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Free Energy of Interaction of Sodium Dodecyl Sulfate in Aqueous Solution with Carbon Black Surfaces

✍ Scribed by C.M. González-Garcı́a; M.L. González-Martı́n; A.M. Gallardo-Moreno; V. Gómez-Serrano; L. Labajos-Broncano; J.M. Bruque

Publisher
Elsevier Science
Year
2002
Tongue
English
Weight
113 KB
Volume
248
Category
Article
ISSN
0021-9797

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✦ Synopsis

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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