Diffusiophoretic velocity of a large spherical colloidal particle in a solution of general electrolytes

被引：17

作者：

Ohshima, Hiroyuki ^{[1
]}

机构：

[1] Tokyo Univ Sci, Fac Pharmaceut Sci, 2641 Yamazaki Noda, Chiba 2788510, Japan

来源：

COLLOID AND POLYMER SCIENCE | 2021年 / 299卷 / 12期

关键词：

Diffusiophoretic velocity; Diffusiophoresis; Spherical particle; Zeta potential; ELECTROPHORETIC MOBILITY; RIGID SPHERE; DILUTE;

D O I：

10.1007/s00396-021-04898-3

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：

The general expression is derived for the diffusiophoretic velocity of a large spherical colloidal particle of radius a in a concentration gradient of general electrolytes of Debye-Huckel parameter kappa. On the basis of this expression, simple approximate analytic expressions for the diffusiophoretic velocity correct to the order of (1/kappa a)(0) are derived, which can be applied for large particles with kappa a >= 50 at arbitrary values of the particle zeta potential with negligible errors.

引用

页码：1877 / 1884

页数：8

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