Air quality is a growing concern in modern society, with pollutants and pathogens posing significant risks to health and the environment. Titanium dioxide (TiO₂) photocatalysis emerges as a cutting-edge technology to combat these challenges, offering a sustainable and effective solution for purifying air.

When TiO₂ is exposed to the natural light or specific wavelengths of visible light, it triggers a photocatalytic reaction that generates reactive oxygen species (ROS). These ROS, including hydroxyl radicals and superoxide anions, are highly effective at breaking down organic and inorganic pollutants, as well as neutralizing airborne pathogens such as bacteria, viruses, and fungi. TiO₂ photocatalysis oxidizes harmful volatile organic compounds (VOCs), nitrogen oxides (NOx), and particulate matter (PM) into less harmful substances like water and carbon dioxide. This significantly reduces the presence of smog-forming and toxic agents in the air 

By damaging the cell membranes and genetic material of microorganisms, TiO₂ photocatalysis effectively sterilizes the air, offering protection against respiratory infections and other airborne diseases. Coating surfaces with TiO₂ not only purifies the surrounding air but also prevents the accumulation of dirt, bacteria, and biofilm, maintaining cleanliness in various environments.

TiO₂ photocatalysis is environmentally friendly, relying on natural light or energy-efficient LED systems to drive the reaction. It is a low-maintenance and cost-effective technology that does not produce harmful byproducts, making it a viable choice for long-term air quality improvement.

By integrating TiO₂ photocatalysis into our everyday lives, we can achieve cleaner, safer air, contributing to healthier communities and a more sustainable planet.