Structural evolution of Eu-doped hydroxyapatite nanorods monitored by photoluminescence emission

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Andre, R. S.
Paris, E. C.
Gurgel, M. F. C.
Rosa, I. L. V.
Paiva-Santos, C. O. [UNESP]
Li, M. S.
Varela, José Arana [UNESP]
Longo, Elson [UNESP]

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Elsevier B.V. Sa


This paper reports the synthesis of Eu-doped hydroxyapatite (HA:Eu) resulting in particles with nanorod diameters from 9 to 26 nm using the microwave hydrothermal method (HTMW). Eu3+ ions were used as a marker in the HA network by basic hydrolysis followed by the HTMW treatment. The crystalline HA:Eu nanorod nature in a short-range order was detected by photoluminescence (PL) measurements from Eu3+ emission into the HA matrix. Thus, was possible to verify that HA crystallization is favored in a short structural order when the HTMW treatment time was increased from 0 to 40 min and that the Eu3+ substitution in the HA lattice is site-selective. (C) 2012 Elsevier B.V. All rights reserved.



Hydroxyapatite, Europium, Nanoparticles, Microwave-hydrothermal method, Photoluminescence

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Journal of Alloys and Compounds. Lausanne: Elsevier B.V. Sa, v. 531, p. 50-54, 2012.