▎ 摘　　要

NOVELTY - A composite material comprises 47-52 pts. wt. platinum-doped basic nickel nitrate, 25-30 pts. wt. bimetal hydroxide, and 18-28 pts. wt. carboxylated graphene, and is prepared using nickel nitrate hexahydrate, triethanolamine, chloroplatinic acid hexahydrate, anhydrous nickel chloride, anhydrous cobalt chloride, distilled water, and anhydrous ethanol. USE - Composite material for adsorption and photocatalysis. ADVANTAGE - The composite material adsorbs and exchanges small organic molecules and ionic pollutants in water to avoid pollution caused by degradation products to water. The bimetallic hydroxide adhere well to the huge surface and pores of graphene oxide, increasing the active site of photocatalysis. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation of composite material, which involves adding 500-800 mL absolute ethanol to reaction bottle, adding platinum-doped basic nickel nitrate, bimetal hydroxide and carboxylated graphene, performing ultrasonic treatment at ultrasonic frequency of 20-28 kHz for 2-5 hours, raising temperature to 50-55 degrees C, transferring to high-speed centrifuge with centrifugal rate of 6000-8000 rpm, centrifuging for 1-1.5 hours, removing upper layer of absolute ethanol, washing with 3.5-7 %mass 0.95-1.7 mol/L dilute hydrochloric acid and distilled water, placing solid substance obtained in oven, and heating to 60-65 degrees C to be fully dried.