The activity and selectivity of catalytic peroxide oxidation of chlorophenols over Cu-Al hydrotalcite/clay composite

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	The activity and selectivity of catalytic peroxide oxidation of chlorophenols over Cu-Al hydrotalcite/clay composite
	Zhou, Shiwei 1; Gu, Chuantao 2; Qian, Zhenying 1; Xu, Jinguang 2; Xia, Chuanhai1
刊名	JOURNAL OF COLLOID AND INTERFACE SCIENCE
	2011-05-15
卷号	357 期号:2 页码:447-452
关键词	Catalytic Wet Peroxide Oxidation (Cwpo) Selective Oxidation Copper-based Catalyst Hydrotalcite/clay Composite Chlorophenol (Cp)
ISSN号	0021-9797
通讯作者	Xia, CH, Chinese Acad Sci, Yantai Inst Coastal Zone Res, Yantai 264003, Peoples R China.chxia@yic.ac.cn
产权排序	[Zhou, Shiwei; Qian, Zhenying; Xia, Chuanhai] Chinese Acad Sci, Yantai Inst Coastal Zone Res, Yantai 264003, Peoples R China; [Gu, Chuantao; Xu, Jinguang] Yantai Univ, Chem & Biol Coll, Yantai 264005, Peoples R China
文献子类	Article
英文摘要	Liquid phase catalytic oxidation of chlorophenols (CPs) was carried out over Cu-Al hydrotalcite/clay composite at ambient temperature and pressure using hydrogen peroxide as oxidant. The results showed that the catalyst had high catalytic activity, with complete oxidation of 4-CP within 40 min at 40 degrees C. The content and position of chlorine on the aromatic ring had significantly different effects on the oxidation rate of CPs, with the rate sequence of phenol > monochlorophenol (MCP) > dichlorophenol (DCP) > trichlorophenol (TCP), 3-CP > 2-CP > 4-CP. and 3,5-DCP > 3,4-DCP > 2,5-DCP > 2,4-DCP > 2,6-DCP. This was ascribed to the interactions among sigma-electron withdrawing conductive effect, pi-electron donating conjugative effect, and steric hindrance effect of chlorine. It was evidenced that the catalytic peroxide oxidation of CPs in the first step was selective and rate-limiting, where chlorinated 1,4-benzoquinones formed. (C) 2011 Elsevier Inc. All rights reserved.; Liquid phase catalytic oxidation of chlorophenols (CPs) was carried out over Cu-Al hydrotalcite/clay composite at ambient temperature and pressure using hydrogen peroxide as oxidant. The results showed that the catalyst had high catalytic activity, with complete oxidation of 4-CP within 40 min at 40 degrees C. The content and position of chlorine on the aromatic ring had significantly different effects on the oxidation rate of CPs, with the rate sequence of phenol > monochlorophenol (MCP) > dichlorophenol (DCP) > trichlorophenol (TCP), 3-CP > 2-CP > 4-CP. and 3,5-DCP > 3,4-DCP > 2,5-DCP > 2,4-DCP > 2,6-DCP. This was ascribed to the interactions among sigma-electron withdrawing conductive effect, pi-electron donating conjugative effect, and steric hindrance effect of chlorine. It was evidenced that the catalytic peroxide oxidation of CPs in the first step was selective and rate-limiting, where chlorinated 1,4-benzoquinones formed. (C) 2011 Elsevier Inc. All rights reserved.
学科主题	Chemistry, Physical
WOS关键词	FE PILLARED CLAYS ; HYDROGEN-PEROXIDE ; CHLORINATED PHENOLS ; HYDROXYL RADICALS ; WASTE-WATER ; HALOGENATED QUINONES ; FENTONS REAGENT ; WET OXIDATION ; DEGRADATION ; KINETICS
WOS研究方向	Chemistry
语种	英语
WOS记录号	WOS:000289179500026
资助机构	Chinese Academy of Sciences [kzcx2 yw 223, KZCX2 YW 309]; Science and Technology Development Program Project of Shandong Province [2008GG20005006, 2008GG3NS07005]; CAS/SAFEA
公开日期	2011-07-22
内容类型	期刊论文
源URL	[http://ir.yic.ac.cn/handle/133337/4882]
专题	烟台海岸带研究所_海岸带生物学与生物资源利用所重点实验室
作者单位	1.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Yantai 264003, Peoples R China 2.Yantai Univ, Chem & Biol Coll, Yantai 264005, Peoples R China
推荐引用方式 GB/T 7714	Zhou, Shiwei,Gu, Chuantao,Qian, Zhenying,et al. The activity and selectivity of catalytic peroxide oxidation of chlorophenols over Cu-Al hydrotalcite/clay composite[J]. JOURNAL OF COLLOID AND INTERFACE SCIENCE,2011,357(2):447-452.
APA	Zhou, Shiwei,Gu, Chuantao,Qian, Zhenying,Xu, Jinguang,&Xia, Chuanhai.(2011).The activity and selectivity of catalytic peroxide oxidation of chlorophenols over Cu-Al hydrotalcite/clay composite.JOURNAL OF COLLOID AND INTERFACE SCIENCE,357(2),447-452.
MLA	Zhou, Shiwei,et al."The activity and selectivity of catalytic peroxide oxidation of chlorophenols over Cu-Al hydrotalcite/clay composite".JOURNAL OF COLLOID AND INTERFACE SCIENCE 357.2(2011):447-452.