Influence of tungstate ions on transformation of green rust to ferric oxyhydroxide via aqueous solution investigated by in situ X-ray absorption spectroscopy
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Abstract
Abstract Influence of tungstate ions on the transformation of chloride-containing green rust (GR(Cl − )) to fine goethite (α-FeOOH) particles due to the oxidation reaction via aqueous solution at about 300 K was investigated by in situ measurements of X-ray absorption spectra. Results showed that the transformation rate of GR(Cl − ) in the suspension containing 5 mol% W was lower than that in the suspension without tungstate ions. Almost all tungstate ions in the suspension were adsorbed on GR(Cl − ) and α-FeOOH. It is probable that the adsorption of tungstate ions reduces the transformation rate of GR(Cl − ) and also leads to the precipitation of fine particles.
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Research context
OpenAlex topics: Iron oxide chemistry and applications · Radioactive element chemistry and processing · Layered Double Hydroxides Synthesis and Applications
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