Structural dependence of photocatalytic properties of tungsten oxide

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Authors

DOMLÁTIL Jiří BROŽEK Vlastimil JANČA Jan ELIÁŠ Marek

Year of publication 2006
Type Article in Proceedings
Conference Development of Materials Science in Research and Education, Proceedings of the 16th Joint Seminar
MU Faculty or unit

Faculty of Science

Citation
Field Plasma physics
Keywords Tungsten oxides-photocatalytic activity- thermal plasma- photoactivity measurement
Description By decomposition of ammonia paratungstate in a radiofrequency generated oxygen or argon plasma, a series of specimens with the following stoichiometry were prepared: WO3, WO2.98, WO2.90 and WO2.82. The product structure was characterized by X-ray diffraction, oxygen content by the fussion extraction method (LECO) and TGA. Photocatalytic activity was determined by measuring the color change of spectrophotometric indicators
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