Please use this identifier to cite or link to this item: http://www.repositorio.ufop.br/handle/123456789/6271
Title: A vibrational spectroscopic study of the silicate mineral harmotome – (Ba,Na,K)1-2(Si,Al)8O16 6H2O – a natural zeolite.
Authors: Frost, Ray Leslie
López, Andrés
Wang, Lina
Romano, Antônio Wilson
Cipriano, Ricardo Augusto Scholz
Keywords: Harmotome
Zeolite
Barium
Silicate
Issue Date: 2015
Citation: FROST, R. L. et al. 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, v. 137, p. 70-74, 2015. Disponível em: <http://www.sciencedirect.com/science/article/pii/S1386142514011536>. Acesso em: 08 set. 2015.
Abstract: 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.
URI: http://www.repositorio.ufop.br/handle/123456789/6271
metadata.dc.identifier.doi: https://doi.org/10.1016/j.saa.2014.07.072
ISSN: 1386-1425
metadata.dc.rights.license: O periódico Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy concede permissão para depósito deste artigo no Repositório Institucional da UFOP. Número da licença: 3727590433585.
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