Synthesis and photocatalytic activity of Sr4Al 14O25:(Eu, Dy)/TiO2-xNy composite photocatalyst

Huihui Li, Shu Yin, Yuhua Wang, Qiang Dong, Chongshen Guo, Tsugio Sato

Research output: Contribution to journalArticlepeer-review


Sr4Al14O25:(Eu, Dy)/TiO 2-xNy composites were synthesised via the solvothermal reaction followed by the mild ball-milling, and the photocatalytic activities were evaluated for deNOx ability both under artificial solar irradiation with 69.3 W/m2 and after turning off the light. It was confirmed that TiO2-xNy nanoparticles with rutile phase could be uniformly dispersed on the surface of Sr4Al 14O25:(Eu, Dy). The improvement of photocatalytic deNOx ability of TiO2-xNy, together with the persistent photocatalytic activity for the decomposition of NO gas after turning off the light was realised.

Original languageEnglish
Pages (from-to)13-21
Number of pages9
JournalInternational Journal of Nanotechnology
Issue number1-2
Publication statusPublished - 2013


  • Air purification
  • Blue fluorescence
  • DeNOx
  • In the darkness
  • Long afterglow phosphor
  • Nitrogen-doped
  • Persistent decomposition
  • Photocatalytic
  • Titanium dioxide
  • Turning off light
  • Visible-light induction

ASJC Scopus subject areas

  • Bioengineering
  • Condensed Matter Physics
  • Electrical and Electronic Engineering
  • Materials Chemistry

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