Influence of variables on the synthesis of CoFe2O4 pigment by the complex polymerization method
Autor(a) principal: | |
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Data de Publicação: | 2015 |
Outros Autores: | , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFRN |
Texto Completo: | https://repositorio.ufrn.br/handle/123456789/32022 |
Resumo: | Synthetic inorganic pigments are most widely used in ceramic applications due to their excellent chemical and thermal stability and their lower toxicity to both human and environment as well. In the present work, black ceramic pigment CoFe2O4 has been synthesized by the complex polymerization method (CPM) with good chemical homogeneity. In order to study the influence of variables on the process of obtaining pigment through CPM, 2(5-2) fractional factorial design with resolution III was used. The variables studied in the mathematical modeling were: citric acid/metal concentration, pre-calcination time, calcination temperature, calcination time, and calcination rate. Powder pigments were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), and UV-visible (UV-Vis) spectroscopy. Based on the results, the formation of cobalt ferrite phase (CoFe2O4) with spinel structure was verified. The color of pigments obtained showed dark shades, from black to gray. The model adjusted to the conditions proposed in this study due to the determination coefficient of 99.9% and variance (R 2) showed that all factors are significant at the confidence level of 95% |
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Medeiros, P. N.Gomes, Yara FelicianoDelmonte, Maurício Roberto BomioSantos, I. M. G.Silva, M. R. S.Paskocimas, Carlos AlbertoLi, M. S.Motta, Fabiana Villela da2021-03-29T19:03:23Z2021-03-29T19:03:23Z2015-05-30MEDEIROS, P. N.; GOMES, Y. F.; BOMIO, M. R. D.; SANTOS, I. M. G.; SILVA, M. R. S.; PASKOCIMAS, C. A.; LI, M. S.; MOTTA, F. V.. Influence of variables on the synthesis of CoFe2O4 pigment by the complex polymerization method. Journal of Advanced Ceramics, [S.L.], v. 4, n. 2, p. 135-141, 30 maio 2015. Disponível em: https://link.springer.com/article/10.1007/s40145-015-0145-1. Acesso em: 10 fev. 2021. http://dx.doi.org/10.1007/s40145-015-0145-12226-4108https://repositorio.ufrn.br/handle/123456789/3202210.1007/s40145-015-0145-1SpringerOpenAttribution 3.0 Brazilhttp://creativecommons.org/licenses/by/3.0/br/info:eu-repo/semantics/openAccessPigmentComplex polymerization method (CPM)Fractional factorial designInfluence of variables on the synthesis of CoFe2O4 pigment by the complex polymerization methodinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleSynthetic inorganic pigments are most widely used in ceramic applications due to their excellent chemical and thermal stability and their lower toxicity to both human and environment as well. In the present work, black ceramic pigment CoFe2O4 has been synthesized by the complex polymerization method (CPM) with good chemical homogeneity. In order to study the influence of variables on the process of obtaining pigment through CPM, 2(5-2) fractional factorial design with resolution III was used. The variables studied in the mathematical modeling were: citric acid/metal concentration, pre-calcination time, calcination temperature, calcination time, and calcination rate. Powder pigments were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), and UV-visible (UV-Vis) spectroscopy. Based on the results, the formation of cobalt ferrite phase (CoFe2O4) with spinel structure was verified. The color of pigments obtained showed dark shades, from black to gray. The model adjusted to the conditions proposed in this study due to the determination coefficient of 99.9% and variance (R 2) showed that all factors are significant at the confidence level of 95%engreponame:Repositório Institucional da UFRNinstname:Universidade Federal do Rio Grande do Norte (UFRN)instacron:UFRNORIGINALInfluenceVariablesSynthesis_PASKOCIMAS_2015.pdfInfluenceVariablesSynthesis_PASKOCIMAS_2015.pdfapplication/pdf1342962https://repositorio.ufrn.br/bitstream/123456789/32022/1/InfluenceVariablesSynthesis_PASKOCIMAS_2015.pdf9882e10db6d690fdba763f2ebf2979edMD51CC-LICENSElicense_rdflicense_rdfapplication/rdf+xml; charset=utf-8914https://repositorio.ufrn.br/bitstream/123456789/32022/2/license_rdf4d2950bda3d176f570a9f8b328dfbbefMD52LICENSElicense.txtlicense.txttext/plain; charset=utf-81484https://repositorio.ufrn.br/bitstream/123456789/32022/3/license.txte9597aa2854d128fd968be5edc8a28d9MD53TEXTInfluenceVariablesSynthesis_PASKOCIMAS_2015.pdf.txtInfluenceVariablesSynthesis_PASKOCIMAS_2015.pdf.txtExtracted texttext/plain28267https://repositorio.ufrn.br/bitstream/123456789/32022/4/InfluenceVariablesSynthesis_PASKOCIMAS_2015.pdf.txt4b1ac0be454ca3a0240f59d9bf18baebMD54THUMBNAILInfluenceVariablesSynthesis_PASKOCIMAS_2015.pdf.jpgInfluenceVariablesSynthesis_PASKOCIMAS_2015.pdf.jpgGenerated Thumbnailimage/jpeg1696https://repositorio.ufrn.br/bitstream/123456789/32022/5/InfluenceVariablesSynthesis_PASKOCIMAS_2015.pdf.jpg2d2d57f27192c1db3fddb5a050cffa0cMD55123456789/320222021-10-04 17:11:49.01oai:https://repositorio.ufrn.br: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Repositório de PublicaçõesPUBhttp://repositorio.ufrn.br/oai/opendoar:2021-10-04T20:11:49Repositório Institucional da UFRN - Universidade Federal do Rio Grande do Norte (UFRN)false |
dc.title.pt_BR.fl_str_mv |
Influence of variables on the synthesis of CoFe2O4 pigment by the complex polymerization method |
title |
Influence of variables on the synthesis of CoFe2O4 pigment by the complex polymerization method |
spellingShingle |
Influence of variables on the synthesis of CoFe2O4 pigment by the complex polymerization method Medeiros, P. N. Pigment Complex polymerization method (CPM) Fractional factorial design |
title_short |
Influence of variables on the synthesis of CoFe2O4 pigment by the complex polymerization method |
title_full |
Influence of variables on the synthesis of CoFe2O4 pigment by the complex polymerization method |
title_fullStr |
Influence of variables on the synthesis of CoFe2O4 pigment by the complex polymerization method |
title_full_unstemmed |
Influence of variables on the synthesis of CoFe2O4 pigment by the complex polymerization method |
title_sort |
Influence of variables on the synthesis of CoFe2O4 pigment by the complex polymerization method |
author |
Medeiros, P. N. |
author_facet |
Medeiros, P. N. Gomes, Yara Feliciano Delmonte, Maurício Roberto Bomio Santos, I. M. G. Silva, M. R. S. Paskocimas, Carlos Alberto Li, M. S. Motta, Fabiana Villela da |
author_role |
author |
author2 |
Gomes, Yara Feliciano Delmonte, Maurício Roberto Bomio Santos, I. M. G. Silva, M. R. S. Paskocimas, Carlos Alberto Li, M. S. Motta, Fabiana Villela da |
author2_role |
author author author author author author author |
dc.contributor.author.fl_str_mv |
Medeiros, P. N. Gomes, Yara Feliciano Delmonte, Maurício Roberto Bomio Santos, I. M. G. Silva, M. R. S. Paskocimas, Carlos Alberto Li, M. S. Motta, Fabiana Villela da |
dc.subject.por.fl_str_mv |
Pigment Complex polymerization method (CPM) Fractional factorial design |
topic |
Pigment Complex polymerization method (CPM) Fractional factorial design |
description |
Synthetic inorganic pigments are most widely used in ceramic applications due to their excellent chemical and thermal stability and their lower toxicity to both human and environment as well. In the present work, black ceramic pigment CoFe2O4 has been synthesized by the complex polymerization method (CPM) with good chemical homogeneity. In order to study the influence of variables on the process of obtaining pigment through CPM, 2(5-2) fractional factorial design with resolution III was used. The variables studied in the mathematical modeling were: citric acid/metal concentration, pre-calcination time, calcination temperature, calcination time, and calcination rate. Powder pigments were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), and UV-visible (UV-Vis) spectroscopy. Based on the results, the formation of cobalt ferrite phase (CoFe2O4) with spinel structure was verified. The color of pigments obtained showed dark shades, from black to gray. The model adjusted to the conditions proposed in this study due to the determination coefficient of 99.9% and variance (R 2) showed that all factors are significant at the confidence level of 95% |
publishDate |
2015 |
dc.date.issued.fl_str_mv |
2015-05-30 |
dc.date.accessioned.fl_str_mv |
2021-03-29T19:03:23Z |
dc.date.available.fl_str_mv |
2021-03-29T19:03:23Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.citation.fl_str_mv |
MEDEIROS, P. N.; GOMES, Y. F.; BOMIO, M. R. D.; SANTOS, I. M. G.; SILVA, M. R. S.; PASKOCIMAS, C. A.; LI, M. S.; MOTTA, F. V.. Influence of variables on the synthesis of CoFe2O4 pigment by the complex polymerization method. Journal of Advanced Ceramics, [S.L.], v. 4, n. 2, p. 135-141, 30 maio 2015. Disponível em: https://link.springer.com/article/10.1007/s40145-015-0145-1. Acesso em: 10 fev. 2021. http://dx.doi.org/10.1007/s40145-015-0145-1 |
dc.identifier.uri.fl_str_mv |
https://repositorio.ufrn.br/handle/123456789/32022 |
dc.identifier.issn.none.fl_str_mv |
2226-4108 |
dc.identifier.doi.none.fl_str_mv |
10.1007/s40145-015-0145-1 |
identifier_str_mv |
MEDEIROS, P. N.; GOMES, Y. F.; BOMIO, M. R. D.; SANTOS, I. M. G.; SILVA, M. R. S.; PASKOCIMAS, C. A.; LI, M. S.; MOTTA, F. V.. Influence of variables on the synthesis of CoFe2O4 pigment by the complex polymerization method. Journal of Advanced Ceramics, [S.L.], v. 4, n. 2, p. 135-141, 30 maio 2015. Disponível em: https://link.springer.com/article/10.1007/s40145-015-0145-1. Acesso em: 10 fev. 2021. http://dx.doi.org/10.1007/s40145-015-0145-1 2226-4108 10.1007/s40145-015-0145-1 |
url |
https://repositorio.ufrn.br/handle/123456789/32022 |
dc.language.iso.fl_str_mv |
eng |
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eng |
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Attribution 3.0 Brazil http://creativecommons.org/licenses/by/3.0/br/ info:eu-repo/semantics/openAccess |
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Attribution 3.0 Brazil http://creativecommons.org/licenses/by/3.0/br/ |
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openAccess |
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SpringerOpen |
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SpringerOpen |
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UFRN |
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UFRN |
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