Preparation of copper and cobalt codoped manganese-based catalyst and application of catalyst to low-concentration ozonolysis

The invention discloses preparation of a copper and cobalt codoped manganese-based catalyst with high stability and water-resistant capability and application of the catalyst to low-concentration ozonolysis, and belongs to the technical field of ozone purification catalysts. An efficient water-resistant ozonolysis catalyst is prepared by using copper, cobalt and manganese as active ingredients bya hydro-thermal method. In the preparation process, a certain quantity of potassium permanganate and manganese acetate are respectively dissolved in de-ionized water to form a uniform solution; then,a manganese acetate solution is slowly added into the potassium permanganate solution; uniform stirring is performed to form a uniform solution; copper nitrate solid and cobalt nitrate solid are addedinto the uniform solution; ultrasonic uniform stirring is performed; then, the solution is transferred into a hydrothermal reaction kettle; the temperature is regulated to be 150 DEG C; reaction is performed for 2h; after the