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Trends in Colloid and Interface Science XII pp 21–24Cite as

Point of zero charge estimation for a TiO2/water interface

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Part of the book series: Progress in Colloid & Polymer Science ((PROGCOLLOID,volume 110))

Abstract

The point of zero charge of a certain commercial titanium dioxide has been determined. This is crucial in determining the colloidal stability that our TiO2/water dispersion exhibits, which greatly influences the efficiency of the detoxification process where this interface is employed. The method used is based on the semiconductor properties of titanium dioxide and on the slow OH− consumption that has been observed in this type of interfaces. The electrophoretic mobility of the TiO2 dispersion was measured at different pHs, establishing for the point of zero charge a value of 7.5.

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Author information

Authors and Affiliations

  1. Departamento de Física Aplicada La Cañada de San Urbano s/n, Universidad de Almería, 04120, Almería, Spain

    A. Fernández-Nieves & F. J. de las Nieves

  2. Department of Solar Chemistry, DLR-Plataforma Solar de Almería, 04080, Almería, Spain

    C. Richter

Authors
  1. A. Fernández-Nieves
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  2. F. J. de las Nieves
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  3. C. Richter
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Editor information

G. J. M. Koper D. Bedeaux C. Cavaco W. F. C. Sager

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© 1998 Dr. Dietrich Steinkopff Verlag GmbH & Co. KG

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Fernández-Nieves, A., de las Nieves, F.J., Richter, C. (1998). Point of zero charge estimation for a TiO2/water interface. In: Koper, G.J.M., Bedeaux, D., Cavaco, C., Sager, W.F.C. (eds) Trends in Colloid and Interface Science XII. Progress in Colloid & Polymer Science, vol 110. Steinkopff. https://doi.org/10.1007/BFb0118041

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  • DOI: https://doi.org/10.1007/BFb0118041

  • Published:

  • Publisher Name: Steinkopff

  • Print ISBN: 978-3-7985-1117-0

  • Online ISBN: 978-3-7985-1653-3

  • eBook Packages: Springer Book Archive

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