Simulation of size distribution functions evolution in colloidal solutions of zinc oxide nanoparticles

摘要

The paper is devoted to the problem of theoretical description and modeling of the nanoparticles size distribution functions evolution. Colloidal solutions of spherical zinc oxide nanoparticles with typical dimensions of 40 - 100 nm are considered. The modified DLVO theory is used to find an analytical solution for the interaction force between nanoparticles. The resulting expression is implemented into a numerical simulation program based on Langevin dynamics method for modeling the process of nanoparticle coagulation. The character of the dependences obtained in the limits of applicability of the model corresponds well to the experimentally determined curves for similar systems.