摘要
Cr(Ⅵ)是一种对生物和人体高度有毒的重金属离子。改性壳聚糖对Cr(Ⅵ)的吸附是去除含Cr(Ⅵ)废水中Cr(Ⅵ)的一种有效方法。壳聚糖通过分子中的氨基和羟基等功能团与Cr(Ⅵ)离子发生吸附作用。通过改性可以提高壳聚糖的物理稳定性和吸附容量等。综述了壳聚糖的化学和复合改性在吸附Cr(Ⅵ)方面的研究进展。
Cr（Ⅵ） is a highly toxic heavy ion for living things and human body. The adsorption of Cr（ Ⅵ） by modified chitosan is an efficient method for removing of Cr（Ⅵ） in wastewater. Chitosan can be chelated with Cr（Ⅵ） by the active sites which are made by the functional groups such as hydroxyl, amine groups. Modified chitosans have good stability and high adsorption capacity. The recent studies on chemical and composite modification of ehitosan are reviewed mainly on their adsorption abilities for Cr（Ⅵ）.
出处
《材料导报》
EI
CAS
CSCD
北大核心
2013年第13期87-89,93,共4页
Materials Reports
基金
国家自然科学基金(50673027
21077034)
关键词
壳聚糖
改性
Cr(Ⅵ)
吸附
废水处理
chitosan, modification, Cr（Ⅵ）, adsorption, wastewater treatment
