pH effect on the synthesis of magnetite nanoparticles by the chemical reduction-precipitation method

Detalhes bibliográficos
Autor(a) principal: Andrade,Ângela L.
Data de Publicação: 2010
Outros Autores: Souza,Diana M., Pereira,Márcio C., Fabris,José D., Domingues,Rosana Z.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Química Nova (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422010000300006
Resumo: This work aimed at putting in evidence the influence of the pH on the chemical nature and properties of the synthesized magnetic nanocomposites. Saturation magnetization measurements evidenced a marked difference of the magnetic behavior of samples, depending on the final pH of the solution after reaction. Magnetite and maghemite in different proportions were the main magnetic iron oxides actually identified. Synthesis with final pH between 9.7-10.6 produced nearly pure magnetite with little or no other associated iron oxide. Under other synthetic conditions, goethite also appears in proportions that depended upon the pH of the synthesis medium.
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spelling pH effect on the synthesis of magnetite nanoparticles by the chemical reduction-precipitation methodmagnetic nano-compositesmagnetiteMössbauer spectroscopyThis work aimed at putting in evidence the influence of the pH on the chemical nature and properties of the synthesized magnetic nanocomposites. Saturation magnetization measurements evidenced a marked difference of the magnetic behavior of samples, depending on the final pH of the solution after reaction. Magnetite and maghemite in different proportions were the main magnetic iron oxides actually identified. Synthesis with final pH between 9.7-10.6 produced nearly pure magnetite with little or no other associated iron oxide. Under other synthetic conditions, goethite also appears in proportions that depended upon the pH of the synthesis medium.Sociedade Brasileira de Química2010-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422010000300006Química Nova v.33 n.3 2010reponame:Química Nova (Online)instname:Sociedade Brasileira de Química (SBQ)instacron:SBQ10.1590/S0100-40422010000300006info:eu-repo/semantics/openAccessAndrade,Ângela L.Souza,Diana M.Pereira,Márcio C.Fabris,José D.Domingues,Rosana Z.eng2010-04-19T00:00:00Zoai:scielo:S0100-40422010000300006Revistahttps://www.scielo.br/j/qn/ONGhttps://old.scielo.br/oai/scielo-oai.phpquimicanova@sbq.org.br1678-70640100-4042opendoar:2010-04-19T00:00Química Nova (Online) - Sociedade Brasileira de Química (SBQ)false
dc.title.none.fl_str_mv pH effect on the synthesis of magnetite nanoparticles by the chemical reduction-precipitation method
title pH effect on the synthesis of magnetite nanoparticles by the chemical reduction-precipitation method
spellingShingle pH effect on the synthesis of magnetite nanoparticles by the chemical reduction-precipitation method
Andrade,Ângela L.
magnetic nano-composites
magnetite
Mössbauer spectroscopy
title_short pH effect on the synthesis of magnetite nanoparticles by the chemical reduction-precipitation method
title_full pH effect on the synthesis of magnetite nanoparticles by the chemical reduction-precipitation method
title_fullStr pH effect on the synthesis of magnetite nanoparticles by the chemical reduction-precipitation method
title_full_unstemmed pH effect on the synthesis of magnetite nanoparticles by the chemical reduction-precipitation method
title_sort pH effect on the synthesis of magnetite nanoparticles by the chemical reduction-precipitation method
author Andrade,Ângela L.
author_facet Andrade,Ângela L.
Souza,Diana M.
Pereira,Márcio C.
Fabris,José D.
Domingues,Rosana Z.
author_role author
author2 Souza,Diana M.
Pereira,Márcio C.
Fabris,José D.
Domingues,Rosana Z.
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Andrade,Ângela L.
Souza,Diana M.
Pereira,Márcio C.
Fabris,José D.
Domingues,Rosana Z.
dc.subject.por.fl_str_mv magnetic nano-composites
magnetite
Mössbauer spectroscopy
topic magnetic nano-composites
magnetite
Mössbauer spectroscopy
description This work aimed at putting in evidence the influence of the pH on the chemical nature and properties of the synthesized magnetic nanocomposites. Saturation magnetization measurements evidenced a marked difference of the magnetic behavior of samples, depending on the final pH of the solution after reaction. Magnetite and maghemite in different proportions were the main magnetic iron oxides actually identified. Synthesis with final pH between 9.7-10.6 produced nearly pure magnetite with little or no other associated iron oxide. Under other synthetic conditions, goethite also appears in proportions that depended upon the pH of the synthesis medium.
publishDate 2010
dc.date.none.fl_str_mv 2010-01-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422010000300006
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422010000300006
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S0100-40422010000300006
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Sociedade Brasileira de Química
publisher.none.fl_str_mv Sociedade Brasileira de Química
dc.source.none.fl_str_mv Química Nova v.33 n.3 2010
reponame:Química Nova (Online)
instname:Sociedade Brasileira de Química (SBQ)
instacron:SBQ
instname_str Sociedade Brasileira de Química (SBQ)
instacron_str SBQ
institution SBQ
reponame_str Química Nova (Online)
collection Química Nova (Online)
repository.name.fl_str_mv Química Nova (Online) - Sociedade Brasileira de Química (SBQ)
repository.mail.fl_str_mv quimicanova@sbq.org.br
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