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

doi:10.2351/1.5062428

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 conference › Paper › peer-review

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 language	English
Pages	1311-1314
Number of pages	4
DOIs	https://doi.org/10.2351/1.5062428
Publication status	Published - 2012
Externally published	Yes
Event	31st International Congress on Applications of Lasers and Electro-Optics, ICALEO 2012 - Anaheim, CA, United States Duration: Sept 23 2012 → Sept 27 2012

Other

Other	31st International Congress on Applications of Lasers and Electro-Optics, ICALEO 2012
Country/Territory	United States
City	Anaheim, CA
Period	9/23/12 → 9/27/12

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials

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10.2351/1.5062428

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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. https://doi.org/10.2351/1.5062428

Variation of photocatalytic activity in titanium dioxide film modified by femtosecond laser irradiation. / Horiguchi, Naoto; Tsukamoto, Masahiro; Yoshida, Minoru et al.

2012. 1311-1314 Paper presented at 31st International Congress on Applications of Lasers and Electro-Optics, ICALEO 2012, Anaheim, CA, United States.

Research output: Contribution to conference › Paper › peer-review

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', Paper presented at 31st International Congress on Applications of Lasers and Electro-Optics, ICALEO 2012, Anaheim, CA, United States, 9/23/12 - 9/27/12 pp. 1311-1314. https://doi.org/10.2351/1.5062428

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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.",

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AU - Horiguchi, Naoto

AU - Tsukamoto, Masahiro

AU - Yoshida, Minoru

AU - Shinonaga, Togo

AU - Takahashi, Masanari

AU - Fujita, Masayuki

AU - Abe, Nobuyuki

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AB - 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.

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

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