Compósitos funcionais de polímeros condutores com magnetita: Síntese, caracterização e aplicação
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Tipo de documento: | Tese |
Idioma: | por |
Título da fonte: | Biblioteca Digital de Teses e Dissertações do UNICENTRO |
Texto Completo: | http://tede.unicentro.br:8080/jspui/handle/jspui/1706 |
Resumo: | This study presents the production of composites formed between Polyaniline and Magnetite (Pani-Mag) aiming at an easy, simple and more economical synthetic route, analyzing parameters that satisfactorily contemplate the principles of green chemistry to show how environmentally sustainable and economically interesting this new material can to be. The production of new materials for technological application also needs to be focused on less waste generation and greater sustainability. Thinking about cleaner chemical procedures, with low waste generation, less consumption of raw materials and energy, has represented a critical challenge to the development of technologically sophisticated devices for the development of electrochemical sensors or electronic capacitors. With these assumptions in mind, adaptations were made in the routes described in the literature for the synthesis of materials, producing 3 different composite materials designated as Pani-Mag 01 and Pani-Mag 02. Previous studies and preliminary results selected 2 samples of magnetite to continue the second stage of synthesis, which was the formation of the composite with Pani. For the third material, Pani-Mag 1E, a one-step synthesis was sought by precipitating magnetite directly into the Pani chains. As a result for Pani-Mag 01, in which the synthesis was performed with less vigorous agitation, through a mechanical stirrer built by the doctoral student with alternative materials, formation of material characteristic to the composite in question was observed. This was confirmed by the analysis of FTIR, DRX, MEV spectra. From the results of the analysis of the Pani-Mag 02 composite, the FTIR and DRX spectra confirm that more intense interactions occurred between the polymeric phases and the oxide particles, enhancing applications. Saturation magnetization resulted in a value of 33.5 emu g-1, which is compatible with reference values in the literature for Pani-Mag composites. Electrochemical tests indicate an electrochemically stable material with the potential to be applied as an electrochemical sensor in the determination of ascorbic acid in solution. Regarding the Pani-Mag 01 composite, it showed more satisfactory results. For the analysis of the metric of the green chemistry, both composites presented IPE of 65%, being satisfactory for some pre-established criteria. The Pani-Mag 1E composite showed spectroscopic, structural and morphological characteristics of a characteristic Pani-Fe3O4 composite, well evidenced by X-ray diffractometry and magnetic measurement data. The magnetization value in the non-saturating field B = 20 kOe was 1.57 emu g-1 which is potentially suitable for applications in electrochemical devices, adsorption of contaminants or capacitors. The construction of the metric tables of synthesis, according to the Green Star criteria, to classify all chemical substances, regarding their risks to the environment, human health and physicists, resulted in an IPE star fill index of 60%, which meets safety principles and indicates which aspects are still open to further improve the synthetic route. These composites proved to be promising for several applications such as sensors for molecules of interest, capacitors, among others, being satisfactory for the purposes of this study. |
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Castro, Eryza Guimarães dehttp://lattes.cnpq.br/6638593692685109Marques, Patrícia Teixeirahttps://lattes.cnpq.br/1618673812774317066.156.649-84http://lattes.cnpq.br/5976749550231081Zanotto, Caroline2021-09-14T12:10:02Z2021-07-21Zanotto, Caroline. Compósitos funcionais de polímeros condutores com magnetita: Síntese, caracterização e aplicação. 2021. 82 f. Tese (Programa de Pós-Graduação em Química - Doutorado) - Universidade Estadual do Centro-Oeste, Guarapuava-PR.http://tede.unicentro.br:8080/jspui/handle/jspui/1706This study presents the production of composites formed between Polyaniline and Magnetite (Pani-Mag) aiming at an easy, simple and more economical synthetic route, analyzing parameters that satisfactorily contemplate the principles of green chemistry to show how environmentally sustainable and economically interesting this new material can to be. The production of new materials for technological application also needs to be focused on less waste generation and greater sustainability. Thinking about cleaner chemical procedures, with low waste generation, less consumption of raw materials and energy, has represented a critical challenge to the development of technologically sophisticated devices for the development of electrochemical sensors or electronic capacitors. With these assumptions in mind, adaptations were made in the routes described in the literature for the synthesis of materials, producing 3 different composite materials designated as Pani-Mag 01 and Pani-Mag 02. Previous studies and preliminary results selected 2 samples of magnetite to continue the second stage of synthesis, which was the formation of the composite with Pani. For the third material, Pani-Mag 1E, a one-step synthesis was sought by precipitating magnetite directly into the Pani chains. As a result for Pani-Mag 01, in which the synthesis was performed with less vigorous agitation, through a mechanical stirrer built by the doctoral student with alternative materials, formation of material characteristic to the composite in question was observed. This was confirmed by the analysis of FTIR, DRX, MEV spectra. From the results of the analysis of the Pani-Mag 02 composite, the FTIR and DRX spectra confirm that more intense interactions occurred between the polymeric phases and the oxide particles, enhancing applications. Saturation magnetization resulted in a value of 33.5 emu g-1, which is compatible with reference values in the literature for Pani-Mag composites. Electrochemical tests indicate an electrochemically stable material with the potential to be applied as an electrochemical sensor in the determination of ascorbic acid in solution. Regarding the Pani-Mag 01 composite, it showed more satisfactory results. For the analysis of the metric of the green chemistry, both composites presented IPE of 65%, being satisfactory for some pre-established criteria. The Pani-Mag 1E composite showed spectroscopic, structural and morphological characteristics of a characteristic Pani-Fe3O4 composite, well evidenced by X-ray diffractometry and magnetic measurement data. The magnetization value in the non-saturating field B = 20 kOe was 1.57 emu g-1 which is potentially suitable for applications in electrochemical devices, adsorption of contaminants or capacitors. The construction of the metric tables of synthesis, according to the Green Star criteria, to classify all chemical substances, regarding their risks to the environment, human health and physicists, resulted in an IPE star fill index of 60%, which meets safety principles and indicates which aspects are still open to further improve the synthetic route. These composites proved to be promising for several applications such as sensors for molecules of interest, capacitors, among others, being satisfactory for the purposes of this study.Este estudo apresenta a produção de compósitos formados entre Polianilina e Magnetita (Pani-Mag) visando rota sintética fácil, simples e mais econômica, analisando parâmetros que contemplam satisfatoriamente os princípios da química verde para mostrar o quão ambientalmente sustentável e economicamente interessante esse novo material pode ser. A produção de novos materiais para aplicação tecnológica também precisa ser focada em menor geração de resíduos, e maior sustentabilidade. Pensar em procedimentos químicos mais limpos, com baixa geração de resíduos, menor consumo de matéria-prima e energia, tem representado um desafio crítico ao desenvolvimento de dispositivos tecnologicamente sofisticados para o desenvolvimento de sensores eletroquímicos ou capacitores eletrônicos. Pensando nessas premissas, para a síntese dos materiais foram realizadas adaptações nas rotas descritas pela literatura, produzindo 3 materiais compósitos diferentes designados como Pani-Mag 01 e Pani-Mag 02. Estudos prévios e resultados preliminares selecionaram 2 amostras de magnetita para dar continuidade a segunda etapa da síntese, que foi a formação do compósito com Pani. Para o terceiro material, Pani-Mag 1E, buscou-se uma síntese em uma única etapa precipitando a magnetita diretamente nas cadeias da Pani. Como resultados para Pani-Mag 01, em que se realizou a síntese com agitação menos vigorosa, através de agitador mecânico construído pela doutoranda com materiais alternativos, observou-se formação de material característico ao compósito em questão. Isso foi confirmado pelas análises de espectros de FTIR, DRX, MEV. Pelos resultados das análises do compósito Pani-Mag 02, os espectros de FTIR e DRX confirmam que ocorreu interações mais intensas entre as fases poliméricas e as partículas de óxido potencializando para aplicações. A magnetização por saturação resultou em um valor de 33,5 emu g-1, sendo compatível com valores de referência na literatura para compósitos Pani-Mag. Os testes eletroquímicos indicam um material eletroquimicamente estável com potencial para ser aplicado como sensor eletroquímico na determinação de ácido ascórbico em solução. Pelas análises da métrica da química verde, ambos os compósitos apresentaram IPE de 65%, sendo satisfatório para alguns critérios pré estabelecidos. O compósito Pani-Mag 1E apresentou características espectroscópicas, estruturais e morfológicas de um compósito característico de Pani-Fe3O4, bem evidenciadas por difratometria de raios X e dados de medição magnética. O valor de magnetização no campo não saturante B = 20 kOe foi de 1,57 emu g-1. A análise da síntese sob os princípios da química verde, resultou em um índice de preenchimento de estrela IPE (Índice de Preenchimento de Estrela) de 60%, que atende aos princípios de segurança e indica quais aspectos ainda estão em aberto para melhorar ainda mais a rota sintética. Esses compósitos mostraram-se promissores para aplicações em diversas áreas como sensores para moléculas de interesse, capacitores entre outros, sendo satisfatório para os objetivos desse estudo.Submitted by Fabiano Jucá (fjuca@unicentro.br) on 2021-09-14T12:10:02Z No. of bitstreams: 1 TESE Caroline Zanotto.pdf: 3938177 bytes, checksum: 1aa22d22add4016a08843d535ad78335 (MD5)Made available in DSpace on 2021-09-14T12:10:02Z (GMT). No. of bitstreams: 1 TESE Caroline Zanotto.pdf: 3938177 bytes, checksum: 1aa22d22add4016a08843d535ad78335 (MD5) Previous issue date: 2021-07-21Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPESapplication/pdfhttp://tede.unicentro.br:8080/jspui/retrieve/7226/TESE%20Caroline%20Zanotto.pdf.jpghttp://tede.unicentro.br:8080/jspui/retrieve/7228/TESE%20Caroline%20Zanotto.pdf.jpgporUniversidade Estadual do Centro-OestePrograma de Pós-Graduação em Química (Doutorado)UNICENTROBrasilUnicentro::Departamento de Ciências Exatas e de TecnologiaPolianilinaQuímica verdesensor eletroquímicocaracterizaçõesPolyanilineGreen chemistryelectrochemical sensorcharacterizationsCIENCIAS EXATAS E DA TERRA::QUIMICACompósitos funcionais de polímeros condutores com magnetita: Síntese, caracterização e aplicaçãoinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/doctoralThesis3800526532796635565600600600600-433806549027752903315717003253031171952075167498588264571info:eu-repo/semantics/openAccessreponame:Biblioteca Digital de Teses e Dissertações do UNICENTROinstname:Universidade Estadual do Centro-Oeste (UNICENTRO)instacron:UNICENTROTHUMBNAILTESE Caroline Zanotto.pdf.jpgTESE Caroline Zanotto.pdf.jpgimage/jpeg1943http://localhost:8080/tede/bitstream/jspui/1706/4/TESE+Caroline+Zanotto.pdf.jpgcc73c4c239a4c332d642ba1e7c7a9fb2MD54TEXTTESE Caroline Zanotto.pdf.txtTESE Caroline Zanotto.pdf.txttext/plain133316http://localhost:8080/tede/bitstream/jspui/1706/3/TESE+Caroline+Zanotto.pdf.txt0c6027efb8fc51724dff1d4769e5c1abMD53THUMBNAILTESE Caroline Zanotto.pdf.jpgTESE Caroline Zanotto.pdf.jpgimage/jpeg1943http://localhost:8080/tede/bitstream/jspui/1706/4/TESE+Caroline+Zanotto.pdf.jpgcc73c4c239a4c332d642ba1e7c7a9fb2MD54TEXTTESE Caroline Zanotto.pdf.txtTESE Caroline Zanotto.pdf.txttext/plain133316http://localhost:8080/tede/bitstream/jspui/1706/3/TESE+Caroline+Zanotto.pdf.txt0c6027efb8fc51724dff1d4769e5c1abMD53ORIGINALTESE Caroline Zanotto.pdfTESE Caroline Zanotto.pdfapplication/pdf3938177http://localhost:8080/tede/bitstream/jspui/1706/2/TESE+Caroline+Zanotto.pdf1aa22d22add4016a08843d535ad78335MD52LICENSElicense.txtlicense.txttext/plain; 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dc.title.por.fl_str_mv |
Compósitos funcionais de polímeros condutores com magnetita: Síntese, caracterização e aplicação |
title |
Compósitos funcionais de polímeros condutores com magnetita: Síntese, caracterização e aplicação |
spellingShingle |
Compósitos funcionais de polímeros condutores com magnetita: Síntese, caracterização e aplicação Zanotto, Caroline Polianilina Química verde sensor eletroquímico caracterizações Polyaniline Green chemistry electrochemical sensor characterizations CIENCIAS EXATAS E DA TERRA::QUIMICA |
title_short |
Compósitos funcionais de polímeros condutores com magnetita: Síntese, caracterização e aplicação |
title_full |
Compósitos funcionais de polímeros condutores com magnetita: Síntese, caracterização e aplicação |
title_fullStr |
Compósitos funcionais de polímeros condutores com magnetita: Síntese, caracterização e aplicação |
title_full_unstemmed |
Compósitos funcionais de polímeros condutores com magnetita: Síntese, caracterização e aplicação |
title_sort |
Compósitos funcionais de polímeros condutores com magnetita: Síntese, caracterização e aplicação |
author |
Zanotto, Caroline |
author_facet |
Zanotto, Caroline |
author_role |
author |
dc.contributor.advisor1.fl_str_mv |
Castro, Eryza Guimarães de |
dc.contributor.advisor1Lattes.fl_str_mv |
http://lattes.cnpq.br/6638593692685109 |
dc.contributor.advisor-co1.fl_str_mv |
Marques, Patrícia Teixeira |
dc.contributor.advisor-co1Lattes.fl_str_mv |
https://lattes.cnpq.br/1618673812774317 |
dc.contributor.authorID.fl_str_mv |
066.156.649-84 |
dc.contributor.authorLattes.fl_str_mv |
http://lattes.cnpq.br/5976749550231081 |
dc.contributor.author.fl_str_mv |
Zanotto, Caroline |
contributor_str_mv |
Castro, Eryza Guimarães de Marques, Patrícia Teixeira |
dc.subject.por.fl_str_mv |
Polianilina Química verde sensor eletroquímico caracterizações |
topic |
Polianilina Química verde sensor eletroquímico caracterizações Polyaniline Green chemistry electrochemical sensor characterizations CIENCIAS EXATAS E DA TERRA::QUIMICA |
dc.subject.eng.fl_str_mv |
Polyaniline Green chemistry electrochemical sensor characterizations |
dc.subject.cnpq.fl_str_mv |
CIENCIAS EXATAS E DA TERRA::QUIMICA |
description |
This study presents the production of composites formed between Polyaniline and Magnetite (Pani-Mag) aiming at an easy, simple and more economical synthetic route, analyzing parameters that satisfactorily contemplate the principles of green chemistry to show how environmentally sustainable and economically interesting this new material can to be. The production of new materials for technological application also needs to be focused on less waste generation and greater sustainability. Thinking about cleaner chemical procedures, with low waste generation, less consumption of raw materials and energy, has represented a critical challenge to the development of technologically sophisticated devices for the development of electrochemical sensors or electronic capacitors. With these assumptions in mind, adaptations were made in the routes described in the literature for the synthesis of materials, producing 3 different composite materials designated as Pani-Mag 01 and Pani-Mag 02. Previous studies and preliminary results selected 2 samples of magnetite to continue the second stage of synthesis, which was the formation of the composite with Pani. For the third material, Pani-Mag 1E, a one-step synthesis was sought by precipitating magnetite directly into the Pani chains. As a result for Pani-Mag 01, in which the synthesis was performed with less vigorous agitation, through a mechanical stirrer built by the doctoral student with alternative materials, formation of material characteristic to the composite in question was observed. This was confirmed by the analysis of FTIR, DRX, MEV spectra. From the results of the analysis of the Pani-Mag 02 composite, the FTIR and DRX spectra confirm that more intense interactions occurred between the polymeric phases and the oxide particles, enhancing applications. Saturation magnetization resulted in a value of 33.5 emu g-1, which is compatible with reference values in the literature for Pani-Mag composites. Electrochemical tests indicate an electrochemically stable material with the potential to be applied as an electrochemical sensor in the determination of ascorbic acid in solution. Regarding the Pani-Mag 01 composite, it showed more satisfactory results. For the analysis of the metric of the green chemistry, both composites presented IPE of 65%, being satisfactory for some pre-established criteria. The Pani-Mag 1E composite showed spectroscopic, structural and morphological characteristics of a characteristic Pani-Fe3O4 composite, well evidenced by X-ray diffractometry and magnetic measurement data. The magnetization value in the non-saturating field B = 20 kOe was 1.57 emu g-1 which is potentially suitable for applications in electrochemical devices, adsorption of contaminants or capacitors. The construction of the metric tables of synthesis, according to the Green Star criteria, to classify all chemical substances, regarding their risks to the environment, human health and physicists, resulted in an IPE star fill index of 60%, which meets safety principles and indicates which aspects are still open to further improve the synthetic route. These composites proved to be promising for several applications such as sensors for molecules of interest, capacitors, among others, being satisfactory for the purposes of this study. |
publishDate |
2021 |
dc.date.accessioned.fl_str_mv |
2021-09-14T12:10:02Z |
dc.date.issued.fl_str_mv |
2021-07-21 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/doctoralThesis |
format |
doctoralThesis |
status_str |
publishedVersion |
dc.identifier.citation.fl_str_mv |
Zanotto, Caroline. Compósitos funcionais de polímeros condutores com magnetita: Síntese, caracterização e aplicação. 2021. 82 f. Tese (Programa de Pós-Graduação em Química - Doutorado) - Universidade Estadual do Centro-Oeste, Guarapuava-PR. |
dc.identifier.uri.fl_str_mv |
http://tede.unicentro.br:8080/jspui/handle/jspui/1706 |
identifier_str_mv |
Zanotto, Caroline. Compósitos funcionais de polímeros condutores com magnetita: Síntese, caracterização e aplicação. 2021. 82 f. Tese (Programa de Pós-Graduação em Química - Doutorado) - Universidade Estadual do Centro-Oeste, Guarapuava-PR. |
url |
http://tede.unicentro.br:8080/jspui/handle/jspui/1706 |
dc.language.iso.fl_str_mv |
por |
language |
por |
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3800526532796635565 |
dc.relation.confidence.fl_str_mv |
600 600 600 600 |
dc.relation.department.fl_str_mv |
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dc.relation.cnpq.fl_str_mv |
1571700325303117195 |
dc.relation.sponsorship.fl_str_mv |
2075167498588264571 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Universidade Estadual do Centro-Oeste |
dc.publisher.program.fl_str_mv |
Programa de Pós-Graduação em Química (Doutorado) |
dc.publisher.initials.fl_str_mv |
UNICENTRO |
dc.publisher.country.fl_str_mv |
Brasil |
dc.publisher.department.fl_str_mv |
Unicentro::Departamento de Ciências Exatas e de Tecnologia |
publisher.none.fl_str_mv |
Universidade Estadual do Centro-Oeste |
dc.source.none.fl_str_mv |
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Biblioteca Digital de Teses e Dissertações do UNICENTRO |
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Biblioteca Digital de Teses e Dissertações do UNICENTRO - Universidade Estadual do Centro-Oeste (UNICENTRO) |
repository.mail.fl_str_mv |
repositorio@unicentro.br||fabianoqueiroz@yahoo.com.br |
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1801859386271858688 |