A vibrational spectroscopic study of the silicate mineral harmotome – (Ba,Na,K)1-2(Si,Al)8O16⋅6H2O – A natural zeolite
| Data(s) |
25/02/2015
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| Resumo |
The mineral harmotome (Ba,Na,K)1-2(Si,Al)8O16⋅6H2O is a crystalline sodium calcium silicate which has the potential to be used in plaster boards and other industrial applications. It is a natural zeolite with catalytic potential. Raman bands at 1020 and 1102 cm−1 are assigned to the SiO stretching vibrations of three dimensional siloxane units. Raman bands at 428, 470 and 491 cm−1 are assigned to OSiO bending modes. The broad Raman bands at around 699, 728, 768 cm−1 are attributed to water librational modes. Intense Raman bands in the 3100 to 3800 cm−1 spectral range are assigned to OH stretching vibrations of water in harmotome. Infrared spectra are in harmony with the Raman spectra. A sharp infrared band at 3731 cm−1 is assigned to the OH stretching vibration of SiOH units. Raman spectroscopy with complimentary infrared spectroscopy enables the characterization of the silicate mineral harmotome. |
| Formato |
application/pdf |
| Identificador | |
| Publicador |
Elsevier BV |
| Relação |
http://eprints.qut.edu.au/76083/4/76083_acceptedVersion.pdf DOI:10.1016/j.saa.2014.07.072 Frost, Ray L., López, Andrés, Wang, Lina, Romano, Antônio Wilson, & Scholz, Ricardo (2015) A vibrational spectroscopic study of the silicate mineral harmotome – (Ba,Na,K)1-2(Si,Al)8O16⋅6H2O – A natural zeolite. Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 137, pp. 70-74. |
| Direitos |
Copyright 2014 Elsevier B.V. NOTICE: this is the author’s version of a work that was accepted for publication in Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, VOL 137, (25 February 2015)DOI: 10.1016/j.saa.2014.07.072 |
| Fonte |
School of Chemistry, Physics & Mechanical Engineering; Science & Engineering Faculty |
| Palavras-Chave | #030606 Structural Chemistry and Spectroscopy #Harmotome #Zeolite #Barium #Silicate #Raman spectroscopy #Infrared spectroscopy |
| Tipo |
Journal Article |
