▎ 摘　　要

NOVELTY - Preparing self-supporting transparent conductive graphene film comprises e.g. carrying out Langmuir-Blodgett method to obtain aqueous graphene oxide layer, vertically removing the layer from the surface of graphene oxide A using filter, soaking obtained material I in organic amine aqueous solution, covalently attaching surface of graphene A to organic amine layer, preparing filter by taking graphene oxide, and organic amine composite material II, where the organic amine is macromolecule polymer, or small molecule organic matter, the each molecule carries two or more amino groups. USE - The method is useful for preparing self-supporting transparent conductive graphene film (claimed). ADVANTAGE - The self-supporting transparent conductive graphene film has simple preparation procedure, high light transmittance, good flexibility and conductivity; and is large and thin. DETAILED DESCRIPTION - Preparing self-supporting transparent conductive graphene film comprises (i) carrying out Langmuir-Blodgett method to obtain aqueous graphene oxide layer; (ii) vertically removing the layer from the surface of graphene oxide A using filter, to obtain filter and graphene A composite material I, where the filter is nitrocellulose and acetic acid fiber made of aqueous microporous membrane; (iii) soaking step (ii) obtained material I in organic amine aqueous solution, covalently attaching surface of graphene A to organic amine layer, preparing filter by taking graphene oxide, and organic amine composite material II, where the organic amine is macromolecule polymer, or small molecule organic matter, the each molecule carries two or more amino groups, or imino groups; (iv) removing aqueous surface of graphene layer B from obtained material II, drying, to obtain organic amine layer and upper and lower layers of graphene, crushing graphene B, to obtain covalently attached sandwich composites; (v) repeating steps (ii) and (iv), placing organic amines and number of layers of sandwich composites covalently to graphene oxide; (vi) soaking obtained moistened sandwich composite materials in aqueous acetone solution to soften the material, soaking with acetone material to filter completely, to obtain material IV; and (vii) reducing graphene oxide in reduced material IV, to obtain self-supporting transparent conductive graphene film. An INDEPENDENT CLAIM is also included for self-supporting transparent conductive graphene film, prepared as mentioned above.