▎ 摘　　要

NOVELTY - Preparing Fenton-like composite catalyst membrane material involves mixing, modifying cellulose nanofibril (CNF) and graphene oxide at room temperature with mass ratio of 1:1-7:13 to obtain a flexible graphene film, preparing a mixed aqueous solution containing ammonium hexafluorotitanate with concentration of 0.1-0.2 mol.liter-1and boric acid with concentration of 0.3-0.4 mol.liter-1, adding anatase-type titanium dioxide nanocrystals at 1.5-2.0 g/l, filtering to obtain a reaction solution for deposition after stirring, immersing the flexible graphene film in the reaction solution for deposition, depositing the titanium dioxide film by standing at 40-60℃, taking out after 6-8 hours, rinsing with deionized water, and drying in an oven at 60-80℃ USE - Method for preparing Fenton-like composite catalyst membrane material used for preparing product for degrading organic pollutant in water by photocatalytic oxidation (claimed). ADVANTAGE - The prepared catalyst has larger specific surface area and reaction activity, increased reaction site, enhanced catalytic efficiency, reduced leaching of cobalt and iron in the reaction process, and enhanced loading effect and the dispersibility of the catalyst on the back light surface. DETAILED DESCRIPTION - Preparing Fenton-like composite catalyst membrane material involves mixing, modifying cellulose nanofibril (CNF) and graphene oxide at room temperature with mass ratio of 1:1-7:13 to obtain a flexible graphene film, preparing a mixed aqueous solution containing ammonium hexafluorotitanate ( (NH4)2TiF6) with concentration of 0.1-0.2 mol.liter-1and boric acid (H3BO3) with concentration of 0.3-0.4 mol.liter-1, adding anatase-type titanium dioxide nanocrystals at 1.5-2.0 g/l, filtering to obtain a reaction solution for deposition after stirring, immersing the flexible graphene film in the reaction solution for deposition, depositing the titanium dioxide film by standing at 40-60℃, taking out after 6-8 hours, rinsing with deionized water, drying in an oven at 60-80℃, calcining at 200-400℃ for 2 hours to obtain titanium dioxide (TiO2)/graphene film, preparing a precursor solution containing ferric nitrate and cobalt nitrate, where the mol ratio of cobalt (Co):iron (Fe) is 1:1-1:2, and the nitrate concentration in the precursor solution is 0.05 mol/l, adding 100 g/l γ-aluminum oxide for in-situ impregnation, loading to obtain mixed solution, dispersing ultrasonically the obtained mixed solution to uniformly disperse, taking the TiO2/graphene film as the base, adding the mixed solution, standing for 8-12 hours to make it uniformly deposited on the other side of the graphene film, compacting, drying, calcining at 250-350℃, and washing with absolute ethanol to obtain ultraviolet light synergistic Fenton-like composite catalyst membrane material. An INDEPENDENT CLAIM is included for an ultraviolet light synergistic Fenton-like composite catalyst membrane material obtained by the preparation method.