Ultrathin copper-manganese bimetallic MOFs denitration catalyst as well as preparation method and application thereof

The invention provides a preparation method of an ultrathin copper-manganese bimetallic MOFs denitration catalyst. The preparation method comprises the following steps: S1, mixing dimethylformamide and absolute ethyl alcohol to form a mixed solution; S2, adding terephthalic acid into the mixed solution prepared in the step S1, then adding copper chloride and manganese chloride into the mixed solution, adding triethanolamine after the copper chloride and the manganese chloride are dissolved, and then conducting ultrasonic treatment to obtain sediment, wherein the molar ratio of the copper chloride to the manganese chloride is 1:1, and the ratio of the copper chloride and the manganese chloride to the terephthalic acid is 1:1; and S3, carrying out centrifugal ethanol washing on the precipitate obtained in the step S2, and then conducting drying in a drying oven to obtain the ultrathin copper-manganese bimetal MOFs denitration catalyst. The preparation method disclosed by the invention has the beneficial effects