Abstract
In this study magnetic Prussian blue (MPB) was synthesized and applied as sorbent for the efficient removal of heavy metals (Cu (II), Co (II), Ni (II) and Pb (II)) from aqueous solution. The average diameter of nanoparticles was found to be about 15 nm. The experimental results were fitted to Langmuir, Freundlich and Dubinin-Radushkevich models with high regression coefficients. The kinetics data were expressed by pseudo-first-order, pseudo-second-order and intraparticle diffusion models. The influence of initial concentration, sorbent dosage and time on the heavy metals sorption efficiency was studied using response surface methodology (RSM). Analysis of variance (ANOVA) was included to assess the adequacy of the model.
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