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 journalArticlepeer-review

14 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 languageEnglish (US)
Pages (from-to)12094-12097
Number of pages4
JournalJournal of Physical Chemistry B
Volume115
Issue number42
DOIs
StatePublished - Oct 27 2011
Externally publishedYes

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Surfaces, Coatings and Films
  • Materials Chemistry

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