Titanium dioxide is widely used as pigment for paint. Photo-induced reaction of titanium dioxide has been well known in the paint industry not for its application to self-cleaning, but because it causes decomposition of organic binders, which is problematic. The degradation of paint by photocatalysis of TiO2 is called chalking, and constitutes a serious problem in the development of durable industrial paints. In an effort to avoid chalking, TiO2 coated by an inert coating, such as SiO2 or A1203, has been developed, and low photoactivity TiO2 coated with inert coating is currently utilized as pigment for paint.


Intermediate Layer Ceramic Tile Ti02 Surface Inorganic Layer Ti02 Coating 
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© Springer Science+Business Media New York 2004

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  • T. Watanabe

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