Khandanlou, Roshanak and Ahmad, Mansor and Masoumi, Hamid Reza Fard and Shameli, Kamyar and Basri, Mahiran and Kalantari, Katayoon (2015) Rapid adsorption of copper(ii) and lead(ii) by rice straw/fe3o4 nanocomposite: optimization, equilibrium isotherms, and adsorption kinetics study. Plos One, 10 (3). ISSN 1932-6203
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Official URL: http://dx.doi.org/10.1371/journal.pone.0120264
Abstract
Rice straw/magnetic nanocomposites (RS/Fe3O4-NCs) were prepared via co-precipitation method for removal of Pb(II) and Cu(II) from aqueous solutions. Response surface methodology (RSM) was utilized to find the optimum conditions for removal of ions. The effects of three independent variables including initial ion concentration, removal time, and adsorbent dosage were investigated on the maximum adsorption of Pb (II) and Cu (II). The optimum conditions for the adsorption of Pb(II) and Cu(II) were obtained (100 and 60 mg/L) of initial ion concentration, (41.96 and 59.35 s) of removal time and 0.13 g of adsorbent for both ions, respectively. The maximum removal efficiencies of Pb(II) and Cu(II) were obtained 96.25% and 75.54%, respectively. In the equilibrium isotherm study, the adsorption data fitted well with the Langmuir isotherm model. The adsorption kinetics was best depicted by the pseudo-second order model. Desorption experiments showed adsorbent can be reused successfully for three adsorption-desorption cycles.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | response-surface methodology, aqueous-solution |
| Subjects: | T Technology > T Technology (General) |
| Divisions: | Malaysia-Japan International Institute of Technology |
| ID Code: | 55179 |
| Deposited By: | Muhamad Idham Sulong |
| Deposited On: | 04 Sep 2016 01:04 |
| Last Modified: | 04 Sep 2016 01:04 |
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