▎ 摘　　要

NOVELTY - The composite visible light catalyst comprises graphite oxide, silver phosphate, rhodamine B dye, and methylene blue dye. The silver phosphate particles are covered by the graphene oxide. A particle size distribution of the catalyst is 0.4-1 mm. The rhodamine B and methylene blue are provided with good optical catalysis degradation effect. A degradation rate of: rhodamine B is 100%; and methylene blue is greater than 90%. USE - Used as a composite visible light catalyst. ADVANTAGE - The composite visible light catalyst can be efficiently prepared in a simple manner. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing graphite oxide/silver phosphate composite visible light catalyst.