Zeolite A synthesis employing a Brazilian coal ash as the silicon and aluminum source and its applications in adsorption and pigment formulation

Bieseki, Lindiane; Penha, Fábio Garcia; Pergher, Sibele Berenice Castellã

Zeolite A synthesis employing a Brazilian coal ash as the silicon and aluminum source and its applications in adsorption and pigment formulation

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dc.contributor.author	Bieseki, Lindiane
dc.contributor.author	Penha, Fábio Garcia
dc.contributor.author	Pergher, Sibele Berenice Castellã
dc.date.accessioned	2020-07-01T09:21:04Z
dc.date.available	2020-07-01T09:21:04Z
dc.date.issued	2013
dc.description.resumo	Zeolite A was synthesized using the coal ash from Siderópolis/RS - Brazil. The synthesis was based on a standard IZA synthesis using coal ash as the Si and Al source. XRF analysis showed that the coal ash has a Si/Al ratio of 1.52, which is close to the Si/Al ratio required to produce zeolite A (1.0). The synthesized materials were analyzed by XRD, SEM and N2 adsorption. More crystalline materials were obtained during synthesis when an additional treatment was applied at a temperature of 353 K at the dissolution of NaOH step. The product formed after 4 hours was the most crystalline, but even the product formed after 1 hour proved to be better than that formed using the standard 4 hours IZA synthesis. The zeolites synthesized by this method had an adsorption capacity of 120 mg.g–1 for Ca2+, half the capacity of commercial zeolite A (300 mg.g–1). It was not possible to obtain blue or green pigments using the synthesized zeolite A.	pt_BR
dc.identifier.citation	BIESEKI, Lindiane; PENHA, Fábio Garcia; PERGHER, Sibele Berenice Castellã. Zeolite A synthesis employing a brazilian coal ash as the silicon and aluminum source and its applications in adsorption and pigment formulation. Materials Research, [s.l.], v. 16, n. 1, p. 38-43, jan./fev. 2013. Disponível em: https://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392013000100005&lng=en&tlng=en. Acesso em: 19 maio 2020. https://doi.org/10.1590/S1516-14392012005000144.	pt_BR
dc.identifier.doi	10.1590/S1516-14392012005000144
dc.identifier.issn	1516-1439 (print)
dc.identifier.uri	https://repositorio.ufrn.br/jspui/handle/123456789/29394
dc.language	en	pt_BR
dc.publisher	ABM, ABC, ABPol	pt_BR
dc.rights	Attribution-NonCommercial 3.0 Brazil	*
dc.rights	Attribution-NonCommercial 3.0 Brazil	*
dc.rights.uri	http://creativecommons.org/licenses/by-nc/3.0/br/	*
dc.rights.uri	http://creativecommons.org/licenses/by-nc/3.0/br/	*
dc.subject	Zeolite A	pt_BR
dc.subject	Coal ash	pt_BR
dc.subject	Adsorption	pt_BR
dc.subject	Pigment	pt_BR
dc.title	Zeolite A synthesis employing a Brazilian coal ash as the silicon and aluminum source and its applications in adsorption and pigment formulation	pt_BR
dc.type	article	pt_BR