球形壳聚糖及壳聚糖希夫碱对Ni^(2+)、Co^(2+)吸附的动力学研究  

Kinetics of adsorbing Ni^(2+)、Co^(2+) by chitosan and its derivatives

作　　者：张翠荣[1] 

机构地区：[1]仲恺农业技术学院化学化工系,广州510225

出　　处：《中国调味品》2008年第7期47-49,53,共4页China Condiment

摘　　要：利用电导实验技术,研究多孔壳聚糖(CTS)、多孔壳聚糖希夫碱(RS-CTS)对金属离子Ni2+、Co2+吸附的动力学特征,结果表明该吸附是以化学吸附为主要特性的单分子层吸附,通过计算不同情况下的吸附速率常数,初步分析其吸附机理。The kinetic characteristics of adsorbing Ni^2＋ and Co^2＋ by chitosan（CTS）and modifled chitosan （RS-CTS）were studied by conductometric method. The study showed that the adsorption was a chemical one with single molecular layer as main characteristics. In the study, the adsorption rate constant under different conditions was derived through calculation, and adsorption mechanism was analyzed preliminarily.

关 键 词：壳聚糖 电导法 吸附 金属离子 

分 类 号：TS201.2[轻工技术与工程—食品科学]