Catalytic dechlorination of chlorobenzene in water by Pd/Fe bimetallic system  

作　　者：ZHOU Hong yi XU Xin hua WANG Da hui 

机构地区：[1]Department of Environmental Engineering,Zhejiang University,Hangzhou 310027,China. [2]College of Biological&Environmental Engineering,Zhejiang University of Technology,Hangzhou 310032,China

出　　处：《Journal of Environmental Sciences》2003年第5期647-651,共5页环境科学学报(英文版)

基　　金：TheReturneeFoundationofMinistryofEducationP .R .C

摘　　要：Catalytic reductive dechlorination of monochlorobenzene(MCB) was carried out in the palladium/iron system. With low Pd loading(0 005%), 45% dechlorination efficiency was achieved within 5 h. Pd as catalyst accelerated the reductive dechlorination reaction. Dechlorination mechanism and kinetics were discussed. The reaction took place on the bimetal surface in a pseudo first order reaction, with the rate constant being 0 0071 min -1 ( K SA =8 0×10 -3 L/(m 2·h). The reduction product for MCB was benzene.Catalytic reductive dechlorination of monochlorobenzene(MCB) was carried out in the palladium/iron system. With low Pd loading(0.005%), 45% dechlorination efficiency was achieved within 5 h. Pd as catalyst accelerated the reductive dechlorination reaction. Dechlorination mechanism and kinetics were discussed. The reaction took place on the bimetal surface in a pseudo first order reaction, with the rate constant being 0 0071 min^(-1)(K_(SA)=8.0×10^(-3)L/(m ^(2)·h). The reduction product for MCB was benzene.

关 键 词：reductive dechlorination CATALYTIC palladium/iron CHLOROBENZENE 

分 类 号：X703[环境科学与工程—环境工程]