TY  - JOUR
AU  - Lazarević, Zorica Z.
AU  - Kostić, S.
AU  - Radojević, Vesna
AU  - Romčević, Maja J.
AU  - Gilić, Martina
AU  - Petrović-Damjanović, M.
AU  - Romčević, Nebojša Ž.
PY  - 2013
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2459
AB  - In this work, single crystals of bismuth silicon oxide (BSO; Bi12SiO20) have been grown by the Czochralski method. The growth conditions were studied. The critical diameter and the critical rate of rotation were calculated. Suitable polishing and etching solutions were determined. The structure of the Bi12SiO20 has been investigated by x-ray diffraction (XRD), and Raman and Fourier transform infrared spectroscopy (FTIR) spectroscopy. The results obtained are discussed and compared with the published data. The pale yellow Bi12SiO20 single crystals prepared were without cores. Using spectroscopic measurements 19 Raman and 5 IR modes were observed.
PB  - IOP Publishing Ltd, Bristol
T2  - Physica Scripta
T1  - Raman spectroscopy of bismuth silicon oxide single crystals grown by the Czochralski technique
VL  - T157
DO  - 10.1088/0031-8949/2013/T157/014046
ER  - 

@article{
author = "Lazarević, Zorica Z. and Kostić, S. and Radojević, Vesna and Romčević, Maja J. and Gilić, Martina and Petrović-Damjanović, M. and Romčević, Nebojša Ž.",
year = "2013",
abstract = "In this work, single crystals of bismuth silicon oxide (BSO; Bi12SiO20) have been grown by the Czochralski method. The growth conditions were studied. The critical diameter and the critical rate of rotation were calculated. Suitable polishing and etching solutions were determined. The structure of the Bi12SiO20 has been investigated by x-ray diffraction (XRD), and Raman and Fourier transform infrared spectroscopy (FTIR) spectroscopy. The results obtained are discussed and compared with the published data. The pale yellow Bi12SiO20 single crystals prepared were without cores. Using spectroscopic measurements 19 Raman and 5 IR modes were observed.",
publisher = "IOP Publishing Ltd, Bristol",
journal = "Physica Scripta",
title = "Raman spectroscopy of bismuth silicon oxide single crystals grown by the Czochralski technique",
volume = "T157",
doi = "10.1088/0031-8949/2013/T157/014046"
}

Lazarević, Z. Z., Kostić, S., Radojević, V., Romčević, M. J., Gilić, M., Petrović-Damjanović, M.,& Romčević, N. Ž.. (2013). Raman spectroscopy of bismuth silicon oxide single crystals grown by the Czochralski technique. in Physica Scripta
IOP Publishing Ltd, Bristol., T157.
https://doi.org/10.1088/0031-8949/2013/T157/014046

Lazarević ZZ, Kostić S, Radojević V, Romčević MJ, Gilić M, Petrović-Damjanović M, Romčević NŽ. Raman spectroscopy of bismuth silicon oxide single crystals grown by the Czochralski technique. in Physica Scripta. 2013;T157.
doi:10.1088/0031-8949/2013/T157/014046 .

Lazarević, Zorica Z., Kostić, S., Radojević, Vesna, Romčević, Maja J., Gilić, Martina, Petrović-Damjanović, M., Romčević, Nebojša Ž., "Raman spectroscopy of bismuth silicon oxide single crystals grown by the Czochralski technique" in Physica Scripta, T157 (2013),
https://doi.org/10.1088/0031-8949/2013/T157/014046 . .

TY  - JOUR
AU  - Milenković, N.
AU  - Damjanović, M.
AU  - Ristić, M.
PY  - 2005
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5512
AB  - The pollution of aquatic ecosystems by heavy metals has assumed serious proportions due to their toxicity and accumulative behavior. River dams are especially at risk of contamination by different contaminants from anthropogenic sources including heavy metals since change of the sediment regime often occurs. The largest hydropower dam and reservoir system along the entire Danube, the Iron Gate, is located at the Djerdap Gorge (117 km long) in Serbia and Montenegro. In order to determine the degree of pollution of the Iron Gate by heavy metals, composite sediment samples were collected from seven reaches of the river from Smederevo (river-km 1112) upstream from the Iron Gate dam to Radujevac (river-km 851) downstream from the gorge. The concentrations of As, Cd, Cr, Cu, Fe, Pb, Mn, Hg, Ni and Zn were determined in the sediments. The lowest heavy metal concentrations were measured around river-km 854, downstream from the gorge. The data from this study were compared with data obtained 20 years ago in the same area. It was found that the range of mean concentrations over the entire gorge of Fe, Mn, Ni, Zn, Cu, Cr and Cd increased by 46.6% (Zn at the site Tekija) to 156.2% (Ni at the site Veliko Gradiste). Decreases in concentrations were observed for Hg and Pb. Metal levels in the sediments did not exceed Dutch intervention values, but were higher than the target values for Ni, Zn, Cu, Cr and especially for Cd, indicating contamination not sufficiently high to require remediation/intervention, but not excluding risk to the ecosystem.
PB  - HARD
T2  - Polish Journal of Environmental Studies
T1  - Study of heavy metal pollution in sediments from the Iron Gate (Danube River), Serbia and Montenegro
EP  - 787
IS  - 6
SP  - 781
VL  - 14
UR  - https://hdl.handle.net/21.15107/rcub_technorep_5512
ER  - 

@article{
author = "Milenković, N. and Damjanović, M. and Ristić, M.",
year = "2005",
abstract = "The pollution of aquatic ecosystems by heavy metals has assumed serious proportions due to their toxicity and accumulative behavior. River dams are especially at risk of contamination by different contaminants from anthropogenic sources including heavy metals since change of the sediment regime often occurs. The largest hydropower dam and reservoir system along the entire Danube, the Iron Gate, is located at the Djerdap Gorge (117 km long) in Serbia and Montenegro. In order to determine the degree of pollution of the Iron Gate by heavy metals, composite sediment samples were collected from seven reaches of the river from Smederevo (river-km 1112) upstream from the Iron Gate dam to Radujevac (river-km 851) downstream from the gorge. The concentrations of As, Cd, Cr, Cu, Fe, Pb, Mn, Hg, Ni and Zn were determined in the sediments. The lowest heavy metal concentrations were measured around river-km 854, downstream from the gorge. The data from this study were compared with data obtained 20 years ago in the same area. It was found that the range of mean concentrations over the entire gorge of Fe, Mn, Ni, Zn, Cu, Cr and Cd increased by 46.6% (Zn at the site Tekija) to 156.2% (Ni at the site Veliko Gradiste). Decreases in concentrations were observed for Hg and Pb. Metal levels in the sediments did not exceed Dutch intervention values, but were higher than the target values for Ni, Zn, Cu, Cr and especially for Cd, indicating contamination not sufficiently high to require remediation/intervention, but not excluding risk to the ecosystem.",
publisher = "HARD",
journal = "Polish Journal of Environmental Studies",
title = "Study of heavy metal pollution in sediments from the Iron Gate (Danube River), Serbia and Montenegro",
pages = "787-781",
number = "6",
volume = "14",
url = "https://hdl.handle.net/21.15107/rcub_technorep_5512"
}

Milenković, N., Damjanović, M.,& Ristić, M.. (2005). Study of heavy metal pollution in sediments from the Iron Gate (Danube River), Serbia and Montenegro. in Polish Journal of Environmental Studies
HARD., 14(6), 781-787.
https://hdl.handle.net/21.15107/rcub_technorep_5512

Milenković N, Damjanović M, Ristić M. Study of heavy metal pollution in sediments from the Iron Gate (Danube River), Serbia and Montenegro. in Polish Journal of Environmental Studies. 2005;14(6):781-787.
https://hdl.handle.net/21.15107/rcub_technorep_5512 .

Milenković, N., Damjanović, M., Ristić, M., "Study of heavy metal pollution in sediments from the Iron Gate (Danube River), Serbia and Montenegro" in Polish Journal of Environmental Studies, 14, no. 6 (2005):781-787,
https://hdl.handle.net/21.15107/rcub_technorep_5512 .