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

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 w...

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Veröffentlicht in:	The European physical journal. ST, Special topics Special topics, 2015-07, Vol.224 (9), p.1861-1869
Hauptverfasser:	Bouyarmane, H., Saoiabi, S., El Hanbali, I., El Karbane, M., Rami, A., Masse, S., Laghzizil, A., Coradin, T.
Format:	Artikel
Sprache:	eng
Schlagworte:	Advances in Design and Modeling of Porous Materials Atomic Classical and Continuum Physics Condensed Matter Physics Materials Science Measurement Science and Instrumentation Molecular Optical and Plasma Physics Physics Physics and Astronomy Regular Article
Online-Zugang:	Volltext
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Beschreibung
Zusammenfassung:	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.
ISSN:	1951-6355 1951-6401
DOI:	10.1140/epjst/e2015-02505-9