Calcium phosphate-based materials of natural origin showing photocatalytic activity

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 pho...

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Published inJournal of materials chemistry. A, Materials for energy and sustainability Vol. 1; no. 21; pp. 6452 - 6461
Main Authors Piccirillo, Clara, Dunnill, Charles W., Pullar, Robert C., Tobaldi, David M., Labrincha, João A., Parkin, Ivan P., Pintado, Manuela M., Castro, Paula M. L.
Format Journal Article
LanguageEnglish
Published 01.01.2013
Subjects
antibacterial properties
bones
calcium
cod (fish)
Gadus morhua
hydroxyapatite
light
photocatalysis
titanium dioxide
A, Atlantic
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Summary: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 sub(10)(PO sub(4)) sub( 6)(OH) sub(2) or HAp) also showed some photocatalytic properties and antibacterial activity.
Bibliography:ObjectType-Article-1
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ISSN:2050-7488
2050-7496
2050-7496
DOI:10.1039/c3ta10673j