Photocatalytic coatings are specialized materials that utilize the energy from light (typically sunlight or UV light) to accelerate chemical reactions without being consumed in the process. These coatings are often applied to surfaces to impart self-cleaning, antimicrobial, and air-purifying properties. They contain photocatalysts, such as titanium dioxide (TiO2), which are activated by light to produce reactive species like hydroxyl radicals and superoxide ions.
