Effect of phase structures of TiO 2-xN y on the photocatalytic activity of CaAl 2O 4:(Eu, Nd)-coupled TiO 2-xN y

Huihui Li, Shu Yin, Yuhua Wang, Tsugio Sato

Research output: Contribution to journalArticle

45 Citations (Scopus)

Abstract

Nitrogen-doped titanium oxide (TiO 2-xN y) nanocrystalline with different phase of anatase, rutile or brookite was coupled with CaAl 2O 4:(Eu, Nd) particles by planetary ball milling treatment. The effect of phase structures on the persistent photocatalytic activity of a CaAl 2O 4:(Eu, Nd)/TiO 2- xN y composite was evaluated for the oxidative destruction of NO. The persistent catalytic degradation of NO by TiO 2- xN y was realized in the presence of CaAl 2O 4:(Eu, Nd), which shows a long afterglow luminescence. The persistent photocatalytic property of composites changed depending on the crystalline phase of TiO 2-xN y, i.e., the persistent photocatalytic property of CaAl 2O 4:(Eu, Nd) combined with brookite type TiO 2-xN y was superior to those of anatase or rutile phase TiO 2-xN y.

Original languageEnglish
Pages (from-to)273-278
Number of pages6
JournalJournal of Catalysis
Volume286
DOIs
Publication statusPublished - 2012 Feb 1

Keywords

  • Crystalline phase
  • Persistent catalytic activity
  • TiO -based composite photocatalyst

ASJC Scopus subject areas

  • Catalysis
  • Physical and Theoretical Chemistry

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