Abstract
ABSTRACT A green biocomposite (BTF-i-ACS) consisting of banana trunk fibers (BTF)-infused acidified chitosan (ACS) was prepared. The biocomposite was characterized by means of Fourier Transform Infrared Spectroscopy (FT-IR), Thermogravimetric Analysis (TGA) and Scanning Electron Microscopy (SEM). The results of characterization indicated that BTF are widely immobilized in ACS without any chemical interaction. The biocomposite was used for the removal of Cd2+ from aqueous media. The effect of pH, contact time and initial concentration was evaluated. Contact time of 120 min and pH ~ 6.50 were selected for the removal of Cd2+ at ambient temperature (27 ± 1 °C). The percentage removal of Cd2+ was found to be 92.67%. The data best fitted pseudo-second order kinetics and Freundlich isotherm model indicating that the rate-limiting step might be chemisorption involving sharing or transfer of electrons between Cd2+ and biocomposite.
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