▎ 摘　　要

NOVELTY - Attaching graphene photocatalyst to a surface of artificial float grass comprises cleaning the artificial float grass, ultrasonically cleaning the artificial float grass with acetone and deionized water, taking out artificial float grass and rinsing with water, then using artificial float grass in the drying room for drying, disposing the pretreatment liquid, adding concentrated sulfuric acid and hydrogen peroxide to the pretreatment tank, and adding the concentrated sulfuric acid and the hydrogen peroxide to the volume of the pretreatment tank and stirring uniformly, subjecting to artificial float grass pretreatment, placing the treated artificial float grass in the pretreatment tank, treating, taking out the artificial float grass, rinsing with water, heating the float grass in the drying room and storing the float grass in an absolute ethanol solution, disposing the graphene photocatalyst powder and anhydrous ethanol as a suspension, and heating. USE - The method is useful for purifying water quality. ADVANTAGE - The method is simple and beautify the water surface as an ornamental float grass. DETAILED DESCRIPTION - Attaching graphene photocatalyst to a surface of artificial float grass comprises (i) cleaning the artificial float grass, ultrasonically cleaning the artificial float grass with acetone and deionized water for 15-30 minutes respectively, taking out artificial float grass and rinsing with water for many times, then using artificial float grass in the drying room for drying with 40-50 degrees C hot air for 0.5-1 hours; (ii) disposing the pretreatment liquid, adding a volume ratio of 7:3 concentrated sulfuric acid and hydrogen peroxide to the pretreatment tank respectively, and adding the concentrated sulfuric acid and the hydrogen peroxide to the volume of the pretreatment tank by 1/2-1/3 and stirring uniformly; (iii) subjecting to artificial float grass pretreatment, placing the treated artificial float grass in the pretreatment tank, treating for 30 minutes, taking out the artificial float grass, rinsing with water, heating the float grass at 40-50 degrees C in the drying room for 0.5-1 hours and storing the float grass in an absolute ethanol solution; (iv) disposing the graphene photocatalyst powder and anhydrous ethanol as a suspension, and heating to maintain the temperature of the graphene photocatalyst suspension at 45-60 degrees C under stirring, heating the aluminum-based cross-linking agent solution to 50 degrees C, drop wisely adding into the graphene photocatalyst suspension, and drop wisely adding polyanionic cellulose solution into the graphene photocatalyst suspension, and stirring uniformly to obtain graphene photocatalyst, a solution in which the graphene photocatalyst content is 55-70% of the total weight of the graphene photocatalyst solution, the aluminum-based crosslinking agent content is 0.2-3% of the total weight of the graphene photocatalyst solution, and the polyanionic cellulose content is graphite is 0.1-2% of the total weight of the olefin photocatalyst solution; (v) subjecting to artificial float grass coating, immersing the artificial water after pretreatment into the graphene photocatalyst solution, staying for 2-3 minutes, lifting the artificial float grass and stirring the graphene photocatalyst solution uniformly and repeating the operation for 3-5 times; and (vi) drying the artificial float grass after being coated with the graphene photocatalyst solution, naturally air-drying into a film and drying in a drying room at 50-70 degrees C for 20-30 hours.