Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1696065 | Applied Clay Science | 2010 | 4 Pages |
Abstract
Double hydroxides of Ba(II) and Fe(III) were prepared by the co-precipitation method. Co-precipitation was facilitated by applying highly alkaline, carbonate free NaOH solutions with varying base concentrations (2−20 M). The substances, thus obtained, were characterised by thermal methods, XRD spectra of samples treated at various temperatures, Mössbauer and X-ray absorption spectroscopies. It was found that in extremely concentrated base solutions (≥ 10 M) layered double hydroxides, most probably with intercalated OH− ions, were formed, indeed, while at low base concentration the Fe(III) ions were precipitated as various oxyhydroxides and the Ba(II) ions remained dissolved.
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Authors
Dávid Srankó, Attila Pallagi, Ernő Kuzmann, Sophie E. Canton, Monika Walczak, András Sápi, Ákos Kukovecz, Zoltán Kónya, Pál Sipos, István Pálinkó,