Role of goethite dissolution in the oxidation of 2-chlorophenol with hydrogen peroxide

被引：118

作者：

Lu, MC

Chen, JN

Huang, HH

机构：

[1] Chia Nan Univ Pharm & Sci, Dept Environm Engn & Hlth, Tainan 717, Taiwan

[2] Natl Tsing Hua Univ, Inst Environm Engn, Hsinchu 300, Taiwan

来源：

CHEMOSPHERE | 2002年 / 46卷 / 01期

关键词：

iron oxide; Fenton-like reaction; reductive dissolution; surface-controlled;

D O I：

10.1016/S0045-6535(01)00076-5

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

It is well known that the dissolution of goethite plays an important role in catalyzing the oxidation of organic chemicals. Therefore, this study investigates how surface dissolution of goethite affects 2-chlorophenol oxidation in the goethite/H2O2 process. Experimental results indicate that ligand and reductant can enhance the dissolution rate of goethite, which is surface-controlled. Our results further indicate 2-chlorophenol degradation depends on goethite concentration. In addition, the oxidation rate of 2-CP is correlated with reductive dissolution rate at various dosages of goethite. Moreover, the oxidation mechanism of 2-CP is also a surface-controlled reaction. A mechanism proposed herein indicates that, in addition to the contaminant, its intermediate species affect the oxidation rate as well. (C) 2001 Elsevier Science Ltd. All rights reserved.

引用

页码：131 / 136

页数：6

共 13 条

[1] PHOTOMETRIC-METHOD FOR THE DETERMINATION OF LOW CONCENTRATIONS OF HYDROGEN-PEROXIDE BY THE PEROXIDASE CATALYZED OXIDATION OF N,N-DIETHYL-P-PHENYLENEDIAMINE (DPD) [J].

BADER, H ;

STURZENEGGER, V ;

HOIGNE, J .

WATER RESEARCH, 1988, 22 (09) :1109-1115

[2]

DONG C, 1993, THESIS U DELAWARE

[3]

Khan M.A.J., 1996, WATER AIR SOIL POLL, V88, P260

[4] Catalytic decomposition of hydrogen peroxide on iron oxide: Kinetics, mechanism, and implications [J].

Lin, SS ;

Gurol, MD .

ENVIRONMENTAL SCIENCE & TECHNOLOGY, 1998, 32 (10) :1417-1423

[5] Oxidation of chlorophenols with hydrogen peroxide in the presence of goethite [J].

Lu, MC .

CHEMOSPHERE, 2000, 40 (02) :125-130

[6] HYDROGEN-PEROXIDE DECOMPOSITION AND QUINOLINE DEGRADATION IN THE PRESENCE OF AQUIFER MATERIAL [J].

MILLER, CM ;

VALENTINE, RL .

WATER RESEARCH, 1995, 29 (10) :2353-2359

[7] REDUCTIVE DISSOLUTION OF MANGANESE(III/IV) OXIDES BY SUBSTITUTED PHENOLS [J].

STONE, AT .

ENVIRONMENTAL SCIENCE & TECHNOLOGY, 1987, 21 (10) :979-988

[8] REDUCTION AND DISSOLUTION OF MANGANESE(III) AND MANGANESE(IV) OXIDES BY ORGANICS .1. REACTION WITH HYDROQUINONE [J].

STONE, AT ;

MORGAN, JJ .

ENVIRONMENTAL SCIENCE & TECHNOLOGY, 1984, 18 (06) :450-456

[9]

Stumm W., CHEM SOLID WATER INT

[10] TREATMENT OF 4 BIOREFRACTORY CONTAMINANTS IN SOILS USING CATALYZED HYDROGEN-PEROXIDE [J].

TYRE, BW ;

WATTS, RJ ;

MILLER, GC .

JOURNAL OF ENVIRONMENTAL QUALITY, 1991, 20 (04) :832-838

← 1 2 →