Catalytic ozonation of azo dye active brilliant red X-3B in water with natural mineral brucite

被引：103

作者：

Dong, Yuming

He, Kun

Zhao, Bo

Yin, Ying

Yin, Lin

Zhang, Aimin ^{[1
]}

机构：

[1] Nanjing Univ, Sch Chem & Chem Engn, Minist Educ, Key Lab Mesoscop Chem, Nanjing 210093, Peoples R China

[2] Nanjing Univ, Dept Earth Sci, Nanjing 210093, Peoples R China

来源：

CATALYSIS COMMUNICATIONS | 2007年 / 8卷 / 11期

基金：

中国国家自然科学基金;

关键词：

azo dye; catalytic ozonation; Brucite; natural mineral;

D O I：

10.1016/j.catcom.2007.01.016

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：

Natural mineral brucite was used directly in catalytic ozonation of dye wastewater of active brilliant red X-3B. Compared with single ozonation, degradation of X-3B increased from 47% to 89%, and removal rate of COD increased from 9% to 32.5% in catalytic ozonation for 15 min. The catalytic ozonation of X-3B followed a direct oxidization mechanism by ozone molecule, and this was actually a homogeneous catalysis of OH- due to dissolution of Mg(OH)(2) from natural brucite. As a natural mineral catalyst, brucite has supplied an economical and feasible choice for catalytic ozonation of X-3B in industrial wastewater. (c) 2007 Elsevier B.V. All rights reserved.

引用

页码：1599 / 1603

页数：5