| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 9676080 | Colloids and Surfaces A: Physicochemical and Engineering Aspects | 2005 | 5 Pages |
Abstract
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 ÎH, ÎS and ÎG 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.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Colloid and Surface Chemistry
Authors
Riaz Qadeer,