▎ 摘　　要

NOVELTY - Microwave preparation of nitrogen-doped graphene loaded nano-copper composite material involves using improved Hummers method to prepare graphene oxide, selecting ethylenediamine as nitrogen source, mixing and dispersing ethylenediamine and graphene oxide in deionized water, transferring into hydrothermal kettle, hydrothermal processing at 180 degrees C for 6 hours, filtering, washing by water and alcohol, vacuum drying to obtain nitrogen-doped graphene, selecting saturated copper nitrate solution as precursor, dispersing nitrogen-doped graphene with saturated copper nitrate solution in ethylene glycol, magnetic stirring at room temperature, placing in three-necked flask, installing microwave reactor, setting reaction condition, heating and refluxing to react, naturally cooling to room temperature, filtering, washing black filter cake with deionized water and absolute ethanol, putting in vacuum drying box to dry, and fully grinding. USE - The method is used for microwave preparing nitrogen-doped graphene loaded nano-copper composite material. ADVANTAGE - The method increases dispersibility of copper nanoparticles by loading nano-copper on nitrogen-doped graphene and catalytic performance of copper nanoparticles by interaction between nitrogen-doped graphene and copper nanoparticles, avoids agglomeration of nano-copper particles, makes nano copper particles have better catalytic performance, and extends life of nano-copper catalyst.