Тип публикации: статья из журнала

Год издания: 2011

Идентификатор DOI: 10.1016/j.colsurfa.2010.09.033

Ключевые слова: CtaB, emulsion, Hofmeister effect, Ion-specific effect, Toluene-water, zeta potential

Аннотация: In this paper, we describe an experimental verification of the hypothesis of ion-specificity in counterion co-adsorption for cetyltrimethylammonium bromide (CTAB) at toluene-water interface (Hofmeister effect). For this purpose, toluene-in-water emulsions stabilised with CTAB in the absence and presence of inorganic electrolytes (NaBr, NaNO₃, NaF and NaClO₄), were used. Zeta potential measurements of the emulsions confirm both charging of the interface with surface-active cetyltrimethylammonium cation (CTA⁺), and anion dependence of the zeta potential. Electrokinetic measurements as a probe of diffuse layer potential show little effect of interfacial ion-specificity. © 2010 Elsevier B.V.

Журнал: Colloids and Surfaces A: Physicochemical and Engineering Aspects

Выпуск журнала: Т. 376, № 1-3

Номера страниц: 122-126

ISSN журнала: 09277757

Издатель: Elsevier Science Publishing Company, Inc.

• Wojciechowski K. (Department of Microbioanalytics,Faculty of Chemistry,Warsaw University of Technology)
• Bitner A. (Department of Microbioanalytics,Faculty of Chemistry,Warsaw University of Technology)
• Z̈ubrowska M. (Department of Microbioanalytics,Faculty of Chemistry,Warsaw University of Technology)
• Warszyński P. (Institute of Catalysis and Surface Chemistry,Polish Academy of Sciences)

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