Zeólitas A, Y, Chabazita e seus compósitos magnéticos sintetizados a partir de cinzas volantes

Coal fly ash is found as fine particles with spherical shape as its usual shape. One of its main sources of production is the thermoelectric power plants in which, in a single unit, hundreds or even thousands of tons of this residue are generated daily. Since aluminum (Al2O3) and silicon (SiO2) oxid...

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Detalles Bibliográficos
Autor: Freitas, Armando Diego Lima de
Tipo de recurso: tesis de maestría
Estado:Versión publicada
Fecha de publicación:2019
País:Brasil
Institución:Universidade Federal do Ceará (UFC)
Repositorio:Repositório Institucional da Universidade Federal do Ceará (UFC)
Idioma:portugués
OAI Identifier:oai:repositorio.ufc.br:riufc/50912
Acceso en línea:http://www.repositorio.ufc.br/handle/riufc/50912
Access Level:acceso abierto
Palabra clave:Zeólita Y
Zeólita A
Chabazita
Cinzas volante de carvão
Compósito magnético
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network_acronym_str BR
network_name_str Brasil
repository_id_str
dc.title.pt_BR.fl_str_mv Zeólitas A, Y, Chabazita e seus compósitos magnéticos sintetizados a partir de cinzas volantes
dc.title.en.pt_BR.fl_str_mv Zeolites A, Y, Chabazite and its magnetic composites synthetized from fly ash
title Zeólitas A, Y, Chabazita e seus compósitos magnéticos sintetizados a partir de cinzas volantes
spellingShingle Zeólitas A, Y, Chabazita e seus compósitos magnéticos sintetizados a partir de cinzas volantes
Freitas, Armando Diego Lima de
Zeólita Y
Zeólita A
Chabazita
Cinzas volante de carvão
Compósito magnético
title_short Zeólitas A, Y, Chabazita e seus compósitos magnéticos sintetizados a partir de cinzas volantes
title_full Zeólitas A, Y, Chabazita e seus compósitos magnéticos sintetizados a partir de cinzas volantes
title_fullStr Zeólitas A, Y, Chabazita e seus compósitos magnéticos sintetizados a partir de cinzas volantes
title_full_unstemmed Zeólitas A, Y, Chabazita e seus compósitos magnéticos sintetizados a partir de cinzas volantes
title_sort Zeólitas A, Y, Chabazita e seus compósitos magnéticos sintetizados a partir de cinzas volantes
dc.creator.none.fl_str_mv Freitas, Armando Diego Lima de
author Freitas, Armando Diego Lima de
author_facet Freitas, Armando Diego Lima de
author_role author
dc.contributor.advisor1.fl_str_mv Loiola, Adonay Rodrigues
contributor_str_mv Loiola, Adonay Rodrigues
dc.subject.por.fl_str_mv Zeólita Y
Zeólita A
Chabazita
Cinzas volante de carvão
Compósito magnético
topic Zeólita Y
Zeólita A
Chabazita
Cinzas volante de carvão
Compósito magnético
description Coal fly ash is found as fine particles with spherical shape as its usual shape. One of its main sources of production is the thermoelectric power plants in which, in a single unit, hundreds or even thousands of tons of this residue are generated daily. Since aluminum (Al2O3) and silicon (SiO2) oxides are the major components, these materials are potential alternative raw materials for the synthesis of zeolites, although some technical aspects need to be taken into account. This work aims the synthesis of zeolites from coal fly ash (FA) and magnetic composites generated from the incorporation of magnetic oxides, extracted from the ashes, into the zeolite structures. Thus, a prior physicochemical separation treatment of FA was required in order to remove potentially interfering materials in the synthesis of zeolites. The X-ray diffraction (XRD) analyses confirmed the formation of zeolite phases (ZA, ZY and ZC), as intended, and also confirmed the presence of these zeolite phases in the prepared composites samples. The infrared spectra indicated the presence of the interatomic bonds of the proposed materials, being possible to visualize bands belonging to each synthesized material. In the scanning electron microscopy analyses, the characteristic forms of the zeolites, cubic (ZA), hexagonal (ZC) and octahedral (ZY) were observed, as well as the spherical form of the ashes particles. The zeolites intended in this work were efficiently synthesized and preserved their crystalline properties in their respective composites with magnetic responses, conferring them potential for use in applications such as adsorption in gaseous systems and metal ions in aqueous solutions.
publishDate 2019
dc.date.issued.fl_str_mv 2019
dc.date.accessioned.fl_str_mv 2020-03-26T12:56:37Z
dc.date.available.fl_str_mv 2020-03-26T12:56:37Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/masterThesis
format masterThesis
status_str publishedVersion
dc.identifier.citation.fl_str_mv FREITAS, Armando Diego Lima. Zeólitas A, Y, Chabazita e seus compósitos magnéticos sintetizados a partir de cinzas volantes. 2019. 61 f. Dissertação (Mestrado em Química) - Universidade Federal do Ceará, Fortaleza, 2019.
dc.identifier.uri.fl_str_mv http://www.repositorio.ufc.br/handle/riufc/50912
identifier_str_mv FREITAS, Armando Diego Lima. Zeólitas A, Y, Chabazita e seus compósitos magnéticos sintetizados a partir de cinzas volantes. 2019. 61 f. Dissertação (Mestrado em Química) - Universidade Federal do Ceará, Fortaleza, 2019.
url http://www.repositorio.ufc.br/handle/riufc/50912
dc.language.iso.fl_str_mv por
language por
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.source.none.fl_str_mv reponame:Repositório Institucional da Universidade Federal do Ceará (UFC)
instname:Universidade Federal do Ceará (UFC)
instacron:UFC
instname_str Universidade Federal do Ceará (UFC)
instacron_str UFC
institution UFC
reponame_str Repositório Institucional da Universidade Federal do Ceará (UFC)
collection Repositório Institucional da Universidade Federal do Ceará (UFC)
bitstream.url.fl_str_mv http://repositorio.ufc.br/bitstream/riufc/50912/3/2019_dis_adlfreitas.pdf
http://repositorio.ufc.br/bitstream/riufc/50912/4/license.txt
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repository.name.fl_str_mv Repositório Institucional da Universidade Federal do Ceará (UFC) - Universidade Federal do Ceará (UFC)
repository.mail.fl_str_mv bu@ufc.br || repositorio@ufc.br
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spelling Loiola, Adonay Rodrigues2020-03-26T12:56:37Z2020-03-26T12:56:37Z2019FREITAS, Armando Diego Lima. Zeólitas A, Y, Chabazita e seus compósitos magnéticos sintetizados a partir de cinzas volantes. 2019. 61 f. Dissertação (Mestrado em Química) - Universidade Federal do Ceará, Fortaleza, 2019.http://www.repositorio.ufc.br/handle/riufc/50912Coal fly ash is found as fine particles with spherical shape as its usual shape. One of its main sources of production is the thermoelectric power plants in which, in a single unit, hundreds or even thousands of tons of this residue are generated daily. Since aluminum (Al2O3) and silicon (SiO2) oxides are the major components, these materials are potential alternative raw materials for the synthesis of zeolites, although some technical aspects need to be taken into account. This work aims the synthesis of zeolites from coal fly ash (FA) and magnetic composites generated from the incorporation of magnetic oxides, extracted from the ashes, into the zeolite structures. Thus, a prior physicochemical separation treatment of FA was required in order to remove potentially interfering materials in the synthesis of zeolites. The X-ray diffraction (XRD) analyses confirmed the formation of zeolite phases (ZA, ZY and ZC), as intended, and also confirmed the presence of these zeolite phases in the prepared composites samples. The infrared spectra indicated the presence of the interatomic bonds of the proposed materials, being possible to visualize bands belonging to each synthesized material. In the scanning electron microscopy analyses, the characteristic forms of the zeolites, cubic (ZA), hexagonal (ZC) and octahedral (ZY) were observed, as well as the spherical form of the ashes particles. The zeolites intended in this work were efficiently synthesized and preserved their crystalline properties in their respective composites with magnetic responses, conferring them potential for use in applications such as adsorption in gaseous systems and metal ions in aqueous solutions.CAPESAs cinzas volantes de carvão se apresentam como partículas finas de formato geralmente esférico. Uma das suas principais fontes de produção são as usinas termoelétricas que em média costumam gerar centenas ou até mesmo milhares de toneladas desse resíduo diariamente em suas plantas. Tendo em vista que óxidos de alumínio (Al2O3) e silício (SiO2) figuram como componentes majoritários, esses materiais mostram-se matérias-primas alternativas atraentes para a síntese de zeólitas, embora alguns aspectos técnicos devam ser levados em consideração. Este trabalho tem como objetivo a síntese de zeólitas a partir de cinzas volantes de carvão (FA) e de compósitos magnéticos gerados a partir da incorporação de óxidos magnéticos, extraídos das cinzas, nas estruturas de zeólita. Para tal, fez-se necessário um tratamento de separação físico-químico prévio da FA visando a remoção de materiais potencialmente interferentes na síntese de zeólitas. Por meio da análise de difração de raios-X (DRX), foi confirmada a formação de fases zeolíticas (ZA, ZY e ZC), conforme planejado, bem como confirmada a presença dessas fases zeólitas preservadas nas amostras dos compósitos preparados. Os espectros de infravermelho indicaram a presença das ligações interatômicas dos materiais propostos, sendo possível a visualização de bandas pertencentes a cada material sintetizado. Nas análises de microscopia eletrônica de varredura, observou-se as formas características das zeólitas, cúbica (ZA), hexagonal (ZC) e octaedral (ZY) bem como a forma esférica das cinzas. As zeólitas pretendidas neste trabalho foram eficientemente sintetizadas e mantiveram suas fases cristalinas nos seus respectivos compósitos, com respostas magnéticas, conferindo-as potencial para utilização em aplicações como adsorção em sistemas gasosos e de íons metálicos em soluções aquosas.Zeólita YZeólita AChabazitaCinzas volante de carvãoCompósito magnéticoZeólitas A, Y, Chabazita e seus compósitos magnéticos sintetizados a partir de cinzas volantesZeolites A, Y, Chabazite and its magnetic composites synthetized from fly ashinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisporreponame:Repositório Institucional da Universidade Federal do Ceará (UFC)instname:Universidade Federal do Ceará (UFC)instacron:UFCinfo:eu-repo/semantics/openAccessFreitas, Armando Diego Lima deORIGINAL2019_dis_adlfreitas.pdf2019_dis_adlfreitas.pdfapplication/pdf2267197http://repositorio.ufc.br/bitstream/riufc/50912/3/2019_dis_adlfreitas.pdfd5808e2135f1399e4bc574da873e20b3MD53LICENSElicense.txtlicense.txttext/plain; charset=utf-81748http://repositorio.ufc.br/bitstream/riufc/50912/4/license.txt8a4605be74aa9ea9d79846c1fba20a33MD54riufc/509122020-04-22 09:06:45.297oai:repositorio.ufc.br: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Repositório InstitucionalPUBhttp://www.repositorio.ufc.br/ri-oai/requestbu@ufc.br || repositorio@ufc.bropendoar:2020-04-22T12:06:45Repositório Institucional da Universidade Federal do Ceará (UFC) - Universidade Federal do Ceará (UFC)false
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