The common crystal phase structures of characteristics of cosmetic grade titanium dioxide are altogether three types: characteristics of cosmetic grade titanium dioxide(Anatase) Rutile characteristics of cosmetic grade titanium dioxide(Rutile) and titanium plate characteristics of cosmetic grade titanium Three types of dioxide(brookite). Among them, perovskite is relatively unstable and not easy to prepare.

The photocatalytic activity is generally in the order of anatase > rutile > SLATE. Although the band gap width of rutile is 3.0 eV, which is less than 3.2 eV of anatase, anatase has more vacancies and defects, and the connection mode of Ti-O6 octahedron determines its higher activity. However, some people have made rutile with good photocatalytic performance (the influencing factors of this photocatalytic performance are related, such as specific surface area, band gap width, Defect concentration, etc.

Generally, anatase is suitable for use as a pigment, mainly because its relative density is small and it is easy to prepare.

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