▎ 摘　　要

NOVELTY - Preparing composite photocatalyst involves compounding graphene oxide composite with keggin structure heteropoly acid salt of linear formula by a solution blending method, and using interfacial polymerization method and an aniline synthesis ternary compound catalyst. USE - Method for preparing composite photocatalyst. ADVANTAGE - The method enables to prepare composite photocatalyst in simple manner under mild reaction condition, has good safety, high efficiency degradation ability to the organic dye methyl red test, and has higher photo-catalytic activity photo-catalytic. DETAILED DESCRIPTION - Preparing composite photocatalyst involves compounding graphene oxide composite with keggin structure heteropoly acid salt of linear formula beta 2K8SiW11O3913H2O by a solution blending method, and using interfacial polymerization method and an aniline synthesis ternary compound catalyst.