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https://open.uns.ac.rs/handle/123456789/12961
Nаziv: | Photocatalytic removal of the insecticide fenitrothion from water sensitized with TiO <inf>2</inf> | Аutоri: | Topalov A. Molnár-Gábor D. Abramović, Biljana Korom S. Peričin D. |
Dаtum izdаvаnjа: | 21-авг-2003 | Čаsоpis: | Journal of Photochemistry and Photobiology A: Chemistry | Sažetak: | The photocatalytic removal of the insecticide fenitrothion (IUPAC name: O,O-dimethyl O-4-nitro-m-tolyl phosphorothioate), C 9 H 12 NO 5 PS, from water suspension of TiO 2 , was investigated by following the disappearance of the original substance along with the formation and disappearance of intermediates via recording NMR ( 1 H and 31 P) and UV spectra, as well as by pH measurements. Based on the obtained data, a possible reaction mechanism was proposed. It was found that 31 P-NMR spectrometry can be successfully used to follow the kinetics of transforming organic into inorganic phosphorus in the course of the degradation (k a =9.2×10 -7 mol dm -3 min -1 , r=0.980 for the illumination period after 15 h). The rate of fenitrothion aromatic ring decomposition was followed by UV spectrometry during the illumination (k a =3.1×10 -6 mol dm -3 min -1 , r=0.989). The complete mineralization was attained after about 66 h of irradiation. © 2003 Elsevier B.V. All rights reserved. | URI: | https://open.uns.ac.rs/handle/123456789/12961 | ISSN: | 10106030 | DOI: | 10.1016/S1010-6030(03)00266-1 |
Nаlаzi sе u kоlеkciјаmа: | PMF Publikacije/Publications |
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