PREPARATION METHOD FOR CEO2-MNO2 COMPOSITE CATALYST WITH EFFICIENT PHOTOTHERMAL CONCERTED CATALYTIC PURIFICATION FUNCTION FOR VOCS

摘要

A preparation method for CeO2-MnO2 composite catalyst with an efficient photothermal concerted catalytic purification function for VOCs comprises the following steps : 1) weighing Ce(III) salt and KMnO4, and stirring by utilizing a magnetic force to obtain a mixed solution; 2) transferring the mixed solution into a reaction kettle to carry out hydrothermal oxidation reduction reaction; and 3) after the reaction is ended and the reaction kettle is cooled to the room temperature, taking out sediments in an inner polytetrafluoroethylene container, and filtering, cleaning and drying the sediments. The preparation method has the following advantages: the process is simple and easy to be industrialized, and the production cost is low; the prepared catalyst has high catalytic activity.