Jump to main content
Jump to site search

Issue 29, 2014
Previous Article Next Article

Structural, textural and acid–base properties of carbonate-containing hydroxyapatites

Author affiliations

Abstract

Carbonate-containing hydroxyapatites with different Ca/P ratios and optionally containing Na+ cations were successfully synthesized using a precipitation method. The solids were extensively characterized by XRD, LEIS, XPS, IR, TGA and NMR. Further, their acid–base properties were determined by NH3-TPD, PEA-XPS, CO2-TPD and by pulsed liquid chromatography using benzoic acid as a probe. The so-obtained structural, textural and acid–base properties could be finely correlated to give a clear picture of the system. The acidic properties of hydroxyapatites were attributed to Ca2+, surface HPO42− and OH vacancies and the basic properties were attributed to PO43−, OH and CaO species. The fine-tuning of the amount, of the nature and the strength of acid–base properties derived by varying the carbonate content in hydroxyapatites can find applications in catalysis, which was illustrated by isopropanol reactivity.

Graphical abstract: Structural, textural and acid–base properties of carbonate-containing hydroxyapatites

Back to tab navigation

Supplementary files

Publication details

The article was received on 03 Apr 2014, accepted on 06 May 2014 and first published on 07 May 2014


Article type: Paper
DOI: 10.1039/C4TA01628A
Author version available: Download Author version (PDF)
Citation: J. Mater. Chem. A, 2014,2, 11073-11090
  •   Request permissions

    Structural, textural and acid–base properties of carbonate-containing hydroxyapatites

    L. Silvester, J. Lamonier, R. Vannier, C. Lamonier, M. Capron, A. Mamede, F. Pourpoint, A. Gervasini and F. Dumeignil, J. Mater. Chem. A, 2014, 2, 11073
    DOI: 10.1039/C4TA01628A

Search articles by author

Spotlight

Advertisements