Fe(III)-solar light induced degradation of diethyl phthalate (DEP) in aqueous solutions

被引：99

作者：

Mailhot, G ^{[1
]}

Sarakha, M

Lavedrine, B

Cáceres, J

Malato, S

机构：

[1] Univ Clermont Ferrand, Photochim Mol & Macromol Lab, CNRS, UMR 6505, Clermont Ferrand, France

[2] CIEMAT, Plataforma Solar Almeria, Tabernas, Almeria, Spain

来源：

CHEMOSPHERE | 2002年 / 49卷 / 06期

关键词：

iron (III); diethyl phthalate; photodegradation; mineralization; hydroxyl radical;

D O I：

10.1016/S0045-6535(02)00418-6

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The degradation of diethyl phthalate (DEP) photoinduced by Fe(III) in aqueous solutions has been investigated under solar irradiation in the compound parabolic collector reactor at Plataforma Solar de Almeria. Hydroxyl radicals (OH)-O-., responsible of the degradation, are formed via an intramolecular photoredox process in the excited state of Fe(III) aquacomplexes. The primary step of the reaction is mainly due to the attack of (OH)-O-. radicals on the aromatic ring. For prolonged irradiations DEP and its photoproducts are completely mineralized due to the regeneration of the absorbing species and the continuous formation of (OH)-O-. radicals that confers a catalytic aspect to the process. Consequently, the degradation photoinduced by Fe(III) could be an efficient method of DEP removal from water. (C) 2002 Elsevier Science Ltd. All rights reserved.

引用

页码：525 / 532

页数：8

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