酸化チタン微粒子の光溶解 Photo-induced Surface Dissolution of Titanium Dioxide Particles in Sulfuric Acid Solution

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Author(s)

Abstract

<p>The surface structure of TiO<sub>2</sub> particles was changed by illumination in a sulfuric acid solution. Small dimples with a size less than a few tens of nm were formed when the surface of the particles was modified by platinum. Particles without the platinum modification did not show any change in their surface structure. A structural change was also observed when the particles were positively polarized in a sulfuric acid solution under illumination on an optically transparent glass electrode. The results suggest that the density of the photogenerated holes in the particles play an important role in inducing the photoetching reaction of TiO<sub>2</sub> particles.</p>

Journal

  • Electrochemistry

    Electrochemistry 70(6), 457-459, 2002-06-05

    The Electrochemical Society of Japan

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Codes

  • NII Article ID (NAID)
    10008573618
  • NII NACSIS-CAT ID (NCID)
    AN00151637
  • Text Lang
    ENG
  • Article Type
    Journal Article
  • ISSN
    13443542
  • NDL Article ID
    6180129
  • NDL Source Classification
    ZP1(科学技術--化学・化学工業)
  • NDL Call No.
    Z17-14
  • Data Source
    CJP  CJPref  NDL  J-STAGE 
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