Preparation method and preparation device of black phosphorus-graphene heterojunction loaded nickel nitride

The invention relates to the technical field of new materials, and discloses a black phosphorus-graphene heterojunction loaded nickel nitride preparation method, which comprises: S1) respectively weighing red phosphorus powder and cellulose powder, dispersing in deionized water, and carrying out ultrasonic treatment to obtain a dispersion liquid containing a combination of red phosphorus and cellulose; S2) adding nickel nitride particles into the dispersion liquid, stirring, putting the stirred mixed solution into a vacuum oven, and drying to constant weight to obtain a mixture; S3) putting the mixture into a high-voltage discharge cavity, and performing high-voltage discharge processing to obtain a crude product; and S4) dispersing the crude product in absolute ethyl alcohol, injecting into a centrifugal tube, putting into a centrifugal machine, performing centrifugal purification to obtain a refined product, putting into a vacuum drying oven, and drying to constant weight to obtain the black phosphorus-grap