▎ 摘　　要

NOVELTY - Graphene modified photo-catalytic aqueous coating, comprises 10-25 wt.% a nano-titanium dioxide, 10-25 wt.% nano-bismuth molybdate, 10-25 wt.% bismuth oxyiodide, 18-30 wt.% film-forming substance, 0.1-2 wt.% graphene oxide, 0.1-2 wt.% polyvinyl pyrrolidone, 0.1-2 wt.% hydroxypropyl methyl cellulose, 0.5-5 wt.% dodecyl alcohol ester and 5-30 wt.% water as finishing coat and 10-25 wt.% nano silicon dioxide, 10-35 wt.% hollow glass microsphere, 20-30 wt.% film-forming substance, 0.5-5 wt.% dimethyl silicone polymer, 0.5-5 wt.% diisopropyl alcohol acid ester and 10-50 wt.% water as primer. The film-forming substance styrene-acrylic emulsion, silicone-acrylic emulsion or pure acrylic emulsion USE - The graphene modified photo-catalytic aqueous coating is useful for degrading organic pollutant in black and smelly water. ADVANTAGE - The coating: has strong adhesive force and can coat on the bionic lily. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for: (1) preparing the graphene modified photocatalytic aqueous coating comprising (i) preparing a finishing coating by (a) mixing and stirring the graphene oxide and polyvinylpyrrolidone to obtain a mixture A, (b) mixing and stirring the mixture A, film forming substance and hydroxypropyl methyl cellulose to obtain a mixture B, (c) mixing and stirring the mixture B with the nano titanium dioxide, nano bismuth molybdate, bismuth oxyiodide and dodecyl alcohol ester to obtain a mixture C, and (iv) mixing and stirring the mixture C and water to obtain the product, (ii) preparing a primer by (i) mixing and stirring the nano silicon dioxide and hollow glass beads to obtain a mixture D, (ii) mixing and stirring the mixture D and film-forming substance to obtain a mixture E, (iii) mixing and stirring the mixture E, polydimethylsiloxane and diisopropanol adipic acid ester to obtain a mixture F, and (4) mixing and stirring the mixture F and water to obtain the primer of graphene modified photocatalytic aqueous coating (2) photo-catalytic aqueous coating/bionic sleeping lotus composite material comprising bionic lily, a primer layer and a surface paint layer, where the primer layer is uniformly coated on the surface of the bionic lily and graphene modified photo-catalytic aqueous paint. The surface paint layer is uniformly coated on the surface of the primer layer by graphene modified photocatalytic aqueous coating paint (3) preparing the photo-catalytic aqueous coating/bionic sleeping lotus composite material comprising (i) dividing the primer of the graphene modified photo-catalytic aqueous coating into 1-3 times uniformly coated on the surface of the bionic lily and forming a primer layer, (ii) dividing the surface of the graphene modified photo-catalytic aqueous coating into 3-8 times uniformly coated on the surface of the primer layer and forming a top coat layer; and (4) a treatment method of black smelly water body comprising placing the photo-catalytic aqueous coating/bionic sleeping lotus composite material in the black and smelly water to be treated to degrade the pollutant in the black and smelly water, preferably, based on the volume of the area/black smelly water body of the bionic lily, the photo-catalytic aqueous coating/bionic sleeping composite material is used in the dosage of 40-150 cm2/l.