期刊
PHYSICA B-CONDENSED MATTER
卷 447, 期 -, 页码 12-14出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.physb.2014.04.061
关键词
Oxides; Photocatalysis; Hydrogen
资金
- National Natural Science Foundation of China [2110304]
- National Postdoctoral Funding [2011M500786]
- Programs for Innovation Research Team in Science and Technology in University of Henan Province (IRTSTHN) [2012 IRTSTHN004]
The NaNbO3 photocatalysts were prepared under air, H-2/Ar and O-2 atmosphere by a solid state reaction. These samples were characterized by X-ray diffraction, UV-vis spectroscopy, Raman spectroscopy, scanning electron microscopy and X-ray photoelectron spectroscopy. The photocatalytic activity of NaNbO3 samples were evaluated from the hydrogen evolution from an aqueous methanol solution. The hydrogen evolution rate of NaNbO3 under air, H-2/Ar and O-2 atmosphere showed an increasing trend in turn. Moreover, the hydrogen evolution rate exhibited a linear increase with the surface oxygen defects. (C) 2014 Elsevier B.V. All rights reserved.
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