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Titolo:
Photocatalytic degradation of 3,4-xylyl N-methylcarbamate (MPMC) and othercarbamate pesticides in aqueous TiO2 suspensions
Autore:
Tanaka, K; Robledo, SM; Hisanaga, T; Ali, R; Ramli, Z; Bakar, WA;
Indirizzi:
Natl Inst Mat & Chem Res, Ibaraki, Osaka 3058565, Japan Natl Inst Mat & Chem Res Ibaraki Osaka Japan 3058565 Osaka 3058565, Japan Natl Ctr Metrol, Queretaro, Mexico Natl Ctr Metrol Queretaro MexicoNatl Ctr Metrol, Queretaro, Mexico Univ Teknoliji Malaysia, Dept Chem, Johor Bahru 80990, Johor, Malaysia Univ Teknoliji Malaysia Johor Bahru Johor Malaysia 80990 Johor, Malaysia
Titolo Testata:
JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL
fascicolo: 3, volume: 144, anno: 1999,
pagine: 425 - 430
SICI:
1381-1169(19990819)144:3<425:PDO3N(>2.0.ZU;2-1
Fonte:
ISI
Lingua:
ENG
Soggetto:
WATER; PHOTODEGRADATION; INSECTICIDES; OZONATION;
Keywords:
carbamate; photocatalytic degradation; pesticide;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
22
Recensione:
Indirizzi per estratti:
Indirizzo: Tanaka, K Natl Inst Mat & Chem Res, 1-1 Higashi, Ibaraki, Osaka 3058565, Japan Natl Inst Mat & Chem Res 1-1 Higashi Ibaraki Osaka Japan 3058565
Citazione:
K. Tanaka et al., "Photocatalytic degradation of 3,4-xylyl N-methylcarbamate (MPMC) and othercarbamate pesticides in aqueous TiO2 suspensions", J MOL CAT A, 144(3), 1999, pp. 425-430

Abstract

Five carbamate pesticides were degraded photocatalytically on TiO2. The comparison of their disappearance rates showed that the degradation rate is governed predominantly by their adsorbability to TiO2, and followed Hammett's law in a different manner from ordinary electrophilic reaction, As a degradation pathway of 3,4-xylyl N-methylcarbamate (MPMC) successive hydroxylation of aromatic ring was suggested, and polyhydroxylation is considered to lead to the opening of the aromatic ring to form oxygenated aliphatic intermediates. It was indicated in this process that the formation of acetic acid, one of the major aliphatic intermediates, mainly originates from methyl substituents on the aromatic ring. (C) 1999 Elsevier Science B.V. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 24/10/20 alle ore 11:29:32