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Sol–gel synthesis, preparation and characterization of photoactive TIO2 with ultrasound treatment

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Abstract

Titania was prepared by the sol–gel method from titanium isopropoxide with ultrasound influence (USI) by different pH (acetic acid (AA) or diethyl amine (DEA). Samples were represented in powder and films forms. The TiO2 was characterized by X-ray diffraction (XRD), FTIR. XRD shows that TiO2 prepared with diethyl amine has only the anatase phase, however the samples prepared with acetic acid–anatase and rutile phases both could be detected. Ultrasound influence increases the anatase content in comparison with its missing. Photo electromotive force (Photo EMF) datas of TiO2 films were received in a three-electrode wet cell. It was found that the photo activity depended on the conditions of synthesis crystalline phases. Photo EMF for the TiO2 films on the nickel electrode is 1.5 mV (TiO2 with acetic acid conditions), 6.8 mV (TiO2 with diethyl amine conditions) 8.0 mV (TiO2 with acetic acid + USI conditions), 22.0 mV (TiO2 with diethyl amine +USI conditions).

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Authors and Affiliations

  1. Solution Chemistry Institute of Russian Academy of Sciences, Academicheskaya Street, 1, 153045, Ivanovo, Russian Federation

    A. V. Agafonov

  2. Ivanovo State University of Chemistry and Technology, F.Engels Avenue, 7, 153000, Ivanovo, Russian Federation

    A. V. Vinogradov

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  1. A. V. Agafonov
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  2. A. V. Vinogradov
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Correspondence to A. V. Vinogradov.

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Agafonov, A.V., Vinogradov, A.V. Sol–gel synthesis, preparation and characterization of photoactive TIO2 with ultrasound treatment. J Sol-Gel Sci Technol 49, 180–185 (2009). https://doi.org/10.1007/s10971-008-1856-3

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  • DOI: https://doi.org/10.1007/s10971-008-1856-3

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