Photochemical degradation of dimethyl phthalate by Fenton reagent

被引：113

作者：

Zhao, XK ^{[1
]}

Yang, GP ^{[1
]}

Wang, YJ ^{[1
]}

Gao, XC ^{[1
]}

机构：

[1] Ocean Univ China, Coll Chem & Chem Engn, Qingdao 266003, Peoples R China

来源：

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY | 2004年 / 161卷 / 2-3期

基金：

中国国家自然科学基金;

关键词：

dimethyl phthalate (DMP); photo-degradation; Fenton reagent; Fe(II); H2O2; hydroxyl radical;

D O I：

10.1016/S1010-6030(03)00344-7

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The photochemical degradation of dimethyl phthalate (DMP) in water was investigated under a variety of reaction conditions using hydrogen peroxide and Fe2+ (Fenton reagent) as oxidant. All experiments were conducted under artificial UV light (high pressure Hg lamp). Fenton reagent vigorously enhanced the photo-degradation rate of dimethyl phthalate. The experimental results showed that the optimum conditions were obtained at pH 3 for the UV/H2O2/Fe2+ system, with original H2O2 and Fe2+ concentrations of 5.00x10(-4) and 1.67x10(-4) M, respectively. The photo-degradation percentage of dimethyl phthalate within 120 min was as high as 81% under the optimum conditions. Therefore, the process of photo-Fenton was an effective treatment process under acidic condition and produced a higher photo-degradation percentage of dimethyl phthalate during a very short radiation time. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：215 / 220

页数：6

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