N-羧甲基壳聚糖的制备及其对重金属离子吸附研究  

STUDY ON PREPARATION OF N-CARBOXYMETHYL CHITOSAN AND ITS ADSORPTION TO HEAVY METAL IONS

作　　者：宋庆平[1] 王崇侠[1] 高建纲[1] 

机构地区：[1]安徽工程大学生物与化学工程学院,芜湖241000

出　　处：《离子交换与吸附》2010年第6期559-564,共6页Ion Exchange and Adsorption

基　　金：安徽省教育厅自然科学基金重点项目(2003kj008zd)

摘　　要：采用氯乙酸和壳聚糖为原料制备了N-羧甲基壳聚糖,并研究了其对重金属离子Pb2+、Co2+、Ni2+、Cd2+的吸附行为。采用了XRD、FT-IR、1H-NMR对N-羧甲基壳聚糖进行了表征,对N-羧甲基壳聚糖的4种金属离子配合物进行了FT-IR表征。结果表明,N-羧甲基壳聚糖对Pb2+、Co2+、Ni2+、Cd2+的吸附能力优于壳聚糖,分子中羧基是主要的螯合基团。N-carboxyethyl chitosans（N-CMC） was prepared using chitosan and chloroacetic acid as materials and its adsorption properties to Pb2＋、Co2＋、Ni2＋、Cd2＋ were studied.The N-CMC was characterized by XRD,FT-IR and 1H-NMR,and the four kinds of metal complexes of N-CMC were characterized by FT-IR.The results showed that the adsorption capacity of N-CMC to Pb2＋、Co2＋、Ni2＋、Cd2＋ was better than that of chitosan,carboxyl was the mainly chelation group.

关 键 词：壳聚糖 N-羧甲基壳聚糖 吸附 重金属离子 

分 类 号：O652.6[理学—分析化学]