Volume 40, Number 3, November I 1997
|Page(s)||299 - 304|
|Section||Condensed matter: structure, thermal and mechanical properties|
|Published online||01 September 2002|
Kinetics of particles adsorption processes driven by diffusion
Departament de Física Fonamental, Facultat de Física, Universitat de Barcelona,
Av. Diagonal 647, E-08028 Barcelona, Spain
2 Departament d'Enginyeria Química, ETSEQ, Universitat Rovira i Virgili, Carretera de Salou s/n. 43006 Tarragona, Spain
Accepted: 18 September 1997
The kinetics of the deposition of colloidal particles onto a solid surface is theoretically studied. We take into account both the diffusion of particles from the bulk as well as the geometrical aspects of the layer of adsorbed particles. We derive the first kinetic equation for the coverage of the surface (a generalized Langmuir equation) whose predictions are in agreement with recent simulation results where diffusion of particles from the bulk is explicitly considered.
PACS: 68.10.Jy – Kinetics (evaporation, adsorption, condensation, catalysis, etc.) / 82.70.Dd – Colloids / 05.70.Ln – Nonequilibrium thermodynamics, irreversible processes
© EDP Sciences, 1997
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