Calcium phosphate-based materials of natural origin showing photocatalytic activity

Clara Piccirillo*, Charles W. Dunnill, Robert C. Pullar, David M. Tobaldi, João A. Labrincha, Ivan P. Parkin, Manuela M. Pintado, Paula M. L. Castro

*Autor correspondente para este trabalho

Resultado de pesquisarevisão de pares

43 Citações (Scopus)

Resumo

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.
Idioma originalEnglish
Páginas (de-até)6452-6461
Número de páginas10
RevistaJournal of Materials Chemistry A
Volume1
Número de emissão21
DOIs
Estado da publicaçãoPublished - 7 jun 2013

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