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Hall, K.R., Eagleton, L.C., Acrivos, A. and Vermeulen, T. (1966) Pore and Solid-Diffusion Kinetics in Fixed-Bed Adsorption under Constant-Pattern Conditions. Industrial & Engineering Chemistry Research, 5, 212-223.

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• TITLE: Sesame Husk as Adsorbent for Copper(II) Ions Removal from Aqueous Solution

  AUTHORS: Haitham Ahmed El-Araby, Abel Moneim Mohamed Ahmed Ibrahim, Ahmed Hashem Mangood, Adel A.-H. Abdel-Rahman

  KEYWORDS: Copper(II) Ions Adsorption, Kinetics, Thermodynamic Parameters

  JOURNAL NAME: Journal of Geoscience and Environment Protection, Vol.5 No.7, July 21, 2017

  ABSTRACT: In this study, the adsorption behavior of copper(II) ions from aqueous solutions onto sesame husk (SH) was investigated. The effect of different parameters such as pH, contact time, adsorbent dosage, adsorbate concentration, temperature and agitation speed was studied. Thermodynamic parameters, equilibrium isotherms and kinetic data have been evaluated. The functional groups and surface morphology of SH adsorbent were characterized by FTIR and SEM. Adsorption equilibrium isotherms were expressed by Langmuir, Freundlich and Dubinin-Radushkevich (D-R) adsorption models and it was found that Langmuir adsorption model fits the experimental data better than Freundlich and D-R models. The adsorption can be best described by the pseudo second-order kinetic model.