Vacancy ordered gamma-Fe2O3 nanoparticles functionalized with nanohydroxyapatite: XRD, FTIR, TEM, XPS and Mossbauer studies

• Autores: Guivar, JAR, Sanches, EA, Bruns, F, Sadrollahi, E, Morales, MA, Lopez, EO, Litterst, FJ
• Formato: artículo
• Fecha de Publicación: 2016
• Institución: Consejo Nacional de Ciencia Tecnología e Innovación
• Repositorio: CONCYTEC-Institucional
• Lenguaje: inglés
• OAI Identifier: oai:repositorio.concytec.gob.pe:20.500.12390/1002
• Enlace del recurso: https://hdl.handle.net/20.500.12390/1002; https://doi.org/10.1016/j.apsusc.2016.07.157
• Nivel de acceso: acceso abierto
• Materia: Nanohydroxyapatite; Maghemite nanoparticles; Le-Bail refinement; https://purl.org/pe-repo/ocde/ford#2.10.01

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.