Abstract
SYNTHETIC goethite has been extensively studied as a model adsorbent in the search for a precise description of the chemical reactions involved in phosphate adsorption by soil minerals. Infrared studies1,2 have now firmly established that phosphate on goethite and other iron oxides results in a bridging binuclear complex of the type Fe–O–P–O–Fe. The infrared studies were, however, carried out on dried samples of phosphated goethite. We now report infrared studies on wet goethite films which confirm that the binuclear complex exists in the presence of water.
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References
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PARFITT, R., ATKINSON, R. Phosphate adsorption on goethite (α-FeOOOH). Nature 264, 740–742 (1976). https://doi.org/10.1038/264740a0
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DOI: https://doi.org/10.1038/264740a0
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