With the ongoing worldwide pandemic, air purification and disinfection have become crucial for maintaining a healthy living environment. To address this issue, photocatalytic technology has garnered attention due to its potential to effectively remove pollutants and kill harmful bacteria and viruses.
Two specific wavelengths of light, 365nm and 385nm, can be used to stimulate photocatalysts for air purification and disinfection. Photocatalysts are materials that, when stimulated by these wavelengths, can break down pollutants and kill microorganisms through oxidation and reduction reactions. These wavelengths are in the ultraviolet (UV) range and are capable of damaging DNA and cellular structures of microorganisms, causing their death.
The photocatalytic process has been proven to effectively break down organic pollutants such as volatile organic compounds (VOCs), formaldehyde, and even odor-causing substances. Additionally, photocatalysts can help to remove hazardous particles, including nitrogen oxides (NOx) and carbon monoxide (CO), commonly found in vehicle exhaust and industrial emissions.
Furthermore, photocatalytic technology has been used to address the current pandemic by deactivating SARS-CoV-2, the virus that causes COVID-19. Photocatalysts containing silver and titanium dioxide have been shown to effectively kill the virus within 30 minutes of exposure to UV light.
In conclusion, utilizing 365nm and 385nm wavelengths to stimulate photocatalysts for air purification and disinfection is a promising technology for improving indoor air quality and promoting public health. By reducing airborne pollutants and killing harmful microorganisms, this technology can create a safer environment for individuals to live, work, and play.
