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Issue 21, 2013
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Calcium phosphate-based materials of natural origin showing photocatalytic activity

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Abstract

Calcium phosphate based materials of natural origin with photocatalytic properties were produced. Bones of Atlantic cod fish were treated in appropriate solutions (either Ca- or Ti-containing salts) and successively annealed. Results showed multiphasic materials (hydroxyapatite, β-tricalcium phosphate and anatase titania) with excellent photocatalytic performance under both UV and visible light, with an anatase concentration of only about 2 mol%. Results with such a low amount of anatase have never been reported before for a calcium phosphate-based material; this is attributed to the presence of anatase being mainly on the surface. Single-phase hydroxyapatite (Ca10(PO4)6(OH)2 or HAp) also showed some photocatalytic properties and antibacterial activity.

Graphical abstract: Calcium phosphate-based materials of natural origin showing photocatalytic activity

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Supplementary files

Article information


Submitted
14 Feb 2013
Accepted
09 Apr 2013
First published
10 Apr 2013

J. Mater. Chem. A, 2013,1, 6452-6461
Article type
Paper

Calcium phosphate-based materials of natural origin showing photocatalytic activity

C. Piccirillo, C. W. Dunnill, R. C. Pullar, D. M. Tobaldi, J. A. Labrincha, I. P. Parkin, M. M. Pintado and P. M. L. Castro, J. Mater. Chem. A, 2013, 1, 6452
DOI: 10.1039/C3TA10673J

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