Preparation method of manganese oxide molecular sieve composite filter material for treating diclofenac in water

The invention belongs to the technical field of water treatment, and discloses a preparation method of a manganese oxide molecular sieve composite filter material for treating diclofenac in water. The method comprises the following steps: (1) mixing potassium permanganate and manganese acetate, uniformly grinding, pouring the obtained mixed powder into a closed container, cleaning the obtained black product, carrying out suction filtration, and drying the obtained product to obtain a manganese oxide molecular sieve; and (2) adding the manganese oxide molecular sieve into an ethanol aqueous solution, carrying out ultrasonic treatment, adding ammonia water, stirring, cleaning, carrying out suction filtration, adding a product into the ethanol aqueous solution, carrying out ultrasonic treatment, adding 3-aminopropyltriethoxysilane, stirring, cleaning the product, carrying out suction filtration, and carrying out vacuum freeze drying to obtain the amino-modified manganese oxide molecular sieve composite filter ma