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Resumo(s)
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, beta-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.
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Citação
PICCIRILLO, Clara ...[et al..] - Calcium phosphate-based materials of natural origin showing photocatalytic activity. Journal of Materials Chemistry A. ISSN 2050-7488. Vol. 1 (2013), p. 6452–6461
Editora
The Royal Society of Chemistry