Hlogyik Tamás; Náfrádi Máté; Alapi Tünde: Heterogeneous photocatalysis of imidacloprid : effect of reaction parameters, mineralization and matrices.
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Absztrakt (kivonat)
The photocatalytic removal of imidacloprid, a neonicotinoid insecticide with serious environmental effects, has been investigated. Photocatalytic treatment using TiO2 photocatalyst was effective at the complete transformation of imidacloprid over 30 minutes. The mineralization was also investigated, and the reduction of total organic carbon and chemical oxygen demand was inhibited after the transformation of imidacloprid, indicating the accumulation of degradation products resistant to HO•. The dechlorination of the organic content was complete, but only 25 % of total nitrogen content was transformed into NO3 indicating that the accumulated products are nitrogen containing organic compounds. The effect of two light matrices, drinking water and purified industrial wastewater was also investigated. The low organic content of the wastewater only slightly reduced the transformation rate of imidacloprid, but the high ionic content of drinking water significantly reduced the effectiveness by increasing the aggreagation of TiO2.
| Mű típusa: | Konferencia vagy workshop anyag |
|---|---|
| Befoglaló folyóirat/kiadvány címe: | Proceedings of the International Symposium on Analytical and Environmental Problems |
| Dátum: | 2019 |
| ISBN: | 978-963-306-702-4 |
| Oldalak: | pp. 321-325 |
| Konferencia neve: | International Symposium on Analytical and Environmental Problems (25.) (2019) (Szeged) |
| Befoglaló mű URL: | http://acta.bibl.u-szeged.hu/64947/ |
| Kulcsszavak: | Növényvédőszer, Fotokatalízis, Analitikai kémia |
| Megjegyzések: | Bibliogr.: 325. p. ; összefoglalás angol nyelven |
| Feltöltés dátuma: | 2020. már. 20. 09:55 |
| Utolsó módosítás: | 2022. aug. 08. 15:37 |
| URI: | http://acta.bibl.u-szeged.hu/id/eprint/64867 |
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