Catalytic dechlorination of chlorinated methanes by nanoscale Pd/Fe bimetallic particles
WANG Xiang-yu, Liu HuiLing
School of Municipal and Environmental Engineering, State Key Laboratory of Urban Water Resources and Environment, Harbin Institute of Technology, Harbin 150090, China
Abstract:
This paper examined the potential of using laboratory-synthesized nanoscale Pd/Fe bimetallic particles to dechlorinate chlorinated methanes, including dichloromethane (DCM), trichloromethane (CF) and tetrachloromethane (CT). Nanoscale Pd/Fe bimetallic particles were characterized in terms of surface area, morphology, size and structure. The parameters affecting the dechlorination efficiency were studied through batch experiments. Effects of Pd content, Pd/Fe addition, and the initial pH value of reaction system on the dechlorination efficiency of chlorinated methanes were determined systematically. Results show that nanoscale Pd/Fe bimetallic particles play a prominent role in the dechlorination of chlorinated methanes. The change of pH value and ferrous ion concentration during dechlorination reaction were also investigated in this study. It is found that the dechlorination efficiency of chlorinated methanes is in the order of CT> CF> DCM.
Key words: nanoscale Pd/Fe bimetallic particles chlorinated methane dechlorination
DOI：10.11916/j.issn.1005-9113.2010.01.005
Clc Number:X703.1
Fund:
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Catalytic dechlorination of chlorinated methanes by nanoscale Pd/Fe bimetallic particles
本站小编 哈尔滨工业大学/2019-10-23
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