✦ LIBER ✦

Effects of crystallinity and grain size on photocatalytic activity of titania films

✍ Scribed by Masahiko Maeda; Teruyoshi Watanabe

Publisher: Elsevier Science
Year: 2007
Tongue: English
Weight: 661 KB
Volume: 201
Category: Article
ISSN: 0257-8972
DOI: 10.1016/j.surfcoat.2007.04.094

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✦ Synopsis

The crystalline structure and grain size of the plasma-nitrided titania films annealed with various temperatures were examined. In the plasmanitrided titania films, transition temperature from anatase to rutile rises and grain growth is suppressed compared with non-doped titania film. The photocatalytic activity between anatase and rutile films is compared without the effect of surface area. It is shown that the photocatalytic activity of rutile film is lower than that of anatase film. Therefore, it is concluded that the photocatalytic activity of the anatase film is essentially higher than that of rutile film.

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