The chemical interaction between plasma-excited nitrogen and the surface of titanium dioxide

S. Kameoka, T. Kuriyama, M. Kuroda, S. Ito, K. Kunimori

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

The chemical interaction between plasma-excited nitrogen and TiO2 surface was studied by using infrared (IR) spectroscopy. When the plasma-excited nitrogen was exposed to TiO2 at room temperature, the decrease in the intensity of the OH band correlated well with the increase in the intensities of the N-H stretching bands of NH3(a). These results suggested that the plasma-excited nitrogen reacted with the surface hydroxyl groups on TiO2 to form NH3(a) even at room temperature. NH3 (74.4%), NO (20.5%) and N2 (5.1%) were desorbed after heating the TiO2 at 450°C, and a possible mechanism was discussed.

Original languageEnglish
Pages (from-to)411-415
Number of pages5
JournalApplied Surface Science
Volume89
Issue number4
DOIs
Publication statusPublished - 1995 Aug
Externally publishedYes

ASJC Scopus subject areas

  • Chemistry(all)
  • Condensed Matter Physics
  • Physics and Astronomy(all)
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films

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