Adsorption properties of ionic species on cross-linked chitosans modified with catechol and salicylic acid moieties.

Anal Sci

Department of International Conservation Studies for Cultural Properties, Faculty of Cultural Properties, Kibi International University, Okayama, Japan.

Published: May 2008

Catechol-type chitosan resin and salicylic acid-type chitosan resin were easily synthesized for use in estimating the adsorption behavior of 34 elements at pH 1 - 7 in aquatic media. The catechol-type chitosan resin could adsorb Cu(II) at pH 3 - 7, In(III) at pH 4 - 6, Pb(II) and lanthanoids at pH 5 - 7, and U(VI) at pH 4 - 7 more effectively than the salicylic acid-type chitosan resin and the cross-linked chitosan resin (base material). Adsorption ability was in the order: catechol-type chitosan resin > salicylic acid-type chitosan resin > cross-linked chitosan resin.

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Source
http://dx.doi.org/10.2116/analsci.24.665DOI Listing

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