印染助剂2013，Vol.30Issue(1)：8-12,5.
改性壳聚糖硅杂化膜吸附铜离子性能研究
Adsorption performance of modified chitosan/silica hybrid membrane on copper ions
何雪梅 1滕虎1
作者信息
- 1. 盐城工学院纺织服装学院,江苏盐城224003
- 折叠
摘要
Abstract
Pure chitosan/silica hybrid membrane and carboxymethyl chitosan/silica hybrid membrane were prepared through crosslinking with aminopropyltriethoxysilane (KH550) and chitosan and carbosymethyl chito-san. The two kinds of hybrid membranes were characterized by FT-IR. The swelling properties, influences of copper ions concentration, membranes mass, temperature, pH and time on adsorption of heavy metal copper ions of hybrid membranes were studied. The results showed that new bonds formed in both of the hybrid membranes. Si-O-Si and Si-C were introduced in hybrid membranes and the swelling property of carboxymethyl chitosan/silica hybrid membrane reduced compared with pure chitosan hybrid membrane. Under room temperature, pH=6, 0.05 mol/L of copper ions concentration, 45 min and 90 min of adsorption, respectively, chitosan/silica hybrid membrane and carboxymethyl chitosan/silica hybrid membrane both had good adsorption performance on copper ions, and carboxymethyl chitosan/silica hybrid membrane had better adsorption capacity than chitosan/silica hybrid membrane. The adsorption kinetics research indicated that the adsorption of Cu2+ on hybrid membranes accorded with second kinetics model.关键词
羧甲基壳聚糖/杂化膜/吸附/铜离子Key words
carboxymethyl chitosan/ hybrid membranes/ adsorption/ copper ions分类
化学化工引用本文复制引用
何雪梅,滕虎..改性壳聚糖硅杂化膜吸附铜离子性能研究[J].印染助剂,2013,30(1):8-12,5.
