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The Effect of the Adsorption of Metal Ions on the Interfacial Behavior of Silicate Minerals

Published online by Cambridge University Press:  10 February 2011

Picheng Huang  and
Douglas W. Fuerstenau
Picheng Huang
Affiliation:
Current address: Hazen Research, Inc.4601 Indiana Street, Golden, CO 80403
Douglas W. Fuerstenau
Affiliation:
Department of Materials Science and Mineral Engineering, University of California, Berkeley, CA 94720
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Abstract

Because of its importance in the fields of environmental and mineral engineering, the adsorption mechanism of metal ions on oxides has been studied rather extensively using such techniques as titration, adsorption isotherm determination, flotation and spectroscopy. However, limited work has been done to compare the behavior of hydrophilic silicates with those that are naturally hydrophobic. Our investigation was undertaken to provide a better understanding of the adsorption mechanism of selected metal ions at the solid/liquid interface through simultaneous measurements of zeta potentials, adsorption densities and turbidity on colloidal suspensions of two silicate minerals, quartz and talc, as a function of pH, to delineate the effect of hydrophobicity and surface heterogeniety on these processes.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 432: Symposium S – Aqueous Chemistry and Geochemistry of Oxides , 1996 , 81
Copyright
Copyright © Materials Research Society 1997

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