Hostname: page-component-7dd5485656-2pp2p Total loading time: 0 Render date: 2025-10-29T21:18:15.479Z Has data issue: false hasContentIssue false
  • English
  • Français

Heterogeneity of Charge Density Distribution in Montmorillonite as Inferred from Cobalt Adsorption

Published online by Cambridge University Press:  01 July 2024

P. Peigneur ,
A. Maes  and
A. Cremers
P. Peigneur
Affiliation:
Centrum voor Oppervlaktescheikunde en Colloidale Scheikunde, Katholieke Universiteit Leuven de Croylaan 42, 3030 Heverlee, Belgium
A. Maes
Affiliation:
Centrum voor Oppervlaktescheikunde en Colloidale Scheikunde, Katholieke Universiteit Leuven de Croylaan 42, 3030 Heverlee, Belgium
A. Cremers
Affiliation:
Centrum voor Oppervlaktescheikunde en Colloidale Scheikunde, Katholieke Universiteit Leuven de Croylaan 42, 3030 Heverlee, Belgium
Get access Rights & Permissions [Opens in a new window]

Abstract

A comparison is made of the ion exchange behavior, towards the cobalt ion, of five sodium montmorillonite clays. The selectivity for the bivalent ion at low cobalt loading is correlated with the average dimensions of the particles in the various clays, as characterized by several methods. The data are interpreted in terms of a higher selectivity of the bivalent ions for the broken bonds located at the edges of the clay crystals. Using a model comprising two areas of different charge densities, the experimental differences in behavior can be predicted reasonably well.

Information

Type
Research Article
Information
Clays and Clay Minerals , Volume 23 , Issue 1 , February 1975 , pp. 71 - 75
Copyright
Copyright © 1975, The Clay Minerals Society

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

Article purchase

Temporarily unavailable

References

Banin, A. and Ravikovitch, S., (1966) Kinetics of reactions in the conversion of Na- or Ca-saturated clay to H-Al clay Clays and Clay Minerals, 14th Nat. Conf. Oxford Pergamon Press 193–204.CrossRefGoogle Scholar
Barrer, R. M. and Klinowski, J., (1972) Ion exchange involving several groups of homogeneous sites J. chem. Soc. Faraday Trans. 68 73–87.CrossRefGoogle Scholar
Bolt, G. H., (1955) Ion adsorption by clays Soil Sci. 79 267–276.CrossRefGoogle Scholar
Bolt, G. H. and Page, A. L., (1965) Ion-exchange equations based on double layer theory Soil Sci. 99 357–361.CrossRefGoogle Scholar
Cremers, A. and Laudelout, H., (1965) Conductivité électrique des gels argimeus et anisométrie de leurs éléments J. Chim. phys 62 1155–1162.CrossRefGoogle Scholar
Eeckman, J. P. and Laudelout, H., (1961) Chemical stability of hydrogen montmorillonite suspensions Kolloid Zh. 178 99–107.CrossRefGoogle Scholar
Eriksson, E., (1952) Cation-exchange equilibria in clay minerals Soil Sci. 74 103–113.CrossRefGoogle Scholar
Foscolos, A. E. and Barshad, I., (1969) Equilibrium constants between both freshly prepared and aged H monmoril-lonites and chloride salt solutions Soit Sci. Soc. Am. Proc. 33 242–247.CrossRefGoogle Scholar
Gaines, G. L. and Thomas, H. C., (1953) Adsorption studies on clay minerals—II. A formulation of the thermodynamics of exchange adsorption J. chem. Phys. 21 714–718.CrossRefGoogle Scholar
Gilbert, M. and Laudelout, H., (1965) Exchange properties of hydrogen ions in clays Soil Sci. 100 157–162.CrossRefGoogle Scholar
Laudelout, H. Van Bladel, R. Bolt, G. H. and Page, A. L., (1968) Thermodynamics of heterovalent cation exchange reactions in amontmorillonite clay Trans. Faraday Soc. 64 1477–1488.CrossRefGoogle Scholar
Lyklema, J., (1971) The electrical double layer on oxides Croat, chem. Acta 43 249–260.Google Scholar
Pratt, P. F. Whittig, L. D. and Grover, B. L., (1962) Effect of pH on the sodium-calcium exchange equilibria in soils Soil Sci. Soc. Am. Proc. 26 227–230.CrossRefGoogle Scholar
Shainberg, I. and Kemper, W. D., (1966) Electrostatic forces between clay and cations as calculated and inferred from electrical conductivity Clays and Clay Minerals. 14th Nat. Conf. Oxford Pergamon Press 117–132.CrossRefGoogle Scholar
Van Bladel, R. Gaviria, G. and Laudelout, H., (1972) A comparison of the thermodynamic, double layer theory and empirical studies of the Na-Ca exchange equilibria in clay-water systems Proc. 4th. Int. Clay Conf. II 15–30.Google Scholar
Van Bladel, R. and Menzel, R., (1969) A thermodynamic study of sodium strontium exchange on Wyoming bentonite Proc. 3rd Int. Clay Conf. I 619–634.Google Scholar
Weiss, A. Mekler, A. Koch, G. and Hofman, U., (1956) Uber das anionenaustauschverögen der Tonmineralen Z. anorg. allg. Chem. 284 247–271.CrossRefGoogle Scholar