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Synthesis and characterisation of nanostructured silica-powellite-HAP composites
- Source :
- Journal of Materials Science. 50:577-586
- Publication Year :
- 2014
- Publisher :
- Springer Science and Business Media LLC, 2014.
-
Abstract
- Well-defined calcium molybdate (CaMoO4) and hydroxyapatite (HAP) nanocrystals were developed by thermal treatment on the surface of a SiO2–CaO–P2O5–MoO3 amorphous precursor synthesised at room-temperature by sol–gel route. The structural and morphological characterisaions were performed by several techniques: energy dispersive X-ray spectroscopy, thermal analyses (DTA/TGA), X-ray diffraction (XRD), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy, electron paramagnetic resonance. Complementary, Fourier transform infrared and Raman spectroscopies provided a clear picture regarding the short range order structure, emphasising beside the CaMoO4 phase development, the presence of HAP nanocrystals. The vibrational spectroscopic techniques proved to be valuable tools for evidencing very small HAP nanocrystallites that cannot be clearly observed by XRD and TEM analyses.
- Subjects :
- Materials science
Mechanical Engineering
Analytical chemistry
Thermal treatment
Molybdate
Amorphous solid
symbols.namesake
chemistry.chemical_compound
Chemical engineering
X-ray photoelectron spectroscopy
chemistry
Mechanics of Materials
Transmission electron microscopy
symbols
General Materials Science
Raman spectroscopy
Spectroscopy
Powellite
Subjects
Details
- ISSN :
- 15734803 and 00222461
- Volume :
- 50
- Database :
- OpenAIRE
- Journal :
- Journal of Materials Science
- Accession number :
- edsair.doi...........0de4300742956d0f100311ce4a784b68
- Full Text :
- https://doi.org/10.1007/s10853-014-8615-3