Main components of ozone destruction catalysts

The main components of ozone decomposition catalysts typically include compounds of transition metal oxides (such as manganese, copper, iron, cobalt, and nickel), noble metals (such as platinum and palladium), and rare earth elements (such as cerium and lanthanum). These components form highly efficient catalytic systems by being supported on carriers (such as activated carbon, molecular sieves, alumina, or titanium dioxide).

Core Active Components

• Transition Metal Oxides: Manganese oxide (MnO₂) is the most common ozone decomposition catalyst, offering low cost and high activity; copper oxide (CuO) and iron oxide (Fe₂O₃) are suitable for specific pH environments.
• Noble Metals: Platinum (Pt) and palladium (Pd) have extremely high catalytic efficiency but are expensive, and are mostly used in medical or high-precision purification applications.
• Rare Earth Elements: Cerium (Ce)'s variable valence properties enhance its redox capabilities and it is often used in combination with other metals.

Carrier Materials

• Activated Carbon: Provides a high specific surface area but is easily oxidized and depleted by ozone.
• Molecular sieves: Improve ozone contact efficiency through regularized pores and exhibit good water resistance.

Auxiliary components

• Binders (such as silica sol) are used to immobilize the active components.
• Co-catalysts (such as tungstates) can regulate the electron transfer rate.