The influence of ion effects on the Pd-catalyzed hydrodechlorination of 4-chlorophenol in aqueous solutions

被引:26
|
作者
Xia, Chuanhai [1 ]
Liu, Ying [1 ]
Zhou, Shiwei [1 ]
Yang, Cuiyun [1 ]
Liu, Sujing [1 ]
Guo, Shuzheng [1 ,3 ]
Liu, Qi [1 ,3 ]
Yu, Junbao [1 ]
Chen, Jiping [2 ]
机构
[1] CAS, Yantai Inst Coastal Zone Res Sustainable Dev, Yantai 264003, Peoples R China
[2] CAS, Dalian Inst Chem Phys, Dalian 116021, Peoples R China
[3] Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
关键词
Catalytic hydrodechlorination; Palladium/carbon; 4-Chlorophenol; Ion effects; Aqueous solution; LIQUID-PHASE HYDRODECHLORINATION; PALLADIUM-SUPPORTED CATALYSTS; MILD CONDITIONS; FLY-ASH; HYDRODEHALOGENATION; CHLOROBENZENE; WATER; HYDROGEN; DECHLORINATION; DETOXIFICATION;
D O I
10.1016/j.catcom.2009.03.018
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
The aim of this work was to study the influence of ions on the hydrodechlorination of 4-chlorophenol in water over 5% Pd/C catalyst. It was found that the presence of some ions such as Na(+), K(+), NH(4)(+), Ca(2)(+), Mg(2)(+), Cl , Br ,CO(3)(2-), HCO(3)(-), SO(4)(2-) and NO(3)(-) etc., did not show negative effects on catalyst activity in the hydrogenation process of 4-chlorophenol in aqueous solutions. But, when Fe(2+), Fe(3+), Cu(2+), Zn(2+), Ni(2+) and Pb(2+) etc., were present in water, they could reduce the activity of Pd/C and even led Pd/C to deactivate. (C) 2009 Elsevier B.V. All rights reserved.
引用
收藏
页码:1443 / 1445
页数:3
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