Ramavandi, B and Bahador, F and Foroutan, R and Esmaeili, H (2021) Enhancement of the chromium removal behavior of Moringa oleifera activated carbon by chitosan and iron oxide nanoparticles from water. Carbohydrate Polymers, 251. ISSN 01448617
Full text not available from this repository.Abstract
The effect of chitosan and Fe3O4 magnetic nanoparticles on the chromium adsorption property of Moringa oleifera activated carbon (AC) was explored. Various techniques were applied to reveal the properties of adsorbers to absorb chromium ions. A majority of the pollutant was removed at pH2 and 50 min. The kinetic behavior of the chromium uptake process was governed by the pseudo-second-order kinetic model (PSOKM). Based on the thermodynamic investigation, the chromium adsorption using all adsorbers was exothermic and spontaneous. The maximum single-layer adsorption capacity of AC, CS/AC, AC/Fe3O4, and CS/AC/Fe3O4 adsorbers was 56.78 mg/g, 114.80 mg/g, 121.70 mg/g, and 130.80 mg/g, respectively. The isotherm constants quantity highlighted that the Cr-adsorption process is optimal and physical. The acquired findings revealed that the modification of AC by chitosan and Fe3O4 nanoparticles increased the Cr adsorption. Adsorbers re-used up to 5 stages with a yield >90 %, which indicates that the composites are a promising option for Cr removal.
| Item Type: | Article |
|---|---|
| Subjects: | T Technology > TD Environmental technology. Sanitary engineering |
| Divisions: | Faculty of Engineering, Science and Mathematics > School of Civil Engineering and the Environment |
| Depositing User: | خدیجه شبانکاره |
| Date Deposited: | 04 Sep 2021 06:57 |
| Last Modified: | 04 Sep 2021 06:57 |
| URI: | http://eprints.bpums.ac.ir/id/eprint/9383 |
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