ABSTRACT
This chapter presents a review of the investigations on the electrosurface properties of deposited oxide nanolayers and nanoporous glass membranes. One of the most important lines of investigations of various classes of nanodisperse systems is the study of the effect of structural parameters on adsorption and electrokinetics. The interest in this problem increased recently in the context of a wider use of nanodisperse materials in modern technologies. Examples of colloidal systems, which allow variations of their structural characteristics over a wide range, include ultrathin oxide layers deposited on oxide substrates and porous glass membranes. Porous glass membranes of different pore radii were prepared from phase-separated alkaline borosilicate glasses of various compositions by acid or acid–alkaline leaching. The surface charge and the electrokinetic characteristics of nanoporous and ultraporous glass membranes of various chemical compositions were also analyzed with respect to their dependence on pore size, pH, and salt level.
