Unconventional silica source employment in zeolite synthesis: Raw powder glass in MFI synthesis case study

Vinaches, Paloma; Rebitski, Ediana Paula; Alves, José Antônio Barros Leal Reis; Melo, Dulce M. A.; Pergher, Sibele Berenice Castellã

Unconventional silica source employment in zeolite synthesis: Raw powder glass in MFI synthesis case study

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dc.contributor.author	Vinaches, Paloma
dc.contributor.author	Rebitski, Ediana Paula
dc.contributor.author	Alves, José Antônio Barros Leal Reis
dc.contributor.author	Melo, Dulce M. A.
dc.contributor.author	Pergher, Sibele Berenice Castellã
dc.date.accessioned	2020-07-15T02:10:15Z
dc.date.available	2020-07-15T02:10:15Z
dc.date.issued	2015-11-15
dc.description.resumo	In this work, the use of raw powder glass as a silica source was studied for silica MFI zeolite synthesis. The zeolite was successfully obtained by employing this silica source treated with a hydrochloric acid solution and as provided. Synthesis was performed using hydrofluoric acid as the mineralizing agent and tetrapropylammonium hydroxide as the organic structure-directing agent. Scanning electron microscopy micrographs revealed elongated crystals of larger size when the raw powder glass employed contained a lower silica percentage. X-ray diffraction patterns of the resulting products indicated that Fe-silicalite-1 was obtained and the Si/Fe ratio was calculated by interpolating the unit cell volume of the obtained zeolites in a linear regression created by employing literature data. The presence of iron was also confirmed by the presence of ν(Si–O–Fe)sym.str in the infrared spectra. Thermogravimetric analyses indicated good stability. This study concluded with a reproducible and optimized method for obtaining this versatile zeolite from raw powder glass with different compositions	pt_BR
dc.identifier.citation	VINACHES, P.; REBITSKI, E. P.; ALVES, J. A. B. L. R.; MELO, D. M. A.; PERGHER, Sibele Berenice Castellã. Unconventional silica source employment in zeolite synthesis: raw powder glass in mfi synthesis case study. Materials Letters, [s.l.], v. 159, p. 233-236, 15 nov. 2015. ISSN 0167-577X. Disponível em: https://www.sciencedirect.com/science/article/abs/pii/S0167577X15301695?via%3Dihub. Acesso em: 14 jul. 2020. https://doi.org/10.1016/j.matlet.2015.06.120.	pt_BR
dc.identifier.doi	10.1016/j.matlet.2015.06.120
dc.identifier.issn	0167-577X
dc.identifier.uri	https://repositorio.ufrn.br/jspui/handle/123456789/29634
dc.language	en	pt_BR
dc.publisher	Elsevier	pt_BR
dc.rights	Attribution 3.0 Brazil	*
dc.rights.uri	http://creativecommons.org/licenses/by/3.0/br/	*
dc.subject	MFI zeolite	pt_BR
dc.subject	Raw powder glass	pt_BR
dc.subject	Hydrofluoric acid	pt_BR
dc.title	Unconventional silica source employment in zeolite synthesis: Raw powder glass in MFI synthesis case study	pt_BR
dc.type	article	pt_BR