A vibrational spectroscopic study of the silicate mineral analcime - Na2(Al4SiO4O12).2H2O - A natural zeolite
Frost, Ray, Lopez Toro, Andres, Theiss, Frederick, Romano, Antonio Wilson, & Scholz, Ricardo (2014) A vibrational spectroscopic study of the silicate mineral analcime - Na2(Al4SiO4O12).2H2O - A natural zeolite. Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 133, pp. 521-525.
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Description
We have studied the mineral analcime using a combination of scanning electron microscopy with energy dispersive spectroscopy and vibrational spectroscopy. The mineral analcime Na2(Al4SiO4O12)·2H2O is a crystalline sodium silicate. Chemical analysis shows the mineral contains a range of elements including Na, Al, Fe2+ and Si. The mineral is characterized by intense Raman bands observed at 1052, 1096 and 1125 cm−1. The infrared bands are broad; nevertheless bands may be resolved at 1006 and 1119 cm−1. These bands are assigned to SiO stretching vibrational modes. Intense Raman band at 484 cm−1 is attributed to OSiO bending modes. Raman bands observed at 2501, 3542, 3558 and 3600 cm−1 are assigned to the stretching vibrations of water. Low intensity infrared bands are noted at 3373, 3529 and 3608 cm−1. The observation of multiple water bands indicate that water is involved in the structure of analcime with differing hydrogen bond strengths. This concept is supported by the number of bands in the water bending region. Vibrational spectroscopy assists with the characterization of the mineral analcime.
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| ID Code: | 73140 |
|---|---|
| Item Type: | Contribution to Journal (Journal Article) |
| Refereed: | Yes |
| Measurements or Duration: | 5 pages |
| Keywords: | Analcime, Infrared spectroscopy, Raman spectroscopy, Sodium silicate, Zeolite |
| DOI: | 10.1016/j.saa.2014.06.034 |
| ISSN: | 1386-1425 |
| Pure ID: | 32697920 |
| Divisions: | Past > QUT Faculties & Divisions > Science & Engineering Faculty |
| Copyright Owner: | Consult author(s) regarding copyright matters |
| Copyright Statement: | This work is covered by copyright. Unless the document is being made available under a Creative Commons Licence, you must assume that re-use is limited to personal use and that permission from the copyright owner must be obtained for all other uses. If the document is available under a Creative Commons License (or other specified license) then refer to the Licence for details of permitted re-use. It is a condition of access that users recognise and abide by the legal requirements associated with these rights. If you believe that this work infringes copyright please provide details by email to qut.copyright@qut.edu.au |
| Deposited On: | 01 Jul 2014 09:52 |
| Last Modified: | 27 Oct 2025 22:59 |
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