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UNIVERSITY OF BUCHAREST
FACULTY OF PHYSICS Guest
2024-11-24 9:39 |
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Conference: Bucharest University Faculty of Physics 2011 Meeting
Section: Atmosphere and Earth Science; Environment Protection
Title:
Europium doped hydroxyapatite for applications in enviromental field
Authors:
Liliana Violeta Constantin (1), Simona Iconaru (2), Carmen Ciobanu (2)
Affiliation:
(1)Faculty of Physics, University of Bucharest,. P.O. Box Mg. 11, 76900 Bucharest Magurele, Romania
(2)National Institute of Materials Physics, P.O. box MG-7, Bucharest-Magurele, Ilfov, 077125, Romania.
E-mail
ciobanu_carmen83@yahoo.com
Keywords:
hydroxyapatite, europium, nanoparticles
Abstract:
The family of calcium phosphates is important for the large number of compounds involved and their influence in nature. Calcium phosphates can appear in different forms: hydrates, hydroxides or anhydrous. It is therefore necessary to develop scientific research on phosphate apatites and seek to prepare porous materials that can effectively remove inorganic pollutants (heavy metals, fluoride). In this work, we synthesized the properties of bioactive nanocrystalline hydroxyapatite (HAp), Ca10(PO4)6(OH)2 ceramic powder and nanocrystalline HAp doped with europium (III). The structure, morphology and optical properties were characterized by Xray diffraction (XRD), transmission electron microscopy (TEM), scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), and Fourier transform infrared spectroscopy (FT-IR). The XRD results reveal that the obtained Eu: HAp shows the characteristic peaks of hydroxyapatite in a hexagonal lattice structure. The results indicated that Eu3+ has been successfully doped into the framework of HAp.
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