▎ 摘　　要

NOVELTY - Preparing a nitrogen-doped reduced graphene oxide nano-composite involves mixing chitosan, glacial acetic acid and water, to obtain a chitosan acetic acid aqueous solution. The graphene oxide and water ae mixed to obtain a graphene oxide aqueous dispersion. The chitosan acetic acid aqueous solution and the graphene oxide aqueous dispersion are mixed, and lyophilized, to obtain a powder of chitosan and graphene oxide, and subjected the powder of chitosan and graphene oxide to a thermal reduction reaction, to obtain the nitrogen-doped reduced graphene oxide nano-composite. USE - Method for preparing nitrogen-doped reduced graphene oxide nano-composite for treatment of phenolic wastewater (claimed). ADVANTAGE - The method makes it possible to directly prepare nitrogen-doped reduced graphene oxide nano-composite through a one-step thermal reduction reaction, which effectively improves the removal efficiency of the nitrogen-doped reduced graphene oxide nano-composite on phenolic pollutants, and also provides a convenience for subsequent processing condition.