Abstract
A novel chitosan derivative has been synthesized by the condensation of a binucleating ligand, 2,6-bis[(N-methylpiperazine-1-yl)methyl]-4-formylphenol (BNL), with chitosan (CTS). The resulting material (CTS-BNL) was characterized and its adsorption properties towards copper(II) ions in aqueous solutions of various pH have been studied, the adsorption capacity (Qe) is about 0.94 mmol g-1 at pH 6 and 1.45 mmol g-1 at pH 8.5. This higher adsorption capacity may be due to the binucleating ligand anchored to chitosan.
