Ion exchange of synthetic zeolite A with Cr(III) ions
Апстракт
A series of chromium-exchanged zeolite A was prepared by ion-exchange using very dilute solution of a chromium(III) salt. The chromium(III) ions can replace up to 40% sodium cations. A significant lattice decomposition was found at higher chromium exchange levels. Chemical, X-ray diffraction, and thermal analyses were made and data on the composition and the unit cell dimensions are reported. The diffuse reflectance spectra of the as-made and the dehydrated chromium-exchanged zeolite A were investigated. In the as-made product chromium(III) is octahedrally coordinated whereas after dehydration its coordination number decreases.
Кључне речи:
Chromium(III) coordination / Chromium-exchanged zeolite A / Diffuse reflectance spectroscopy / DSC analysis / Ion-exchange / X-ray diffractionИзвор:
Journal of the Serbian Chemical Society, 1997, 62, 7, 591-598Издавач:
- Serbian Chemical Society, Belgrade
Институција/група
Tehnološko-metalurški fakultetTY - JOUR AU - Rajić, Nevenka AU - Novaković, Jelica PY - 1997 UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/109 AB - A series of chromium-exchanged zeolite A was prepared by ion-exchange using very dilute solution of a chromium(III) salt. The chromium(III) ions can replace up to 40% sodium cations. A significant lattice decomposition was found at higher chromium exchange levels. Chemical, X-ray diffraction, and thermal analyses were made and data on the composition and the unit cell dimensions are reported. The diffuse reflectance spectra of the as-made and the dehydrated chromium-exchanged zeolite A were investigated. In the as-made product chromium(III) is octahedrally coordinated whereas after dehydration its coordination number decreases. PB - Serbian Chemical Society, Belgrade T2 - Journal of the Serbian Chemical Society T1 - Ion exchange of synthetic zeolite A with Cr(III) ions EP - 598 IS - 7 SP - 591 VL - 62 UR - https://hdl.handle.net/21.15107/rcub_technorep_109 ER -
@article{ author = "Rajić, Nevenka and Novaković, Jelica", year = "1997", abstract = "A series of chromium-exchanged zeolite A was prepared by ion-exchange using very dilute solution of a chromium(III) salt. The chromium(III) ions can replace up to 40% sodium cations. A significant lattice decomposition was found at higher chromium exchange levels. Chemical, X-ray diffraction, and thermal analyses were made and data on the composition and the unit cell dimensions are reported. The diffuse reflectance spectra of the as-made and the dehydrated chromium-exchanged zeolite A were investigated. In the as-made product chromium(III) is octahedrally coordinated whereas after dehydration its coordination number decreases.", publisher = "Serbian Chemical Society, Belgrade", journal = "Journal of the Serbian Chemical Society", title = "Ion exchange of synthetic zeolite A with Cr(III) ions", pages = "598-591", number = "7", volume = "62", url = "https://hdl.handle.net/21.15107/rcub_technorep_109" }
Rajić, N.,& Novaković, J.. (1997). Ion exchange of synthetic zeolite A with Cr(III) ions. in Journal of the Serbian Chemical Society Serbian Chemical Society, Belgrade., 62(7), 591-598. https://hdl.handle.net/21.15107/rcub_technorep_109
Rajić N, Novaković J. Ion exchange of synthetic zeolite A with Cr(III) ions. in Journal of the Serbian Chemical Society. 1997;62(7):591-598. https://hdl.handle.net/21.15107/rcub_technorep_109 .
Rajić, Nevenka, Novaković, Jelica, "Ion exchange of synthetic zeolite A with Cr(III) ions" in Journal of the Serbian Chemical Society, 62, no. 7 (1997):591-598, https://hdl.handle.net/21.15107/rcub_technorep_109 .