Catalyst for catalytic combustion of halogen-containing volatile organic compounds and application of catalyst

The invention relates to a catalyst for catalytic combustion of halogen-containing volatile organic compounds, the catalyst comprises an integral or granular carrier, and a high-viscosity coating layer, an auxiliary agent and an active component coating layer which are loaded on the carrier, the high-viscosity coating layer is obtained by coating an inorganic oxide carrier with alumina sol and then roasting, the active component is precipitated on the surface of the high-viscosity coating layer by adopting an oxidation-reduction method, the active component comprises transition metal and precious metal, the transition metal is iron and manganese, and the precious metal is ruthenium. The oxidation-reduction method comprises the following steps: (a) preparing a precursor aqueous solution; (b) precipitating a coating layer by an oxidation-reduction method; (c) adding an active component ruthenium trichloride; and (d) oxidizing, reducing and precipitating the active component by hydrogen peroxide. The catalyst ha