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Catalytic dechlorination of chlorobenzene in water by Pd/Fe bimetallic system
Hong-Yi Zhou1, Xin-Hua Xu, Da-Hui Wang
1Department of Environmental Engineering, Zhejiang University, Hangzhou 310027, China. hongyizhou@yeah.net
Abstract:
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 x 10(-3) L/(m2 x h)). The reduction product for MCB was benzene.
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