▎ 摘　　要

NOVELTY - Graphene oxide-carbon nanotubes (rGO-CNT) three-dimensional composite conductive film comprises carbon nanotubes interspersed reduced graphene oxide layer gap and crossed each other, to obtain porous three-dimensional framework. USE - The composite conductive film is useful for truncating salt (claimed). ADVANTAGE - The composite conductive film has higher specific capacitance and conductivity, high mechanical strength and stability, improves salt truncating rate by applying voltage. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for: (1) preparing graphene oxide-carbon nanotubes (rGO-CNT) three-dimensional composite conductive film comprising (A) dispersing graphene oxide and carbon nanotubes in water, to obtain mixed aqueous dispersion, (B) taking microporous membrane as a substrate, depositing step (A) obtained mixed aqueous dispersion on substrate, drying graphene oxide-carbon nanotube composite film, and (C) reducing step (B) obtained graphene oxide-carbon nanotube composite film, to obtain graphene oxide-carbon nanotube composite film three-dimensional composite conductive film; and (2) desalinating graphene oxide-carbon nanotubes (rGO-CNT) three-dimensional composite conductive film comprising taking graphene oxide-carbon nanotubes (rGO-CNT) three-dimensional composite conductive film as working electrode, placing counter electrode and working electrode in a saline solution, applying a voltage on working electrode, trapping salt ions.