Hostname: page-component-586b7cd67f-t7fkt Total loading time: 0 Render date: 2024-11-22T17:21:49.575Z Has data issue: false hasContentIssue false
  • English
  • Français

Comparison of Adsorption of Phosphate, Tartrate, and Oxalate on Hydroxy Aluminum Montmorillonite Complexes

Published online by Cambridge University Press:  28 February 2024

J. Z. He ,
A. De Cristofaro  and
A. Violante
A. De Cristofaro
Affiliation:
Dipartimento di Scienze Chimico-Agrarie, Università di Napoli Federico II, via Università 100, 80055 Portici, Napoli, Italy
A. Violante
Affiliation:
Dipartimento di Scienze Chimico-Agrarie, Università di Napoli Federico II, via Università 100, 80055 Portici, Napoli, Italy
Rights & Permissions [Opens in a new window]

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

Competitive adsorption between phosphate, tartrate and oxalate was studied on two hydroxy aluminum montmorillonite complexes (AlMt1.6 and AlMt6), which were prepared by adding a base to pH 5.5 to samples containing 1.6 and 6.0 mol Al per kg clay. The quantities of phosphate, tartrate and oxalate adsorbed were more closely related to the amount of OH-Al species coatings on the montmorillonite than to the surface area of the complexes. The adsorption capacity of phosphate was much greater than that of tartrate or oxalate for both samples. Adding molar amounts of oxalate and tartrate resulted in an oxalate/tartrate adsorption ratio (Rf) of ∼1. However, in the presence of phosphate, Rf values were <1.0, and the Rf values decreased with increasing amounts of added phosphate, indicating that tartrate competed with phosphate more effectively than oxalate. The presence of tartrate also reduced phosphate adsorption by the complexes. The efficiency of tartrate in reducing phosphate adsorption increased by increasing the initial tartrate/phosphate molar ratio and by adding tartrate 2 h before phosphate addition. Tartrate and oxalate added as a mixture in equimolar quantities were much more effective in inhibiting phosphate sorption than tartrate alone under the same organic ligand concentrations, probably because more sites with high affinity for both the organic ligands were occupied by tartrate and oxalate than by tartrate alone. The efficiency of tartrate alone, or combined with oxalate, in preventing phosphate adsorption was greater for the complex containing a lesser amount of OH-Al species coating the montmorillonite surfaces. This result may be attributable to a greater proportion of sites specific for organic ligands present on AlMt1.6 compared to AlMt6 complex.

Keywords

Competitive AdsorptionHydroxyaluminum-Montmorillonite ComplexesMontmorilloniteOxalatePhosphateTartrate
Type
Research Article
Information
Clays and Clay Minerals , Volume 47 , Issue 2 , April 1999 , pp. 226 - 233
Copyright
Copyright © 1999, The Clay Minerals Society

References

Barnhisel, R.I. Bertsch, P.M., Dixon, J.B. and Weed, S.B., 1989 Chlorites and hydroxy-interlayered vermiculite and smectite Minerals in Soil Environments 729–788.CrossRefGoogle Scholar
Deb, D.L. and Datta, N.P., 1967 Effect of associating anions on phosphorus retention in soils: I. Under variable phosphorus concentration Plant Soil 26 303–316 10.1007/BF01880180.CrossRefGoogle Scholar
Earl, K.D. Syers, J.K. and McLauglin, J.R., 1979 Origin of the effect of citrate, tartrate, and acetate on phosphate sorption by soils and synthetic gels Soil Science Society of America Journal 43 674–678 10.2136/sssaj1979.03615995004300040009x.CrossRefGoogle Scholar
Eltantawy, I.M. and Arnold, P.W., 1973 Reappraisal of ethylene glycol monoethyl ether method for surface area estimation of clays Journal of Soil Science 24 232–238 10.1111/j.1365-2389.1973.tb00759.x.CrossRefGoogle Scholar
Giles, C.H. Smith, D. and Huitson, A., 1974 A general treatment and classification of the solute adsorption isotherm. I. Theoretical Journal of Colloid Interface Science 47 755–765 10.1016/0021-9797(74)90252-5.CrossRefGoogle Scholar
Hingston, F.J. Posner, A.M. and Quirk, J.R., 1971 Competitive adsorption of negatively charged ligands on oxide surface Discussions of the Faraday Society 52 334–342 10.1039/df9715200334.CrossRefGoogle Scholar
Hsu, P.H., Dixon, J.B. and Weed, S.B., 1989 Aluminum hydroxides and oxyhydroxides Minerals in Soil Environments (2nd edition) 331–378.CrossRefGoogle Scholar
Huang, P.M. Violante, A., Huang, P.M. and Schnitzer, M., 1986 Influence of organic acids on crystallization and surface properties of precipitation products of aluminum Interactions of Soil Minerals with Natural Organics and Microbes 159–221.CrossRefGoogle Scholar
Marschner, H., 1995 Mineral Nutrition of Higher Plants (2nd edition) London Academic Press Limited.Google Scholar
Martell, A.E. and Smith, R.M., 1977 Critical Stability Constants: Other Organic Ligands, Volume 3 New York Plenum Press.Google Scholar
Nagarajah, S. Posner, A.M. and Quirk, J.P., 1970 Competitive adsorption of phosphate with polygalacturonate and other organic anions on kaolinite and oxide surfaces Nature (London) 228 83–84 10.1038/228083a0.CrossRefGoogle ScholarPubMed
Parfitt, R.L., 1978 Anion adsorption by soils and soil materials Advances in Agron 30 1–50.Google Scholar
Rovira, A.D., 1969 Plant root exudates Botanical Review 35 35–57 10.1007/BF02859887.CrossRefGoogle Scholar
Sibanda, H.M. and Young, S.D., 1986 Competitive adsorption of humus acids and phosphate on goethite, gibbsite, and two tropical soils Journal of Soil Science 37 197–204 10.1111/j.1365-2389.1986.tb00020.x.CrossRefGoogle Scholar
Stumm, W. Furrer, G. Wieland, E. Zinder, B. and Drever, J.E., 1985 The effect of complex-forming ligands on the dissolution of oxides and aluminosilicates The Chemistry of Weathering Massachusetts D. Reidel Publisher, Hingham 55–74 10.1007/978-94-009-5333-8_4.CrossRefGoogle Scholar
Swenson, R.M. Cove, C.V. and Sieling, D.H., 1949 Fixation of phosphate by iron and aluminum and replacement by organic and inorganic ions Soil Science 67 3–22 10.1097/00010694-194901000-00002.CrossRefGoogle Scholar
Vance, G.F. Stevenson, F.J. Sikora, F.J. and Sposito, G., 1996 Environmental chemistry of aluminum-organic complexes The Environmental Chemistry of Aluminum Boca Raton, Florida CRC Press, Lewis Publisher 169–220.Google Scholar
Violante, A. and Gianfreda, L., 1993 Competition in adsorption between phosphate and oxalate on an aluminum hydroxide montmorillonite complex Soil Science Society of America Journal 57 1235–1241 10.2136/sssaj1993.03615995005700050013x.CrossRefGoogle Scholar
Violante, A. Gianfreda, L., Huang, P.M. Berfhelin, J. Bolag, J.M. McGill, W.B. and Page, A.L., 1995 Adsorption of phosphate on variable charge minerals: Competitive effects of organic ligands Environmental Impacts of Soil Component Interactions. Volume II. Metals, Other Inorganics, and Microbial Activities Boca Raton, Florida CRC Press, Lewis Publishers 29–37.Google Scholar
Violante, A. Colombo, C. and Buondonno, A., 1991 Competitive adsorption of phosphate and oxalate by aluminum oxides Soil Science Society of America Journal 55 65–70 10.2136/sssaj1991.03615995005500010011x.CrossRefGoogle Scholar
Violante, A. Rao, M.A. De Chiara, A. and Gianfreda, L., 1996 Sorption of phosphate and oxalate by a synthetic aluminum hydroxysulphate complex European Journal of Soil Science 47 241–247 10.1111/j.1365-2389.1996.tb01395.x.CrossRefGoogle Scholar
Yuan, T.L., 1980 Adsorption of phosphate and water-extract-able soil organic material by synthetic aluminum silicates and acid soils Soil Science Society of America Journal 44 951–955 10.2136/sssaj1980.03615995004400050015x.CrossRefGoogle Scholar