Electrostatic correlations in colloidal suspensions: Density profiles and effective charges beyond the Poisson-Boltzmann theory

被引：37

作者：

dos Santos, Alexandre P. ^{[1
]}

Diehl, Alexandre ^{[2
]}

Levin, Yan ^{[1
]}

机构：

[1] Univ Fed Rio Grande do Sul, Inst Fis, BR-91501970 Porto Alegre, RS, Brazil

[2] Univ Fed Pelotas, Inst Fis & Matemat, Dept Fis, BR-96010900 Pelotas, RS, Brazil

来源：

JOURNAL OF CHEMICAL PHYSICS | 2009年 / 130卷 / 12期

基金：

巴西圣保罗研究基金会;

关键词：

colloids; osmosis; suspensions; HYPERNETTED-CHAIN APPROXIMATION; ELECTRICAL DOUBLE-LAYER; MONTE-CARLO; FUNCTIONAL THEORY; ATTRACTION; PARTICLES; MODEL; COUNTERIONS; INVERSION; SURFACE;

D O I：

10.1063/1.3098556

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A theory is proposed which allows us to calculate the distribution of the multivalent counterions around a colloidal particle using the cell model. The results are compared with the Monte Carlo simulations and are found to be very accurate in the two asymptotic regimes, close to the colloidal particle and far from it. The theory allows to accurately calculate the osmotic pressure and the effective charge of colloidal particles with multivalent counterions.

引用

页数：4

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