Mechanochemical synthesis of nitrogen-doped titania and its visible light induced NOx destruction ability

Shu Yin, Hiroshi Yamaki, Qiwu Zhang, Masakazu Komatsu, Jinshu Wang, Qing Tang, Fumio Saito, Tsugio Sato

Research output: Contribution to journalArticlepeer-review

59 Citations (Scopus)

Abstract

Nitrogen-doped titania was prepared by planetary ball milling of P-25 titania with ammonium carbonate. The effects of reaction conditions on the phase composition, particle size, optical property, and photocatalytic activity were investigated in detail. The high mechanical energy accelerated the phase transformation of anatase to brookite and rutile. The prepared powders possessed two absorption edges around 405 and 550 nm, and showed excellent photocatalytic ability for nitrogen monoxide oxidation under visible light irradiation. Under the irradiation of visible light (wavelength >510 nm), nearly 28% of nitrogen monoxide could be continuously removed by the nitrogen-doped titania that was prepared by planetary milling of P-25 titania-10 wt.% ammonium carbonate mixture at 700 rpm for such short time as 15 min.

Original languageEnglish
Pages (from-to)205-209
Number of pages5
JournalSolid State Ionics
Volume172
Issue number1-4 SPEC. ISS.
DOIs
Publication statusPublished - 2004 Aug 31

Keywords

  • Ammonium carbonate
  • Mechochemical
  • NO destruction
  • Nitrogen-doped titania
  • Visible light reactive photocatalyst

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics

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