Fabrication, characterization, and photocatalytic performance of TiO2 hybridized with SiO2

Fabrication, characterization, and photocatalytic performance of TiO2 hybridized with SiO2 Nanostructures TiO2–SiO2 photocatalysts were successfully synthesized using the sol-gel method, hydro-calcination, co-precipitation and room-temperature solid-phase synthesis technology. X-ray powder diffraction pattern (XRD), Fourier transform infrared spectrum (FTIR), photoluminescence (PL) spectra, thermal analyses (TG–DTA), scanning electron micrographs (SEM), X-ray photoelectron spectroscopy (XPS), and UV-Vis diffuse reflectance spectroscopy (UV-Vis DRS) were used to characterize the as-synthesized catalysts. Photocatalytic performances of the catalysts were evaluated by the degradation of methyl orange (MO) under s imulated natural light and the degradation rate of MO is 97.2%. The composites showed a good stability: after five recycling runs there are no significant decreases in the photocatalytic activity. The photodegradation of methylene blue, rhodamine B, methyl violet, naphthol green B, basic fuchsin, malachite green, and methyl red were also tested, and the degradation rate of dyes could reach over 94.2 %. A possible mechanism for the photocatalysis with the TiO2–SiO2 was proposed. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Applied Chemistry Springer Journals

Fabrication, characterization, and photocatalytic performance of TiO2 hybridized with SiO2

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Pleiades Publishing
Copyright © 2017 by Pleiades Publishing, Ltd.
Chemistry; Chemistry/Food Science, general; Industrial Chemistry/Chemical Engineering
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