▎ 摘　　要

NOVELTY - Preparation of graphene oxide paper, involves adding auxiliary solvent, subjecting graphene oxide hydrosol to suction filtration, after completion of ultrasonic dispersion in methanol, performing suction filtration, where the auxiliary solvent is copper chloride dihydrate or methylene blue. USE - Preparation of graphene oxide paper. ADVANTAGE - The method reduces the adsorption effect of graphene oxide on the suction filtration membrane by adding an auxiliary solvent, avoids clogging the membrane pores of the suction filtration membrane and reduces the suction filtration time, and ensures convenient peel off of the dried graphene oxide paper from the suction filter membrane.