Spectrometry recognition of polyethyleneimine towards heavy metal ions

doi:10.1016/j.colsurfa.2014.02.032

CORC > 北京大学 > 环境科学与工程学院

	Spectrometry recognition of polyethyleneimine towards heavy metal ions
	Jia, Jin ; Wu, Aihua ; Luan, Shengji
刊名	colloids and surfaces a physicochemical and engineering aspects
	2014
关键词	Polyethyleneimine Spectrometry recognition UV-vis spectrophotometry Coordination reaction Heavy metal ions SHELL ACTIVATED CARBON CHELATING RESIN AQUEOUS-SOLUTION WASTE-WATER COBALT(II) IONS EXCHANGE RESIN REMOVAL ADSORPTION CU(II) COPPER(II)
DOI	10.1016/j.colsurfa.2014.02.032
英文摘要	Branched Polyethyleneimine (PEI) is biocompatible material and has strong adsorption towards heavy metal ions for abundant amount of primary, secondary and tertiary amine. Spectral response of PEI towards different heavy metal ions was investigated in aqueous solution by UV-vis spectrophotometry. It was found that Cu2+, Co2+ and Cr3+ could be selectively recognized by PEI in terms of blue shift of characteristic absorption peak and changes of absorbance. Static coordination process and coordination dynamics between PEI and Cu2+, Co2+, Cr3+ were systematically investigated. Parameters including stoichiometric ratio, coordination equilibrium constant, isothermal adsorption equation, reaction kinetic equation, activation energy, reaction entropy and reaction enthalpy were calculated and discussed. The maximum adsorption capacity of Cu2+, Co2+ and Cr3+ at room temperature (298 K) was 234.25 mg/g, 184.98 mg/g and 52.08 mg/g, respectively, indicating that PEI has strong application in spectrometry recognition and adsorption of Cu2+,Co2+ and Cr3+ heavy metal ions. (C) 2014 Elsevier B.V. All rights reserved.; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000335202400001&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; Chemistry, Physical; SCI(E); EI; 6; ARTICLE; phenix_wah@aliyun.com; 1; 1-7; 449
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/158262]
专题	环境科学与工程学院
推荐引用方式 GB/T 7714	Jia, Jin,Wu, Aihua,Luan, Shengji. Spectrometry recognition of polyethyleneimine towards heavy metal ions[J]. colloids and surfaces a physicochemical and engineering aspects,2014.
APA	Jia, Jin,Wu, Aihua,&Luan, Shengji.(2014).Spectrometry recognition of polyethyleneimine towards heavy metal ions.colloids and surfaces a physicochemical and engineering aspects.
MLA	Jia, Jin,et al."Spectrometry recognition of polyethyleneimine towards heavy metal ions".colloids and surfaces a physicochemical and engineering aspects (2014).