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

doi:10.1016/j.cej.2011.03.047

CORC > 北京大学 > 化学与分子工程学院

	Removal of hazardous metal ions from wastewater by radiation synthesized silica-graft-dimethylaminoethyl methacrylate adsorbent
	Zhao, Long ; Sun, Jian ; Zhao, Yinghui ; Xu, Ling ; Zhai, Maolin
刊名	chemical engineering journal
	2011
关键词	Silanized silica Radiation grafting Dimethylaminoethyl methacrylate Adsorption Hazardous metal ions SOLID-PHASE EXTRACTION CR(VI) ADSORPTION GEL POLYMERIZATION PRECONCENTRATION EQUILIBRIUM MONOMERS SURFACE PB(II) NI(II)
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.; Engineering, Environmental; Engineering, Chemical; SCI(E); EI; 15; ARTICLE; 1; 162-169; 170
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/154748]
专题	化学与分子工程学院工学院
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.
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.
MLA	Zhao, Long,et al."Removal of hazardous metal ions from wastewater by radiation synthesized silica-graft-dimethylaminoethyl methacrylate adsorbent".chemical engineering journal (2011).