▎ 摘　　要

NOVELTY - Graphene oxide sea water desalting composite film comprises microporous ceramic layer having 1-10 mu m pore size, graphene oxide layer having 1-5 nm pore size, and silica phase layer having greater than or equal to 20 mu m pore size. USE - Graphene oxide sea water desalting composite film. ADVANTAGE - The material has high desalting rate and long useful life. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation of graphene oxide sea water desalting composite film comprising preparing ceramic slurry, coating on smooth substrate, roller pressing, drying, curing to form microporous ceramic layer, peeling, preparing graphene oxide solution, applying to ceramic layer, vacuum filtering to obtain graphene oxide layer, preparing silica coating, coating on graphene oxide layer, heating, aging, and drying.