What are the application scenarios for ozone decomposition catalysts

The core function of ozone decomposition catalyst is to efficiently convert ozone (O₃), a highly oxidizing and potentially harmful substance, into harmless oxygen (O₂). They are widely used in the following five major scenarios:

I. Air Purification and Indoor Environment

1. Central air conditioning or fresh air systems in densely populated places such as subway stations, shopping malls, and office buildings, used to decompose residual ozone generated by equipment such as photocopiers, printers, and electrostatic precipitators, preventing respiratory irritation and odors.

 2. Air conditioning systems in transportation vehicles such as airplanes, high-speed trains, and ships, ensuring cabin air quality.

II. Industrial Waste Gas Treatment

1. Ozone-containing exhaust gases emitted from industries such as petrochemicals, chemicals, electronics, and coatings are passed through catalyst beds before emission, reducing ozone concentrations below environmental standards to prevent pipeline corrosion and secondary photochemical pollution.

 2. "Ozone destroyers" in ozone generators used in chlor-alkali and semiconductor cleaning industries, ensuring the safety of the workshop and surrounding environment.

III. Water Treatment and Ozone Exhaust Gas Destruction

1. In the deep treatment of tap water and sewage, high-concentration ozone exhaust gas escaping from the water after ozone oxidation is decomposed by a catalyst to achieve compliant emissions, preventing ozone exceedances in the factory area and surrounding areas.

 2. In industrial circulating cooling water systems, after ozone sterilization, a catalyst decomposes residual ozone, protecting metal pipes and seals from strong oxidative corrosion.

IV. Medical and Sanitary Disinfection

1. In hospital operating rooms, sterile wards, biosafety cabinets, etc., after ozone disinfection, the ventilation system has an embedded catalyst layer to quickly remove residual ozone, protecting medical staff and patients.

 2. In cleanrooms of the pharmaceutical and food industries, catalysts are also used for "harmless" treatment after ozone disinfection to meet GMP requirements.

V. Emerging Applications in High Humidity or Special Operating Conditions

1. Using hydrophobically modified or core-shell structured nanocatalysts, stable operation is possible under RH>90% conditions, applicable to coastal high-humidity areas, combined chimney and tower emission outlets, and ozone treatment of landfill leachate.

 2. Room-temperature and high-humidity resistant catalysts have been applied in air purifiers, sterilization cabinets, printers, and the terminal of UV photolysis equipment to achieve the continuous decomposition of low-concentration ozone.

With increasingly stringent environmental standards and advancements in materials technology, ozone decomposition catalysts are developing towards "low-temperature high efficiency, moisture resistance and toxicity resistance, and modularity," and their application scenarios are continuously expanding.