Condensed Matter


Tracer Diffusion in Hard-Sphere Colloidal Suspensions

Authors: S. S. L. Peppin

A theory of tracer diffusion in hard-sphere suspensions is developed by using irreversible thermodynamics to obtain a colloidal version of the Kedem-Katchalsky equations. Onsager reciprocity yields relationships between the cross diffusion coefficients of the particles and the reflection coefficient of the colloidal suspension. The theory is illustrated by modelling a self-forming colloidal membrane that filters tracer impurities from the pore fluid.

Comments: 23 Pages.

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[v1] 2017-07-25 11:42:59

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