Electrokinetic Data: Approaches, Interpretations and ApplicationsReport as inadecuate




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Croatica Chemica Acta, Vol.80 No.3-4 November 2007. -

The article presents a review of the solid-liquid interface research with emphasis on the complementary role of electrokinetic data in the overall concept of the electrical interfacial layer EIL, potential energy of interaction and, consequently, colloidal stability of suspensions. The significance of electrokinetic zeta potential is particularly discussed. It is suggested that the absolute zeta potential values are hardly comparable from case to case. However, the isoelectric point IEP can be ascribed to a certain substance under defined conditions as a kind of material property. Selected theoretical tenets are involved in interpreting the solid-liquid interactions, including the surface complexation model, structure of the electrical interfacial layer and energy of surface interactions. Some cases are analyzed in more detail, such as simple oxides, mixed oxides, heterogeneous surfaces with two types of surface functional groups. Finally, several applications of electrokinetic data in ceramic processing, textile processing, and in natural water suspensions are described.

electrokinetic data; solid-liquid interface; electrical interfacial layer; colloidal stability; isoelectric point



Author: Jasenka Bišćan - ; Faculty of Textile Technology, University of Zagreb, Zagreb, Croatia

Source: http://hrcak.srce.hr/



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