▎ 摘　　要

NOVELTY - Preparing two/one-dimensional heterogeneous nano-channel membrane involves dissolving graphene oxide in the piperazine aqueous solution under ultrasonic at room temperature, and uniformly dispersing to obtain first solution. The first solution is added into the upper layer of porous alumina thin film. The solvent is evaporated at room temperature, a first composite film having a graphene oxide film layer to obtain porous aluminum oxide film layer. The solution of trimesoyl chloride is added to the upper surface of the graphene oxide film layer of the first composite film, and dried to obtain two-dimensional/one-dimensional heterogeneous nanochannel membrane. USE - Method for preparing two/one-dimensional heterogeneous nano-channel membrane in salt difference energy conversion (claimed).