Preparation method and application of catalyst for purification treatment of volatile organic compounds (VOCs)

The invention provides a preparation method of a catalyst for catalytic purification treatment of volatile organic compounds (VOCs). The preparation method comprises the following steps: carrying out hydro-thermal reaction on MnCO3 and (NH4)2S2O8 in a sulfuric acid solution, sequentially washing and centrifuging an obtained product to obtain a solid product and drying the solid product to obtain alpha-MnO2. The application also provides alpha-MnO2 prepared by adopting the scheme. Obtained alpha-MnO2 has a shape of tube brush. The application further provides application of alpha-MnO2 in catalytic purification of VOCs. The prepared catalyst has the advantages of simple preparation method, convenience in control, low cost and the like. Prepared alpha-MnO2 can be used as the catalyst for catalytic purification of VOCs, and has good low-temperature catalytic oxidation performance. 本发明提供了种用于挥发性有机气体VOCs催化净化处理的催化剂的制备方法，包括以下步骤：将MnCO与(NH)SO在硫酸溶液中进行水热反应，将得到的产物依次经过洗涤与离心，得到固体产物，将所述固体产物进行干燥，得到α-MnO。本申请还提供了采用上述方案制备的α-MnO，其