| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1607395 | Journal of Alloys and Compounds | 2016 | 8 Pages |
Abstract
Indium-doped goethite samples were synthesized by the precipitation method at pH 12 using an organic alkali tetramethylammonium hydroxide (TMAH) and investigated using different instrumental techniques. In3+-for-Fe3+ substitution in the goethite structure was confirmed by the measurement of the unit cell expansion by XRD and the reduction of the hyperfine magnetic field by Mössbauer spectroscopy. Maximum substitution was estimated at about 8Â mol%. Indium substitution in goethite also caused an increase in the size of crystallites and particles, a shift in the position of bands in FT-IR and UV-Vis-NIR spectra and a rise in goethite dehydroxylation temperature (observed by TGA-DTA).
Related Topics
Physical Sciences and Engineering
Materials Science
Metals and Alloys
Authors
Stjepko Krehula, Mira RistiÄ, Shiro Kubuki, Yusuke Iida, Ljerka Kratofil Krehula, Svetozar MusiÄ,