Chemistry for Sustainable Development 16 (2008) 407-412 Enhancing the Sorption Activity of Gaize by Thermal and Chemical Modifying

Abstract

Abstract On the basis of opal-cristobalite rock (gaize) a sorbent is obtained for the sorption of heavy metal cations from aqueous medium. The increase in the sorption activity of gaize was achieved via thermal and chemical modification, as well as via immobilization by means of ã-aminopropyl triethoxysilane. Optimum conditions for increasing the sorption activity of gaize have been determined