Siderophore sorption to clays |
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Authors: | Patricia A Maurice Elizabeth A Haack Bhoopesh Mishra |
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Institution: | (1) Department of Civil Engineering and Geological Sciences, University of Notre Dame, Notre Dame, IN 46556, USA;(2) Department of Geosciences, Princeton University, Princeton, NJ 08544, USA |
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Abstract: | Siderophores are low molecular weight organic ligands exuded by some aerobic organisms and plants to acquire Fe under Fe-limited
conditions. The hydroxamate siderophores may sorb to aluminosilicate clays through a variety of mechanisms depending upon
the nature of the clay and of the siderophore along with solution conditions such as pH, ionic strength, and presence of metal
cations. They may also affect metal binding to clays. Here, we review previous studies of siderophore sorption to aluminosilicate
clays; briefly discuss how the techniques of X-ray diffractometry, Fourier-transform infrared spectroscopy, and X-ray absorption
spectroscopy may be applied to such studies; review effects of siderophores on metal sorption to clays; and highlight some
areas for future research. |
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Keywords: | Siderophore Clay Sorption Metals XRD FTIR EXAFS |
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