地质学报(英文版)2006,Vol.80Issue(2):219-225,7.
Heavy Metal Removal from Water by Adsorption Using Pillared Montmorillonite
Heavy Metal Removal from Water by Adsorption Using Pillared Montmorillonite
摘要
Abstract
Removal of Cu2+, Cr3+ and Cd2+ from aqueous solutions by adsorption on montmorillonite modified by sodium dodecylsulfate (SDS) and hydroxy-alumino-silicate (HAS) was investigated.Experiments were carried out as a function of solution pH, solute concentration, and time. The Langmuir model was adopted to describe the single-solute adsorption isotherm, in which the Langmuir parameters were directly taken from those obtained in single-solute systems. The kinetics of metal ions adsorption was examined and the pseudo-first-order rate constant was finally evaluated.关键词
sodium dodecylsulfate/hydroxyaluminosilicate/montmorillonite/metal ions adsorption/Langmuir model/kineticsKey words
sodium dodecylsulfate/hydroxyaluminosilicate/montmorillonite/metal ions adsorption/Langmuir model/kinetics分类
天文与地球科学引用本文复制引用
LIU Yun,WU Pingxiao,DANG Zhi,YE Daiqi..Heavy Metal Removal from Water by Adsorption Using Pillared Montmorillonite[J].地质学报(英文版),2006,80(2):219-225,7.基金项目
We are most grateful to the National Natural Science Foundation of China (Grant Nos. 40202007, 40573064),the Natural Science Foundation of Guangdong Province (Grant No. 04020017), and the Student Research Program (SRP) of South China University of Technology for financial support. (Grant Nos. 40202007, 40573064)