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Competitive adsorption of negatively charged ligands on oxide surfaces
Abstract
The competitive adsorption of phosphate + arsenate and phosphate + selenite on goethite and gibbsite has been measured. The oxide surface contains sites common to both anions on which competitive adsorption takes place and sites on which only one or the other anion is able to adsorb. The maximum amount of anions adsorbed from a mixture is approximately equal to the sum of the maximum adsorption for each anion in the absence of competition. The number of sites at which competition takes place is almost equal to the number of sites available to the anion with the lower adsorption in the absence of a competitor. Competition is described by a Langmuir-type exchange equation.
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Cited by
A review of the source, behaviour and distribution of arsenic in natural waters
Smedley, P. L., & Kinniburgh, D. G. (2002) · Applied Geochemistry · doi:10.1016/s0883-2927(02)00018-5 · Cited by 7,691
Arsenic in the Soil Environment: A Review
Smith, E., Naidu, R., & Alston, A. M. (1998) · Advances in Agronomy · doi:10.1016/s0065-2113(08)60504-0 · Cited by 649
Arsenic chemistry in soils: An overview of thermodynamic predictions and field observations
Sadiq, M. (1997) · Water, Air, & Soil Pollution · doi:10.1007/bf02404751 · Cited by 494
Arsenic in Ground Water of the Western United States
Welch, A. H., Lico, M. S., & Hughes, J. L. (1988) · Groundwater · doi:10.1111/j.1745-6584.1988.tb00397.x · Cited by 479
Competitive Sorption of Arsenate and Phosphate on Different Clay Minerals and Soils
Violante, A., & Pigna, M. (2002) · Soil Science Society of America Journal · doi:10.2136/sssaj2002.1788 · Cited by 425
Metadata
- Authors
- Hingston, F. J., Posner, A. M., & Quirk, J. P.
- Venue
- Discussions of the Faraday Society
- Publisher
- Royal Society of Chemistry (RSC)
- Published
- 1971
- Volume
- 52
- Pages
- 334
- ISSN
- 0366-9033 (ISSN-L)
- OpenAlex
- W2070591653
- Cited by
- 262
- References
- 0
- FWCI
- 0.00
- Type
- journal article
- Language
- en
- Open access
- closed
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- CoChat. (2026). Citation check: Competitive adsorption of negatively charged ligands on oxide surfaces. https://app.cochat.ai/papers/10.1039/df9715200334
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- Hingston, F. J., Posner, A. M., & Quirk, J. P. (1971). Competitive adsorption of negatively charged ligands on oxide surfaces. Discussions of the Faraday Society. https://doi.org/10.1039/df9715200334
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