Synthesis and characterization of nanoporous hydroxyapatite using cationic surfactants as templates

Nanoporous hydroxyapatite was synthesized utilizing cationic surfactants as templates. The effects of cetyltrimethylammonium bromide and reaction temperatures on the phase and morphology of HA were investigated by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), and transmiss...

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Bibliographic Details
Published inMaterials research bulletin Vol. 43; no. 8; pp. 2318 - 2326
Main Authors Li, Yanbao, Tjandra, Wiliana, Tam, Kam C.
Format Journal Article
LanguageEnglish
Published United States Elsevier Ltd 01.08.2008
Subjects
A. Microporous materials
A. Nanostructures
APATITES
BROMIDES
D. Microstructure
D. Phase equilibria
DIFFERENTIAL THERMAL ANALYSIS
FOURIER TRANSFORM SPECTROMETERS
FOURIER TRANSFORMATION
INFRARED SPECTRA
MATERIALS SCIENCE
MORPHOLOGY
NANOSTRUCTURES
PHASE DIAGRAMS
PHOSPHATES
PORE STRUCTURE
SURFACTANTS
SYNTHESIS
THERMAL GRAVIMETRIC ANALYSIS
TRANSMISSION ELECTRON MICROSCOPY
X-RAY DIFFRACTION
D. Microstructure
A. Microporous materials
A. Nanostructures
D. Phase equilibria
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Summary:Nanoporous hydroxyapatite was synthesized utilizing cationic surfactants as templates. The effects of cetyltrimethylammonium bromide and reaction temperatures on the phase and morphology of HA were investigated by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), and transmission electron microscopy (TEM). The thermal stability of nanoporous structures was studied by XRD and thermal analyzers (TGA/DTA), while the pore structure of HA was observed using high resolution TEM. It was found that the pore size was about 1 nm, and the pore structure of HA was thermally stable up to 700 °C and the pore size did not change with reaction temperature and CTAB:PO 4 3− ratio. The possible formation mechanism of nanoporous structure was proposed.
ISSN:0025-5408
1873-4227
DOI:10.1016/j.materresbull.2007.08.008