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Adsorption and Photocatalytic Decomposition of Volatile Organic Compounds on Photocatalyst of TiO2—Silica Beads

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Abstract

Photocatalyst of TiO2 coated on silica beads was prepared, and the adsorption isotherms and kinetics of photocatalytic decomposition of acetone and acetaldehyde on the photocatalyst were studied at room temperature (ca. 298 K). Adsorption isotherms of both acetone and acetaldehyde conformed to the Langmuir isotherm. FTIR spectra of the gas phase showed that these volatile organic compounds were mainly oxidized to CO2 and H2O. The time courses of concentration change due to photocatalytic decomposition under UV-irradiation were well represented by a proposed model by using the values of Langmuir parameters and the kinetic parameters determined.

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Authors and Affiliations

  1. Department of Chemical Science and Technology, The University of Tokushima, Tokushima, 770–8506, Japan

    Tahei Tomida, Naoyuki Okada & Masahiro Katoh

  2. Photo-Catalytic Materials Inc., Komaki, 485–0011, Japan

    Shigekazu Katoh

Authors
  1. Tahei Tomida
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  2. Naoyuki Okada
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  3. Masahiro Katoh
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  4. Shigekazu Katoh
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Correspondence to Tahei Tomida.

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Tomida, T., Okada, N., Katoh, M. et al. Adsorption and Photocatalytic Decomposition of Volatile Organic Compounds on Photocatalyst of TiO2—Silica Beads. Adsorption 11 (Suppl 1), 865–869 (2005). https://doi.org/10.1007/s10450-005-6037-x

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  • DOI: https://doi.org/10.1007/s10450-005-6037-x

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