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Photocatalytic degradation of humic acid using a novel photocatalyst: Ce-doped ZnO

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Abstract

This study aimed at investigating the photocatalytic degradation of humic acid (HA) as a representative of natural organic matter (NOM) by using Ce-doped ZnO as a novel material. Following photocatalysis, HA degradation was characterized by specified UV-vis and fluorescence spectroscopic parameters as well as by the dissolved organic carbon (NPOC) content. Excitation–Emission Matrix (EEM) fluorescence features were also evaluated by using advanced techniques. Comparison of Ce-doped ZnO photocatalysis to TiO2 P-25 photocatalytic treatment of the HA samples was elucidated under similar experimental conditions. Kinetic modeling of the photocatalytic removal of HA expressed promising results indicating that Ce-doped ZnO could serve as an efficient catalyst for the degradation of NOM.

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Authors and Affiliations

  1. Institute of Environmental Sciences, Bogazici University, 34342, Bebek Istanbul, Turkey

    N. C. Birben & M. Bekbolet

  2. Department of Chemistry, University of Turin, Via Giuria 7, 10125, Turin, Italy

    M. C. Paganini & P. Calza

Authors
  1. N. C. Birben
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  2. M. C. Paganini
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  3. P. Calza
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  4. M. Bekbolet
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Correspondence to N. C. Birben.

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Electronic supplementary information (ESI) available. See DOI: 10.1039/c6pp00216a

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Birben, N.C., Paganini, M.C., Calza, P. et al. Photocatalytic degradation of humic acid using a novel photocatalyst: Ce-doped ZnO. Photochem Photobiol Sci 16, 24–30 (2017). https://doi.org/10.1039/c6pp00216a

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  • DOI: https://doi.org/10.1039/c6pp00216a

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