期刊
NANOSCALE
卷 6, 期 15, 页码 9078-9084出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c4nr00972j
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资金
- National Natural Science Foundation of China [20925621, 21236003]
- Shanghai Rising-Star Program [13QA1401100]
- Basic Research Program of Shanghai [11JC1403000]
- Special Projects for Nanotechnology of Shanghai [11nm0500800]
- Special Research Fund for the Doctoral Program of Higher Education of China [20110074110010, 20120074120004]
- Fundamental Research Funds for the Central Universities
A novel one-step, vapor-fed aerosol flame synthetic process (VAFS) has been developed to prepare Ti3+ self-doped titanium dioxide (TiO2). The freshly formed TiO2 was in situ surface hydrogenated during the condensation stage by introducing H-2 above the flame, and Ti3+ ions were created near the surface of TiO2. The relative content of Ti3+ ions near the surface of TiO2 is estimated to be 8%. Because of the high absorption of visible light and suppression of charge recombination, the photocurrent density and decomposition of MB under visible light irradiation were remarkably enhanced. This study demonstrates a simple, potential method to produce Ti3+ self-doped TiO2 with effective photoactivity in visible light.
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