Abstract
Nitrogen and sulfur co-doped SrTiO3 was prepared by high energy grinding of the mixture of SrTiO3 and thiourea. A new band gap in visible light region (522 nm) corresponding to 2.37 eV could be formed by the co-doping. The photocatalytic activity for nitrogen monoxide oxidation of SrTiO3 in visible light region especially in the long wavelength range (λ > 510 nm) could be improved greatly. Under the irradiation of light with wavelength larger than 510 nm, the photocatalytic activity of nitrogen and sulfur co-doped SrTiO3 was 10.9 times greater than that of pure SrTiO3. The high visible light photocatalytic activity of this substance may be due to the formation of a new band gap that enables to absorb visible light effectively.
Original language | English |
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Pages (from-to) | 182-188 |
Number of pages | 7 |
Journal | Solid State Sciences |
Volume | 11 |
Issue number | 1 |
DOIs | |
Publication status | Published - 2009 Jan |
Keywords
- Co-doping
- Nitrogen
- SrTiO
- Sulfur
- Visible light-active
ASJC Scopus subject areas
- Chemistry(all)
- Materials Science(all)
- Condensed Matter Physics