Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
13455241 | Sustainable Materials and Technologies | 2020 | 58 Pages |
Abstract
In this paper, a mechanistic analysis of the adsorption and reduction of gold(III) chloride complex ions on the activated carbon surface were described. All experiments were performed in the presence of nickel ions. Obtained results confirm that there is no influence of light and heavy cations on the adsorption process. From the Arrhenius equation, activation parameters such as activation energy (17.53 ± 0.98 kJ/mol) and pre-exponential (28.7 ± 8.91 minâ1) factor were determined. SEM and XRD, as well as XPS analysis, have confirmed the presence of metallic gold on the surface of activated carbon. The concentration distribution of gold inside activated carbon after adsorption process both for continuous stirred tank reactor and continuous flow reactor was determined. New estimator for interfacial area of mass transfer was defined.
Related Topics
Physical Sciences and Engineering
Energy
Renewable Energy, Sustainability and the Environment
Authors
Marek Wojnicki, Pierrick Nabec, Magdalena Luty-BÅocho, Robert Socha, Xuegeng Yang, Zbigniew PÄdzich,