▎ 摘　　要

NOVELTY - Method for preparing copper-reduced graphene oxide nanocomposite antibacterial material involves (a) dissolving water-soluble copper salt and hexamethylenetetramine in deionized water to obtain solution A, (b) dropwise adding aqueous dispersion of graphene oxide to the solution A and stirring evenly to obtain a mixed solution B, (c) dropwise adding the ascorbic acid aqueous solution to the mixed liquid B and stirring evenly to obtain the mixed liquid C, and (d) subjecting the mixed solution C to microwave heating reaction, cooling, centrifuging after completion of the reaction, washing and drying the obtained precipitate. USE - The method is useful for preparing Cu-rGO nanocomposite antibacterial material, which is useful for preparing coating and board (claimed) for providing antibacterial effect. ADVANTAGE - The method prepares Cu-rGO nanocomposite antibacterial material having antibacterial activity in broad-spectrum. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following: (1) antibacterial coating comprising the Cu-rGO nanocomposite antibacterial material; and (2) antibacterial board comprising a substrate and a coating compounded on the surface of the substrate, where the coating is formed by the antibacterial coating.