Free radicals formation induced by the ozonation of humic substances in aqueous medium

被引：14

作者：

Guittonneau, S

Thibaudeau, D

Meallier, P

机构：

[1] Lab. de Photochimie Industrielle, LACE, Univ. Claude Bernard, Lyon I, 69622 Villeurbanne

来源：

CATALYSIS TODAY | 1996年 / 29卷 / 1-4期

关键词：

OH radicals formation; ozonation;

D O I：

10.1016/0920-5861(95)00299-5

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

This laboratory study was designed to investigate the mechanism of the formation of the OH radicals during the ozonation of humic substances solutions. The evaluation of the formation of these radical species was performed by using 1,1,2-trichloro ethane (TCA) as a probe. The apparent removal of TCA observed during the ozonation treatment implies the production of secondary species that catalyze the generation of OH radicals from ozone. These species are formed by a reaction between H2O2, formed in-situ, and O-3 and by a radical mechanism involving reactive humic substances sites.

引用

页码：323 / 327

页数：5

共 12 条

[1] A COMPILATION OF SPECIFIC BIMOLECULAR RATE CONSTANTS FOR REACTIONS OF HYDRATED ELECTRONS HYDROGEN ATOMS AND HYDROXYL RADICALS WITH INORGANIC AND ORGANIC COMPOUNDS IN AQUEOUS SOLUTION [J].