▎ 摘　　要

NOVELTY - Heterogeneous photocatalyst comprises graphene and bismuth molybdate that has two different formula Bi2MoO6 and Bi3.64Mo0.35O6.55, where graphite is 1% of the total mass of bismuth molybdate. The catalyst has good degradation effect on rhodamine B in visible light. USE - Heterogeneous photocatalyst used during degradation of organic pollutant. ADVANTAGE - The heterogeneous photocatalyst is pure, stable, acid resistance and alkali resistance, and ensures simple preparation in high yield and cost-effective manner. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing heterogeneous photocatalyst, which involves: (A) obtaining graphite oxide using improved Hummers oxidation method; (B) dispersing graphite oxide in deionized water using ultrasonic wave for 2 hours to obtain graphene oxide dispersion liquid; (C) dispersing bismuth nitrate in deionized water; (D) adding ammonium key(sic) to nitrate solution; (E) stirring to obtain solution A; (F) diluting graphene oxide dispersion with water to obtain solution B; (G) stirring solution B with solution A at normal temperature for 30 minutes; (H) adding hydrazine hydrate, absolute ethyl alcohol and ammonia water in polytetrafluoroethylene reaction kettle for hydro-thermal synthesis at pH 8.5; (I) keeping reaction mixture in muffle furnace at 150 degrees C for 5 hours to finish reaction; and (J) filtering and vacuum drying at 60 degrees C for 24 hours to obtain catalyst.