Deposition kinetics of colloidal particles at an interface: Interplay of diffusion and gravity

J. Faraudo, J. Bafaluy, B. Senger, J. C. Voegel, P. Schaaf

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1 Citation (Scopus)

Abstract

A study was performed to develop a theoretical understanding of the relative role of diffusion and sedimentation in irreversible colloidal particle absorption. By analyzing the equations governing the diffusion and sedimentation processes, the relevant time scales of the adsorption process and the dimensionless numbers characterizing the transition from an adsorption kinetics dominated by bulk diffusion to that dominated by sedimentation were obtained. These general theoretical arguments were illustrated by analyzing a minimal hard sphere model including only the essential transport mechanisms of diffusion and sedimentation.
Original languageEnglish
Pages (from-to)11420-11428
JournalJournal of Chemical Physics
Volume119
DOIs
Publication statusPublished - 1 Dec 2003

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