Abstract
The model of diffusion-controlled adsorption kinetics can be solved by different mathematical procedures. For the most important case of a Langmuir isotherm, useful solutions are summarized and extended and the ranges of application are given. New approximations are presented which can be applied to most experiments in practice.
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Abbreviations
- a i :
-
coefficients of the collocation solution
- a L :
-
Langmuir parameter
- a′ :
-
interaction parameter of the Frumkin isotherm
- α n :
-
coefficients of a power series
- c :
-
surfactant bulk concentration
- c 0 :
-
equilibrium bulk concentration
- D :
-
diffusion coefficient
- Γ :
-
surface concentration
- Γ 0 :
-
equilibrium surface concentration
- Γ t8 :
-
maximum surface concentration
- Γ( x ):
-
Gamma function
- t :
-
time
- θ :
-
dimensionless time
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Dedicated to the 60th birthday of G. Kretzschmar.
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Miller, R., Ziller, M. On the application of quantitative models of diffusion-controlled adsorption kinetics at fluid interfaces. Colloid & Polymer Sci 266, 532–538 (1988). https://doi.org/10.1007/BF01420764
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DOI: https://doi.org/10.1007/BF01420764