Photodegradation of indigo carmine and methylene blue dyes in aqueous solution by SiC-TiO2 catalysts prepared by sol-gel

► Photodegradation of organic dyes is possible using sol-gel SiC-TiO2 catalysts. ► SiC-TiO2 makes a synergy effect that enhances its catalytic activity. ► Sol-gel allows good dispersion and attachment of TiO2 particles on SiC surface. ► SiC-TiO2 exhibits better activity than TiO2 (P25) on organic dyes degradation. ► SiC-TiO2 catalysts are settled down and easily separated after photocatalysis.