中国非金属矿工业导刊Issue(1)：24-26,32,4.
改性膨润土吸附剂的制备及其吸附性能的研究
Preparation of Chitosan Modified Bentonite Adsorbent and Study of Its Adsorption Properties
摘要
Abstract
In this paper, with the Na-base bentonite as raw material and chitosan as modifier, through microwave radiation, a new adsorbent which was made from bentonite modified by chitosan was prepared; and its adsorption to Cr(VI) and appropriate conditions for the Cr(VI)adsorption were discussed. The results showed that appropriate conditions for the Cr(VI)adsorption process are that the pH value is 5-6, the adsorption contact time is about 30min, the dosage of the adsorbent is 12.0g/L. Compared with the single bentonite or chitosan, the modified bentonite adsorbent has a faster adsorption speed and better adsorption, moreover,it has the advantages of low costs, broad application scope, Cr(VI) removal rate can reach 85%.关键词
膨润七/壳聚糖/微波改性/吸附剂/铬离子Key words
bentonite/ chitosan/ microwave modification/ adsorbent/ chromium ion(VI)/分类
资源环境引用本文复制引用
刘长风,邵红,赵阳..改性膨润土吸附剂的制备及其吸附性能的研究[J].中国非金属矿工业导刊,2012,(1):24-26,32,4.基金项目
辽宁省自然科学基金(20061005)资助. （20061005）
