Abstract
In this paper, synthesis of HAp particles with Dandelion-like morphology, a unique morphology rarely reported previously has been studied via a micelle-directed hydrothermal method. The phase composition, morphology and particle size of synthesized powder were investigated using X-ray diffraction (XRD) and Fourier transform infrared spectroscopy (FTIR) techniques and Scanning electron microscopy (SEM). Results revealed that cationic surfactant cetyltrimethylammonium bromide (CTAB) and non-ionic co-surfactant polyethylene glycol 600 (PEG 600) can act as template and co-template, respectively for synthesis of dandelion-like HAp. SEM observations showed HAp crystals have a uniform dandelion-like morphology with an average diameter of about 100-150 nm and aspect ratio of about 20 for each tooth. Fourier transform infrared spectroscopy study revealed that a certain level of carbonate substitution has taken place in the product. The template action of CTAB and co-template action of PEG 600 used to regulate the nucleation and crystal growth are discussed.
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