Version 1
: Received: 29 March 2024 / Approved: 1 April 2024 / Online: 1 April 2024 (10:11:39 CEST)
How to cite:
Qamhieh, K. Effect of Dielectric Constant on the Zeta Potential of Spherical Electric Double Layers. Preprints2024, 2024040012. https://doi.org/10.20944/preprints202404.0012.v1
Qamhieh, K. Effect of Dielectric Constant on the Zeta Potential of Spherical Electric Double Layers. Preprints 2024, 2024040012. https://doi.org/10.20944/preprints202404.0012.v1
Qamhieh, K. Effect of Dielectric Constant on the Zeta Potential of Spherical Electric Double Layers. Preprints2024, 2024040012. https://doi.org/10.20944/preprints202404.0012.v1
APA Style
Qamhieh, K. (2024). Effect of Dielectric Constant on the Zeta Potential of Spherical Electric Double Layers. Preprints. https://doi.org/10.20944/preprints202404.0012.v1
Chicago/Turabian Style
Qamhieh, K. 2024 "Effect of Dielectric Constant on the Zeta Potential of Spherical Electric Double Layers" Preprints. https://doi.org/10.20944/preprints202404.0012.v1
Abstract
Zeta potential refers to the electrokinetic potential present in colloidal systems, exerting significant influence on the diverse properties of nano-drug delivery systems. The impact of dielectric constant on the zeta potential and charge inversion of highly charged colloidal particles, immersed in a variety of solvents spanning from polar, such as water, to nonpolar solvents, and in the presence of multivalent salts, was investigated through primitive model Monte Carlo (MC) simulations. Zeta potential ξ is decreased as decreasing the dielectric constant of the solvent, and upon further increase in the salinity and the valency of the salt. At elevated levels of salt, the colloidal particles become overcharged, in all solvents. As a result, their apparent charge becomes opposite in sign to the stoichiometric charge. This reversal of charge intensifies until reaching a saturation point with further increase in salinity, as a result, their apparent charge becomes opposite in sign to the stoichiometric charge. This reversal of charge intensifies until reaching a saturation point with further increase in salinity.
Keywords
Colloidal particles; Zeta potential; Monte Carlo; dielectric constant; charge inversion
Subject
Physical Sciences, Chemical Physics
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
