Structure and composition of natural ferrihydrite nano-colloids in anoxic groundwater

•Fe-colloids are Si-coated ferrihydrite nanoparticles embedded in organic matter.•Colloid stability is attributed to the passivation by the si and organic matter.•Fe-colloids persist under diverse redox conditions.•Colloid persistence and mobility will facilitate element transport and cycling. Fe-ri...

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Veröffentlicht in:	Water research (Oxford) 2023-06, Vol.238, p.119990-119990, Article 119990
Hauptverfasser:	Engel, Maya, Noël, Vincent, Pierce, Samuel, Kovarik, Libor, Kukkadapu, Ravi K., Pacheco, Juan S. Lezama, Qafoku, Odeta, Runyon, J. Ray, Chorover, Jon, Zhou, Weijiang, Cliff, John, Boye, Kristin, Bargar, John R.
Format:	Artikel
Sprache:	eng
Schlagworte:	biogeochemistry Colloids - chemistry Electron microscopy ENVIRONMENTAL SCIENCES EXAFS Fe mineral Ferric Compounds ferrihydrite floodplains GEOSCIENCES groundwater Groundwater - chemistry Iron - chemistry Minerals - chemistry Mössbauer spectroscopy nanoparticles natural colloids organic matter Oxidation-Reduction redox Soil
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