▎ 摘　　要

NOVELTY - A preparation method of bismuth oxychloride-graphene oxide visible light photocatalyst, involves (S1) dispersing bismuth(III) nitrate pentahydrate in deionized water to obtain white suspension (A), (S2) dissolving potassium chloride to obtain transparent solution (B), (S3) gradually dropping white suspension (A) into transparent solution (B), and continuously stirring to obtain mixed solution (C), (S4) adding graphene oxide into deionized water, and ultrasonically processing to disperse uniformly to obtain solution (D), (S5) adding solution (D) into mixed solution (C), and stirring to obtain mixed solution (E), (S6) transferring the mixed solution (E) into a stainless steel high pressure reactor, and heating to obtain white precipitate (F), (S7) cooling, filtering and collecting the white precipitate (F), and washing to obtain white solution (G), (S8) centrifuging the white solution (G) to obtain a white product (H), and (S9) vacuum drying. USE - Preparation method of bismuth oxychloride-graphene oxide visible light photocatalyst. ADVANTAGE - The nanosheet is smooth, flat and ultra-thin, has large specific surface area and narrow band gap, and exhibits excellent photocatalytic activity to visible light. DETAILED DESCRIPTION - A preparation method of bismuth oxychloride-graphene oxide visible light photocatalyst, involves (S1) adding bismuth(III) nitrate pentahydrate into deionized water, and ultrasonically dispersing for 30 minutes to obtain white suspension (A), (S2) adding potassium chloride into de-ionized water, and stirring to dissolve to obtain transparent solution (B), (S3) gradually dropping the white suspension (A) into the transparent solution (B) under continuous stirring, immediately changing the reaction system into white suspension, and continuously stirring for 30 minutes to obtain mixed solution (C), (S4) adding graphene oxide into deionized water, and ultrasonically processing for 1 hour to disperse uniformly to obtain solution (D), (S5) quickly adding the solution (D) into the mixed solution (C) under continuous stirring, and continuously stirring at room temperature for 30 hours to obtain mixed solution (E), (S6) transferring the mixed solution (E) into a stainless steel high pressure reactor lined with 50 mm PTFE, and heating at 160degreesC for 12 hours to obtain white precipitate (F), (S7) naturally cooling to room temperature, filtering and collecting the white precipitate (F), and washing with deionized water and absolute ethanol 3 times respectively to obtain white solution (G), (S8) centrifuging the white solution (G) to obtain a white product (H), and (S9) vacuum drying the white product (H) at 70degreesC for 12 hours to obtain a target bismuth oxychloride-graphene oxide nanosheet photocatalyst. DESCRIPTION OF DRAWING(S) - The drawing shows a flowchart illustrating the preparation method of bismuth oxychloride-graphene oxide visible light photocatalyst. (Drawing includes non-English language text)