Abstract − Analytical Sciences, 24(8), 1045 (2008).
Synthesis and Characterization of a Chitosan-bearing Binucleating Ligand and Its pH Dependency on Copper(II) Adsorption
K. R. KRISHNAPRIYA and M. KANDASWAMY
Department of Inorganic Chemistry, University of Madras, Guindy Campus, Chennai 600 025, India
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.
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