Surface Charging and Points of Zero Charge

Surface Charging and Points of Zero Charge

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Features

  • Builds on the authors’ classic Chemical Properties of Material Surfaces
  • Points the way for further research with tried methods and collected data that will save researchers infinite hours
  • Includes new material that references all the significant advances captured in the literature
  • Offers a series of useful tables directly and indirectly related to surface charging, including data covering particle size, morphology, and specific surface area

Summary

The Most Detailed Resource Available on Points of Zero Charge

With their work growing in complexity, chemists involved with surface phenomena-related projects have outgrown the common resources available to them on points of zero charge (PZC) of oxides. Reporting on a limited number of materials in a limited number of scenarios, these resources often leave scientists wondering if the variances reported in the results they depend upon are due to actual differences in properties among particular samples or due to differences between isoelectric points (IEP) and points of zero charges obtained by titration.

Taking on the monumental task of building a complete reference, Marek Kosmulski, a leading authority in the field of surface chemistry (Hirsch index of 22), takes a new approach to provide chemists with the most detailed resource on the points of zero charge of oxides available to date.

Surface Charging and Points of Zero Charge presents PZC data on well-defined specimens of materials sorted by trademark, manufacturer (commercial materials), location (natural materials), and specific recipe (synthetic materials). The text emphasizes the comparison between particular results obtained for different portions of the same or very similar material.

Synthesizing information published in research reports over the past few decades, this invaluable reference:

  • Characterizes materials in terms of thermochemical data, chemical composition (level of impurities), crystallographic structure, specific surface area (various methods), particular size, and morphology
  • Provides additional references to more detailed sample characterization (SEM and TEM images, XRD patterns, and particle size distributions)
  • Reviews the PZC and IEP--with all possible details regarding the method, type of instrument, and experimental conditions
  • Pays special attention to correlations of the PZC and IEP with other physical quantities and properties, surface charging in mixed and nonaqueous solvents, surface charging at high ionic strengths, and ion-specificity in 1-1 electrolytes

All available sources were used to obtain the data in this reference making it the definitive resource on PZC/IEP. Destined to become a classic, Surface Charging and Points of Zero Charge points the way for further research with tried and true methods that help researchers avoid the doubt that can lead to countless hours of unnecessary research.

Erratum for this volume can be found on the author's website.

Table of Contents

Preface

INTRODUCTION

Nomenclature

Scope

Inert Electrolytes

The Significance of Parks' Review

Structure of Adsorbents

Solubility

Solid Phase Transformation at Room Temperature in Contact with Solution

Solid Phase Transformation on Heating

Kinetics

Solution Chemistry – pH Scale

Very Dilute Solutions

Speciation in Solution

METHODS

Experimental Setup in Electrokinetic Measurements

Experimental Conditions in Electrokinetic Measurements

CO2 and Silica Problem

Experimental Results:  Electrokinetic Potential

Experimental Conditions: Titration

Results: Titration

Relation of Results Obtained by Different Methods

Other Methods

Adsorption Models

COMPILATION OF PZCs/IEPs

Simple Oxides

Aluminosilicates, Phyllosilicates, Clays and Clay Minerals

Mixed Oxides

Salts

Glasses

Carbon and Carbon-Rich Materials

Other Inorganic Materials

Coatings

Well-Defined Low-Molecular-Weight Organic Compounds

Polymers (Macroscopic Specimens)

Latexes

Natural High-Molecular-Weight Organic Substances

Microorganisms

Metals

Literature Intentionally Ignored

Temperature Effect

Pressure Effect

Compilations of PZC of Various Materials

Correlations

Mixed Water-Organic Solvents

Nonaqueous Solvents

Conclusion

ION SPECIFICITY

Affinity Series

Uptake of 1-1 Electrolyte Ions at or Near the PZC

High Ionic Strength

Appendix

References