Dynamic Electrophoretic Mobility of Spherical Colloidal Particles in Concentrated Suspensions

Journal of Colloid and Interface Science
Hiroyuki Ohshima

Abstract

A theory for the dynamic electrophoretic mobility &mgr; of spherical colloidal particles in concentrated suspensions in an oscillating electric field is proposed on the basis of Kuwabara's cell model. The dynamic mobility depends on the frequency omega of the applied electric field and the particle volume fraction phi as well as on the reduced particle radius kappaa (where kappa is the Debye-Hückel parameter and a is the particle radius) and the zeta potential zeta. A mobility formula which involves numerical integration is obtained for particles with zero permittivity and low zeta. It is found that the mobility magnitude decreases with decreasing kappaa as in the static case (omega = 0) and as in the single particle case (phi --> 0) and that it decreases with increasing omega as in the single particle case. However, the phi dependence of the mobility magnitude is much more complicated. Namely, for small kappaa the mobility magnitude decreases with increasing phi as in the static case. For large kappaa it increases with increasing phi. For moderate kappaa and not very low omega the mobility magnitude may exhibit a maximum. In all cases the omega dependence of the mobility magnitude becomes less as phi increases, that is, t...Continue Reading

References

Jan 1, 1997·Journal of Colloid and Interface Science·H Ohshima

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Citations

Jul 28, 2007·The Journal of Chemical Physics·Mathieu G McPhie, Gerhard Nägele
Sep 11, 2012·Journal of Colloid and Interface Science·Rafael RoaEmilio Ruiz-Reina
Mar 17, 2010·Journal of Colloid and Interface Science·Emilio Ruiz-Reina, Félix Carrique
Sep 22, 2007·Journal of Colloid and Interface Science·M L JiménezA V Delgado
Nov 28, 2006·Journal of Colloid and Interface Science·Jyh-Ping HsuEric Lee
Jun 13, 2006·Journal of Colloid and Interface Science·Filip StrubbeKristiaan Neyts
Mar 7, 2006·Journal of Colloid and Interface Science·Tian Hao, Richard E Riman
Nov 22, 2005·Colloids and Surfaces. B, Biointerfaces·Yasuhiro IshikawaHiroyuki Ohshima
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Mar 27, 1999·Journal of Colloid and Interface Science·H Ohshima, A S Dukhin
Mar 27, 1999·Journal of Colloid and Interface Science·H Ohshima
Jul 3, 2015·Langmuir : the ACS Journal of Surfaces and Colloids·M Alejandro GonzálezSilvia Ahualli
Mar 29, 2014·Langmuir : the ACS Journal of Surfaces and Colloids·Naga Neehar Dingari, Cullen R Buie
Sep 19, 2020·Polymers·Silvia AhualliÁngel V Delgado
Jul 16, 2014·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·Chunyu Shih, Ryoichi Yamamoto
Mar 6, 2021·Electrophoresis·Mansoureh RashidiAnne M Benneker
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Apr 20, 2010·The Journal of Physical Chemistry. B·Félix CarriqueAngel V Delgado
Jul 26, 2006·The Journal of Physical Chemistry. B·Emilio Ruiz-ReinaFelix Carrique
Sep 29, 2006·The Journal of Physical Chemistry. B·Emiliy K ZholkovskiyJacob H Masliyah
Sep 18, 2009·Langmuir : the ACS Journal of Surfaces and Colloids·B H Bradshaw-HajekL R White
Apr 17, 2010·Langmuir : the ACS Journal of Surfaces and Colloids·B H Bradshaw-HajekL R White
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Dec 14, 2005·Langmuir : the ACS Journal of Surfaces and Colloids·Hiroyuki Ohshima
Dec 27, 2005·The Journal of Physical Chemistry. B·Felix CarriqueEmilio Ruiz-Reina
Mar 24, 2006·The Journal of Physical Chemistry. B·Juan CuquejoFélix Carrique
Sep 15, 2006·The Journal of Physical Chemistry. B·Félix CarriqueAngel V Delgado

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