ELECTROPHORETIC MOBILITY OF A PARTICLE COATED WITH A CHARGED MEMBRANE - EFFECTS OF FIXED CHARGE AND DIELECTRIC-CONSTANT DISTRIBUTIONS

被引:20
|
作者
HSU, JP
FAN, YP
机构
[1] Department of Chemical Engineering, National Taiwan University, Taipei
关键词
POISSON-BOLTZMANN EQUATION; ELECTROPHORETIC MOBILITY; PLANAR PARTICLE; CHARGED MEMBRANE; FIXED CHARGE DISTRIBUTION; DIELECTRIC CONSTANT DISTRIBUTION;
D O I
10.1006/jcis.1995.1247
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 electrophoretic mobility of a particle coated with an ion-penetrable charged membrane in a uniform electric field is investigated. In particular, the effects of the distribution of fixed charges and that of the dielectric constant in the membrane phase on the electrophoretic mobility are investigated. The results of numerical simulation reveal that these effects can be significant. In particular, for a constant total amount of fixed charges, assuming a homogeneous fixed charge distribution may lead to an appreciable deviation. (C) 1995 Academic Press, Inc.
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页码:230 / 241
页数:12
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