Adsorption properties and mechanism of cross-linked carboxymethyl-chitosan resin with Zn(II) as template ion

CORC > 兰州化学物理研究所 > 中国科学院兰州化学物理研究所 > 环境材料与生态化学研究发展中心

	Adsorption properties and mechanism of cross-linked carboxymethyl-chitosan resin with Zn(II) as template ion
	Wang AQ(王爱勤)
刊名	Reactive and Functional Polymers
	2006
卷号	66 页码:819-826
关键词	Adsorption Mechanism Cross-linked Carboxymethyl-chitosan Zn(II) Resin
ISSN号	1381-5148
通讯作者	王爱勤 aqwang@licp.cas.cn
中文摘要	The influence factors of the pH value, the degree of substitution (DS) of carboxymethyl-chitosan (CMC) and the dosage of cross-linking agent on the adsorption for Zn(II) ion were investigated, and then the cross-linked CMC resin with Zn(II) as templateion was synthesized at the optimum adsorption conditions for Zn(II) ions. The adsorptionproperties and selectivity for Cu(II), Co(II), Ni(II), Zn(II), Cd(II), and Hg(II) ion were discussed. The results showed that the adsorption capacities of the resin for above metal ions are lower than those of CMC, but the selectivity for Zn(II) was greatly increased. The adsorptionmechanisms of CMC and the resin for zinc sulfate have also been investigated by means of X-ray photoelectron spectroscopy (XPS), IR spectra and SEM. The XPS and FT-IR spectra reveal that CMC and the resin coordinated with Zn(II) mainly through oxygen atom in the –CH2COO– and –OH groups, and nitrogen atom in the –NH2 group of the polymer chain. The SEM results show that the Zn(II) distribute on the surface of the resin–Zn(II) complex uniformly, while distribute on the surface of CMC–Zn(II) complex in the bulk.
学科主题	胶体与界面
收录类别	SCI
语种	英语
WOS记录号	WOS:000239883600003
公开日期	2012-09-02
内容类型	期刊论文
源URL	[http://210.77.64.217/handle/362003/233]
专题	兰州化学物理研究所_环境材料与生态化学研究发展中心
推荐引用方式 GB/T 7714	Wang AQ. Adsorption properties and mechanism of cross-linked carboxymethyl-chitosan resin with Zn(II) as template ion[J]. Reactive and Functional Polymers,2006,66:819-826.
APA	王爱勤.(2006).Adsorption properties and mechanism of cross-linked carboxymethyl-chitosan resin with Zn(II) as template ion.Reactive and Functional Polymers,66,819-826.
MLA	王爱勤."Adsorption properties and mechanism of cross-linked carboxymethyl-chitosan resin with Zn(II) as template ion".Reactive and Functional Polymers 66(2006):819-826.