Preconcentration of toxic polyvalent metals by biopolymer chitosan, immobilized on the surface of sokirnitskiy clinoptilolite

Анотація

        Composite chitosan-clinoptilolite was obtained by crosslinking of adsorbed biopolymer on the surface with glutaraldehyde. Anchorage of chitosan on the clinoptilolite surface was confirmed by IR spectroscopy. Concentration of immobilized chitosan was estimated using thermogravimetric analysis. The adsorption of microquantities of V(V), Mo(VI) and Cr(VI) oxoanions from aqueous solutions by obtained composite has been studied. The sorption capacities and kinetics adsorption characteristics of the composite adsorbent were estimated