Kinetic investigations of oxidative degradation of aromatic pollutant 2,4,6-trichlorophenol by an iron-porphyrin complex, a model of ligninase

被引：38
|
作者：
Shukla, RS
Robert, A
Meunier, B
机构：
[1] Ctrl. Salt and Mar. Chem. Res. Inst.
[2] Lab. de Chim. de Coord. du CNRS, 31077 Toulouse Cedex
来源：
JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL | 1996年 / 113卷 / 1-2期
关键词：
trichlorophenol oxidation; metalloporphyrin catalyzed reaction; kinetics;
D O I：
10.1016/S1381-1169(96)00105-7
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：
Oxidative degradation of aromatic pollutant 2,4,6-trichlorophenol to 2,6-dichloro-1,4-benzoquinone was found to be efficiently catalyzed by the iron(III) complex of tetrakis(3,5-disulfonatomesityl)porphyrin (FeTMPS) associated with KHSO5 as an oxygen atom donor [1-3]. The kinetics of this reaction was investigated at 20 degrees C, pH 3 by determining the dependence of the reaction rate on factors such as concentration of 2,4,6-trichlorophenol, FeTMPS and KHSO5. For this reaction, the proposed mechanism involves the formation of 2,6-dichlorobenzoquinone via a peroxidase-type oxidation of the chlorinated phenol.
引用
收藏
页码：45 / 49
页数：5
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