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TitanShield™ SolarCoat (download pdf)
Self-cleaning Performance


Photo-decomposition

The TitanShield™ SolarCoat is a special nano photocatalyst coat combined by photocatalyst and nano technology. Generally, detergents reduce the surface tension of water and the contact angle will lowered. When the surface of nano level photocatalytic film is exposed to light, the contact angle of the photocatalyst surface with water is reduced gradually. After enough exposure to light, the surface reaches super-hydrophilicity. In other words, it does not repel water at all, so water cannot exist in the shape of a drop, but spreads flatly on the substrate. The hydrophilic nature of titanium dioxide, coupled with the gravity, will enable the dust particles to be swept away following the water stream (rain), thus making the key feature of self-cleaning and easy-cleaning.
 

photo-decomposition

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Photo-decomposition by Photocatalyst with Light
Two activated species (O2 -, OH•) produced on the surface of TiO2 with oxygen and water have strong redox power. By this action, Photocatalyst decomposes harmful organic materials into harmless carbon dioxide and water.

photo-decomposition

Photo-decomposition of 2-propanol by various photocatalysts. Graph on right side shows that increased CO2 is generated via acetone from 2-propanol by photo-decomposition.

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