Ultrafine TiO2 acts as a photocatalyst in the presence of ultraviolet light that initiates the reaction with atmospheric pollutants. Some ultrafine TiO2 grades show activity also in the visible ...

Titanium dioxide (TiO 2) nanoparticles have a high refractive index (n = 2.4), making them ideal for various applications, including medicines, coatings, inks, plastics, food, cosmetics, and textiles.