Thermodynamic and Kinetic Investigations of Cr (VI) Adsorption on Layered Double Hydroxides

被引：0
|
作者：
Peng Shuchuan [1 ]
Wang Xiaoshan [1 ]
Ma Minghai [1 ]
Jiang Shaotong [1 ]
机构：
[1] Hefei Univ Technol, Sch Resources & Environm, Hefei 230009, Peoples R China
来源：
PROCEEDINGS OF THE 2ND INTERNATIONAL CONFERENCE ON ASIAN-EUROPEAN ENVIRONMENTAL TECHNOLOGY AND KNOWLEDGE TRANSFER | 2008年
关键词：
layered double hydroxide; cr (VI); thermodynamic; kinetic; adsorption;
D O I：
暂无
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Adsorption thermodynamics and kinetics of Cr (VI) adsorption onto layered double hydroxides (LDH) were studied. The results indicated that the adsorption of Cr (VI) onto LDH was a spontaneous exothermic process and has Freundlich-type adsorption isotherms. Furthermore, the adsorption was an entropy-decreasing process and in good agreement with the Pseudo-second-order kinetics model. Film diffusion appeared to be the rate determining step.
引用
收藏
页码：328 / 331
页数：4
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