期刊
APPLIED SURFACE SCIENCE
卷 274, 期 -, 页码 117-123出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.apsusc.2013.02.125
关键词
Ti powders; TiO2 single crystals; {001} Facets; Enhanced photocatalytical activity
类别
资金
- Scientific Research Fund of Hunan Provincial Education Department [09A083]
- Science and Technology Fund of Hunan Provincial Science and Technology Department [2012FJ4137]
Anatase TiO2 single with dominant {0 0 1} facets were fabricated from Ti powders through a facile hydrothermal method. The obtained TiO2 single crystals have a remarkable similar to 75% fraction of {0 0 1} facets. The crystallographic structure of the anatase products and the influence of the experimental factors, such as the reaction temperatures, the amount of precursor, and the reaction time, on the morphology and the exposed facets were investigated systematically by X ray diffraction, scanning electron microscope, transmission electron microscope, X-ray photoelectron spectroscopy spectra. Owing to the highly reactive dominant {0 0 1} facets and the high crystallinity, the obtained anatase TiO2 products exhibited significantly superior activities compared with commercial P25 titania nanoparticles in the photocatalytic degradation of methylene blue dye. (C) 2013 Elsevier B.V. All rights reserved.
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