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Study of surface structural change in the wettability change of rutile titanium dioxide surface

Research Project

Project/Area Number 24760542
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Inorganic materials/Physical properties
Research InstitutionThe University of Tokyo

Principal Investigator

SHIRASAWA Tetsuroh  東京大学, 物性研究所, 助教 (80451889)

Project Period (FY) 2012-04-01 – 2014-03-31
Project Status Completed (Fiscal Year 2013)
Budget Amount *help
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2013: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2012: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Keywords光誘起構造変化 / 表面X線回折 / 表面濡れ性
Research Abstract

I studied the structure of the rutile-titanium dioxide (110) surface during the ultraviolet-light-induced hydrophilic reaction. By using a newly developed high-speed surface x-ray diffraction measurement technique, I could show the direct evidence that the surface structure is changed during the hydrophilic reaction. Detailed structural analysis show that water molecules are regularly ordered on the hydrophobic surface, while on the hydrophilic surface the surface roughness is increased due to the oxygen vacancies created by the ultraviolet light, and the regular array of the water molecules are lifted on the rough surface. I could finally suggest that on the ultraviolet light irradiated surface the water molecules, which are not strongly restricted from the surface lattice potential, can make a hydrogen bond network with each other much easily than the well ordered hydrophobic surface.

Report

(3 results)
  • 2013 Annual Research Report   Final Research Report ( PDF )
  • 2012 Research-status Report
  • Research Products

    (11 results)

All 2014 2013 2012

All Journal Article (1 results) (of which Peer Reviewed: 1 results) Presentation (10 results)

  • [Journal Article] A method for measuring the specular X-ray reflectivity with millisecond time resolution2013

    • Author(s)
      W.Voegeli1, T.Matsushita, E.Arakawa, T.Shirasawa, T.Takahashi and Y. F.Yano
    • Journal Title

      Journal of Physics: Conference Series

      Volume: 425 Issue: 9 Pages: 092003-092003

    • DOI

      10.1088/1742-6596/425/9/092003

    • Related Report
      2013 Final Research Report 2012 Research-status Report
    • Peer Reviewed
  • [Presentation] X線CTR散乱法によるTiO2(110)表面超親水化反応における表面構造変化の研究2014

    • Author(s)
      白澤徹郎,Voegeli Wolfgang,荒川悦雄,高橋敏男,松下正
    • Organizer
      第27回日本放射光学会年次会・放射光科学合同シンポジウム
    • Place of Presentation
      広島国際会議場(広島県)
    • Related Report
      2013 Final Research Report
  • [Presentation] X線CTR散乱法によるTiO2(110)表面超親水化反応 における表面構造変化の研究2014

    • Author(s)
      白澤徹郎,Voegeli Wolfgang,荒川悦雄,高橋敏男,松下正
    • Organizer
      第27回日本放射光学会年会・放射光科学合同シンポジウム
    • Place of Presentation
      広島国際会議場(広島県)
    • Related Report
      2013 Annual Research Report
  • [Presentation] High-speed surface x-ray diffraction measurement in a multi-wavelength dispersive mode2013

    • Author(s)
      T. Shirasawa, W. Voegeli, E. Arakawa, T. Takahashi, T. Matsushita
    • Organizer
      12^<th> international conference on atomically controlled surfaces, interfaces and nanostructures
    • Place of Presentation
      つくば国際会議場エポカル(茨城県)
    • Related Report
      2013 Final Research Report
  • [Presentation] Structural change of TiO2(110) surface during the hydrophilic reaction studied with time-resolved x-ray CTR scattering2013

    • Author(s)
      T. Shirasawa, W. Voegeli, E. Arakawa, T. Takahashi, T. Matsushita
    • Organizer
      Light and Particle Beams in Material Science 2013
    • Place of Presentation
      つくば国際会議場エポカル(茨城県)
    • Related Report
      2013 Final Research Report
  • [Presentation] 波長分散型X線CTR散乱法を用いたルチル型TiO2(110)表面超親水化反応のその場観察2013

    • Author(s)
      白澤徹郎,Voegeli Wolfgang,荒川悦雄,高橋敏男,松下正
    • Organizer
      物構研サイエンスフェスタ
    • Place of Presentation
      つくば国際会議場エポカル(茨城県)
    • Related Report
      2013 Final Research Report
  • [Presentation] Structural change of the TiO2(110) surface during the hydrophilic reaction studied with time-resolved x-ray CTR scattering2013

    • Author(s)
      T. Shirasawa, W. Voegeli, E. Arakawa, T. Takahashi, and T. Matsushita
    • Organizer
      Light and Particle Beams in Materials Science 2013
    • Place of Presentation
      つくば国際会議場(茨城県)
    • Related Report
      2013 Annual Research Report
  • [Presentation] High-speed Surface X-ray Diffraction Measurement in a Multi-wavelength Dispersive Mode2013

    • Author(s)
      Tetsuroh Shirasawa, Etsuo Arakawa, Wolfgang Voegeli, Toshio Takahashi, Tadashi Matsushita
    • Organizer
      12th International Conference on Atomically Controlled Surfaces, Interfaces and Nanostructures
    • Place of Presentation
      つくば国際会議場(茨城県)
    • Related Report
      2013 Annual Research Report
  • [Presentation] 多波長同時分散型X線CTR散乱法を用いた ルチルTiO2(110)表面超親水化反応のその場観察2013

    • Author(s)
      白澤徹郎,Voegeli Wolfgang,荒川悦雄,高橋敏男,松下正
    • Organizer
      物構研サイエンスフェスタ
    • Place of Presentation
      つくば国際会議場エポカル
    • Related Report
      2012 Research-status Report
  • [Presentation] 波長分散型X線CTR散乱法を用いたルチル型TiO2(110)表面超親水化反応の時分割測定2012

    • Author(s)
      白澤徹郎,Voegeli Wolfgang,荒川悦雄,高橋敏男,松下正
    • Organizer
      日本物理学会2012年秋季大会
    • Place of Presentation
      横浜国立大学(神奈川県)
    • Related Report
      2013 Final Research Report
  • [Presentation] 波長分散型X線CTR散乱法を用いた ルチルTiO2(110)表面超親水化反応の時分割測定2012

    • Author(s)
      白澤徹郎,Voegeli Wolfgang,荒川悦雄,高橋敏男,松下正
    • Organizer
      日本物理学会 2012年秋季大会
    • Place of Presentation
      横浜国立大学
    • Related Report
      2012 Research-status Report

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Published: 2013-05-31   Modified: 2019-07-29  

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