▎ 摘　　要

NOVELTY - Graphene oxide corrosion inhibitor, where melamine is grafted onto graphene oxide, is claimed. USE - Used as graphene oxide corrosion inhibitor. ADVANTAGE - The corrosion inhibitor can be self-assembled on the surface of copper in a solvent, which can moderate the corrosion of copper in seawater or sodium chloride solution to a certain extent and has less dosage, less toxicity and simple operation. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for: (1) preparing the corrosion inhibitor, comprising dissolving graphene oxide in a solvent, ultrasonically dispersing to obtain graphene oxide suspension, adding melamine and dicyclohexylcarbazide to graphene oxide suspension, reacting, centrifuging, taking the supernatant as a solution containing graphene oxide grafted melamine; (2) use of corrosion inhibitor, where corrosion inhibitor is formed by self-assembly of a film on a copper surface; and (3) use method of corrosion inhibitor, comprising placing the pretreated copper into the solution of the corrosion inhibitor, immersing for a certain period of time at room temperature, where copper surface forms a corrosion inhibition membrane.