▎ 摘　　要

NOVELTY - Preparing cadmium sulfide/graphene/iron(III) oxide composite photocatalyst comprises dissolving prussian blue (PB) in water, ultrasonic dispersing, adding solution of polyacrylamide hydrochloride (PAH), stirring, then adding oxidized graphite dispersion and cadmium nitrates olution, mixing, adding sodium sulfide solution, mixing, washing product with deionized water to obtain lead/graphene oxide/cadmium sulfide product, placing lead/graphene oxide/cadmium sulfide product under argon atmosphere, heating at 350 degrees C and then allowing to stand for 2 hours to obtain final product. USE - The method is useful for preparing cadmium sulfide/graphene/iron(III) oxide composite photocatalyst (claimed). ADVANTAGE - The photocatalyst has excellent visible light catalyst, and photocatalytic degradation effect.