DOI: https://doi.org/10.22184/1993-8578.2023.16.7-8.408.415

This work presents a method for the synthesis of calcium carbonate nanoparticles stabilized by methylcellulose. Calcium acetate was used as a precursor, and ammonium carbonate acted as a precipitant. The microstructure of the surface of the obtained samples was studied by scanning electron microscopy, and as a result it was found that the sample was represented by hollow spheres with a diameter of about 2 μm, the particle size of which varied from 40 to 250 nm. To determine the optimal type of interaction between particles and the stabilizer, computer quantum chemical modeling was carried out. It was found that the process of stabilization of nano-sized calcium carbonate and methylcellulose is energetically favorable. Also, to confirm the modeling results, the samples were examined by Fourier transform IR spectroscopy. Analysis of the results revealed that the interaction of CaCO3 nanoparticles occurs with the charged OH- group.