Preparation of high specific surface area hydroxyapatite for environmental applications - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Journal of Materials Science Année : 2007

Preparation of high specific surface area hydroxyapatite for environmental applications

Résumé

We report the preparation of hydroxyapatite in powdered form by aqueous reaction of calcium nitrate or hydroxide with phosphate ion at room temperature. With a slow maturation step of 48 h avoiding heat, the resulting products show large specific surface areas above 150 m(2)/g. The specific surface areas also depend on stirring speed with a maximum observed with gentle mixing. Ageing causes a decrease in specific surface area which tends to stabilize near 100 m(2)/g following a 1 year period. The hydroxyapatite may be spray dried and conserve interesting physical properties for environmental applications.
Fichier principal
Vignette du fichier
preparation-of-high-specific.pdf (261.24 Ko) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)
Loading...

Dates et versions

hal-01634392 , version 1 (01-03-2019)

Identifiants

Citer

Cédric Verwilghen, Sébastien Rio, Ange Nzihou, Daniel Gauthier, Gilles Flamant, et al.. Preparation of high specific surface area hydroxyapatite for environmental applications. Journal of Materials Science, 2007, 42 (15), p. 6062-6066. ⟨10.1007/s10853-006-1160-y⟩. ⟨hal-01634392⟩
96 Consultations
509 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More