▎ 摘 要
NOVELTY - Preparing graphene oxide composite material, comprises culturing mixed solution in which the graphene oxide and the microorganism are dispersed, and chemically mixing the microorganism with the graphene oxide to form the graphene oxide composite material; where the mixed solution further contains a surfactant. USE - The method is useful for preparing graphene oxide composite material (claimed). DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for sewage treatment method, comprising: mixing a graphene oxide composite material with sewage.