Template synthesis and adsorption properties of chitosan salicylal Schiff bases^①

来源期刊：中南大学学报(英文版)2004年第2期

论文作者：曹佐英 魏琦峰 张启修

文章页码：169 - 172

Key words：microwave irradiation; template synthesis; chelating resin; adsorption property

Abstract: To improve the adsorption properties of chemically modified chitosan, the chelating resin of salicylal chitosan Schiff bases was prepared by the template cross-linking method using Cu(Ⅱ) as template ion and ethylene glycol bisgly-cidyl ether as cross-linking agent in microwave, and was characterized by IR. The adsorption capacity and selectivity coef-ficient of the chemically modified chitosan for Cu(Ⅱ), Fe(Ⅲ) and Zn(Ⅱ) were investigated, respectively. The results show that the adsorption capacity of the resin 2.73 mmol/g for Cu(Ⅱ) is bigger than that for other two metal ions, 0.22mmol/g for Fe(Ⅲ), and 0.42 mmol/g for Zn(Ⅱ), and the selectivity coefficients are as follows:KCu(Ⅱ)/Fe(Ⅲ)=12.4,KCu(Ⅱ)/Zn(Ⅱ)=6.5.