Polarity inversion of ζ-potential in concentrated colloidal Dispersions

Héctor M. Manzanilla-Granados; Felipe Jiménez-Ángeles; Marcelo Lozada-Cassou

doi:10.1021/jp2032324

Polarity inversion of ζ-potential in concentrated colloidal Dispersions

Héctor M. Manzanilla-Granados, Felipe Jiménez-Ángeles, Marcelo Lozada-Cassou^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

15 Scopus citations

Abstract

A concentrated colloidal dispersion is studied by applying an integral equations theory to the colloidal primitive model fluid. Important effects, attributed to large size and charge and to the finite concentration of colloidal particles, are found. We observe a polarity inversion of ζ-potential for concentrated colloidal dispersions, while it is not present for a single colloidal particle at infinite dilution. An excellent qualitative agreement between our theoretical predictions and our computer simulations is observed.

Original language	English (US)
Pages (from-to)	12094-12097
Number of pages	4
Journal	Journal of Physical Chemistry B
Volume	115
Issue number	42
DOIs	https://doi.org/10.1021/jp2032324
State	Published - Oct 27 2011
Externally published	Yes

ASJC Scopus subject areas

Physical and Theoretical Chemistry
Surfaces, Coatings and Films
Materials Chemistry

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abstract = "A concentrated colloidal dispersion is studied by applying an integral equations theory to the colloidal primitive model fluid. Important effects, attributed to large size and charge and to the finite concentration of colloidal particles, are found. We observe a polarity inversion of ζ-potential for concentrated colloidal dispersions, while it is not present for a single colloidal particle at infinite dilution. An excellent qualitative agreement between our theoretical predictions and our computer simulations is observed.",

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AU - Manzanilla-Granados, Héctor M.

AU - Jiménez-Ángeles, Felipe

AU - Lozada-Cassou, Marcelo

PY - 2011/10/27

Y1 - 2011/10/27

N2 - A concentrated colloidal dispersion is studied by applying an integral equations theory to the colloidal primitive model fluid. Important effects, attributed to large size and charge and to the finite concentration of colloidal particles, are found. We observe a polarity inversion of ζ-potential for concentrated colloidal dispersions, while it is not present for a single colloidal particle at infinite dilution. An excellent qualitative agreement between our theoretical predictions and our computer simulations is observed.

AB - A concentrated colloidal dispersion is studied by applying an integral equations theory to the colloidal primitive model fluid. Important effects, attributed to large size and charge and to the finite concentration of colloidal particles, are found. We observe a polarity inversion of ζ-potential for concentrated colloidal dispersions, while it is not present for a single colloidal particle at infinite dilution. An excellent qualitative agreement between our theoretical predictions and our computer simulations is observed.

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Polarity inversion of ζ-potential in concentrated colloidal Dispersions

Abstract

ASJC Scopus subject areas

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