环境工程学报2012，Vol.6Issue(5)：1609-1612,4.
改性多壁碳纳米管对水中Cd~（2＋）的去除
Removal of Cd~（2＋） from water by modified multiwall carbon nanotubers
杨铁金 1马伟光 1刘亚红 1张华 1张艳1
作者信息
- 1. 齐齐哈尔大学化学与化学工程学院,齐齐哈尔161006
- 折叠
摘要
Abstract
In order to increase the adsorption amount of Cd2＋ in water,the multiwall carbon nanotubers were treated by mixed acid,and the result was characterized by IR.The treated MWNTs were used to adsorb the Cd2＋ in simulating water.The effect of adsorption time,pH,the amount of MWNTs,the concentration of Cd2＋ and interfering ion on the adsorption of Cd2＋ were discussed.The results indicated that optimal conditions of Cd2＋ adsorption on treated MWNTs were time of 1.5 h and pH of 5.3.The amount of Cd2＋ adsorption increased with increase of the amount of MWNTs,and effect of adsorption was depressed by existence of cation,the adsorption data fit the langmiur model and its linearized form well.Results of a desorption study showed that Cd2＋ adsorbed onto MWCNTs could be easily desorbed at pH 2.The mechanism of Cd2＋ adsorption was also discussed.关键词
多壁碳纳米管/吸附/解吸/Cd2＋/水处理Key words
muiltiwall carbon nanotubers/adsorption/desorption/Cd2+ ions/water treatment分类
资源环境引用本文复制引用
杨铁金,马伟光,刘亚红,张华,张艳..改性多壁碳纳米管对水中Cd~（2＋）的去除[J].环境工程学报,2012,6(5):1609-1612,4.
