On the theory of adsorption kinetics of ionic sufactants at fluid interfaces 4. Deceleration of the adsorption rate due to non-equilibrium distribution of adsorbed ions in the diffuse layer |
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| Authors: | R Miller G Kretzschmar S S Dukhin |
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| Institution: | (1) Present address: Max-Planck-Institut für Kolloid- und Grenzflächenforschung, Rudower Chaussee 5, 12489 Berlin, Germany;(2) Institute of Colloid and Water Chemistry, Ukrainian Academy of Sciences, Kiev, Ukraine |
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| Abstract: | An approximate analytical solution is obtained for the adsorption kinetics equation derived earlier. On the basis of these relations the importance of the consideration of a non-equilibrium diffuse layer has been shown. To describe the retarded adsorption kinetics the distribution of adsorbed ions in the diffuse layer section of multivalent surfactant ions has been taken into account. The rate of adsorption calculated for a non-ionic surfactant is compared with the adsorption rate for monovalent and bivalent ionic surfactants, respectively. |
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| Keywords: | Adsorption kinetics ionic surfactants non-equilibrium electric double layer |
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