新型多孔多胺化交联壳聚糖对镉(Ⅱ)吸附性能的研究  

Adsorption properties of a novel polyaminated and crosslined chitosan for Cd(Ⅱ)

作　　者：王志华[1] 李青燕[1] 王书俊[1] 

机构地区：[1]北京化工大学可控化学反应科学与技术基础教育部重点实验室,北京100029

出　　处：《北京化工大学学报（自然科学版）》2003年第2期93-96,共4页Journal of Beijing University of Chemical Technology(Natural Science Edition)

基　　金：北京化工大学青年教师基金项目 (QN0 2 11)

摘　　要：设计和制备了一种新型多孔多胺化壳聚糖 (P CCTS) ,用FTIR和X射线衍射法表征了产物的结构 ,研究了P CCTS对镉 (Ⅱ )离子的吸附性能 ,实验结果表明P CCTS对镉 (Ⅱ )离子有很强的吸附能力 ,在 pH为 6左右P CCTS对镉 (Ⅱ )离子的吸附能力最强 ,溶液中适量NaCl的存在能够显著提高P CCTS对镉 (Ⅱ )A novel polyaminated and crosslined chitosan (P CCTS) was prepared by protecting the amino group in chitosan with benzaldehyde and introducing epichlorodydrin and polyethylene polyamine. The structure of P CCTS was determined by FTIR and X ray diffraction. The adsorption properties of P CCTS for Cd(Ⅱ) were studied. The adsorption capacity of P CCTS for Cd(Ⅱ) is much higher than that of chitosan (CTS), and dependant on pH and the concentration of NaCl in solution.

关 键 词：多孔多胺化交联壳聚糖 吸附性能 镉(Ⅱ) 吸附容量 

分 类 号：O647.3[理学—物理化学]