Photocatalytic Filter Mesh: Its Advantages and Key Components

      Photocatalytic Filter It can be widely applied in air purification, household appliances, and filtration in special environments, such as residential, catering, office, shopping mall, vehicular, and healthcare settings—particularly in air conditioners, air purifiers, central air-conditioning supply vents, and automotive air-purification systems. It delivers excellent purification performance, low energy consumption, no secondary pollution, and is reusable, making it an ideal next-generation air-purification filter product.

The working principle of the photocatalytic filter: Photocatalyst (nano-sized titanium dioxide) coated on the surface of the photocatalytic filter is excited by ultraviolet light, causing valence-band electrons to jump to the conduction band and generating corresponding holes (h⁺) and photogenerated electrons (e⁻). Upon contact with oxygen and water in the air, highly oxidizing reactive oxygen species and hydroxyl radicals are produced at the surface. As air passes through the photocatalytic filter, these surface-reactive oxygen species and hydroxyl radicals capture electrons from harmful organic compounds such as formaldehyde, benzene, and TVOCs, altering their molecular structures and thereby decomposing these pollutants while simultaneously removing contaminants and odors. Bacteria and other microorganisms are oxidized and broken down into harmless CO₂ and H₂O, achieving both air purification and the decomposition of harmful organic substances, all while providing a bactericidal effect. Moreover, since photocatalysts act as mediators that convert light energy into chemical energy without being consumed or participating directly in the reaction, as long as there is light, the filter can operate continuously for an extended period.

    Photocatalytic Filter The three elements of:

1. Photocatalyst: For the same filter element, the higher the quality of the photocatalytic material used, the greater the purification efficiency. Key technical parameters include the nanoparticle size (secondary particle size) of titanium dioxide, its specific surface area, and its adhesion properties.

2. Filter Media: As the support substrate for photocatalyst immobilization, the key factor—according to the photocatalytic mechanism—is the specific surface area of the filter media. For filter media of the same dimensions, a larger specific surface area allows more photocatalyst to be immobilized, enabling air to pass through. The greater the contact between the air and the photocatalyst during filtration, the better the performance. In addition, the air permeability and mechanical strength of the filter media must also be considered.

3. Ultraviolet Light: The photocatalytic effect is directly proportional to the intensity of UV illumination—higher intensity yields better performance. However, the effectiveness varies significantly across different UV wavelength bands. Moreover, since UV lamps degrade over time, their service life is an important performance indicator.

    Photocatalytic Filter Advantages:

1. Guangzhi Zi photocatalyst is a well-known brand in the photocatalysis industry, featuring titanium dioxide with a particle size of 3 nanometers, a specific surface area of 336.77 m²/g, and strong adhesion!

2. Made from special ceramic sheets, this material boasts the largest specific surface area among currently available filter media. It features a three-dimensional network structure with a porosity as high as 95%, excellent permeability, a large specific surface area for photocatalytic reactions, and high photocatalytic efficiency. Moreover, thanks to the ceramic’s outstanding stability—resistance to acids and alkalis, dimensional stability, and high-temperature tolerance—the filter element has a long service life!

3. Equipped with a dedicated UV lamp featuring a UV wavelength range that delivers higher illuminance and lower attenuation at the same power level!

4. Complete range of specifications; custom-made to customer requirements!