▎ 摘　　要

NOVELTY - Antibacterial film material comprises mixing graphene oxide and composite hydrotalcite in a mass ratio of 1-4:1 to obtain colloidal solution as raw material, and casting the colloidal solution on penicillin anion intercalating layer to obtain product. USE - The film material is useful as antibacterial material and antibacterial coating layer (all claimed). ADVANTAGE - The film material has ordered structure and slow release property. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for method for preparing the film material, which involves obtaining the above-mentioned colloidal solution, and casting on the penicillin anion intercalating layer having magnesium and aluminum in a molar ratio of 2.