A Mechanistic Study of the Photodegradation of Herbicide 2,4,5-Trichlorophenoxyacetic Acid in Aqueous Solution Научная публикация
| Журнал |
Photochemical & Photobiological Sciences
ISSN: 1474-905X , E-ISSN: 1474-9092 |
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| Вых. Данные | Год: 2013, Том: 12, Номер: 4, Страницы: 684-689 Страниц : 6 DOI: 10.1039/C2PP25204J | ||
| Ключевые слова | PULSE-RADIOLYSIS; CYCLODEXTRINS; DEGRADATION; PESTICIDES; PHOTOLYSIS; RADICALS | ||
| Авторы |
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Реферат:
Photodegradation of herbicide 2,4,5-trichlorophenoxyacetic acid (2,4,5-T) in aqueous solution was investigated by stationary (254 nm) and nanosecond laser (266 nm) flash photolysis techniques. It was shown that in the primary photochemical step both photoionization (which generates a hydrated electron–radical cation pair) and heterolytic cleavage of a C–Cl bond takes place. The major products of substitution of one of the chlorine atoms in the 2-, 4- or 5-position by a hydroxyl group as well as the products of hydroxylation of the benzene ring in 3- and 6-positions were identified by HPLC and LC-MS methods. The complexation of 2,4,5-T with β- and γ-cyclodextrins (β(γ)CD) was investigated. The influence of such complexation on the quantum yield of herbicide photolysis and on the ratio of photodegradation products was determined.
Библиографическая ссылка:
Yurkova M.P.
, Pozdnyakov I.P.
, Plyusnin V.F.
, Grivin V.P.
, Bazhin N.M.
, Kruppa A.I.
, Maksimova T.A.
A Mechanistic Study of the Photodegradation of Herbicide 2,4,5-Trichlorophenoxyacetic Acid in Aqueous Solution
Photochemical & Photobiological Sciences. 2013. V.12. N4. P.684-689. DOI: 10.1039/C2PP25204J WOS Scopus РИНЦ CAPlusCA OpenAlex
A Mechanistic Study of the Photodegradation of Herbicide 2,4,5-Trichlorophenoxyacetic Acid in Aqueous Solution
Photochemical & Photobiological Sciences. 2013. V.12. N4. P.684-689. DOI: 10.1039/C2PP25204J WOS Scopus РИНЦ CAPlusCA OpenAlex
Даты:
| Поступила в редакцию: | 20 июн. 2012 г. |
| Принята к публикации: | 3 окт. 2012 г. |
| Опубликована online: | 4 окт. 2012 г. |
| Опубликована в печати: | 1 апр. 2013 г. |
Идентификаторы БД:
| Web of science: | WOS:000316572500015 |
| Scopus: | 2-s2.0-84875673900 |
| РИНЦ: | 20429360 |
| Chemical Abstracts: | 2013:425463 |
| Chemical Abstracts (print): | 160:476581 |
| OpenAlex: | W2023447462 |