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Keywords:

  • fluorine;
  • nitrogen;
  • photochemistry;
  • titanium oxide;
  • visible light

Abstract

Thumbnail image of graphical abstract

Synergistic interactions between N and F can be used to tune the band structures of N-doped TiO2 (see scheme). Reduction potential of conduction band electron is positively shifted to weaken unwanted O2 reduction, but enhances the target reduction reaction in air. The tuning also enhances the oxidation ability of the valence band to oxidize water to O2, which makes photocatalytic reduction proceed without any organic sacrificial reagents.