Structure and effective interactions in model colloidal suspensions: a molecular dynamics simulation study. (2nd September 2020)

• Record Type: Journal Article
• Authors: Padidela, Uday Kumar; Behera, Raghu Nath
• Is Part Of: Physics and chemistry of liquids. Volume 58:Number 5(2020)
• Page Start: 603
• Page End: 622
• Publication Date: 2020-09-02
• Subjects: Radial distribution function -- effective potential -- Ornstein Zernike equation -- isothermal compressibility -- self-diffusion coefficient; Liquids -- Periodicals; 530.4205
• DOI: 10.1080/00319104.2019.1625046
• Languages: English
• ISSNs: 0031-9104

Abstract

ABSTRACT: Structure and properties of model colloidal suspensions in bulk solutions have been investigated using classical molecular dynamics simulations. The system consists of spherical particles (macroscopic colloids and microscopic counterions and/or coions) in a continuum solvent and is described using the primitive model. Variations in different properties with system parameters (colloid size, charge, concentration etc.) have been investigated. An effective one-component model [Adelman SA. J. Chem. Phys. 1976;64:724–731] of the multicomponent suspension is used to calculate the effective colloid–colloid potential, which develops an attractive minimum with increase in charge, size and concentration of colloid.