Hostname: page-component-848d4c4894-pjpqr Total loading time: 0 Render date: 2024-06-20T07:04:50.880Z Has data issue: false hasContentIssue false
  • English
  • Français

Influence of Glycine on Cu2+ Adsorption by Microcrystalline Gibbsite and Boehmite

Published online by Cambridge University Press:  02 April 2024

M. B. McBride
M. B. McBride*
Affiliation:
Department of Agronomy, Cornell University, Ithaca, New York 14853
Get access Rights & Permissions [Opens in a new window]

Abstract

The adsorption of Cu2+ on microcrystalline gibbsite and boehmite from aqueous solutions having 2/1 and 5/1 glycine/Cu ratios has been studied using electron spin resonance (ESR). The presence of glycine inhibited metal adsorption on gibbsite above pH 5, apparently by reducing Cu hydrolysis. The preferred adsorbed species on gibbsite and boehmite, based upon the ESR parameters, were probably Cu(gly)+ and Cu(gly)20, respectively. In both experiments, rigidly-bound ternary complexes formed with Cu2+ simultaneously bonding to the surface and one or more ligands. A large excess of glycine destabilized the ternary complex and caused the desorption of Cu2+. The preferred orientation of the Cu complex on gibbsite suggests that the adsorption occurred at crystal steps and that the glycine molecule hydrogen bonded to hydroxyls of the (001) surface.

Keywords

AdsorptionBoehmiteCopperElectron spin resonanceGibbsiteGlycineHydrolysis
Type
Research Article
Information
Clays and Clay Minerals , Volume 33 , Issue 5 , October 1985 , pp. 397 - 402
Copyright
Copyright © 1985, 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.)

References

Baes, C. F. and Mesmer, R. E., 1976 The Hydrolysis of Cations New York Wiley-Interscience.Google Scholar
Bleam, W. F. and McBride, M. B., 1985 Cluster formation versus isolated-site adsorption. A study of Mn(II) and Mg(II) adsorption on boehmite and goethite J. Colloid Interface Sci. 103 124–132.CrossRefGoogle Scholar
Bourg, A. C. M., Joss, S. and Schindler, P. W., 1979 Ternary surface complexes. 2. Complex formation in the system silira-Cu(II)-2,2 bipyridyl Chimia 33 19–21.Google Scholar
Bourg, A. C. M. and Schindler, P. W., 1979 Effect of eth- ylene-diaminetetraacetic acid on the adsorption of copper(II) at amorphous silica Inorg. Nucl. Chem. Letters 15 225–229.CrossRefGoogle Scholar
Clark, C. J. and McBride, M. B., 1984 Chemisorption of Cu(II) and Co(II) on allophane and imogolite Clays & Clay Minerals 32 300–310.CrossRefGoogle Scholar
Davis, J. A. and Leckie, J. O., 1978 Effect of adsorbed complexing ligands on trace metal uptake by hydrous oxides Env. Sci. & Tech. 12 1309–1315.CrossRefGoogle Scholar
Elliot, H. A. and Huang, C. P., 1979 The effect of complex formation on the adsorption characteristics of heavy metals Env. Int. 2 145–155.CrossRefGoogle Scholar
Elliot, H. A. and Huang, C. P., 1980 Adsorption of some copper(II)-amino acid complexes at the solid-solution interface. Effect of ligand and surface hydrophobicity Env. Sci. & Tech. 14 87–93.CrossRefGoogle Scholar
Goodman, B. A., McPhail, D. B. and Powell, H. K. J., 1981 Electron spin resonance study of copper(II)-amino acid complexes: evidence for cis and trans isomers and the structures of copper(II)-histidinate complexes in aqueous solution J. Chem. Soc. Dalton 822–827.CrossRefGoogle Scholar
Martell, A. E. and Smith, R. M., 1977 Critical Stability Constants. Vol. 1. Amino Acids New York Plenum Press.Google Scholar
Martini, G., Bassetti, V. and Ottaviani, M. F., 1980 Mobility and adsorption of copper complexes on aluminas: an ESR study J. Chimie Phys. 77 311–317.CrossRefGoogle Scholar
McBride, M. B., Loneragan, J. F., Robson, A. D. and Graham, R. D., 1981 Forms and distribution of copper in solid and solution phases of soil Copper in Soils and Plants New York Academic Press.Google Scholar
McBride, M. B., 1982 Cu2+-adsorption characteristics of aluminum hydroxide and oxyhydroxides Clays & Clay Minerals 30 21–28.CrossRefGoogle Scholar
McBride, M. B., Fraser, A. R. and McHardy, W. J., 1984 Cu2+ interaction with microcrystalline gibbsite: evidence for oriented chemisorbed copper ions Clays & Clay Minerals 32 12–18.CrossRefGoogle Scholar
Russell, J. D., Parfitt, R. L., Fraser, A. R. and Farmer, V. C., 1974 Surface structures of gibbsite, goethite, and phosphated goethite Nature 248 220–221.CrossRefGoogle Scholar