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HomeAdvances in Science and TechnologyAdvances in Science and Technology Vol. 86Sol-Gel Synthesis and Characterization of...

Sol-Gel Synthesis and Characterization of Lanthanide-Substituted Nanostructured Calcium Hydroxyapatite

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Abstract:

In this study, nanostructured Ce- and Sm-substituted Ca10(PO4)6(OH)2 samples have been synthesized using an aqueous sol-gel chemistry route. For the characterization of obtained specimens, the XRD, SEM, UV-visible reflection and IR spectroscopy and luminescence measurements were recorded. It was shown that phase purity of the end products highly depends on the amount of lanthanide element. The reflectance of lanthanide-substituted calcium hydroxyapatite samples is wavelength independent in the wavelength range of 450-800 nm and equal almost 100%. The cerium-substituted samples show a significant decrease of transmission at ~300 nm. The characteristic samarium absorption line (~430 nm) is evident in the UV-vis reflection spectra of samarium-substituted hydroxyapatites.

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Periodical:

Advances in Science and Technology (Volume 86)

Pages:

22-27

DOI:

https://doi.org/10.4028/www.scientific.net/AST.86.22

Citation:

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Online since:

September 2012

Authors:

Irma Bogdanoviciene, Martynas Misevicius, Aivaras Kareiva, Karlis A. Gross, Thomas C.K. Yang, Guang Ting Pan, Hsu Wei Fang, Jen Chang Yang

Keywords:

Calcium Hydroxyapatite, Lanthanide Substitution, Nanoparticle, Sol-Gel Process

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