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Ion exchange in birnessite

Al-Attar, L and Dyer, A 2007, 'Ion exchange in birnessite' , Land Contamination & Reclamation, 15 (4) , pp. 427-436.

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    Abstract

    Ion exchange isotherms for the sodium form of birnessite, a layered manganese oxide common in soils, were determined using isotope dilution analysis, by employing 22Na to pre-label the solid. The results were represented by plotting the equivalent ionic fraction of an entering cation in the ion exchanger versus the equivalent ionic fraction of the entering cation remaining in solution. Studying these ion exchange isotherms for sodium-univalent (i.e. NH4-Na, Li-Na, K-Na, and Cs-Na) and sodium-divalent pairs (Mg-Na, Ca-Na, Sr-Na and Ba-Na) on 22Na-birnessite made it possible to obtain a clear picture of the exchangeable sites available in birnessite. The isotherms also gave an estimation of the effect of cations likely to be present in aqueous environments on the uptake of the fission product radioisotopes of caesium and strontium onto soils.

    Item Type: Article
    Themes: Subjects / Themes > Q Science > QD Chemistry
    Subjects outside of the University Themes
    Schools: Colleges and Schools > College of Science & Technology
    Colleges and Schools > College of Science & Technology > School of Computing, Science and Engineering
    Journal or Publication Title: Land Contamination & Reclamation
    Publisher: Epp Publications
    Refereed: Yes
    ISSN: 0967-0513
    Depositing User: Users 29196 not found.
    Date Deposited: 05 Mar 2010 11:51
    Last Modified: 20 Aug 2013 17:04
    URI: http://usir.salford.ac.uk/id/eprint/3159

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