Vermiculite as an exchanger for copper(II) and Cr(III) ions, kinetic studies

被引：29

作者：

Badawy, N. A. ^{[1
]}

El-Bayaa, A. A. ^{[1
]}

Abd AlKhalik, E. ^{[1
]}

机构：

[1] Al Azhar Univ Girls, Fac Sci, Dept Chem, Nasr City, Cairo, Egypt

来源：

IONICS | 2010年 / 16卷 / 08期

关键词：

Adsorption; Vermiculite; Heavy metals; Kinetic; Pure clay mineral; AQUEOUS-SOLUTION; HEAVY-METALS; WASTE-WATER; ADSORPTION-KINETICS; REMOVAL; SORPTION; LEAD(II); EQUILIBRIUM; CADMIUM(II); KAOLINITE;

D O I：

10.1007/s11581-010-0456-8

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The adsorption of CLOD and Cr(III) ions by pure clay mineral, vermiculite, was examined in aqueous solution with respect to the adsorbent dose, initial metal ion concentration, pH, and contact time. The studies showed that vermiculite can be used as an adsorbent material for the moderate removal of Cr(III) and Cu(II) from aqueous solutions. Lagergren first-order, pseudo-second-order, and intraparticle diffusion models were used to describe the kinetic data. The kinetics of adsorption indicates that the process fitted well the intraparticle diffusion model.

引用

页码：733 / 739

页数：7

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