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Updated: Aug 14, 2026

Surface Properties of Synthesized Nanoporous Carbon and Silica Matrices
Published on: March 27, 2019
Free energy of interaction of sodium dodecyl sulfate in aqueous solution with carbon black surfaces
C M González-García1, M L González-Martín, A M Gallardo-Moreno
1Departamento de Ingeniería Química y Energética, Universidad de Extremadura, Badajoz, 06071, Spain.
Abstract:
The free energy of the adsorption process of an ionic surfactant from aqueous solutions onto a set of carbon blacks in the range of low concentrations was evaluated using the model proposed by van Oss and co-workers. The obtained results indicated that the free energy of interaction between adsorbent and adsorbate through water results mainly from Lifshitz-van der Waals and electrostatic interactions, and its value showed a good correspondence with that previously found from a combination of the classical measurements of adsorption isotherms and the Langmuir model.
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