Journal
RESEARCH ON CHEMICAL INTERMEDIATES
Volume 29, Issue 6, Pages 631-639Publisher
SPRINGER
DOI: 10.1163/156856703322539663
Keywords
rectangular column structured TiO2; photocatalyst; anchored TiO2; silica sheet
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Commercially available powdered photocatalysts such as P-25 are known to show high photocatalytic performance. However, in practical use, their anchoring onto a substrate without any binders is still very difficult. The purpose of this study is to design and develop high-performance photocatalysts that can be anchored onto a substrate, and to this end we have prepared a titanium oxide photocatalyst using a wet process. The results of this study led to the successful development of rectangular column structured titanium oxide crystals which could be anchored onto silica sheets. The rectangular columnar crystal was 100-500 nm wide and 1000-5000 nm long. Moreover, investigations on the complete oxidation reaction of acetaldehyde into CO2 and H2O showed a high performance equivalent to that of the most efficient marketed powdered photocatalysts.
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