Rapid Adsorption of Heavy Metals by Fe3O4/talc Nanocomposite and Optimization Study Using Response Surface Methodology

Overview

Journal Int J Mol Sci

Publisher MDPI

Specialties Biochemistry
Chemistry
Molecular Biology

Date 2014 Jul 23

PMID 25050784

Citations 19

Authors

Katayoon Kalantari

Mansor B Ahmad

Hamid Reza Fard Masoumi

Kamyar Shameli

Mahiran Basri

Roshanak Khandanlou

Affiliations

Soon will be listed here.

Abstract

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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