Abstract
Hydroxyapatite (HA) crystals with arambola-like structures were prepared by supersaturated urea-assisted solvothermal synthesis using double-facile surfactants. The products were characterized by X-ray diffraction, Fourier transform infrared spectroscopy, thermal gravimetric analysis, and scanning electron microscopy. Results revealed that the morphologies of the products, including micro-hexagonal prism, carambola-like structures, and microspheres could be well tailored by regulating the double-facile surfactants and reaction time. Na2EDTA exhibited a slight inhibitory effect on HA formation. Stearic acid adsorbs on the surface of HA to form a layer with long chains and act as mechanical barrier, indicating its excellent dispersibility.
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