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Rapid adsorption of heavy metals by Fe3O4/talc nanocomposite and optimization study using response surface methodology


Kalantari, Katayoon and Ahmad @ Ayob, Mansor and Masoumi, Hamid Reza Fard and Shameli, Kamyar and Basri, Mahiran and Khandanlou, Roshanak (2014) Rapid adsorption of heavy metals by Fe3O4/talc nanocomposite and optimization study using response surface methodology. International Journal of Molecular Sciences, 15 (7). pp. 12913-12927. ISSN 1422-0067


Fe3O4/talc nanocomposite was used for removal of Cu(II), Ni(II), and Pb(II) ions from aqueous solutions. Experiments were designed by response surface methodology (RSM) and a quadratic model was used to predict the variables. The adsorption parameters such as adsorbent dosage, removal time, and initial ion concentration were used as the independent variables and their effects on heavy metal ion removal were investigated. Analysis of variance was incorporated to judge the adequacy of the models. Optimal conditions with initial heavy metal ion concentration of 100, 92 and 270 mg/L, 120 s of removal time and 0.12 g of adsorbent amount resulted in 72.15%, 50.23%, and 91.35% removal efficiency for Cu(II), Ni(II), and Pb(II), respectively. The predictions of the model were in good agreement with experimental results and the Fe3O4/talc nanocomposite was successfully used to remove heavy metals from aqueous solutions.

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Official URL or Download Paper: http://www.mdpi.com/1422-0067/15/7/12913

Additional Metadata

Item Type: Article
Divisions: Faculty of Science
DOI Number: https://doi.org/10.3390/ijms150712913
Publisher: MDPI AG
Keywords: Heavy metals; Fe3O4/talc nanocomposites; Adsorption; Response surface methodology; Adsorption kinetics
Depositing User: Nurul Ainie Mokhtar
Date Deposited: 30 Dec 2015 11:23
Last Modified: 11 Oct 2018 03:33
Altmetrics: http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.3390/ijms150712913
URI: http://psasir.upm.edu.my/id/eprint/35150
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