Efficient persistent photocatalytic decomposition of nitrogen monoxide over a fluorescence-assisted CaAl2O4:(Eu, Nd)/(Ta, N)-codoped TiO2/Fe2O3

Huihui Li, Shu Yin, Yuhua Wang, Tsugio Sato

Research output: Contribution to journalArticlepeer-review

45 Citations (Scopus)

Abstract

An effective promoting approach was described to modify the photoelectrochemical properties of rutile TiO2 by codoping with the nonmetal N and transition metal Ta ions, followed by loading with Fe2O3. Here, the charge compensated and coupled semiconductor systems were constructed, and their visible-light and persistent fluorescence assisted photocatalytic activities for NO destruction and CH3CHO removal were evaluated. The results demonstrated that both the charge compensation of TiO2 by co-doping with N3- and Ta5+ and loading with a proper amount of Fe2O3 facilitated the enhancement of both the visible-light and persistent fluorescence induced photocatalytic ability. The TiO2 co-doped with N3- and Ta5+ followed by loading with Fe2O3 excellently met the criteria for the persistent photocatalysts, which can be functional for environmental purification even after turning off lamp irradiation.

Original languageEnglish
Pages (from-to)487-492
Number of pages6
JournalApplied Catalysis B: Environmental
Volume132-133
DOIs
Publication statusPublished - 2013 Mar 7

Keywords

  • Compensated codoping
  • Coupling
  • Loading
  • Persistent fluorescence assisted
  • Photocatalyst
  • Visible-light

ASJC Scopus subject areas

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

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