Abstract
Cubic calcium carbonate nanoparticles with hydrophobic properties were prepared by a carbonation route in the presence of dodecanoic acid at 20 °C. The as-prepared products were characterized by transmission electron microscopy (TEM), Fourier transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD) and contact angle analysis. It was found that dodecanoic acid not only inhibited the growth of CaCO 3 particles but also changed the surface properties of the final products. The effects of the weight ratio of DA to CaCO 3, the calcium hydroxide concentration and temperature on the morphologies of the as-prepared calcium carbonate were systematically studied. The results showed that temperature, the weight ratio of DA to CaCO 3 and the calcium hydroxide concentration are important parameters for the preparation of cubic calcium carbonate nanoparticles with hydrophobic properties.
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