Interaction between β-cyclodextrin and crystallization of calcium carbonate

Based on the basic principles of biomineralization, a novel aragonite (CaCO3) with specific morphology was synthesized under the control of beta-cyclodextrin by the biomimetic method. In our experiments, the beta-cyclodextrin were used as the organic matrix. The obtained composite CaCO3 with small amount of beta-cyclodextrin were characterized by X-ray powder diffraction (XRD) analysis and scanning electronic microscopy (SEM). Furthermore, according to the results of Fourier transform infrared spectroscopy (FT-IR) and measurement of conductance ratios, the possible mechanism of the interaction between beta-cyclodextrin and CaCO3 during the CaCO3 formation process was discussed.