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Black photocatalyst coatings of 6-potassium titanate (K2Ti6O13) and anatase TiO2 were formed on the surface of TiC coatings by low-temperature heat treatment in molten salt of KNO3 at 673K for 3h. The surface of the composite coatings of K2Ti6O13-TiO2/TiC shows the nano-sheet flower-like structure, which could substantially increase the accessible surface area, compared with that of composite coatings...
An inexpensive and effective method is used to enhance the photocatalytic activity of photocatalyst coatings by heat treatment in carbon atmosphere. Nano-bump structure with mixed crystal of titanium oxycarbide and rutile TiO2 form on the surface of Ti coatings, during heat treatment in carbon atmosphere. In the case of heat treatment in air, micro-column structure with rutile TiO2 form on the surface...
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