▎ 摘　　要

NOVELTY - Preparing foamed nickel-loaded carbonitride/reduced graphene photocatalyst comprises e.g. (i) placing graphitic carbon nitride block in alumina ceramic crucible, cooling, placing graphitic carbon nitride nanosheet in nitric acid, (ii) taking graphite oxide aqueous dispersion, placing graphitic carbon nitride nanosheet in aqueous solution of graphene oxide to obtain catalyst precursor graphitic carbon nitride/graphene oxide dispersion, (iii) cutting foam nickel into 25 x 25 x 1 mm small pieces, and (iv) placing foamed nickel graphitic carbon nitride/graphene oxide in reducing agent solution. USE - The method is useful for preparing foamed nickel-loaded carbonitride/reduced graphene photocatalyst (claimed). ADVANTAGE - The photocatalyst has strong binding force, catalyze degradation of organic pollutants in water, and has excellent cycle performance. DETAILED DESCRIPTION - Preparing foamed nickel-loaded carbonitride/reduced graphene photocatalyst comprises (i) placing 0.1-0.5 g graphitic carbon nitride block in alumina ceramic crucible, raising temperature to 520 degrees C at a heating rate of 5 degrees C/minutes in muffle furnace for 2 hours, then naturally cooling to obtain hot peeling graphitic carbon nitride nanosheet, placing 0.5 g graphitic carbon nitride nanosheets in 50 ml 0.1-0.5 M nitric acid, stirring for 2 hours, filtering and washing with deionized water to pH 7 and drying at 50 degrees C, (ii) taking 10 ml graphite oxide aqueous dispersion having concentration 2 mg/ml, adjusting pH to 6-8 using 1 M hydrochloric acid and 1 M sodium hydroxide solution, placing 60-220 mg graphitic carbon nitride nanosheets in aqueous solution of graphene oxide, performing ultrasound treatment for 1 hour to obtain catalyst precursor graphitic carbon nitride/graphene oxide dispersion, where mass ratio between graphene oxide in graphitic carbon nitride and dispersion is 1:3-1:11, (iii) cutting foam nickel into 25 x 25 x 1 mm small pieces, washing with acetone, ethanol and deionized water, performing ultrasonic shock treatment for 5 minutes, drying in oven at 50 degrees C, placing obtained graphitic carbon nitride/reduced graphene dispersion for 10 minutes, suspending the suspension on the substrate surface load, removing at 50 degrees C and then immersing again repeatedly three times, drying to obtain foamed nickel graphitic carbon nitride/graphene oxide, and (iv) placing foamed nickel graphitic carbon nitride/graphene oxide in 50 ml reducing agent solution having concentration of 0.2-4 g/l, placing in water bath for 1 hours at 60-80 degrees C, removing, washing with deionized water, naturally drying, where solute of reducing agent solution is hydrazine hydrate, ascorbic acid or sodium citrate.