Enhanced catalytic degradation process of o-nitrochlorobenzene by palladium-catalyzed Fe^0 particles

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

作者机构：Department of Environmental Engineering Zhejiang University Hangzhou 310027 China College of Biological and Environmental Engineering Zhejiang University of Technology Hangzhou 310032 China 

出 版 物：《Journal of Environmental Sciences》 (环境科学学报（英文版）)

年 卷 期：2005年第17卷第5期

页      面：849-852页

核心收录：

学科分类：083002[工学-环境工程] 0830[工学-环境科学与工程（可授工学、理学、农学学位）] 08[工学] 

基　　金：The National Natural Science Foundation of China( No. 20407015) and the Science and Technology Project of Zhejiang Province of China( No.2004C34006) 

主　　题：palladium-catalyzed Fe^0 amination dechlornation o-NCB 

摘      要：Over Pd/Fe bimetallic catalyst, o-nitrochlorobenzene（o-NCB）, at a concentration of 20 mg/L in aqueous solutions, is rapidly converted to o-chloroaniline（o-CAN） first, and then quickly dechlorinated to aniline（AN） and Cl^- , without other intermediate reaction products. The aminated and dechlorinated reactions are believed to take place on the surface site of the Pd/Fe. The o-NCB removal efficiency and the next dechlorination rate increase with an increase of bulk loading of palladium and catalysts addition due to the increase of both the surface loading of palladium and the total surface area. These results indicate that reduction, amination and dechlorination of o- NCB by palladium-catalyzed Fe^0 particles, can be designed for remediation of contaminated groundwater.