of PRR into NR/BR/SBR/CB matrix. The thermal degradation temperature shifts to a higher temperature up to 5 phr of PRR in NR/BR/SBR/CB rubber blends. Fourier-transform infrared spectra of NR/BR/SBR/CB/PRR samples show that the absorption bands shifted 7–15 cm−1 to higher wavenumbers and confirmed rubber–filler interaction. Morphology was assessed by scanning electron microscopy. POLYM. COMPOS., 40:1307–1314, 2019. © 2018 Society of Plastics Engineers. © 2018 Society of Plastics Engineers",
journal = "Polymer Composites",
title = "The properties of elastomeric composites based on three network precursors",
volume = "40",
number = "4",
pages = "1307-1314",
doi = "10.1002/pc.24854"
}
Jovanović, V., Jovanović, S., Marković, G., Samaržija‐Jovanović, S., Porobić, S., Budinski-Simendić, J. K.,& Marinović‐Cincović, M.. (2019). The properties of elastomeric composites based on three network precursors. in Polymer Composites, 40(4), 1307-1314.
https://doi.org/10.1002/pc.24854
Jovanović V, Jovanović S, Marković G, Samaržija‐Jovanović S, Porobić S, Budinski-Simendić JK, Marinović‐Cincović M. The properties of elastomeric composites based on three network precursors. in Polymer Composites. 2019;40(4):1307-1314.
doi:10.1002/pc.24854 .
Jovanović, Vojislav, Jovanović, Slaviša, Marković, Gordana, Samaržija‐Jovanović, Suzana, Porobić, Slavica, Budinski-Simendić, Jaroslava K., Marinović‐Cincović, Milena, "The properties of elastomeric composites based on three network precursors" in Polymer Composites, 40, no. 4 (2019):1307-1314,
https://doi.org/10.1002/pc.24854 . .

Detection of Cu2+ ions in aqueous solution via emission quenching of colloidal EuPO4 ultrasmall nanoparticles

Periša, Jovana; Lenhardt Acković, Lea; Jovanović, Dragana J.; Dramićanin, Miroslav

(2019)

TY  - JOUR
AU  - Periša, Jovana
AU  - Lenhardt Acković, Lea
AU  - Jovanović, Dragana J.
AU  - Dramićanin, Miroslav
PY  - 2019
UR  - https://linkinghub.elsevier.com/retrieve/pii/S0925346719300345
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/8043
AB  - EuPO4 and Eu3+-activated REPO4 (RE = La, Dy, Er) ultrasmall fluorescent nanoparticles (NPs) with an average diameter of 2.1 nm were prepared via colloidal synthesis and tested for sensing Cu2+ and other heavy-metal ions. The pure monoclinic monazite crystal structure (space group P121/n1) of the synthesized particles was confirmed using X-ray diffraction measurements, and transmission electron microscopy images showed round particles with a narrow particle-size distribution. The NPs exhibited intense red emission, which is characteristic of the f-f electronic transition of Eu3+, and the quenching of their emission in the presence of heavy-metal ions was revealed by dispersing colloidal particles in a TRIS buffer and then performing photoluminescence measurements. Strong quenching of the emission (at a rate of 0.195 μM−1) was observed upon the addition of Cu2+ ions over the concentration range of 0–10 μM with a limit of detection of 60 nM for Cu2+. The recovery of nearly 90% of the original emission intensity of the probe was achieved via the addition of ethylendiaminetetraacetic acid and was possible in five quenching/recovery cycles. © 2019
T2  - Optical Materials
T1  - Detection of Cu2+ ions in aqueous solution via emission quenching of colloidal EuPO4 ultrasmall nanoparticles
VL  - 89
SP  - 142
EP  - 148
DO  - 10.1016/j.optmat.2018.12.059
ER  - 
@article{
author = "Periša, Jovana and Lenhardt Acković, Lea and Jovanović, Dragana J. and Dramićanin, Miroslav",
year = "2019",
abstract = "EuPO4 and Eu3+-activated REPO4 (RE = La, Dy, Er) ultrasmall fluorescent nanoparticles (NPs) with an average diameter of 2.1 nm were prepared via colloidal synthesis and tested for sensing Cu2+ and other heavy-metal ions. The pure monoclinic monazite crystal structure (space group P121/n1) of the synthesized particles was confirmed using X-ray diffraction measurements, and transmission electron microscopy images showed round particles with a narrow particle-size distribution. The NPs exhibited intense red emission, which is characteristic of the f-f electronic transition of Eu3+, and the quenching of their emission in the presence of heavy-metal ions was revealed by dispersing colloidal particles in a TRIS buffer and then performing photoluminescence measurements. Strong quenching of the emission (at a rate of 0.195 μM−1) was observed upon the addition of Cu2+ ions over the concentration range of 0–10 μM with a limit of detection of 60 nM for Cu2+. The recovery of nearly 90% of the original emission intensity of the probe was achieved via the addition of ethylendiaminetetraacetic acid and was possible in five quenching/recovery cycles. © 2019",
journal = "Optical Materials",
title = "Detection of Cu2+ ions in aqueous solution via emission quenching of colloidal EuPO4 ultrasmall nanoparticles",
volume = "89",
pages = "142-148",
doi = "10.1016/j.optmat.2018.12.059"
}
Periša, J., Lenhardt Acković, L., Jovanović, D. J.,& Dramićanin, M.. (2019). Detection of Cu2+ ions in aqueous solution via emission quenching of colloidal EuPO4 ultrasmall nanoparticles. in Optical Materials, 89, 142-148.
https://doi.org/10.1016/j.optmat.2018.12.059
Periša J, Lenhardt Acković L, Jovanović DJ, Dramićanin M. Detection of Cu2+ ions in aqueous solution via emission quenching of colloidal EuPO4 ultrasmall nanoparticles. in Optical Materials. 2019;89:142-148.
doi:10.1016/j.optmat.2018.12.059 .
Periša, Jovana, Lenhardt Acković, Lea, Jovanović, Dragana J., Dramićanin, Miroslav, "Detection of Cu2+ ions in aqueous solution via emission quenching of colloidal EuPO4 ultrasmall nanoparticles" in Optical Materials, 89 (2019):142-148,
https://doi.org/10.1016/j.optmat.2018.12.059 . .
7
7
6

Photoluminescence properties and thermal stability of RE2-xEuxSn2O7 (RE = Y3+, Gd3+, Lu3+) red nanophosphors: An experimental and theoretical study

Papan, Jelena; Jovanović, Dragana J.; Sekulić, Milica; Glais, Estelle; Dramićanin, Miroslav

(2019)

TY  - JOUR
AU  - Papan, Jelena
AU  - Jovanović, Dragana J.
AU  - Sekulić, Milica
AU  - Glais, Estelle
AU  - Dramićanin, Miroslav
PY  - 2019
UR  - https://linkinghub.elsevier.com/retrieve/pii/S0032591019301093
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/8057
AB  - Defect-fluorite structured Eu 3+ -doped Y 2 Sn 2 O 7 nanoparticles (30–40 nm) were successfully prepared through a facile co-precipitation method without any organic additives or templates followed by calcination in air. Luminescent properties of the as-prepared Y 2-x Eu x Sn 2 O 7 (0.02 ≤ x ≤ 0.6) nanophosphors were fully characterized from an experimental and theoretical point of view (excitation, emission, lifetime, critical concentration, temperature-dependent luminescence and thermal stability, type of interactions and the Judd-Ofelt analysis). The nanophosphors showed relatively sharp excitation bands from 360 to 530 nm and exhibited characteristic emission bands with the most intensive emission centered at 612 nm. In addition, Gd 1.98 Eu 0.02 Sn 2 O 7 and Lu 1.98 Eu 0.02 Sn 2 O 7 samples were prepared in order to study how substitution of RE 3+ (Y 3+ with Gd 3+ and Lu 3+ ions) influences on luminescent properties of RE 1.98 Eu 0.02 Sn 2 O 7 and thermal stability of their luminescence. In order to understand better luminescent properties, the Judd–Ofelt analysis was applied to all the synthesized powders. The highest value of quantum efficiency, ~96%, was estimated for Lu 1.98 Eu 0.02 Sn 2 O 7 . To assess potential application in high-power LEDs, the temperature-dependent emission spectra of Y 1.98 Eu 0.02 Sn 2 O 7 , Gd 1.98 Eu 0.02 Sn 2 O 7 and Lu 1.98 Eu 0.02 Sn 2 O 7 nanophosphors were studied. © 2019 Elsevier B.V.
T2  - Powder Technology
T1  - Photoluminescence properties and thermal stability of RE2-xEuxSn2O7 (RE = Y3+, Gd3+, Lu3+) red nanophosphors: An experimental and theoretical study
VL  - 346
SP  - 150
EP  - 159
DO  - 10.1016/j.powtec.2019.02.013
ER  - 
@article{
author = "Papan, Jelena and Jovanović, Dragana J. and Sekulić, Milica and Glais, Estelle and Dramićanin, Miroslav",
year = "2019",
abstract = "Defect-fluorite structured Eu 3+ -doped Y 2 Sn 2 O 7 nanoparticles (30–40 nm) were successfully prepared through a facile co-precipitation method without any organic additives or templates followed by calcination in air. Luminescent properties of the as-prepared Y 2-x Eu x Sn 2 O 7 (0.02 ≤ x ≤ 0.6) nanophosphors were fully characterized from an experimental and theoretical point of view (excitation, emission, lifetime, critical concentration, temperature-dependent luminescence and thermal stability, type of interactions and the Judd-Ofelt analysis). The nanophosphors showed relatively sharp excitation bands from 360 to 530 nm and exhibited characteristic emission bands with the most intensive emission centered at 612 nm. In addition, Gd 1.98 Eu 0.02 Sn 2 O 7 and Lu 1.98 Eu 0.02 Sn 2 O 7 samples were prepared in order to study how substitution of RE 3+ (Y 3+ with Gd 3+ and Lu 3+ ions) influences on luminescent properties of RE 1.98 Eu 0.02 Sn 2 O 7 and thermal stability of their luminescence. In order to understand better luminescent properties, the Judd–Ofelt analysis was applied to all the synthesized powders. The highest value of quantum efficiency, ~96%, was estimated for Lu 1.98 Eu 0.02 Sn 2 O 7 . To assess potential application in high-power LEDs, the temperature-dependent emission spectra of Y 1.98 Eu 0.02 Sn 2 O 7 , Gd 1.98 Eu 0.02 Sn 2 O 7 and Lu 1.98 Eu 0.02 Sn 2 O 7 nanophosphors were studied. © 2019 Elsevier B.V.",
journal = "Powder Technology",
title = "Photoluminescence properties and thermal stability of RE2-xEuxSn2O7 (RE = Y3+, Gd3+, Lu3+) red nanophosphors: An experimental and theoretical study",
volume = "346",
pages = "150-159",
doi = "10.1016/j.powtec.2019.02.013"
}
Papan, J., Jovanović, D. J., Sekulić, M., Glais, E.,& Dramićanin, M.. (2019). Photoluminescence properties and thermal stability of RE2-xEuxSn2O7 (RE = Y3+, Gd3+, Lu3+) red nanophosphors: An experimental and theoretical study. in Powder Technology, 346, 150-159.
https://doi.org/10.1016/j.powtec.2019.02.013
Papan J, Jovanović DJ, Sekulić M, Glais E, Dramićanin M. Photoluminescence properties and thermal stability of RE2-xEuxSn2O7 (RE = Y3+, Gd3+, Lu3+) red nanophosphors: An experimental and theoretical study. in Powder Technology. 2019;346:150-159.
doi:10.1016/j.powtec.2019.02.013 .
Papan, Jelena, Jovanović, Dragana J., Sekulić, Milica, Glais, Estelle, Dramićanin, Miroslav, "Photoluminescence properties and thermal stability of RE2-xEuxSn2O7 (RE = Y3+, Gd3+, Lu3+) red nanophosphors: An experimental and theoretical study" in Powder Technology, 346 (2019):150-159,
https://doi.org/10.1016/j.powtec.2019.02.013 . .
8
8
8

Structure, morphology, and luminescent behavior of RE3+-doped GdVO4 thin films

Antić, Željka; Prashanthi, Kovur; Jovanović, Dragana J.; Thundat, Thomas; Dramićanin, Miroslav

(2019)

TY  - JOUR
AU  - Antić, Željka
AU  - Prashanthi, Kovur
AU  - Jovanović, Dragana J.
AU  - Thundat, Thomas
AU  - Dramićanin, Miroslav
PY  - 2019
UR  - http://link.springer.com/10.1007/s00339-019-2703-9
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/8205
AB  - This report focuses on fabrication, characterization, and fundamental optical properties of Eu 3+ - and Sm 3+ -doped GdVO 4 luminescent thin films. Films were uniformly grown on three different substrates: single crystal sapphire (0001), thermally grown silicon oxide (Si/SiO 2 ~ 500 nm) on silicon and fused quartz using pulsed laser deposition technique. Thin films’ structure, morphology, and photoluminescent properties were investigated by X-ray diffraction, atomic force and scanning electron microscopy, diffuse reflectance and photoluminescence spectroscopy. Thin films’ structure characterized by X-ray diffraction showed that for all substrates highly crystalline, zircon-type pure phase films were formed. Films’ thickness and internal morphology were determined by cross-sectional scanning electron microscopy showing completely dense, pore-free film with an average thickness of ~ 390 nm. Atomic force microscopy revealed that the average crystallite size of both Eu 3+ - and Sm 3+ -doped GdVO 4 thin films deposited on fused quartz is higher as compared to the single crystal sapphire (0001) and thermally grown silicon oxide (Si/SiO 2 ~ 500 nm) and that the surface roughness increases with the increase in the grain size. Energy band gap values, estimated from diffuse reflectance spectra were 3.57 and 3.53 eV for Eu 3+ - and Sm 3+ -doped GdVO 4 thin films, respectively. Photoluminescent properties were investigated in detail in both steady state and lifetime domain. The emission spectra show clear orange–red emission in the Sm 3+ -doped GdVO 4 thin films and red emission in Eu 3+ -doped ones. © 2019, Springer-Verlag GmbH Germany, part of Springer Nature.
T2  - Applied Physics A
T1  - Structure, morphology, and luminescent behavior of RE3+-doped GdVO4 thin films
VL  - 125
IS  - 6
SP  - 410
DO  - 10.1007/s00339-019-2703-9
ER  - 
@article{
author = "Antić, Željka and Prashanthi, Kovur and Jovanović, Dragana J. and Thundat, Thomas and Dramićanin, Miroslav",
year = "2019",
abstract = "This report focuses on fabrication, characterization, and fundamental optical properties of Eu 3+ - and Sm 3+ -doped GdVO 4 luminescent thin films. Films were uniformly grown on three different substrates: single crystal sapphire (0001), thermally grown silicon oxide (Si/SiO 2 ~ 500 nm) on silicon and fused quartz using pulsed laser deposition technique. Thin films’ structure, morphology, and photoluminescent properties were investigated by X-ray diffraction, atomic force and scanning electron microscopy, diffuse reflectance and photoluminescence spectroscopy. Thin films’ structure characterized by X-ray diffraction showed that for all substrates highly crystalline, zircon-type pure phase films were formed. Films’ thickness and internal morphology were determined by cross-sectional scanning electron microscopy showing completely dense, pore-free film with an average thickness of ~ 390 nm. Atomic force microscopy revealed that the average crystallite size of both Eu 3+ - and Sm 3+ -doped GdVO 4 thin films deposited on fused quartz is higher as compared to the single crystal sapphire (0001) and thermally grown silicon oxide (Si/SiO 2 ~ 500 nm) and that the surface roughness increases with the increase in the grain size. Energy band gap values, estimated from diffuse reflectance spectra were 3.57 and 3.53 eV for Eu 3+ - and Sm 3+ -doped GdVO 4 thin films, respectively. Photoluminescent properties were investigated in detail in both steady state and lifetime domain. The emission spectra show clear orange–red emission in the Sm 3+ -doped GdVO 4 thin films and red emission in Eu 3+ -doped ones. © 2019, Springer-Verlag GmbH Germany, part of Springer Nature.",
journal = "Applied Physics A",
title = "Structure, morphology, and luminescent behavior of RE3+-doped GdVO4 thin films",
volume = "125",
number = "6",
pages = "410",
doi = "10.1007/s00339-019-2703-9"
}
Antić, Ž., Prashanthi, K., Jovanović, D. J., Thundat, T.,& Dramićanin, M.. (2019). Structure, morphology, and luminescent behavior of RE3+-doped GdVO4 thin films. in Applied Physics A, 125(6), 410.
https://doi.org/10.1007/s00339-019-2703-9
Antić Ž, Prashanthi K, Jovanović DJ, Thundat T, Dramićanin M. Structure, morphology, and luminescent behavior of RE3+-doped GdVO4 thin films. in Applied Physics A. 2019;125(6):410.
doi:10.1007/s00339-019-2703-9 .
Antić, Željka, Prashanthi, Kovur, Jovanović, Dragana J., Thundat, Thomas, Dramićanin, Miroslav, "Structure, morphology, and luminescent behavior of RE3+-doped GdVO4 thin films" in Applied Physics A, 125, no. 6 (2019):410,
https://doi.org/10.1007/s00339-019-2703-9 . .
1
1

Synthesis and thermal properties of arylazo pyridone dyes

Porobić, Slavica; Krstić, Aleksandar D.; Jovanović, Dragana J.; Lađarević, Jelena M.; Katnić, Đurica B.; Mijin, Dušan Ž.; Marinović-Cincović, Milena

(2019)

TY  - JOUR
AU  - Porobić, Slavica
AU  - Krstić, Aleksandar D.
AU  - Jovanović, Dragana J.
AU  - Lađarević, Jelena M.
AU  - Katnić, Đurica B.
AU  - Mijin, Dušan Ž.
AU  - Marinović-Cincović, Milena
PY  - 2019
UR  - https://linkinghub.elsevier.com/retrieve/pii/S0143720819310551
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/8228
AB  - Thermal degradation properties of 5-(4-substitutedphenylazo)-3-amido-6-hydroxy-4-methyl-2-pyridones and 5-(4-substitutedphenylazo)-3-cyano-6-hydroxy-4-methyl-2-pyridones dyes, differing in electron withdrawing and electron donating substituents in para-position of diazo components were examined. The structure of the synthesized compounds has been confirmed by 1H NMR,13C NMR, FTIR, UV–Vis and XRD analysis techniques. The results obtained with thermogravimetric analysis (TGA) – derivative thermogravimetry (DTG) and differential thermal analysis (DTA) were combined with GC-mass spectral fragmentation to obtain thermal decomposition mechanism. Non-isothermal kinetics were monitored by application of TGA-DTG-DTA. For Kinetic behavior of the investigated dyes during their degradation in an inert atmosphere, Kissinger, Ozawa, Flynn-Wall-Ozawa (FWO) and Kissinger-Akahira-Sunose (KAS) isoconversional (model-free) methods were applied. It was found that different thermal stabilities of investigated dyes are the consequence of their different chemical structures, including diverse substituents. © 2019
T2  - Dyes and Pigments
T1  - Synthesis and thermal properties of arylazo pyridone dyes
VL  - 170
SP  - 107602
DO  - 10.1016/j.dyepig.2019.107602
ER  - 
@article{
author = "Porobić, Slavica and Krstić, Aleksandar D. and Jovanović, Dragana J. and Lađarević, Jelena M. and Katnić, Đurica B. and Mijin, Dušan Ž. and Marinović-Cincović, Milena",
year = "2019",
abstract = "Thermal degradation properties of 5-(4-substitutedphenylazo)-3-amido-6-hydroxy-4-methyl-2-pyridones and 5-(4-substitutedphenylazo)-3-cyano-6-hydroxy-4-methyl-2-pyridones dyes, differing in electron withdrawing and electron donating substituents in para-position of diazo components were examined. The structure of the synthesized compounds has been confirmed by 1H NMR,13C NMR, FTIR, UV–Vis and XRD analysis techniques. The results obtained with thermogravimetric analysis (TGA) – derivative thermogravimetry (DTG) and differential thermal analysis (DTA) were combined with GC-mass spectral fragmentation to obtain thermal decomposition mechanism. Non-isothermal kinetics were monitored by application of TGA-DTG-DTA. For Kinetic behavior of the investigated dyes during their degradation in an inert atmosphere, Kissinger, Ozawa, Flynn-Wall-Ozawa (FWO) and Kissinger-Akahira-Sunose (KAS) isoconversional (model-free) methods were applied. It was found that different thermal stabilities of investigated dyes are the consequence of their different chemical structures, including diverse substituents. © 2019",
journal = "Dyes and Pigments",
title = "Synthesis and thermal properties of arylazo pyridone dyes",
volume = "170",
pages = "107602",
doi = "10.1016/j.dyepig.2019.107602"
}
Porobić, S., Krstić, A. D., Jovanović, D. J., Lađarević, J. M., Katnić, Đ. B., Mijin, D. Ž.,& Marinović-Cincović, M.. (2019). Synthesis and thermal properties of arylazo pyridone dyes. in Dyes and Pigments, 170, 107602.
https://doi.org/10.1016/j.dyepig.2019.107602
Porobić S, Krstić AD, Jovanović DJ, Lađarević JM, Katnić ĐB, Mijin DŽ, Marinović-Cincović M. Synthesis and thermal properties of arylazo pyridone dyes. in Dyes and Pigments. 2019;170:107602.
doi:10.1016/j.dyepig.2019.107602 .
Porobić, Slavica, Krstić, Aleksandar D., Jovanović, Dragana J., Lađarević, Jelena M., Katnić, Đurica B., Mijin, Dušan Ž., Marinović-Cincović, Milena, "Synthesis and thermal properties of arylazo pyridone dyes" in Dyes and Pigments, 170 (2019):107602,
https://doi.org/10.1016/j.dyepig.2019.107602 . .
6
6
6

Judd-Ofelt and chromaticity analysis of hafnia doped with trivalent europium as a potential white LED phosphor

Ćirić, Aleksandar; Stojadinović, Stevan; Dramićanin, Miroslav

(2019)

TY  - JOUR
AU  - Ćirić, Aleksandar
AU  - Stojadinović, Stevan
AU  - Dramićanin, Miroslav
PY  - 2019
UR  - https://linkinghub.elsevier.com/retrieve/pii/S0925346718308073
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/8008
AB  - Judd-Ofelt analysis of HfO2:Eu3+ with various europium doping concentrations, formed by plasma electrolytic oxidation, had been investigated. Ω2 parameter is increasing, while Ω4 parameter shows no concentration dependence. For the highest europium doping concentration of 0.62 at% Ω2 = 4.03·10−20 cm2 and Ω4 = 2.26·10−20 cm2. Radiative transition probabilities of each allowed emitting level were calculated. The radiative lifetime of 5D0 emitting level and a relatively high cross section of emission 5D0→7F2 were estimated: 1.58 ms and 13.49·10−22 cm2, respectively. CIELUV coordinates of photoluminescence of HfO2 doped with various europium concentrations and by excitation with UV 270 nm and 395 nm beam had been calculated and plotted to the CIE 1976 diagram. For low concentrations HfO2:Eu3+ and UV excitation the material gives almost pure white luminescence, which is an indication for its potential use as a white LED phosphor. © 2018 Elsevier B.V.
T2  - Optical Materials
T1  - Judd-Ofelt and chromaticity analysis of hafnia doped with trivalent europium as a potential white LED phosphor
VL  - 88
SP  - 392
EP  - 395
DO  - 10.1016/j.optmat.2018.11.056
ER  - 
@article{
author = "Ćirić, Aleksandar and Stojadinović, Stevan and Dramićanin, Miroslav",
year = "2019",
abstract = "Judd-Ofelt analysis of HfO2:Eu3+ with various europium doping concentrations, formed by plasma electrolytic oxidation, had been investigated. Ω2 parameter is increasing, while Ω4 parameter shows no concentration dependence. For the highest europium doping concentration of 0.62 at% Ω2 = 4.03·10−20 cm2 and Ω4 = 2.26·10−20 cm2. Radiative transition probabilities of each allowed emitting level were calculated. The radiative lifetime of 5D0 emitting level and a relatively high cross section of emission 5D0→7F2 were estimated: 1.58 ms and 13.49·10−22 cm2, respectively. CIELUV coordinates of photoluminescence of HfO2 doped with various europium concentrations and by excitation with UV 270 nm and 395 nm beam had been calculated and plotted to the CIE 1976 diagram. For low concentrations HfO2:Eu3+ and UV excitation the material gives almost pure white luminescence, which is an indication for its potential use as a white LED phosphor. © 2018 Elsevier B.V.",
journal = "Optical Materials",
title = "Judd-Ofelt and chromaticity analysis of hafnia doped with trivalent europium as a potential white LED phosphor",
volume = "88",
pages = "392-395",
doi = "10.1016/j.optmat.2018.11.056"
}
Ćirić, A., Stojadinović, S.,& Dramićanin, M.. (2019). Judd-Ofelt and chromaticity analysis of hafnia doped with trivalent europium as a potential white LED phosphor. in Optical Materials, 88, 392-395.
https://doi.org/10.1016/j.optmat.2018.11.056
Ćirić A, Stojadinović S, Dramićanin M. Judd-Ofelt and chromaticity analysis of hafnia doped with trivalent europium as a potential white LED phosphor. in Optical Materials. 2019;88:392-395.
doi:10.1016/j.optmat.2018.11.056 .
Ćirić, Aleksandar, Stojadinović, Stevan, Dramićanin, Miroslav, "Judd-Ofelt and chromaticity analysis of hafnia doped with trivalent europium as a potential white LED phosphor" in Optical Materials, 88 (2019):392-395,
https://doi.org/10.1016/j.optmat.2018.11.056 . .
12
11
11

Custom-built thermometry apparatus and luminescence intensity ratio thermometry of ZrO 2 :Eu 3+ and Nb 2 O 5 :Eu 3+

Ćirić, Aleksandar; Stojadinović, Stevan; Dramićanin, Miroslav

(2019)

TY  - JOUR
AU  - Ćirić, Aleksandar
AU  - Stojadinović, Stevan
AU  - Dramićanin, Miroslav
PY  - 2019
UR  - http://stacks.iop.org/0957-0233/30/i=4/a=045001?key=crossref.fcfd5f513dd39de22ee7df6f52b6a780
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/8140
AB  - A complete apparatus for luminescence thermometry has been built comprising a programmable hot-plate up to 400 °C, a hot/cold plate 0 °C-80 °C, a control circuit with thermocouple feedback, a platinum resistance thermometer and an oven for calibration. An original design allowed us to build the apparatus for under 100 $, considerably less than for the commercial equipment. The apparatus must be used with an optical fiber bundle attached to a spectrofluorometer. It is tested for stability and on ZrO 2 :Eu 3+ and Nb 2 O 5 :Eu 3+ samples prepared by a plasma electrolytic process. The tests showed the high stability of the temperature-controlled surfaces. The thermometric properties of the investigated material were tested by the luminescence intensity ratio method of 5 D 1 → 7 F 1 and 5 D 0 → 7 F 2 transitions. The calculated relative sensitivities of Nb 2 O 5 :Eu 3+ and ZrO 2 :Eu 3+ are 3.17% K -1 and 3.07% K -1 at 290 K, respectively, and 0.0012 K -1 at 453 K and 0.000 12 K -1 at 445 K are the calculated absolute sensitivity values, respectively. Nb 2 O 5 :Eu 3+ has shown good thermometric properties up to 180 °C, while ZrO 2 :Eu 3+ is a promising temperature sensor phosphor for higher temperature measurements. © 2019 IOP Publishing Ltd.
T2  - Measurement Science and Technology
T1  - Custom-built thermometry apparatus and luminescence intensity ratio thermometry of ZrO 2 :Eu 3+ and Nb 2 O 5 :Eu 3+
VL  - 30
IS  - 4
SP  - 045001
DO  - 10.1088/1361-6501/ab01b4
ER  - 
@article{
author = "Ćirić, Aleksandar and Stojadinović, Stevan and Dramićanin, Miroslav",
year = "2019",
abstract = "A complete apparatus for luminescence thermometry has been built comprising a programmable hot-plate up to 400 °C, a hot/cold plate 0 °C-80 °C, a control circuit with thermocouple feedback, a platinum resistance thermometer and an oven for calibration. An original design allowed us to build the apparatus for under 100 $, considerably less than for the commercial equipment. The apparatus must be used with an optical fiber bundle attached to a spectrofluorometer. It is tested for stability and on ZrO 2 :Eu 3+ and Nb 2 O 5 :Eu 3+ samples prepared by a plasma electrolytic process. The tests showed the high stability of the temperature-controlled surfaces. The thermometric properties of the investigated material were tested by the luminescence intensity ratio method of 5 D 1 → 7 F 1 and 5 D 0 → 7 F 2 transitions. The calculated relative sensitivities of Nb 2 O 5 :Eu 3+ and ZrO 2 :Eu 3+ are 3.17% K -1 and 3.07% K -1 at 290 K, respectively, and 0.0012 K -1 at 453 K and 0.000 12 K -1 at 445 K are the calculated absolute sensitivity values, respectively. Nb 2 O 5 :Eu 3+ has shown good thermometric properties up to 180 °C, while ZrO 2 :Eu 3+ is a promising temperature sensor phosphor for higher temperature measurements. © 2019 IOP Publishing Ltd.",
journal = "Measurement Science and Technology",
title = "Custom-built thermometry apparatus and luminescence intensity ratio thermometry of ZrO 2 :Eu 3+ and Nb 2 O 5 :Eu 3+",
volume = "30",
number = "4",
pages = "045001",
doi = "10.1088/1361-6501/ab01b4"
}
Ćirić, A., Stojadinović, S.,& Dramićanin, M.. (2019). Custom-built thermometry apparatus and luminescence intensity ratio thermometry of ZrO 2 :Eu 3+ and Nb 2 O 5 :Eu 3+. in Measurement Science and Technology, 30(4), 045001.
https://doi.org/10.1088/1361-6501/ab01b4
Ćirić A, Stojadinović S, Dramićanin M. Custom-built thermometry apparatus and luminescence intensity ratio thermometry of ZrO 2 :Eu 3+ and Nb 2 O 5 :Eu 3+. in Measurement Science and Technology. 2019;30(4):045001.
doi:10.1088/1361-6501/ab01b4 .
Ćirić, Aleksandar, Stojadinović, Stevan, Dramićanin, Miroslav, "Custom-built thermometry apparatus and luminescence intensity ratio thermometry of ZrO 2 :Eu 3+ and Nb 2 O 5 :Eu 3+" in Measurement Science and Technology, 30, no. 4 (2019):045001,
https://doi.org/10.1088/1361-6501/ab01b4 . .
10
10
10

Approximate prediction of the CIE coordinates of lanthanide-doped materials from the Judd-Ofelt intensity parameters

Ćirić, Aleksandar; Stojadinović, Stevan; Dramićanin, Miroslav

(2019)

TY  - JOUR
AU  - Ćirić, Aleksandar
AU  - Stojadinović, Stevan
AU  - Dramićanin, Miroslav
PY  - 2019
UR  - https://linkinghub.elsevier.com/retrieve/pii/S0022231319307859
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/8222
AB  - A theoretical model for approximate evaluation of CIE chromaticity coordinates from the Judd-Ofelt intensity parameters has been presented. By reviewing the photoluminescence properties of all the lanthanides, the model's applicability was restricted to Nd3+, Sm3+, Eu3+, Tb3+ and Dy3+. Explicit equations for calculation of CIE coordinates for each of the allowed lanthanides were tested on Y2O3:Eu3+, P2O5·ZnO·Al2O3·BaO·PbO:Tb3+, LiNbO3:Dy3+, LaF3:Sm3+, LaF3:Eu3+, Ca3Sc2Si3O12:Eu3+, and TeO2·TiO2·Nb2O5:Nd3+ by comparing the CIE coordinates of the actual spectra to the coordinates obtained from the Judd-Ofelt parameters, with overall adequate matching. © 2019 Elsevier B.V.
T2  - Journal of Luminescence
T1  - Approximate prediction of the CIE coordinates of lanthanide-doped materials from the Judd-Ofelt intensity parameters
VL  - 213
SP  - 395
EP  - 400
DO  - 10.1016/j.jlumin.2019.05.052
ER  - 
@article{
author = "Ćirić, Aleksandar and Stojadinović, Stevan and Dramićanin, Miroslav",
year = "2019",
abstract = "A theoretical model for approximate evaluation of CIE chromaticity coordinates from the Judd-Ofelt intensity parameters has been presented. By reviewing the photoluminescence properties of all the lanthanides, the model's applicability was restricted to Nd3+, Sm3+, Eu3+, Tb3+ and Dy3+. Explicit equations for calculation of CIE coordinates for each of the allowed lanthanides were tested on Y2O3:Eu3+, P2O5·ZnO·Al2O3·BaO·PbO:Tb3+, LiNbO3:Dy3+, LaF3:Sm3+, LaF3:Eu3+, Ca3Sc2Si3O12:Eu3+, and TeO2·TiO2·Nb2O5:Nd3+ by comparing the CIE coordinates of the actual spectra to the coordinates obtained from the Judd-Ofelt parameters, with overall adequate matching. © 2019 Elsevier B.V.",
journal = "Journal of Luminescence",
title = "Approximate prediction of the CIE coordinates of lanthanide-doped materials from the Judd-Ofelt intensity parameters",
volume = "213",
pages = "395-400",
doi = "10.1016/j.jlumin.2019.05.052"
}
Ćirić, A., Stojadinović, S.,& Dramićanin, M.. (2019). Approximate prediction of the CIE coordinates of lanthanide-doped materials from the Judd-Ofelt intensity parameters. in Journal of Luminescence, 213, 395-400.
https://doi.org/10.1016/j.jlumin.2019.05.052
Ćirić A, Stojadinović S, Dramićanin M. Approximate prediction of the CIE coordinates of lanthanide-doped materials from the Judd-Ofelt intensity parameters. in Journal of Luminescence. 2019;213:395-400.
doi:10.1016/j.jlumin.2019.05.052 .
Ćirić, Aleksandar, Stojadinović, Stevan, Dramićanin, Miroslav, "Approximate prediction of the CIE coordinates of lanthanide-doped materials from the Judd-Ofelt intensity parameters" in Journal of Luminescence, 213 (2019):395-400,
https://doi.org/10.1016/j.jlumin.2019.05.052 . .
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