Adsorption of erbium ions on activated charcoal from aqueous solutions

被引：16

作者：

Qadeer, R ^{[1
]}

机构：

[1] Pakistan Atom Energy Commiss, Islamabad, Pakistan

来源：

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS | 2005年 / 254卷 / 1-3期

关键词：

activated charcoal; adsorptiom; erbium ions; aqueous solution; selectivity;

D O I：

10.1016/j.colsurfa.2004.11.007

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：

Adsorption of erbium ions onto activated charcoal from aqueous solution has been investigated. Conditions leading to maximum adsorption have been established in terms of shaking time, pH, erbium ions concentration and temperature. The adsorption of erbium ions obeys the Langmuir isothermal equation well in the concentration range studied. Thermodynamic quantities DeltaH, DeltaS and DeltaG were calculated for the adsorption process. The results indicate that the adsorption of erbium ions on activated charcoal is endothermic in nature. The effect of different anions and cations on the adsorption of erbium ions has also been examined. The adsorption of other metal ions on activated charcoal has been measured under specified conditions to evaluate the selectivity. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：17 / 21

页数：5

共 16 条

[1] Removal of zinc from aqueous solutions using sea nodule residue [J].