Metal complexation by chitosan and its derivatives: a review

By A. Varma, S. Deshpande, J. Kennedy. 2004

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Application of magnetic chitosan composites for the removal of toxic metal and dyes from aqueous solutions. (2013, background): “[40] published a review that outlined the various classes of chitosan derivatives and compared their ion-binding abilities under varying conditions, and described analytical methods, the sorption mechanism, and a structural analysis of the metal complexes using a variety of methods.”
Production and applications of activated carbons as adsorbents from olive stones (2019, background): “This process includes the coordination of the heavy metal ion with a number of functional surface groups and takes place via lone pair electron donation or hydrogen bonding [45].”
The past, present, and future trends of biosorption (2010, background): “Cross-linking techniques employing chemical linkers have been also used by many researchers and these have sometimes resulted in the favorable modification of functionality of biosorbents [53,57,71].”
Heterogeneous catalysis on chitosan-based materials: a review (2005, background): “The interactions of chitosan with metal ions have been abundantly described [2,58].”