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  • Chem Sci Trans., 2013, 2(1),  pp 294-300  

    DOI:10.7598/cst2013.200

    Research Article

    Adsorption Kinetics and Intraparticulate Diffusivity of Aniline Blue Dye onto Activated Plantain Peels Carbon

  • OLADAYO ADEYI, OLUSHOLA SUNDAY AYANDA, GODWIN OLADELE OLUTONA and
    OLAMIDE GANIYU
  • Department of Chemical Engineering, Faculty of Engineering, Cape Peninsula University of Technology, P.O. Box 1906, Bellville, South Africa
    Department of Chemistry, Faculty of Applied Sciences, Cape Peninsula University of Technology, P.O. Box 1906, Bellville, South Africa
    Department of Chemistry, Bowen University, Iwo, Osun State, Nigeria
  • Abstract

    The adsorption kinetics and intraparticulate diffusivity of aniline blue dye onto activated plantain peel carbon has been studied. Two kinetic models, the pseudo first- and second-order equations were selected to follow the adsorption process. Kinetic parameters; rate constants, equilibrium adsorption capacities and correlation coefficients, for each kinetic equation were calculated and discussed. Experimental results show that the amount of aniline blue dye adsorbed increased with increasing contact time and the adsorption rate constant (kad) follows the second order kinetics. Results obtained also shows that the adsorption of aniline blue dye onto activated plantain peels carbon is particle-diffusion controlled.

    Keywords

    Plantain peels, Carbon, Adsorption kinetics, Intraparticulate diffusivities, Pseudo first order, Pseudo second order

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