摘要
Nitrogen-doped nanocrystalline anatase TiO2 powders with different nitrogen-doping concentrations were synthesized at 150 C and held for 2 h under an initial pressure of 3 MPa by the mild hydrothermal method with no postheat treatment. The X-ray photoelectron spectroscopy results confirmed that substitutional and interstitial nitrogen coexisted in the TiO2 lattice and formed Ti-N and Ti-O-N linkages, respectively. The visible light absorption of nitrogen-doped TiO2 in the wavelength 400 ~ 550 nm was greatly enhanced compared with that of un-doped TiO2. Both optical absorption and photocatalytic efficiency were elevated with increased nitrogen-doping concentration.
源语言 | 英语 |
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页(从-至) | 1162-1167 |
页数 | 6 |
期刊 | Materials and Manufacturing Processes |
卷 | 29 |
期 | 10 |
DOI | |
出版状态 | 已出版 - 5月 2014 |