Oxidation of 3,4-dihydroxybenzoic acid by means of hydrogen peroxide in aqueous goethite slurry

被引：63

作者：

Andreozzi, R ^{[1
]}

Caprio, V ^{[1
]}

Marotta, R ^{[1
]}

机构：

[1] Univ Naples Federico II, Fac Ingn Chim, Dipartimento Ingn Chim, I-80125 Naples, Italy

来源：

WATER RESEARCH | 2002年 / 36卷 / 11期

关键词：

3,4 dihydroxyberizoic acid; goethite; hydrogen peroxide decomposition; oxidation kinetics; catalytic oxidation;

D O I：

10.1016/S0043-1354(01)00499-7

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The oxidation by H2O2 of 3,4-dihydroxybenzoic acid (3,4-DHB) in aqueous/goethite slurry at varying operating conditions (catalyst load, temperature, pH, substrate and hydrogen peroxide starting concentration) is investigated. At adopted catalyst loads the observed kinetic developments are consistent with a non-radicalic oxidation mechanism involving the interaction between hydrogen peroxide and 3,4-DHB acid both adsorbed on the active sites of the catalyst. The temperature dependence of rate parameters for the proposed model is also assessed. (C) 2002 Elsevier Science Ltd. All rights reserved.

引用

页码：2761 / 2768

页数：8

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