Adsorption of Nickel Ions

Abstract Chitosan is an amino-polysaccharide with highly efficient properties for the binding of metal ions. Uptake may occur through chelation on free amino functions (at near-neutral pH) or by electrostatic attraction on protonated amino groups (in acidic solutions). Chitosan synthesation process from fish shells involved four main stages as preconditioning, demineralization, deproteinization, decolorization and deacetylation. Chitosan was characterized using Fourier Transform Infrared Spectroscopy (FTIR) and solubility in 1% acetic acid. The affinity of chitosan for nickel was studied using NiCl 2 .6H 2 O solution as the heavy metal solution containing Ni (II) ions