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Photocatalytic TiO2 thin films prepared via a high-pressure crystallization process

✍ Scribed by Chung-Hsin Lu; Wei-Hong Wu

Publisher: Elsevier Science
Year: 2004
Tongue: English
Weight: 215 KB
Volume: 113
Category: Article
ISSN: 0921-5107
DOI: 10.1016/j.mseb.2004.06.013

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✦ Synopsis

Titania thin films with high photocatalytic activity are successfully synthesized by combining the metalorganic deposition method (MOD) and the high-pressure crystallization (HPC) process. The crystallization temperature of anatase-type TiO 2 films is significantly reduced to as low as 150 • C. TiO 2 thin films with crack-free surface and uniform morphology are obtained. The diffusion of silicon species from substrates into TiO 2 films is effectively suppressed. The HPC-derived TiO 2 thin films are demonstrated to have higher photocatalytic activity than those prepared via the conventional annealing process.

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