摘要
通过测定Cu2+和Zn2+溶液中的电导率的变化,研究壳聚糖(CTS)、壳聚糖-海藻酸钠共聚物(CTS-AGS)对Cu2+和Zn2+的吸附动力学特征,结果表明该吸附是以化学吸附为主要特征的单分子层吸附,通过计算不同情况下吸附速率常数,以及对吸附前后的扫描电镜分析,初步探讨其吸附机理。
Kinetic characteristics of adsorbing Cu^2＋ and Zn^2＋ by chitosan （CTS） and chitosan/sodium alginate copolymer （CTS-AGS） were studied by electric conductivity. Results showed that the adsorption was chemical process with single molecular layer as main characteristics. Through calculation of adsorption rate constant under different conditions and analysis of SEM different before adsorption and after adsorption, the adsorption mechanism was discussed.
出处
《环境科学与技术》
CAS
CSCD
北大核心
2008年第1期33-35,44,共4页
Environmental Science & Technology
基金
广东省科技计划项目(2006B36530002)
关键词
壳聚糖
海藻酸钠
共聚物
金属离子
吸附机理
chitosan
sodium alginate
copolymer
metal ion
flocculation mechanism
