▎ 摘　　要

NOVELTY - Modifying graphene comprises e.g. storing graphene, surface treatment agent, solvent, fusing agent and transparent substrate separately and ensuring that the surface treatment agent, solvents and fusion agents are sealed after pre-adjustment, selecting an ultrasonic stirring device, placing the graphene at room temperature, adding the solvent to the graphene, fixing both sides of the ultrasonic stirring device to prevent shaking, ultrasonically stirring at 55-80 degrees C, 200-400 rotations/minute for 15-30 minutes, to obtain graphene suspension, selecting the ultrasonic stirring device, setting the graphene suspension, adding 25-30 wt.% surface treatment agent, ultrasonically stirring at 40-60 degrees C, 300-500 rotations/minute for 30-50 minutes, and processing the graphene at one time. USE - The method is useful for modifying graphene. ADVANTAGE - The method: improves the uniform dispersion of graphene in a variety of polar aprotic solvents; improves the resistance; avoids agglomeration of photocatalytic substances and improves efficiency; can form a nano-interface state effect with the positive and negative catalytic material layer; reduces the light absorption barrier; enhances free radical chain reaction; has good degradation efficiency of organic pollutants. DETAILED DESCRIPTION - Modifying graphene comprises (1) storing graphene, surface treatment agent, solvent, fusing agent and transparent substrate separately and ensuring that the surface treatment agent, solvents and fusion agents are sealed after pre-adjustment, (2) selecting an ultrasonic stirring device, placing the graphene at room temperature, adding the solvent to the graphene, fixing both sides of the ultrasonic stirring device to prevent shaking, ultrasonically stirring at 55-80 degrees C, 200-400 rotations/minute for 15-30 minutes, to obtain graphene suspension, (3) selecting the ultrasonic stirring device, setting the graphene suspension, adding 25-30 wt.% surface treatment agent, ultrasonically stirring at 40-60 degrees C, 300-500 rotations/minute for 30-50 minutes, and processing the graphene at one time, (4) performing fusion reaction of the rich functional groups on the surface of the primary treated graphene with the fusing agent, uniformly dispersing in a variety of polar aprotic solvents, which improves resistance, and maintains stable performance, (5) depositing a vertical graphene/graphite phase dicyanocyanamide composite on both sides of the transparent substrate, using the high-load interface of vertical graphene to multilayer nanostructured photocatalyst materials to form high-density graphene-photocatalyst nano-dot positive and cathode, loading on double-side to improve light absorption and reaction efficiency, (6) using the nano-interface state effect formed by the graphene- dicyanocyanamide composite material and the positive and cathode catalytic material layers to reduce the light absorption barrier, realizing the multiphoton effect, and forming infrared-visible-ultraviolet broad spectrum absorption, and (7) using the principle of the photocatalytic fuel cell, loading nano-iron quantum dots, under light conditions, and forming enhanced free radical chain reaction of iron ion participation.