▎ 摘　　要

NOVELTY - Modified graphene oxide film (GO-CNT-Me) is prepared modifying a graphene oxide (GO) film by melamine (Me) and acidic oxidized carbon nanotube (CNT). USE - The modified graphene oxide film is useful in a membrane separation technique and for dispensing uranium in an aqueous solution (all claimed). ADVANTAGE - The modified graphene oxide film is prepared conveniently, has increased stability and layers, increases selection penetrant ability of water flux and ions of the graphene oxide film, and separates uranium, and monovalent and/or divalent metal ions in the wastewater. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following: (1) method for preparing the modified graphene oxide film, involves preparing acidified carbon nanotubes, configuring to acidify the carbon nanotube solution, mixing the acidified carbon nanotube solution with a melamine solution and a graphene oxide solution, performing suction filtration to obtain a complex film, adding concentrated hydrochloric acid in a dropwise manner into the complex film, after completion of crosslinking, drying and washing to obtain product; and (2) use of the modified graphene oxide film, in a membrane separation technique.