▎ 摘　　要

NOVELTY - A controllable-interlamellar-spacing stable graphene oxide film comprises partially reduced graphene oxide sheet-piled layer or graphene oxide and partially reduced graphene oxide sheet-piled layer. USE - Controllable-interlamellar-spacing stable graphene oxide film. ADVANTAGE - The method can enhance stability of graphene oxide film in water, acid solution or alkali solution without blocking the interlamellar transmission channels of film or destroying the accumulated lamellar structure. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation of graphene oxide film comprising uniformly dispersing partially reduced graphene oxide in water, or uniformly dispersing graphene oxide and partially reduced graphene oxide in water to obtain 0.05-0.2 mg/mL film casting solution, filtering through substrate film to obtain wet-state graphene oxide film on substrate film, putting wet-state graphene oxide film together with substrate film into drying device, drying to 20-30 degrees C at relative humidity of 25-100%, and peeling off graphene oxide film from substrate film.