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Probing photocatalytic reactions in semiconductor systems: Study of the chemical intermediates in 4 -chlorophenol degradation by a variety of methods

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Abstract

The photocatalytic transformation of 4-chlorophenol (4-CP) has been studied in aqueous slurries, on powders and on immobilized particulate films of TiO2. These results are compared to those obtained using gamma and pulse radiolysis in order to establish a comprehensive picture of the 4-CP reaction pathway in TiO2 systems. The disappearance of 4-CP and its reaction intermediates in TiO2 slurries involves a combination of hydroxyl radical oxidation, direct electron transfer and surface chemical reactions.

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Authors and Affiliations

  1. Department of Civil Engineering and Geological Sciences, University of Notre Dame, 46556, Notre Dame, IN, USA

    Kimberly A. Gray

  2. Department of Chemical Engineering, University of Notre Dame, 46556, Notre Dame, IN, USA

    Ulick Stafford

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  1. Kimberly A. Gray
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  2. Ulick Stafford
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Gray, K.A., Stafford, U. Probing photocatalytic reactions in semiconductor systems: Study of the chemical intermediates in 4 -chlorophenol degradation by a variety of methods. Res Chem Intermed 20, 835–853 (1994). https://doi.org/10.1163/156856794X00586

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  • DOI: https://doi.org/10.1163/156856794X00586

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