▎ 摘　　要

NOVELTY - A modified three-dimensional graphene oxide composite material preparation method involves mixing dicyclopentadienyl iron grafting chitosan, carbon nano-tube and enzyme. The mixed material is dissolved in acetic acid buffer solution. The resulted mixture is deposited on a surface of a three-dimensional graphene cathode composite electro-deposition film to obtain a finished product. USE - Method for preparing a modified three-dimensional graphene oxide composite material. ADVANTAGE - The method enables preparing a modified three-dimensional graphene oxide composite material in an effective manner. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a modified three-dimensional graphene oxide composite material.