alexa Adsorption of As(III) on chitosan-Fe-crosslinked complex (Ch-Fe).
Chemical Engineering

Chemical Engineering

Journal of Analytical & Bioanalytical Techniques

Author(s): Dos Santos HH, Demarchi CA, Rodrigues CA, Greneche JM, Nedelko N,

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Abstract It was reported the adsorption of As(III) on the surface of the chitosan-Fe-crosslinked complex. Theoretical correlation of the experimental equilibrium adsorption data for As(III)/Ch-Fe system is best explained by the non-linearized form Langmuir-Freundlich isotherm model. At optimum conditions, pH 9.0, the maximum adsorption capacity, calculated using the Langmuir-Freundlich isotherm model was 13.4 mg g⁻¹. The adsorption kinetics of As(III) onto Ch-Fe are described by the pseudo-first-order kinetic equation. The results of the Mössbauer spectroscopy showed that there is no redox process on the surface of the adsorbent. Copyright © 2010 Elsevier Ltd. All rights reserved. This article was published in Chemosphere and referenced in Journal of Analytical & Bioanalytical Techniques

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