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Porous hydroxyapatite-TiO2 nanocomposites from natural phosphates and their decolorization properties

Photoactive hydroxyapatite-TiO2 nanopowders

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Abstract

Titanium dioxide-hydroxyapatite nanopowders were prepared by the simultaneous gelation of a titanium alkoxide and precipitation of a redisolved natural phosphate mineral. Evolution of the crystallinity, porous features and surface reactivity of these powders as a function of Ti content and heating was studied. Optimal conditions were found for the preparation of a low-cost nanocomposite powder that was as effective as pure titania for the decolorization of methylene blue solutions.

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Correspondence to H. Bouyarmane, S. Saoiabi, I. El Hanbali, M. El Karbane, A. Rami, S. Masse, A. Laghzizil or T. Coradin.

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Bouyarmane, H., Saoiabi, S., El Hanbali, I. et al. Porous hydroxyapatite-TiO2 nanocomposites from natural phosphates and their decolorization properties. Eur. Phys. J. Spec. Top. 224, 1861–1869 (2015). https://doi.org/10.1140/epjst/e2015-02505-9

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  • DOI: https://doi.org/10.1140/epjst/e2015-02505-9

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