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Adsorption and Photocatalytic Decomposition of Toluene on TiO2 Surfaces

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Abstract

We studied the adsorption of toluene and its photodecomposition by TiO2 surfaces under UV irradiation using P-25 samples subjected to two different treatments. In order to shed light on the elementary steps of the photocatalytic decomposition of toluene, we employed X-ray photoelectron spectroscopy (XPS). A higher population of the surface OH-group of TiO2 increased the adsorption reactivity and initial rate of the photodecomposition of toluene. We also identified more efficient accumulation of toluene on the surface of TiO2 with high concentrations of OH-groups via XPS.

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Acknowledgements

This subject is supported by the Korean Ministry of Environments as part of “The Eco-Technopia 21 Project”.

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Authors and Affiliations

  1. Department of Chemistry, Sungkyunkwan University, Suwon, 440-746, Korea

    Yuan Luo, Wei Sheng Tai, Hyun Ook Seo, Kwang-Dae Kim, Myoung Joo Kim, Nilay Kumar Dey & Young Dok Kim

  2. Materials Processing Division, Korea Institute of Materials Science, Changwon, 641-010, Korea

    Kang Ho Choi & Dong Chan Lim

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  1. Yuan Luo
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  2. Wei Sheng Tai
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  3. Hyun Ook Seo
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  4. Kwang-Dae Kim
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  5. Myoung Joo Kim
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  7. Young Dok Kim
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  8. Kang Ho Choi
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  9. Dong Chan Lim
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Correspondence to Young Dok Kim.

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Luo, Y., Tai, W.S., Seo, H.O. et al. Adsorption and Photocatalytic Decomposition of Toluene on TiO2 Surfaces. Catal Lett 138, 76–81 (2010). https://doi.org/10.1007/s10562-010-0369-1

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  • DOI: https://doi.org/10.1007/s10562-010-0369-1

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