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Vacancy ordered gamma-Fe2O3 nanoparticles functionalized with nanohydroxyapatite: XRD, FTIR, TEM, XPS and Mossbauer studies
Vacancy ordered gamma-Fe2O3 nanoparticles functionalized with nanohydroxyapatite: XRD, FTIR, TEM, XPS and Mossbauer studies
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Fecha
2016
Autores
Guivar, JAR
Sanches, EA
Bruns, F
Sadrollahi, E
Morales, MA
Lopez, EO
Litterst, FJ
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Editor
Elsevier B.V.
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Abstracto
Vacancy ordered maghemite (γ-Fe2O3) nanoparticles functionalized with nanohydroxyapatite (HAp – Ca10(PO4) 6(OH)2) have been successfully synthesized using an inexpensive co-precipitation chemical route. Evidence for the presence of vacancy order in maghemite was shown by the superstructure lines observed in X-ray diffraction. The adsorption of carboxyl groups of citric acid (C6H8O7) onto γ-Fe2O3 nanoparticles was investigated by FTIR, XPS and Mössbauer spectroscopy.
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Palabras clave
Nanohydroxyapatite,
Maghemite nanoparticles,
Le-Bail refinement