▎ 摘　　要

NOVELTY - Preparing MXene-reduced porous graphene oxide (r-HGO) composite membrane with high flux and high removal rate involves adding graphite to mixed solution of sodium nitrate and concentrated sulfuric acid, stirring, adding potassium manganate heating up, stirring, adding hydrogen peroxide, centrifuging the obtained graphene oxide solution, sonicating, freezing, drying to obtain graphene oxide solid, preparing the product into a solution, adding hydrogen peroxide, stirring in an oil bath to obtain a porous graphene oxide solution, adding titanium aluminum carbide to the mixed solution of hydrochloric acid and lithium fluoride to reacting, shaking, centrifuging to obtain monolayer MXene nanosheet to obtain a solution with deionized water, mixing the two solution with specific certain ratio, loading on the surface of the microfiltration membrane, reducing the membrane with hydroiodic acid to obtain MXene/reduced porous graphene oxide (r-HGO) composite membrane. USE - Method for preparing MXene-reduced porous graphene oxide (r-HGO) composite membrane with high flux and high removal rate. ADVANTAGE - The prepared MXene/r-HGO composite membrane has traps and absorbs dye pollutant in water through size selection effect and electrostatic effect, and achieves high dye trapping effect under high flux by adjusting the doping ratio of the two material and with the increase of r-HGO doping ratio, the dye retention effect is obviously improved, and the method is simple and easy to operate and easy to use on a large scale, which is beneficial to popularization. DESCRIPTION OF DRAWING(S) - The drawing shows a single layer TEM image of GO and MXene (data obtained in the analysis and test center of Beijing Institute of Science and Technology).