▎ 摘　　要

NOVELTY - Graphene-supported cobalt hydroxide photocatalyst, comprises catalyst is that a series of complexe graphene oxide/cobalt(II) hydroxide-x (GO/Co(OH)2-x) can be prepared by hydrothermal method and by adjusting different pH, where x = 8-12, cobalt hydroxide with hexagonal sheet structure is dispersed on the surface of graphene oxide sheets. USE - Used as graphene-supported cobalt hydroxide photocatalyst. ADVANTAGE - The method changes photocatalytic performance of the composites. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparing the graphene-supported cobalt hydroxide photocatalyst comprising (a) preparing graphite oxide suspension by mixing the graphite oxide powder with deionized water and treating with an ultrasonic cell disruptor, (b) mixing and dissolving cobalt nitrate hexahydrate powder with deionized water and slowly dropping it into the graphite oxide suspension, adjusting the pH and conducting a hydrothermal reaction, naturally cooling to room temperature, then washing, filtering and the precipitate drying, preparation of a series of complexes GO/Co(OH)2-x according to different pH