Koalin based geopolymer proprities: Bromothymol blue adsorption

Abstract

Hydrothermal stability and chemical solubility of metakaolin appear like a promising alternative for geopolymers elaboration, which have excellent properties such as high mechanical strength, long term durability and stability in alkaline and acidic solutions, fire resistance under high temperature; also the outstanding adsorption properties result in geopolymers to be a desired adsorbent. Therefore, the adsorption of bromothymol blue was done in different concentrations to achieve optimal color degradation. Keywords: Metakaolin, geopolymer, adsorption, bromothymol blue.