Synthesis and properties of novel Ba(II)Fe(III) layered double hydroxides
Author
Summary, in English
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, Mossbauer 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. (C) 2009 Elsevier B.V. All rights reserved.
Department/s
Publishing year
2010
Language
English
Pages
214-217
Publication/Series
Applied Clay Science
Volume
48
Issue
1-2
Document type
Journal article
Publisher
Elsevier
Topic
- Atom and Molecular Physics and Optics
Keywords
- XRD
- TG and DTG
- BaFe LDHs
- NaOH solutions with extreme base concentrations
- Mossbauer spectroscopy
- XAS
Status
Published
ISBN/ISSN/Other
- ISSN: 1872-9053