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

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.

关键词： layered double hydroxide cr(Ⅵ) thermodynamic kinetic adsorption

作者: PENG Shuchuan WANG Xiaoshan MA Minghai JIANG Shaotong

作者单位: School of Resources and Environment,Hefei University of Technology,Hefei 230009,China

会议类型: 国际会议

会议名称: The 2nd International Conference on Asian-European Environmental Technology and Knowledge Transfer(第二届亚欧环境技术及知识转化国际研讨会)

会议地点: 合肥

会议语种:英文

页码: 328-331

在线出版日期: 2008-06-05（万方平台首次上网日期，不代表论文的发表时间）