Journal of Materials Science

, Volume 16, Issue 6, pp 1680–1688 | Cite as

Surface properties of TiO2 modified with zinc ions

  • Fabio Garbassi
  • Emiliano Mello Ceresa
  • Mario Visca
Papers

Abstract

The surface properties of TiO2 modified with zinc ions have been studied. Zinc ions mainly segregate at the surface and their removal occurs at acid pH, while at basic pH both the bulk and the surface zinc contents are not affected. Different surface oxygen species were observed and identified: the species at 529.7 eV, is attributed to lattice oxygen ions, the others, at higher energies, are oxygen-containing groups due to surface hydration. A direct correlation was found between the surface zinc concentration and the photostability of the TiO2 samples.

Keywords

Oxygen Zinc TiO2 Hydration Surface Property 

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Copyright information

© Chapman and Hall Ltd 1981

Authors and Affiliations

  • Fabio Garbassi
    • 1
  • Emiliano Mello Ceresa
    • 1
  • Mario Visca
    • 2
  1. 1.Istituto G. Donegani SpANovaraItaly
  2. 2.Centro Ricerche SIBITSpinetta MarengoItaly

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