The pH dependent surface charging and points of zero charge. VII. Update

Marek Kosmulski

doi:10.1016/j.cis.2017.10.005

The pH dependent surface charging and points of zero charge. VII. Update

Adv Colloid Interface Sci. 2018 Jan:251:115-138. doi: 10.1016/j.cis.2017.10.005. Epub 2017 Nov 3.

Author

Marek Kosmulski¹

Affiliation

¹ Lublin University of Technology, Nadbystrzycka 38, PL-20618 Lublin, Poland. Electronic address: m.kosmulski@pollub.pl.

PMID: 29153243
DOI: 10.1016/j.cis.2017.10.005

Abstract

The pristine points of zero charge (PZC) and isoelectric points (IEP) of metal oxides and IEP of other materials from the recent literature, and a few older results (overlooked in previous searches) are summarized. This study is an update of the previous compilations by the same author [Surface Charging and Points of Zero Charge, CRC, Boca Raton, 2009; J. Colloid Interface Sci. 337 (2009) 439; 353 (2011) 1; 426 (2014) 209]. The field has been very active, but most PZC and IEP are reported for materials, which are very well-documented already (silica, alumina, titania, iron oxides). IEP of (nominally) Gd₂O₃, NaTaO₃, and SrTiO₃ have been reported in the recent literature. Their IEP were not reported in older studies.

Keywords: Electrokinetic potential; Isoelectric point; Point of zero charge; Surface charge density; Zeta potential.

Publication types

Review