Variation of photocatalytic activity in titanium dioxide film modified by femtosecond laser irradiation

Naoto Horiguchi, Masahiro Tsukamoto, Minoru Yoshida, Togo Shinonaga, Masanari Takahashi, Masayuki Fujita, Nobuyuki Abe

Research output: Contribution to conferencePaper

Abstract

Titanium dioxide (TiO2) has a variety of functions, but cannot be activated by visible-light illumination. It is importance to extend the activity of TiO2 into the visible-light, which comprises the larger portion of the room light. Therefore, the visible-light activated TiO 2 is required. We developed it with the femtosecond laser irradiation. The TiO2 films irradiated with femtosecond laser were darkened without changing topography of the TiO2 film surface. In the visible-light photocataltic function measurements, the TiO2 films were evaluated with the acetaldehyde decomposition test. The concentration of acetaldehyde was decreased to over time. This result indicated that visible-light activated photocatalyst function of TiO2 films were generated by femtosecond laser irradiation.

Original languageEnglish
Pages1311-1314
Number of pages4
Publication statusPublished - Dec 1 2012
Externally publishedYes
Event31st International Congress on Applications of Lasers and Electro-Optics, ICALEO 2012 - Anaheim, CA, United States
Duration: Sep 23 2012Sep 27 2012

Other

Other31st International Congress on Applications of Lasers and Electro-Optics, ICALEO 2012
CountryUnited States
CityAnaheim, CA
Period9/23/129/27/12

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ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials

Cite this

Horiguchi, N., Tsukamoto, M., Yoshida, M., Shinonaga, T., Takahashi, M., Fujita, M., & Abe, N. (2012). Variation of photocatalytic activity in titanium dioxide film modified by femtosecond laser irradiation. 1311-1314. Paper presented at 31st International Congress on Applications of Lasers and Electro-Optics, ICALEO 2012, Anaheim, CA, United States.