Preparation method and application of biomass carbon coated heteropolyacid hydrogen salt catalyst

The invention discloses a preparation method and application of a biomass carbon-coated heteropolyacid hydrogen salt catalyst, the preparation method is carried out in a closed container, heteropolyacid hydrogen salt, a biomass polysaccharide precursor and a polar organic solvent are added, a reaction is carried out at 120-180 DEG C, and the biomass carbon-coated heteropolyacid hydrogen salt catalyst is obtained through drying. The method is simple in preparation process, controllable in condition, stable in composite structure and low in cost; the prepared biomass carbon coated heteropolyacid hydrogen salt catalyst has strong oxidizing property and strong reducing property, and can also regulate proton transfer, so that the biomass carbon coated heteropolyacid hydrogen salt catalyst has good photocatalytic performance and can be used for photocatalytic oxygen reduction and oxidative removal of formaldehyde in air. 本发明公开了一种生物质碳包覆杂多酸氢盐催化剂的制备方法和应用，本发明制备在密闭容器中进行，加入杂多酸氢盐、生物质多糖前驱体和极性有机溶剂，在120～180℃反应后，经干燥得到生物质碳包覆杂多