reviewAdvances in Colloid and Interface ScienceAug 7, 2023HYBRID OA

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

MKMarek Kosmulski

Lublin University of Technology

PubMed
Indexed incrossrefpubmed

Abstract

Surfaces are often characterized by their points of zero charge (PZC) and isoelectric points (IEP). Different authors use these terms for different quantities, which may be equal to the actual PZC under certain conditions. Several popular methods lead to results which are inappropriately termed PZC. This present review is limited to zero-points obtained in the presence of inert electrolytes (halides, nitrates, and perchlorates of the 1st group metals). IEP are reported for all kinds of materials. PZC of metal oxides obtained as common intersection points of potentiometric curves for 3 or more ionic strengths (or by means of equivalent methods) are also reported, while the apparent PZC obtained by mass…

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Topics & keywords

Topics
Keywords
  • Point of zero charge
  • Electrolyte
  • Chemistry
  • Isoelectric point
  • Titration
  • Potentiometric titration
  • Ionic strength
  • End point
UN Sustainable Development Goals
  • Clean water and sanitation
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