▎ 摘　　要

NOVELTY - Preparing carbon-based nanofiltration membrane involves mixing an inorganic strong acid solution and graphene oxide, performing thermal digestion, and obtaining digested graphene oxide after solid-liquid separation. The molar concentration of hydrogen ions in the strong inorganic acid solution is greater than or equal to 10 mol/L. The decomposed graphene oxide is dispersed in water to obtain a decomposed graphene oxide suspension. The suction filtration is performed on the digested graphene oxide suspension by using a basement membrane to obtain the carbon-based nanofiltration membrane. USE - Method for preparing carbon-based nanofiltration membrane for removing uranyl ions in aqueous solution (claimed). ADVANTAGE - The prepared carbon-based nanofiltration membrane quickly and efficiently intercept uranyl ions in aqueous solution, and has high retention rate, high water flux and good stability for uranyl ions, and has a good application prospect in removing uranyl ions in aqueous solution. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following: 1. a carbon-based nanofiltration membrane, which includes a base film and a digested graphene oxide carbon film arranged on the surface of the base film; and 2. a carbon-based nanofiltration membrane used in removing uranyl ions in aqueous solution.