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

doi:10.1039/c3ta10673j

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

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

54 Citations (Scopus)

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, 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.

Original language	English
Pages (from-to)	6452-6461
Number of pages	10
Journal	Journal of Materials Chemistry A
Volume	1
Issue number	21
DOIs	https://doi.org/10.1039/c3ta10673j
Publication status	Published - 7 Jun 2013

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10.1039/c3ta10673j

http://hdl.handle.net/10400.14/14229

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title = "Calcium phosphate-based materials of natural origin showing photocatalytic activity",

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, 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.",

author = "Clara Piccirillo and Dunnill, {Charles W.} and Pullar, {Robert C.} and Tobaldi, {David M.} and Labrincha, {Jo{\~a}o A.} and Parkin, {Ivan P.} and Pintado, {Manuela M.} and Castro, {Paula M. L.}",

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doi = "10.1039/c3ta10673j",

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T1 - Calcium phosphate-based materials of natural origin showing photocatalytic activity

AU - Piccirillo, Clara

AU - Dunnill, Charles W.

AU - Pullar, Robert C.

AU - Tobaldi, David M.

AU - Labrincha, João A.

AU - Parkin, Ivan P.

AU - Pintado, Manuela M.

AU - Castro, Paula M. L.

PY - 2013/6/7

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N2 - 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.

AB - 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.

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DO - 10.1039/c3ta10673j

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Calcium phosphate-based materials of natural origin showing photocatalytic activity

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