EXAFS analysis of arsenite adsorption onto two-line ferrihydrite, hematite, goethite, and lepidocrocite.

@article{OnaNguema2005EXAFSAO,
  title={EXAFS analysis of arsenite adsorption onto two-line ferrihydrite, hematite, goethite, and lepidocrocite.},
  author={Georges Ona-Nguema and Guillaume Morin and Farid Juillot and Georges Calas and Gordon E. Brown},
  journal={Environmental science & technology},
  year={2005},
  volume={39 23},
  pages={9147-55}
}
The modes of As(III) sorption onto two-line ferrihydrite (Fh), hematite (Hm), goethite (Gt), and lepidocrocite (Lp) have been investigated under anoxic condition using X-ray absorption spectroscopy (XAS). X-ray absorption near-edge structure spectroscopy (XANES) indicates that the absence of oxygen minimized As(III) oxidation due to Fenton reactions. Extended X-ray absorption fine structure spectroscopy (EXAFS) indicates thatAs(III)forms similar inner-sphere surface complexes on two-line… CONTINUE READING

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