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Title Sol-Gel Synthesis and Characterization of Cerium Substituted Calcium Hydroxyapatite
Authors Bogdanoviciene, I.
Kareiva, A.
Misevicius, M.
Bauermeistere, L.
Viksna, A.
Gross, K.A.
Beganskiene, A.
ORCID
Keywords Calcium hydroxyapatite
Sol-gel processing
Cerium substitution effects
Type Conference Papers
Date of Issue 2012
URI http://essuir.sumdu.edu.ua/handle/123456789/34936
Publisher Sumy State University
License
Citation Sol-Gel Synthesis and Characterization of Cerium Substituted Calcium Hydroxyapatite / I. Bogdanoviciene, A. Kareiva, M. Misevicius et al. // Nanomaterials: Applications & Properties (NAP-2012) : 2-nd International conference, Alushta, the Crimea, September 17-22, 2012 / Edited by: A. Pogrebnjak. - Sumy : Sumy State University, 2012. - V. 1, No2. - 02NNBM02-02NNBM02
Abstract In this study, an aqueous sol-gel chemistry route based on phosphoric acid as the phosphorus precursor, calcium acetate monohydrate and cerium (III) nitrate hexahydrate as source of calcium and cerium ions, respectively, have been used to prepare cerium-substituted calcium hydroxyapatite (CHAp) powders. The tartaric acid was used as complexing agent in the sol-gel processing. The final products were obtained by calcination of the dry precursor gels for 5 h at 1000 °C. The phase transformations, composition, and structural changes in the polycrystalline samples were studied by infrared spectroscopy (IR), X-ray powder diffraction analysis (XRD), scanning electron microscopy (SEM), UV-visible reflection spectroscopy and luminescence measurements. It was demonstrated, however, that the high substitution of calcium by cerium does not proceed in the CHAp. The reflectance spectra of Ce substituted CHAp show nearly 100% reflection in the wavelength range of 450-800 nm. The luminescent properties of these samples were also investigated. When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/34936
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