Hostname: page-component-586b7cd67f-2plfb Total loading time: 0 Render date: 2024-11-29T03:48:47.249Z Has data issue: false hasContentIssue false
  • English
  • Français

Interaction of Fe-oxyhydroxide colloidal particles with montmorillonite

Published online by Cambridge University Press:  09 July 2018

E. A. Ferreiro ,
A. K. Helmy  and
S. G. De Bussetti
E. A. Ferreiro
Affiliation:
Universidad Nacional del Sur, 8000 Bahía Blanca, Repútblica Argentina
A. K. Helmy
Affiliation:
Universidad Nacional del Sur, 8000 Bahía Blanca, Repútblica Argentina
S. G. De Bussetti
Affiliation:
Universidad Nacional del Sur, 8000 Bahía Blanca, Repútblica Argentina
Get access Rights & Permissions [Opens in a new window]

Abstract

Interaction between positively charged Fe-oxyhydroxide (β-FeOOH) particles and negatively charged particles of montmorillonite was studied as a function of particle concentration, pH and time. The results showed that the clay particles appear to bridge between FeOOH particles leading to associations in which the ratio of positive to negative particles varied between 1.4 and 2.56 depending on pH and particle concentrations. The data could be represented by isotherms of interaction of the high affinity type and, together with the interaction kinetics, could be described by Langmuir type formulations.

Type
Research Article
Information
Clay Minerals , Volume 30 , Issue 3 , September 1995 , pp. 195 - 200
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1995

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.)

References

Adamczyk, Z., Siwek, B. & Zembala, M. (1992) Reversible and irreversible adsorption of particles on homogeneous surfaces. Colloids Surf. 62, 119–130.Google Scholar
Ferreiro, A.K. & Helmy, A.K. (1974) Flocculation of Na-montmorillonite by electrolytes. Clay Miner. 10, 203–213.Google Scholar
Harley, S., Thompson, D. W. & Vincent, B. (1992) The adsorption of small particles into larger particles of opposite charge. Colloid Surf 62, 163–176.Google Scholar
Helmy, A.K. & Ferreiro, E.A. (1974) Flocculation of NH4-montmorillonite by electrolytes. J. Electroanal. Chem. 57, 103–112.Google Scholar
Helmy, A.K. , Ferreiro, E.A. & de Bussetti, S.G. (1980) Dissociation of acid groups at the hydrous oxide/ aqueous interface.. phys. Chemie 261, 1065—1073.Google Scholar
Ohmari, M. & Matuevic, E. (1992) Preparation and properties of uniform coated inorganic colloidal particles: Silica on hematite. J. Coll. Interf Sci. 150, 594–598.Google Scholar
Swartzen-Allen, S.L. & Matijevic, E. (1975) Colloid and surface properties of clay suspensions. J. Coll. lnterf Sci. 50, 143–153.CrossRefGoogle Scholar
Vincent, B., Young, G.A. & Tadros, TH. F. (1980) Adsorption of small positive particles onto large negative particles in the presence of polymer. Part I.. J. Chem. Soc. Faraday 1. 76, 665–673.Google Scholar
Vincent, B., Jafelicci, M., Luckham, P.F. & Tadros, TH. F. (1980) Adsorption of small positive particles onto large negative particles in the presence of polymer. Part II. J. Chem. Soc. Faraday 1, 76, 674–682.Google Scholar