A new insight into Fenton and Fenton-like processes for water treatment: Part II. Influence of organic compounds on Fe(III)/Fe(II) interconversion and the course of reactions

被引：52

作者：

Jiang, Chengchun ^{[1
]}

Gao, Zhen ^{[2
]}

Qu, Hangling ^{[1
]}

Li, Jinwei ^{[1
]}

Wang, Xiaoxiong ^{[1
]}

Li, Ping ^{[1
]}

Liu, Hong ^{[3
]}

机构：

[1] Shenzhen Polytech, Sch Civil & Environm Engn, Shenzhen 518055, Peoples R China

[2] Hubei Gimbol Environm Technol Co Ltd, Wuhan 430000, Peoples R China

[3] Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Chongqing 401122, Peoples R China

来源：

JOURNAL OF HAZARDOUS MATERIALS | 2013年 / 250卷

基金：

中国国家自然科学基金;

关键词：

Advanced oxidation; Fenton reaction; Hydroxyl radical; Nitrobenzene; Atrazine; ZERO-VALENT IRON; POLYOXOMETALATE-ENHANCED OXIDATION; AQUEOUS-SOLUTIONS; FERROUS ION; DEGRADATION; MECHANISM; QUINONE;

D O I：

10.1016/j.jhazmat.2013.01.055

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The interconversion of Fe(III)/Fe(II) in Fenton (Fe2+/H2O2) and Fenton-like (Fe3+/H2O2) reactions has been studied to better understand their intrinsic mechanisms. The reactions were conducted at an initial pH of 3.0, with H2O2 in excess and iron in catalytic concentrations, and with nitrobenzene and atrazine as model organic compounds. The results of this study have shown that some intermediate species in the degradation of aromatic compounds can influence the interconversion of Fe(III)/Fe(II) in the Fenton and Fenton-like reactions, and hence influence the rate and course of the reactions. Thus, from the point of view of Fe(III)/Fe(II) interconversion, a Fenton-like reaction inevitably involves a classical Fenton reaction, and a Fenton reaction may also involve a Fenton-like reaction step. These two reactions may be somewhat interchangeable and proceed simultaneously. In the case of the degradation of aromatic compounds, the Fenton-like reactions display autocatalytic character, but no such effect is observed for non-aromatic compounds. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：76 / 81

页数：6

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