期刊
JOURNAL OF MATERIALS CHEMISTRY
卷 13, 期 9, 页码 2348-2352出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/b303420h
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Fluorine doped SrTiO3 powders were prepared by a mechanochemical reaction method. The powders consisted of spherical particles of 20 nm and 0.1-0.2 mum in diameter. The photocatalytic activities of SrTiO3 for the oxidative decomposition of NO under visible light (lambda > 400 nm) and near ultraviolet light (lambda > 290 nm) irradiation were greatly improved by the fluorine doping. Fluorine doping in the SrTiO3 lattice enhanced its photocatalytic activity under irradiation with visible light (lambda > 400 nm) ca. three times. It was also found that the photocatalytic activities of SrTiO3-xFx under both visible light and near ultraviolet light irradiation were higher than those of commercial titania powder (Degussa P-25).
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