The application discloses a Ce SA-MXene
composite material and a preparation method and application thereof, the Ce SA-MXene
composite material is formed by anchoring single-atom
cerium on MXene, and the anchoring amount of the single-atom
cerium accounts for 1-50 wt% of the total
composite material; the preparation method comprises the following steps: adding
cerium salt into a MXene suspension, fully mixing, filtering, washing and
drying the obtained
mixed solution, and then performing step-by-step
calcination treatment, and the Ce SA-MXene composite material is obtained after the end of the step-by-step
calcination treatment. The Ce SA-MXene composite material synthesized by the application has a large specific surface area, the
metal cerium is dispersed in the form of atoms, the
metal active sites are fully exposed, the reactivity and stability of the Ce SA-MXene composite material are enhanced by increasing the active sites, the Ce SA-MXene composite material is applied to the field of
water pollution as a catalyst, can efficiently adsorb pollutants, such as
artificial sweetener aspartame, can also realize recycling of the
metal cerium, has the advantages of high
catalytic efficiency, high use value, easy recycling and the like, and has a wide application prospect.