环境工程学报2012，Vol.6Issue(9)：3091-3095,5.
改性壳聚糖处理污水中Ni（Ⅱ）的效果
Treatment effect of Ni（ H ） in wastewater by modified chitosan sorbent
摘要
Abstract
Carboxyl DNS was prepared by the reaction between carboxylic anhydride and Nano-SiO2 modified withγ-aminopropyltrimethoxysilane（the dispersible nano-SiO2,DNS）.Then modified chitosan was synthesized by mixed carboxyl DNS particles and chitosan through dehydration to acyl amine.The modified chitosan was characterized with FTIR and SEM.By the experiment,four factors such as pH,adsorption time,initial Ni2＋ concentration and dosage of composite adsorbent on Ni2＋ were investigated.The best adsorption conditions were the pH value of 7,the adsorption time of 2 h,and the adsorbent dosage 0.3 g.Modified chitosan had stronger adsorption ability to Ni2＋ than chitosan,its adsorption rate was 67.01%.关键词
壳聚糖/DNS/改性壳聚糖/Ni2＋/吸附Key words
chitosan/DNS/modified chitosan/Ni2 +/adsorption分类
资源环境引用本文复制引用
张燕,张军丽,潘庆才,闫凤美..改性壳聚糖处理污水中Ni（Ⅱ）的效果[J].环境工程学报,2012,6(9):3091-3095,5.基金项目
河南省科技计划项目 （）
河南省科技发展计划项目 （）
