Porous hydroxyapatite-TiO2 nanocomposites from natural phosphates and their decolorization properties
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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.
KeywordsMethylene Blue European Physical Journal Special Topic Inductively Couple Plasma Atomic Emission Spectroscopy Titania Particle Titanium Alkoxide
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- 16.S. El Asri, A. Laghzizil, A. Saoiabi, A. Alaoui, K. El Abbassi, R. MHamdi, T. Coradin, Colloids Surf. A 35, 73 (2009)Google Scholar