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Photocatalytic degradation of 2,4-dichlorophenoxiacetic acid and 2,4,6-trichlorophenol with ZrO2 and Mn/ZrO2 sol-gel materials

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Abstract

Because of its semiconductor properties, sol-gel zirconia can be used as a photocatalyst. When zirconia is doped with transition metals, its electronic properties are modified. In this work, sol-gel Mn/ZrO2 and ZrO2 materials were tested for photocatalytic degradation of 2,4-dichlorophenoxiacetic acid and 2,4,6-trichlorophenol. The powders were characterized by XRD, UV-Vis and Raman spectroscopy. The apparent rate constants were calculated assuming pseudo-first order kinetics. The results reveal that ZrO2 is effective as a photocatalyst; moreover, its photocatalytic properties improve when it is doped with manganese.

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Authors and Affiliations

  1. Department of Chemistry, Universidad Autónoma Metropolitana-Iztapalapa, P. O. Box 44-534, México, D. F., 09340

    T. López & M. Alvarez

  2. Instituto Mexicano del Petróleo, Eje Central Lázaro Cárdenas 152, México, 07000, D.F., México

    F. Tzompantzi

  3. Department of Physics, Universidad Autónoma Metropolitana-Iztapalapa, P. O. Box 44-534, México, D. F., 09340

    M. Picquart

Authors
  1. T. López
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  2. M. Alvarez
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  3. F. Tzompantzi
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  4. M. Picquart
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Correspondence to T. López.

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López, T., Alvarez, M., Tzompantzi, F. et al. Photocatalytic degradation of 2,4-dichlorophenoxiacetic acid and 2,4,6-trichlorophenol with ZrO2 and Mn/ZrO2 sol-gel materials. J Sol-Gel Sci Technol 37, 207–211 (2006). https://doi.org/10.1007/s10971-005-6630-1

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  • DOI: https://doi.org/10.1007/s10971-005-6630-1

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