Publications (1)1.63 Total impact
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Article: Synthesis, characterization and photocatalytic properties of tungsten-doped hydrothermal TiO2
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ABSTRACT: Crystalline anatase phase TiO2 with photocatalytic properties was obtained through a sol–gel low-temperature hydrothermal process. TiO2 samples doped with tungsten oxide were also obtained by using this synthetic approach. The photocatalytic oxidation of methylene blue in water was monitored to study the influence of the tungsten doping degree on the photocatalytic degradation performance of TiO2. The degradation rate constant was further increased by adjusting the tungsten doping degree of hydrothermal TiO2. Also, a much faster photodegradation of methylene blue was achieved using tungsten doped samples baked at 450°C. The results were compared with those obtained with Degussa P25 used as photocatalyst. The structure and optical properties of tungsten-doped TiO2 were studied by SEM, X-ray diffraction, UV–vis and DRIFT spectroscopy techniques. KeywordsSol–gel–Hydrothermal synthesis–TiO2 –Photocatalysis–Tungsten-dopedJournal of Sol-Gel Science and Technology 04/2012; 57(1):43-50. · 1.63 Impact Factor
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2012
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National Polytechnic Institute
Gustavo A. Madero, The Federal District, Mexico
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