▎ 摘　　要

NOVELTY - Graphene filter film comprises first non-woven fabric layer, a graphene layer and second non-woven fabric layer arranged in sequentially. The layers are embedded with each other at connection position, and the content of graphene in the graphene layer is ≮90 %. USE - Used as graphene filter film. ADVANTAGE - The graphene filter film can increase contact area of graphene with outside environment, so that the adsorption and filtration functions of graphene can be better exerted. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing graphene filter film, comprising (1) preparing the spinning solution for forming first non-woven fabric layer and second non-woven fabric layer, (2) forming first non-woven fabric layer and second non-woven fabric layer on the substrate by dry spinning method, forming a graphene layer in the way of spraying graphene layer material, locating the graphene layer on first non-woven fabric layer and second non-woven fabric layer and each layer is embedded at the connecting position, and (3) drying to obtain the graphene filter film.