Stanković, Ana

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orcid::0000-0003-4433-2560
  • Stanković, Ana (2)
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Author's Bibliography

Effect of PEO molecular weight on sunlight induced photocatalytic activity of ZnO/PEO composites

Markovic, Smilja; Rajić, Vladimir; Stanković, Ana; Veselinovic, Ljiljana; Belošević-Čavor, Jelena; Batalović, Katarina; Abazović, Nadica; Škapin, Srečo Davor; Uskoković, Dragan

(2016)

TY  - JOUR
AU  - Markovic, Smilja
AU  - Rajić, Vladimir
AU  - Stanković, Ana
AU  - Veselinovic, Ljiljana
AU  - Belošević-Čavor, Jelena
AU  - Batalović, Katarina
AU  - Abazović, Nadica
AU  - Škapin, Srečo Davor
AU  - Uskoković, Dragan
PY  - 2016
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/963
AB  - ZnO spheroidal nanoparticles, synthesized by microwave processing, were used for preparation of composites with polyethylene oxide (PEO). The phase purity and crystal structure of the composites were investigated by X-ray diffraction (XRD) and Raman spectroscopy. The composites particles morphology and size distributions were studied by FE-SEM and laser diffraction particle size analyzer, respectively. The optical properties were studied using UV Vis diffuse reflectance and photoluminescence spectroscopy. It is found that in the wavelength range 550-800 nm, ZnO and ZnO/PEO composites absorb about 50% of the incident light intensity. Also red-shift of band gap energy (0.12-0.15 eV) compared to bulk ZnO was determined. The effect of PEO molecular weights, 200,000, 600,000 and 900,000 g/mol, on photocatalytic activity of ZnO/PEO composites were examined via de-colorization of methylene blue (MB) under direct sunlight irradiation. A large efficiency of MB de-colorization was found after 6 h of irradiation. The enhanced photocatalytic activity of ZnO/PEO composites is attributed to the: (1) lattice defects introduced in ZnO crystal structure by rapid microwave processing, and (2) presence of PEO as a source of oxygen interstitials. In order to confirm and further clarify the experimental results ab initio calculations based on density functional theory (DFT) were performed. (C) 2016 Elsevier Ltd. All rights reserved.
T2  - Solar Energy
T1  - Effect of PEO molecular weight on sunlight induced photocatalytic activity of ZnO/PEO composites
VL  - 127
SP  - 124
EP  - 135
DO  - 10.1016/j.solener.2016.01.026
ER  - 
@article{
author = "Markovic, Smilja and Rajić, Vladimir and Stanković, Ana and Veselinovic, Ljiljana and Belošević-Čavor, Jelena and Batalović, Katarina and Abazović, Nadica and Škapin, Srečo Davor and Uskoković, Dragan",
year = "2016",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/963",
abstract = "ZnO spheroidal nanoparticles, synthesized by microwave processing, were used for preparation of composites with polyethylene oxide (PEO). The phase purity and crystal structure of the composites were investigated by X-ray diffraction (XRD) and Raman spectroscopy. The composites particles morphology and size distributions were studied by FE-SEM and laser diffraction particle size analyzer, respectively. The optical properties were studied using UV Vis diffuse reflectance and photoluminescence spectroscopy. It is found that in the wavelength range 550-800 nm, ZnO and ZnO/PEO composites absorb about 50% of the incident light intensity. Also red-shift of band gap energy (0.12-0.15 eV) compared to bulk ZnO was determined. The effect of PEO molecular weights, 200,000, 600,000 and 900,000 g/mol, on photocatalytic activity of ZnO/PEO composites were examined via de-colorization of methylene blue (MB) under direct sunlight irradiation. A large efficiency of MB de-colorization was found after 6 h of irradiation. The enhanced photocatalytic activity of ZnO/PEO composites is attributed to the: (1) lattice defects introduced in ZnO crystal structure by rapid microwave processing, and (2) presence of PEO as a source of oxygen interstitials. In order to confirm and further clarify the experimental results ab initio calculations based on density functional theory (DFT) were performed. (C) 2016 Elsevier Ltd. All rights reserved.",
journal = "Solar Energy",
title = "Effect of PEO molecular weight on sunlight induced photocatalytic activity of ZnO/PEO composites",
volume = "127",
pages = "124-135",
doi = "10.1016/j.solener.2016.01.026"
}
Markovic, S., Rajić, V., Stanković, A., Veselinovic, L., Belošević-Čavor, J., Batalović, K., Abazović, N., Škapin, S. D.,& Uskoković, D. (2016). Effect of PEO molecular weight on sunlight induced photocatalytic activity of ZnO/PEO composites.
Solar Energy, 127, 124-135.
https://doi.org/10.1016/j.solener.2016.01.026
Markovic S, Rajić V, Stanković A, Veselinovic L, Belošević-Čavor J, Batalović K, Abazović N, Škapin SD, Uskoković D. Effect of PEO molecular weight on sunlight induced photocatalytic activity of ZnO/PEO composites. Solar Energy. 2016;127:124-135
Markovic Smilja, Rajić Vladimir, Stanković Ana, Veselinovic Ljiljana, Belošević-Čavor Jelena, Batalović Katarina, Abazović Nadica, Škapin Srečo Davor, Uskoković Dragan, "Effect of PEO molecular weight on sunlight induced photocatalytic activity of ZnO/PEO composites" Solar Energy, 127 (2016):124-135,
https://doi.org/10.1016/j.solener.2016.01.026 .
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Mussels as a bio-indicator of the environmental quality of the coastal water of the Boka Kotorska Bay (Montenegro)

Jović, Mihajlo D.; Stanković, Ana; Slavković-Beškoski, Latinka J.; Tomic, Ilija; Degetto, Sandro; Stanković, Slavka

(2011)

TY  - JOUR
AU  - Jović, Mihajlo D.
AU  - Stanković, Ana
AU  - Slavković-Beškoski, Latinka J.
AU  - Tomic, Ilija
AU  - Degetto, Sandro
AU  - Stanković, Slavka
PY  - 2011
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/4411
AB  - The Mediterranean blue mussel Mytilus galloprovincialis was used as a pollution level indicator in the Boka Kotorska Bay of the southeastern Adriatic on the Montenegrin coast. The ever-increasing urbanization and industrialization, combined with a poor sewage system, an increase in both marine and inland traffic, as well as insufficient water circulation in the Bay itself have resulted in some level of pollution. Since heavy metals are extremely toxic and do not easily undergo biodecomposition, the results of this study supply valuable information concerning the metal pollution of the marine environment in Boka Kotorska Bay. The concentrations of the investigated metals and nonmetals accumulated in the mussels were determined during the fall of 2007 using Atomic Absorption Spectroscopy (AAS) for Cr, Mn, Co, Ni, Cu, Cd, Hg, Pb, Sn and V, and Energy Dispersive X-ray Fluorescence (ED-XRF) to determine the concentrations of Fe, Zn, Si, P, S. Cl, K and Ca. ED-XRF was also used to determine the levels of non-metals and elements present in high concentrations. Comparing the data from this study in relation to data from other regions for Mytilus galloprovincialis, the mussel sampled from the Boka Kotorska Bay showed a moderate level of pollution.
T2  - Journal of the Serbian Chemical Society
T1  - Mussels as a bio-indicator of the environmental quality of the coastal water of the Boka Kotorska Bay (Montenegro)
VL  - 76
IS  - 6
SP  - 933
EP  - 946
DO  - 10.2298/JSC101007075J
ER  - 
@article{
author = "Jović, Mihajlo D. and Stanković, Ana and Slavković-Beškoski, Latinka J. and Tomic, Ilija and Degetto, Sandro and Stanković, Slavka",
year = "2011",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/4411",
abstract = "The Mediterranean blue mussel Mytilus galloprovincialis was used as a pollution level indicator in the Boka Kotorska Bay of the southeastern Adriatic on the Montenegrin coast. The ever-increasing urbanization and industrialization, combined with a poor sewage system, an increase in both marine and inland traffic, as well as insufficient water circulation in the Bay itself have resulted in some level of pollution. Since heavy metals are extremely toxic and do not easily undergo biodecomposition, the results of this study supply valuable information concerning the metal pollution of the marine environment in Boka Kotorska Bay. The concentrations of the investigated metals and nonmetals accumulated in the mussels were determined during the fall of 2007 using Atomic Absorption Spectroscopy (AAS) for Cr, Mn, Co, Ni, Cu, Cd, Hg, Pb, Sn and V, and Energy Dispersive X-ray Fluorescence (ED-XRF) to determine the concentrations of Fe, Zn, Si, P, S. Cl, K and Ca. ED-XRF was also used to determine the levels of non-metals and elements present in high concentrations. Comparing the data from this study in relation to data from other regions for Mytilus galloprovincialis, the mussel sampled from the Boka Kotorska Bay showed a moderate level of pollution.",
journal = "Journal of the Serbian Chemical Society",
title = "Mussels as a bio-indicator of the environmental quality of the coastal water of the Boka Kotorska Bay (Montenegro)",
volume = "76",
number = "6",
pages = "933-946",
doi = "10.2298/JSC101007075J"
}
Jović, M. D., Stanković, A., Slavković-Beškoski, L. J., Tomic, I., Degetto, S.,& Stanković, S. (2011). Mussels as a bio-indicator of the environmental quality of the coastal water of the Boka Kotorska Bay (Montenegro).
Journal of the Serbian Chemical Society, 76(6), 933-946.
https://doi.org/10.2298/JSC101007075J
Jović MD, Stanković A, Slavković-Beškoski LJ, Tomic I, Degetto S, Stanković S. Mussels as a bio-indicator of the environmental quality of the coastal water of the Boka Kotorska Bay (Montenegro). Journal of the Serbian Chemical Society. 2011;76(6):933-946
Jović Mihajlo D., Stanković Ana, Slavković-Beškoski Latinka J., Tomic Ilija, Degetto Sandro, Stanković Slavka, "Mussels as a bio-indicator of the environmental quality of the coastal water of the Boka Kotorska Bay (Montenegro)" Journal of the Serbian Chemical Society, 76, no. 6 (2011):933-946,
https://doi.org/10.2298/JSC101007075J .
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