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 (Ca 10(PO4)6(OH)2 or HAp) also showed some photocatalytic properties and antibacterial activity. © The Royal Society of Chemistry 2013.

Calcium phosphate-based materials of natural origin showing photocatalytic activity

Pullar R. C.;
2013-01-01

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 (Ca 10(PO4)6(OH)2 or HAp) also showed some photocatalytic properties and antibacterial activity. © The Royal Society of Chemistry 2013.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10278/3740089
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