Abstract
This study is the first ever report of application of gamma degraded nanochitosan biopolymer for the adsorptive removal of Cd(II) from aqueous systems. The viscosity studies revealed that the average molecular weight goes on decreasing with increase in gamma irradiation dose. The degraded products were subjected to characterization and were used for adsorption of Cd(II) in aqueous medium showing optimum adsorption capacity of 47.6 mg g−1 at 10 kGy dose in nice accordance with Freundlich model of isotherm and followed pseudo-second order rate expression. The crystallite size of chitosan was found to reduce from 39.15 nm to 7.012 nm with 10 kGy dose.
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