▎ 摘　　要

NOVELTY - Preparing graphene and boron nitride composite material comprises (i) dispersing graphene oxide in ethanol solution, then adding suitable amount of boric acid and melamine, and ultrasonically dispersing uniformly, (ii) adding suitable amount of mineralizing agent into uniformly mixed solution, uniformly stirring to promote formation of the boron nitride instead of forming the doping state, and (iii) centrifuging uniformly mixed solution, drying, then grinding into powder, and placing in the sintering furnace for sintering under the protection atmosphere to obtain the final product. USE - The composite material is useful in adsorption of pollutant, preferably adsorption of organic pollutant including adsorption of methyl orange in wastewater from printing and dyeing industry (claimed). DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for graphene and boron nitride composite material obtained by above method.