▎ 摘　　要

NOVELTY - The method involves prefabricating a microporous base film layer on a porous support layer. Graphite vapor is anchored on a surface of the microporous base film layer and an aperture on the microporous base film layer, where graphene ultra-thin coating is formed on the microporous base film layer. The graphene ultra-thin coating is provided to form a stable structure under a low temperature and normal pressure environment. The porous support layer, the microporous base film layer, and a multi-layer composite nano-diamond film graphene ultra-thin coating structure are formed. USE - Method for preparing a nanometer diamond film based on graphene anchoring technology in various industries. Uses include but are not limited to water treatment field, petroleum industry, chemical industry, food industry, and biological and medical industry. ADVANTAGE - A nano-diamond film has good mechanical support, separation performance, and anti-pollution ability. The method has simple manufacturing technique and low manufacturing cost. DESCRIPTION OF DRAWING(S) - The drawing shows a flow diagram illustrating a method for preparing a nanometer diamond film based on graphene anchoring technology. (Drawing includes non-English language text).