The removal of Cr(VI) ions from aqueous solutions has been investigated using nanochitosan(NC)/carboxymethyl cellulose(CMC) blend under different experimental conditions of initial chromium concentration, adsorbent dose and pH. The adsorption data have been explained in terms of Langmuir and Freundlich equations. The sorption kinetics was tested for the pseudo-first order and pseudo-second order reaction. The results revealed that the adsorptions of Cr(VI) onto NC/CMC blend, was found to fit well with the Freundlich isotherm. The rate constants of sorption for kinetic models were calculated and good correlation coefficients obtained for the pseudo-second-order kinetic model. The results indicate that under the optimum conditions, the NC/CMC blend was found as an effective adsorbent for chromium.
