▎ 摘　　要

NOVELTY - Preparation of nitrogen-doped graphene loaded copper-copper oxide nanocomposite involves adding anhydrous ethanol (300-500 ml) to graphite oxide, ultrasonic dispersing, obtaining graphene oxide ethanol dispersion; adding copper phthalocyanine (60-100 mg) to the dispersion, ultrasonic dispersing to obtain the mixed solution; placing the mixed solution into an oven at 80 degrees C, after drying the abrasive to obtain the graphene oxide/phthalocyanine copper powder; and preparation of nitrogen doped graphene loaded copper-copper oxide nano-Composite material. USE - For preparation of nitrogen-doped graphene loaded copper-copper oxide nanocomposite (claimed) as catalyst for photocatalysis. ADVANTAGE - The preparation method is safe, simple, provides high yield, easy reproduction, and is easy for industrial production. The nitrogen-doped graphene loaded copper-copper oxide nanocomposite has good application prospect and economic value in terms of photocatalysis, catalytic oxygen, and super capacitors. DETAILED DESCRIPTION - Preparation of nitrogen-doped graphene loaded copper-copper oxide nanocomposite involves preparation of graphite oxide: in the container of ice water bath, adding concentrated sulfuric acid (65 plus minus 0.1 ml), and then adding crystalline flake graphite powder (3 plus minus 0.1 g), and sodium nitrate (1.5 plus minus 0.1 g), stirring, cooling such that system temperature is 0 degrees C, and then adding potassium permanganate (9 plus minus 0.1 g), stirring, maintaining the system temperature at 20 degrees C, taking the container into the oil bath pot at 35 degrees C for 2 hours, adding deionized water and adding diluted hydrogen peroxide solution to give a bright yellow solution, filtering the reaction, repeatedly washing with 10% hydrochloric acid and distilled water respectively, filtering, dialyzing the sticky solid obtained until the pH value is neutral, drying, grinding to give graphite oxide solid, 2) making graphene oxide dispersion: adding anhydrous ethanol (300-500 ml) to graphite oxide (300-500 ml), ultrasonic dispersing using conventional ultrasonic cleaner for 6 hours at 25 degrees C, obtaining graphene oxide ethanol dispersion; 3) making graphene oxide/phthalocyanine copper composite: in the graphene oxide ethanol dispersion, adding copper phthalocyanine (60-100 mg), ultrasonic dispersion using conventional ultrasonic cleaning device for 6 hours at 25 degrees C to obtain the mixed solution; placing the mixed solution into an oven at 80 degrees C, after drying the abrasive to obtain the graphene oxide/phthalocyanine copper powder; 4) preparation of nitrogen doped graphene loaded copper (Cu)-copper oxide (Cu2O) nano-composite material: pouring the graphene oxide/phthalocyanine copper powder into ceramic boat, ceramic boat is sealed at both ends of the post into the quartz tube heating zone, drawing a vacuum air having vacuum level of less than 0.1 MPa, and purging with argon to atmospheric pressure, repeating drawing of vacuum air three times, further into the argon gas, at 5 degrees C/minute, the rate of heating to a temperature of 800-1000 degrees C, post-thermal treatment using argon flow of 200 SCCm; annealing, heating, turned off the power supply, allowing the ceramic boat furnace to cool to room temperature; stopping the vent, taking out the ceramic boat, and collecting reaction products, to obtain nitrogen doped graphene loaded Cu-Cu2O nano-composite material.