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http://hdl.handle.net/10773/19315
Title: | Calcium phosphate-based materials of natural origin showing photocatalytic activity |
Author: | Piccirillo, Clara Dunnill, Charles W. Pullar, Robert C. Tobaldi, David M. Labrincha, Joao A. Parkin, Ivan P. Pintado, Manuela M. Castro, Paula M. L. |
Keywords: | CHEMICAL-VAPOR-DEPOSITION THIN-FILMS HYDROXYAPATITE COATINGS TRICALCIUM PHOSPHATE UV-IRRADIATION ANATASE TIO2 PHASE-CHANGE TITANIA SURFACE DECOMPOSITION |
Issue Date: | 2013 |
Publisher: | ROYAL SOC CHEMISTRY |
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, 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. |
Peer review: | yes |
URI: | http://hdl.handle.net/10773/19315 |
DOI: | 10.1039/c3ta10673j |
ISSN: | 2050-7488 |
Publisher Version: | 10.1039/c3ta10673j |
Appears in Collections: | CICECO - Artigos |
Files in This Item:
File | Description | Size | Format | |
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Calcium phosphate-based materials of natural origin showing photocatalytic activity_10.1039c3ta10673j.pdf | 614.61 kB | Adobe PDF |
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