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• W2994889090 abstract "Uranium is a risk-driving radionuclide in both radioactive waste disposal and contaminated land scenarios. In these environments, a range of biogeochemical processes can occur, including sulfate reduction, which can induce sulfidation of iron (oxyhydr)oxide mineral phases. During sulfidation, labile U(VI) is known to reduce to relatively immobile U(IV); however, the detailed mechanisms of the changes in U speciation during these biogeochemical reactions are poorly constrained. Here, we performed highly controlled sulfidation experiments at pH 7 and pH 9.5 on U(VI) adsorbed to ferrihydrite and investigated the system using geochemical analyses, X-ray absorption spectroscopy (XAS), and computational modeling. Analysis of the XAS data indicated the formation of a novel, transient U(VI)-persulfide complex as an intermediate species during the sulfidation reaction, concomitant with the transient release of uranium to the solution. Extended X-ray absorption fine structure (EXAFS) modeling showed that a persulfide ligand was coordinated in the equatorial plane of the uranyl moiety, and formation of this species was supported by computational modeling. The final speciation of U was nanoparticulate U(IV) uraninite, and this phase was evident at 2 days at pH 7 and 1 year at pH 9.5. Our identification of a new, labile U(VI)-persulfide species under environmentally relevant conditions may have implications for U mobility in sulfidic environments pertinent to radioactive waste disposal and contaminated land scenarios." @default.
• W2994889090 created "2019-12-26" @default.
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• W2994889090 date "2019-12-16" @default.
• W2994889090 modified "2023-10-16" @default.
• W2994889090 title "Formation of a U(VI)–Persulfide Complex during Environmentally Relevant Sulfidation of Iron (Oxyhydr)oxides" @default.
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• W2994889090 cites W1978607238 @default.
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• W2994889090 cites W1991702363 @default.
• W2994889090 cites W1993041117 @default.
• W2994889090 cites W2001537266 @default.
• W2994889090 cites W2007395042 @default.
• W2994889090 cites W2008805335 @default.
• W2994889090 cites W2008851637 @default.
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• W2994889090 cites W2016998298 @default.
• W2994889090 cites W2017840824 @default.
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• W2994889090 cites W2027377304 @default.
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• W2994889090 cites W2034899185 @default.
• W2994889090 cites W2036100486 @default.
• W2994889090 cites W2041005800 @default.
• W2994889090 cites W2047025092 @default.
• W2994889090 cites W2050544236 @default.
• W2994889090 cites W2058317629 @default.
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• W2994889090 cites W2072172339 @default.
• W2994889090 cites W2079105963 @default.
• W2994889090 cites W2079201296 @default.
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• W2994889090 cites W2082719189 @default.
• W2994889090 cites W2083222334 @default.
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• W2994889090 cites W2087698390 @default.
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• W2994889090 cites W2098691329 @default.
• W2994889090 cites W2103736180 @default.
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• W2994889090 cites W2159190527 @default.
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• W2994889090 doi "https://doi.org/10.1021/acs.est.9b03180" @default.
• W2994889090 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/31838844" @default.
• W2994889090 hasPublicationYear "2019" @default.
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