Abd. Razak, Nur Fadzilah and Shamsuddin, Mustaffa and Lee, Siew Ling (2018) Adsorption kinetics and thermodynamics studies of gold(III) ions using thioctic acid functionalized silica coated magnetite nanoparticles. Chemical Engineering Research and Design, 130 (NA). pp. 18-28. ISSN 0263-8762
Full text not available from this repository.
Official URL: http://dx.doi.org/10.1016/j.cherd.2017.12.004
Abstract
Thioctic acid functionalized silica coated magnetite nanoparticles, RS-SR-NH-SiO2-Fe3O4, has been synthesized and its ability for the recovery of Au(III) in aqueous solutions was assessed. The results of the adsorption thermodynamics and kinetics showed that this magnetic adsorbent has good adsorption capacity for Au(III) and the best interpretation for the experimental data was given by the Langmuir isotherm model. The adsorption kinetics of RS-SR-NH-SiO2-Fe3O4 was well fitted with the pseudo-second-order rate equation. The thermodynamic parameters ΔG, ΔH and ΔS were also evaluated and the overall adsorption process was exothermic and spontaneous in nature.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | thioctic acid, adsorbent, Au(III) ions, isotherm, kinetics and thermodynamics |
| Subjects: | Q Science > QD Chemistry |
| Divisions: | Science |
| ID Code: | 97083 |
| Deposited By: | Yanti Mohd Shah |
| Deposited On: | 12 Sep 2022 07:58 |
| Last Modified: | 12 Sep 2022 07:58 |
Repository Staff Only: item control page
