Titanium dioxide, also known as titanium(IV) oxide or titania, is the naturally occurring oxide of titanium.Titanium dioxide is an odorless white powder.
Titanium dioxide (TiO2, titania) is one of the most important materials having various important applications, such as water and air purification, self-cleaning materials and photovoltaic cells. TiO2 is an n-type semiconductor having a wide band gap (3.2eV for anatase and 3.0eV for rutile).