The influence of synthesis method on the properties of iron contained N doped TiO2 photocatalysts

Peilin Zhang, Shu Yin, Tsugio Sato

Research output: Contribution to journalArticlepeer-review

33 Citations (Scopus)

Abstract

Fe contained TiO2-xNy were prepared by two different methods to control the status of Fe in the final products. By a 1-step hydrothermal method, Fe and N co-doped TiO2 which showed similar crystalline phases, photo absorption properties and specific surface areas to TiO2-xNy were formed. However, the Fe and N co-doping caused the decrease in photocatalytic activity, due to the formation of lattice vacancy. On the other hand, by a 2-step hydrothermal method, TiO2-xNy/Fe2O3 composites were formed, which showed superior visible light absorption ability to TiO2-xNy regardless the decrease in specific surface areas. The excellent deNOx abilities of TiO2-xNy/Fe2O3 composites may be due to the heterogeneous electron transfer from TiO2-xNy to Fe2O3 to retard the quick recombination of photoinduced electrons and holes.

Original languageEnglish
Pages (from-to)462-469
Number of pages8
JournalApplied Catalysis B: Environmental
Volume103
Issue number3-4
DOIs
Publication statusPublished - 2011 Apr 5

Keywords

  • Co-doping
  • Coupling
  • DeNO
  • Iron
  • Nitrogen
  • Photocatalyst
  • Visible-light

ASJC Scopus subject areas

  • Catalysis
  • Environmental Science(all)
  • Process Chemistry and Technology

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