Removal of hazardous metal ions from wastewater by radiation synthesized silica-graft-dimethylaminoethyl methacrylate adsorbent

doi:10.1016/j.cej.2011.03.047

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	Removal of hazardous metal ions from wastewater by radiation synthesized silica-graft-dimethylaminoethyl methacrylate adsorbent
	Zhao, Long 1; Sun, Jian 1,2; Zhao, Yinghui 1; Xu, Ling 1; Zhai, Maolin 3
刊名	CHEMICAL ENGINEERING JOURNAL
	2011-05-15
卷号	170 期号:1 页码:162-169
关键词	Silanized Silica Radiation Grafting Dimethylaminoethyl Methacrylate Adsorption Hazardous Metal Ions
ISSN号	1385-8947
DOI	10.1016/j.cej.2011.03.047
英文摘要	Silica-based adsorbent was prepared by radiation-induced grafting of dimethylaminoethyl methacrylate (DMAEMA) onto silanized silica (SS). The SS was pre-irradiated by electron beam (EB) and then reacted with DMAEMA solution at various conditions. The FTIR and TG-DTA spectra manifested that DMAEMA was successfully grafted onto the SS surface. Three kinds of typical hazardous metal ions (Cr (VI), As (V) and Hg (II)) were used to evaluate the adsorption properties of the resultant silica-based adsorbent. The adsorbent possessed sound Cr (VI) and As (V) adsorption ability as anion ion-exchange resin, and a particular selective adsorption for Hg (II) ions was found among other divalent cationic metal ions. The adsorptions of Cr (VI), As (V) and Hg (II) fitted with Langmuir mode, and their adsorption kinetics fitted well with pseudo-second-order model. These results suggested that SS-g-DMAEMA adsorbent has potential application for the removal of hazardous metal pollutants from wastewater. (C) 2011 Elsevier B.V. All rights reserved.
语种	英语
出版者	ELSEVIER SCIENCE SA
WOS记录号	WOS:000291454600021
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/71443]
专题	中国科学院化学研究所
通讯作者	Xu, Ling
作者单位	1.Peking Univ, Beijing Key Lab Solid Waste Utilizat & Management, Dept Energy & Resources Engn, Coll Engn, Beijing 100871, Peoples R China 2.State Key Lab Solid Waste Reuse Bldg Mat, Beijing 100041, Peoples R China 3.Peking Univ, Coll Chem & Mol Engn, Dept Appl Chem, Beijing Natl Lab Mol Sci, Beijing 100871, Peoples R China
推荐引用方式 GB/T 7714	Zhao, Long,Sun, Jian,Zhao, Yinghui,et al. Removal of hazardous metal ions from wastewater by radiation synthesized silica-graft-dimethylaminoethyl methacrylate adsorbent[J]. CHEMICAL ENGINEERING JOURNAL,2011,170(1):162-169.
APA	Zhao, Long,Sun, Jian,Zhao, Yinghui,Xu, Ling,&Zhai, Maolin.(2011).Removal of hazardous metal ions from wastewater by radiation synthesized silica-graft-dimethylaminoethyl methacrylate adsorbent.CHEMICAL ENGINEERING JOURNAL,170(1),162-169.
MLA	Zhao, Long,et al."Removal of hazardous metal ions from wastewater by radiation synthesized silica-graft-dimethylaminoethyl methacrylate adsorbent".CHEMICAL ENGINEERING JOURNAL 170.1(2011):162-169.