The invention provides a double-
metal integral type
plasma catalyst as well as a preparation method and application of the double-
metal integral type
plasma catalyst and belongs to the technical field of
plasma catalysts. The catalyst is prepared by adopting an excessive immersion method; the catalyst is prepared through the following steps: pre-treating a carrier, and
drying and
roasting; taking water as a
solvent and adding gamma-Al2O3
powder and
active components; ultrasonically stirring; putting pre-treated
cordierite honeycomb ceramic into
slurry and carrying out ultrasonic treatment;
drying and
roasting to obtain the double-
metal integral type plasma catalyst. According to the double-metal integral type plasma catalyst, the water is used as the
solvent in a preparation process, so that no environment
pollution is caused; a silica
sol solution is used as a bonding agent and a dispersant, and the excessive immersion method is adopted, so that the
active components can be relatively uniformly dispersed on the surface of the carrier, and furthermore, the degradation efficiency of volatile pollutants is easy to improve. The technology provided by the invention is simple to operate, the raw materials are cheap, preparation conditions are moderate and no
pollution is caused in the process, so that the technology is a novel environment-friendly technology capable of easily popularizing industrialization and marketization.