Comparison of Selenate and Sulfate Adsorption on Goethite.
作者： René P.J.J. Rietra , Tjisse Hiemstra , Willem H. van Riemsdijk
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摘要: The adsorption behavior of selenate (SeO4) on goethite has been studied under a wide range conditions. SeO4 compared with the binding SO4. experimental results are interpreted in view very recent spectroscopic work speciation and coordination adsorbed sulfate goethite. suggest that at pH values above 6 outersphere complexes dominant while main lower monodentate innersphere dominant. qualitative from spectroscopy agree well CD-MUSIC modeling large set data. charge distributions obtained for line spectroscopically determined coordinations anions. formation cannot be established macroscopic data without knowledge. However, description including differentiating between both species can done satisfactorily approach.
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