Cellulose was modified with glycidyl methacrylate (GMA) and diethylenetriamine. The modified cellulose obtained was characterized by FTIR, TGA, elemental analysis, and BET measurements. The adsorption behavior of the modified cellulose toward Cu(II) and Hg(II) in aqueous solution was studied using batch technique. Maximum uptake values of 2.0 and 1.0 mmol/g were recorded for Hg(II) and Cu(II), respectively. The uptake was studied at different temperatures where the thermodynamic parameters indicated endothermic nature for the adsorption process. The adsorption process was found to follow pseudo-second-order kinetics. Regeneration was achieved using acidified thiourea.
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Donia et al. (2012) studied this question.
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