Sol-Gel Synthesis and Characterization of Cerium Substituted Calcium Hydroxyapatite
Electronic Archive of Sumy State University
Переглянути архів Інформація| Поле | Співвідношення | |
| Title |
Sol-Gel Synthesis and Characterization of Cerium Substituted Calcium Hydroxyapatite
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| Creator |
Bogdanoviciene, I.
Kareiva, A. Misevicius, M. Bauermeistere, L. Viksna, A. Gross, K.A. Beganskiene, A. |
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| Subject |
Calcium hydroxyapatite
Sol-gel processing Cerium substitution effects |
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| Description |
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. |
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| Publisher |
Sumy State University
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| Date |
2014-05-26T06:46:28Z
2014-05-26T06:46:28Z 2012 |
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| Type |
Article
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| Identifier |
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
http://essuir.sumdu.edu.ua/handle/123456789/34936 |
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| Language |
en
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