論文

2003年

Observations of TiO2 surfaces using totally reflected x-ray in-plane diffraction under UV irradiation

STRUCTURE-PROPERTY RELATIONSHIPS OF OXIDE SURFACES AND INTERFACES II
  • T Horiuchi
  • ,
  • H Ochi
  • ,
  • K Kaisei
  • ,
  • K Ishida
  • ,
  • K Matsushige

751
開始ページ
145
終了ページ
148
記述言語
英語
掲載種別
研究論文(国際会議プロシーディングス)
DOI
10.1557/PROC-751-Z3.47
出版者・発行元
MATERIALS RESEARCH SOCIETY

Surface lattice displacements of titanium dioxide (TiO2: rutile) during ultra-violet (UV) light irradiation have been investigated using a total reflection x-ray diffraction, which provides a high signal to noise ratio (S/N) and superior in-plane surface diffraction. Under the environments in vapors of H2O, CH3OH, C2H5OH and C3H6OH, the photo-catalytic activities of TiO2 (110), (100) and (001) surfaces subject to UV irradiation have been measured. It is found that the diffraction peaks and their full width half maxima (FWHMs) show some peculiarities with respect to the photo-catalytic activities in both surface lattices and adsorbed molecules in vapors. Furthermore, Kelvin force microscopy (KFM) has showed that there exists a very high surface potential, probably due to surface atom displacements induced by UV irradiation. With regard to the origin of the photo-catalytic activities, the induced surface potentials are discussed.

リンク情報
DOI
https://doi.org/10.1557/PROC-751-Z3.47
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000183444800024&DestApp=WOS_CPL
ID情報
  • DOI : 10.1557/PROC-751-Z3.47
  • ISSN : 0272-9172
  • Web of Science ID : WOS:000183444800024

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