Piccirillo, ClaraDunnill, Charles W.Pullar, Robert C.Tobaldi, David M.Labrincha, João A.Parkin, Ivan P.Pintado, Manuela M.Castro, Paula M. L.2014-05-072014-05-072013PICCIRILLO, 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. 6452–64612050-7488http://hdl.handle.net/10400.14/14229Calcium 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.engjournal article10.1039/c3ta10673j2050-7496WOS:000318565700021