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Photoelectrochemical response of TiO2 pigmented membranes

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Abstract

Titanium dioxide pigments have been dispersed in a porous nitrocellulose matrix applied to a vitreous carbon electrode. Illumination of these coated electrodes with monochromatic light in the near UV region gives rise to photocurrents which have been shown to correspond to the oxidation or reduction of hydrogen peroxide produced at the illuminated titanium dioxide particles. Ring-disc and pulsed photocurrent measurements have been used to investigate how the photochemical reaction is coupled by diffusion to the electrochemical detection of hydrogen peroxide. The results of the study suggest that the photocatalytic properties of semi-conductor dispersions may be characterized using similar coated electrodes.

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Authors and Affiliations

  1. Department of Chemistry, The University, SO9 5NH, Southampton, UK

    J. Li, L. M. Peter & R. Potter

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  1. J. Li
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  2. L. M. Peter
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  3. R. Potter
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Li, J., Peter, L.M. & Potter, R. Photoelectrochemical response of TiO2 pigmented membranes. J Appl Electrochem 14, 495–504 (1984). https://doi.org/10.1007/BF00610815

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  • DOI: https://doi.org/10.1007/BF00610815

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