Fundamental Study on Influence of Surface Topography
on Photocatalytic Reaction
|
| Journal |
Key Engineering Materials (Volumes 389 - 390) |
| Volume |
Advances in Abrasive Technology XI |
| Edited by |
Tsunemoto Kuriyagawa, Libo Zhou, Jiwang Yan and Nobuhito Yoshihara |
| Pages |
417-423 |
| DOI |
10.4028/www.scientific.net/KEM.389-390.417 |
| Online since |
September, 2008 |
| Authors |
Keisuke Azusawa, Yuta Ishii, Jun Shimizu, Li Bo Zhou, Hiroshi Eda |
| Keywords |
Film, Hydrophilicity, Photocatalytic Reaction, Powder, Surface Area, Surface Roughness, Surface Topography, Titania (TiO2), Ultra Violet Ray, Wettability |
| Abstract |
TiO2 has some unique photocatalytic functions and some of them have been utilized
industrially, and further functional enhancement and performance enhancement of TiO2 have been
required. Under such circumstances, this study aims to clarify the influence of surface topography on
the photocatalytic reaction of TiO2 film surface. As the first step, the optimum mixing ratio in film
preparation by using TiO2 powder was examined and the films with several kinds of surface
roughnesses were prepared. And, the influence of surface topography on the wettabilty, which is one
of the photocatalytic functions of TiO2 was evaluated. As a result, it was confirmed that the
wettability of TiO2 films could be improved by increasing both the surface roughness and actual
surface area under the ultraviolet rays irradiation environment. |
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