摘要
以甲醛、环氧氯丙烷为交联剂,合成了交联壳聚糖.研究了交联壳聚糖对Cu2+、Zn2+、Cr3+的吸附性能,考察了pH值、用量及金属离子初始浓度对交联壳聚糖吸附性能的影响.结果表明,交联壳聚糖对Cu2+、Zn2+、Cr3+具有较好的吸附效果,交联壳聚糖对金属离子的吸附率可达到90%以上.
The cross-linked chitosan was prepared by formaldehyde and epichlorohydrin. The adsorption of cross-linked chitosan towards Cu^2＋ , Zn^2＋ , Cr^3 ＋ was studied. The effects of pH, dosage and. initial concentration of metal ion on the adsorption characteristics of cross-linked chitosan were studied. The results show that the cross-linked chitosan was an effective treating-reagent of removing metal ion in wastewater. The highest removal rate of metal ion was above 90%.
出处
《吉林化工学院学报》
CAS
2007年第4期34-36,共3页
Journal of Jilin Institute of Chemical Technology
关键词
交联壳聚糖
吸附
金属离子
cross-linked chitosan
adsorption
metal ion
