▎ 摘　　要

NOVELTY - Preparing zinc cadmium sulfite/reduced graphene oxide (Zn(0.2)Cd(0.8)S/rGO) photocatalytic material comprises e.g. taking 39.6-59.2 ml deionized water and adding 0.4-0.8 ml hydrofluoric acid magnetic stirring to form a mixed solution A, adding 0.25-0.75 mmol zinc acetate dehydrate and 1-3 mmol cadmium nitrate tetrahydrate to the mixed solution A at a molar ratio of Zn:Cd of 1:4, and magnetically stirring to form a mixture solution B, adding 2-6 mmol of thiourea as a sulfur source to the mixed solution B, magnetic stirring to form a mixed solution C, adding mixed solution C to the inner liner of the polytetrafluoroethylene at 140-180 degrees C hydrothermal reaction for 12-24 hours, separately centrifuging the reaction product and washing with deionized water and ethanol, and vacuum-drying to obtain a leaf-type Zn(0.2)Cd(0.8)S powder, taking 3-56 ml deionized water to 1-3 ml 1 mg/ml of graphene oxide, magnetic stirring to form a mixed solution D, adding Zn0.2Cd0.8S powder to mixed solution D. USE - The method is useful for preparing zinc cadmium sulfite/reduced graphene oxide (Zn(0.2)Cd(0.8)S/rGO) photocatalytic material. ADVANTAGE - The method is simple, good crystallinity, high purity and performance. DETAILED DESCRIPTION - Preparing zinc cadmium sulfite/reduced graphene oxide (Zn(0.2)Cd(0.8)S/rGO) photocatalytic material comprises (i) taking 39.6-59.2 ml deionized water and adding 0.4-0.8 ml hydrofluoric acid magnetic stirring to form a mixed solution A, (ii) adding 0.25-0.75 mmol zinc acetate dehydrate and 1-3 mmol cadmium nitrate tetrahydrate to the mixed solution A at a molar ratio of Zn:Cd of 1:4, and magnetically stirring to form a mixture solution B, (iii) adding 2-6 mmol of thiourea as a sulfur source to the mixed solution B, magnetic stirring to form a mixed solution C, (iv) adding the mixed solution C to the inner liner of the polytetrafluoroethylene at 140-180 degrees C hydrothermal reaction for 12-24 hours, (v) separately centrifuging the reaction product and washing with deionized water and ethanol, and vacuum-drying to obtain a leaf-type Zn(0.2)Cd(0.8)S powder, (vi) taking 3-56 ml deionized water to 1-3 ml 1 mg/ml of graphene oxide, magnetic stirring to form a mixed solution D, (vii) adding 0.5 to 1 mmol Zn0.2Cd0.8S powder to the mixed solution D, and magnetically stirring to form a mixed solution E, (viii) adding the mixed solution E to the lining of the polytetrafluoroethylene at 140-180 degrees C hydrothermal reaction for 8-16 hours, and (ix) separately centrifuging the reaction product by deionized water and ethanol, drying under vacuum, and grinding.