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Physicochemical basis of the sol-gel process giving selective layers of ultrafiltration ceramic membranes from zirconia hydrosol

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Abstract

Selective layers of ceramic ultrafiltration membranes were prepared by the sol-gel method using zirconia hydrosol as the initial material. On the basis of turbidimetric investigations, a compatibility diagram was constructed in the zirconia (sol) — polymer thickener — water system. The results of x-ray phase analysis and thermogravimetric analysis were used to choose the regime for heat treatment of the sol — polymer thickener compositions in order to prepare selective layers. The characteristics of the pore structure of the selective layers meet the requirements imposed on ultrafiltration membranes.

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Authors and Affiliations

  1. D. I. Mendeleev Russian Chemical Engineering University, Moscow, Russia

    N. G. Medvedkova & V. V. Nazarov

Authors
  1. N. G. Medvedkova
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  2. V. V. Nazarov
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Medvedkova, N.G., Nazarov, V.V. Physicochemical basis of the sol-gel process giving selective layers of ultrafiltration ceramic membranes from zirconia hydrosol. Glass Ceram 52, 308–311 (1995). https://doi.org/10.1007/BF00678635

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  • DOI: https://doi.org/10.1007/BF00678635

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