增溶剂对Pd/ACF电极电还原水相中的2,4,5-PCB脱氯的影响

帅丹蒙; 杨波; 余刚

环境化学

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帅丹蒙, 杨波, 余刚. 增溶剂对Pd/ACF电极电还原水相中的2,4,5-PCB脱氯的影响[J]. 环境化学, 2007, 26(4): 457-460.

引用本文:

帅丹蒙, 杨波, 余刚. 增溶剂对Pd/ACF电极电还原水相中的2,4,5-PCB脱氯的影响[J]. 环境化学, 2007, 26(4): 457-460.

SHUAI Dan-meng, YANG Bo, YU Gang . THE EFFECTS OF SOLUBILIZERS ON 2,4,5-PCB ELECTROREDUCTIVE DECHLORINATION BY Pd MODIFIED ACF ELECTROD IN AQUEOUS PHASE[J]. Environmental Chemistry, 2007, 26(4): 457-460.

Citation:

SHUAI Dan-meng, YANG Bo, YU Gang . THE EFFECTS OF SOLUBILIZERS ON 2,4,5-PCB ELECTROREDUCTIVE DECHLORINATION BY Pd MODIFIED ACF ELECTROD IN AQUEOUS PHASE[J]. Environmental Chemistry, 2007, 26(4): 457-460.

增溶剂对Pd/ACF电极电还原水相中的2,4,5-PCB脱氯的影响

1.
清华大学环境科学与工程系, 持久性有机污染物研究中心, 北京, 100084
基金项目:
高校博士点专项研究基金(20040003042)资助课题

THE EFFECTS OF SOLUBILIZERS ON 2,4,5-PCB ELECTROREDUCTIVE DECHLORINATION BY Pd MODIFIED ACF ELECTROD IN AQUEOUS PHASE

1.
Department of Environmental Science and Engineering, POPs Research Center, Tsinghua University, Beijing, 100084, China
Fund Project:

摘要: 研究了Pd修饰活性炭毡(ACF)电极在不同增溶剂中(2,4,5-PCB)电催化还原脱氯效果,结果表明,以四烷基铵盐作为增溶剂时,2,4,5-PCB脱氯效率大体随着增溶剂疏水基团的增大而提高.在增溶能力强的阳离子表面活性剂和非离子表面活性剂溶液中,2,4,5-PCB的脱氯效果均较好.羟丙基-β-环糊精(HPCD)无毒无害易降解,且其溶液中2,4,5-PCB反应条件低,脱氯效果好,是较优的增溶剂.
- 多氯联苯 /
- 电还原脱氯 /
- 羟丙基-β-环糊精
Abstract: The research studied the effects of different solubilizers on 2,4,5-PCB electroreductive dechlorination by Pd modified active carbon felt(ACF),and investigated the mechanism of influence on dechlorination effect by cationic surfactants.The results demonstrate that dechlorination efficiency of 2,4,5-PCB rises with the bulk of hydrophobic radicals when using cationic surfactants as solubilizers,which have isometric carbon chains.The dechlorination efficiency is fairly high in the solution with high-solubilization-capacity cationic and nonionic surfactants.Hydropropyl-β-cyclodextrin(HPCD) is nontoxic,innocuous and readily degradable while dechlorination of 2,4,5-PCB is easy and efficacious in its solution;thus HPCD is a preferable solubilizer.
- polychlorinated biphenyls /
- electroreductive dechlorination /
- hydropropyl-β-cyclodextin

[1]

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帅丹蒙, 杨波, 余刚. 增溶剂对Pd/ACF电极电还原水相中的2,4,5-PCB脱氯的影响[J]. 环境化学, 2007, 26(4): 457-460.

引用本文:

帅丹蒙, 杨波, 余刚. 增溶剂对Pd/ACF电极电还原水相中的2,4,5-PCB脱氯的影响[J]. 环境化学, 2007, 26(4): 457-460.

Citation:

增溶剂对Pd/ACF电极电还原水相中的2,4,5-PCB脱氯的影响

1. 清华大学环境科学与工程系, 持久性有机污染物研究中心, 北京, 100084

收稿日期: 2006-07-03

基金项目:

高校博士点专项研究基金(20040003042)资助课题

关键词:

摘要: 研究了Pd修饰活性炭毡(ACF)电极在不同增溶剂中(2,4,5-PCB)电催化还原脱氯效果,结果表明,以四烷基铵盐作为增溶剂时,2,4,5-PCB脱氯效率大体随着增溶剂疏水基团的增大而提高.在增溶能力强的阳离子表面活性剂和非离子表面活性剂溶液中,2,4,5-PCB的脱氯效果均较好.羟丙基-β-环糊精(HPCD)无毒无害易降解,且其溶液中2,4,5-PCB反应条件低,脱氯效果好,是较优的增溶剂.

English Abstract

THE EFFECTS OF SOLUBILIZERS ON 2,4,5-PCB ELECTROREDUCTIVE DECHLORINATION BY Pd MODIFIED ACF ELECTROD IN AQUEOUS PHASE

1. Department of Environmental Science and Engineering, POPs Research Center, Tsinghua University, Beijing, 100084, China

Received Date: 2006-07-03

Fund Project:

Keywords:

Abstract: The research studied the effects of different solubilizers on 2,4,5-PCB electroreductive dechlorination by Pd modified active carbon felt(ACF),and investigated the mechanism of influence on dechlorination effect by cationic surfactants.The results demonstrate that dechlorination efficiency of 2,4,5-PCB rises with the bulk of hydrophobic radicals when using cationic surfactants as solubilizers,which have isometric carbon chains.The dechlorination efficiency is fairly high in the solution with high-solubilization-capacity cationic and nonionic surfactants.Hydropropyl-β-cyclodextrin(HPCD) is nontoxic,innocuous and readily degradable while dechlorination of 2,4,5-PCB is easy and efficacious in its solution;thus HPCD is a preferable solubilizer.

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增溶剂对Pd/ACF电极电还原水相中的2,4,5-PCB脱氯的影响

THE EFFECTS OF SOLUBILIZERS ON 2,4,5-PCB ELECTROREDUCTIVE DECHLORINATION BY Pd MODIFIED ACF ELECTROD IN AQUEOUS PHASE

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增溶剂对Pd/ACF电极电还原水相中的2,4,5-PCB脱氯的影响

English Abstract

THE EFFECTS OF SOLUBILIZERS ON 2,4,5-PCB ELECTROREDUCTIVE DECHLORINATION BY Pd MODIFIED ACF ELECTROD IN AQUEOUS PHASE

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