Study on preparation and structure of chrysanthemum-shaped micron calcium carbonate based on inverse microemulsion

In this Letter, new chrysanthemum-shaped micrometre calcium carbonate was prepared by using CaCl2 aqueous solution + NH3H2O + CTAB + n-butanol + n-hexane inverse microemulsion system. Scanning electron microscope, X-ray powder diffraction, and Fourier transform infrared spectroscopy were used to characterise the morphology and structure of the micron calcium carbonate. Further, the formation mechanism of chrysanthemum-shaped micron calcium carbonate was discussed.