Method for loading MnOx-F doped TiO2 active component on cordierite and prepared MnOx-F doped TiO2-cordierite composite catalyst

The invention discloses a method for loading a MnOx-F doped TiO2 active component on cordierite. The method comprises the following steps: firstly, preparing MnOx-F doped TiO2 active component composite sol through a sol-gel method, and regulating the sol viscosity by controlling the using amounts of acetic acid and polyethylene glycol; performing acid-washing treatment on honeycomb ceramics to increase the specific surface area and surface acid site of the honeycomb ceramics; performing dipping under the assistance of ultrasonic vibration to realize loading of the MnOx-F doped TiO2 active component on the honeycomb ceramics, and performing drying and microwave firing after dipping to enhance mutual actions among catalyst components and between the catalyst components and the ceramics, and meanwhile distribute a catalyst in surface pore channels of the honeycomb ceramics more uniformly. By adopting the method, the defects of non-uniform loading and poor loading strength in a technology for loading denitration active components on the cordierite can be overcome. The method is suitable for popularization and application.