Synthesis and characterization of Fe3O4-NH2 and Fe3O4-NH2-chitosan nanoparticles

Detalhes bibliográficos
Autor(a) principal: Silveira,M. L. D. C.
Data de Publicação: 2021
Outros Autores: Silva,I. M. B., Magdalena,A. G.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Cerâmica (São Paulo. Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0366-69132021000300295
Resumo: Abstract Fe3O4 nanoparticles were synthesized and functionalized with (3-aminopropyl) trimethoxysilane (APTMS) and chitosan, forming Fe3O4-NH2 and Fe3O4-NH2-chitosan nanoparticles. The Fe3O4 nanoparticles were synthesized by a co-precipitation method and functionalization was performed in further stages. The nanoparticles were characterized by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), zeta potential, and transmission electron microscopy (TEM). The results of XRD showed that magnetite did not experience an oxidation reaction. The functionalization of the surface of Fe3O4 nanoparticles was confirmed by FTIR and zeta potential measurements. The TEM results showed a thin layer around Fe3O4 nanoparticles due to the functionalization with the APTMS. The later functionalization by chitosan contributed to the agglomeration of nanoparticles. Functionalization provided the nanoparticles better colloidal stability mainly for a pH below 7 and this improvement was related to the protection and new functional groups from the APTMS and chitosan.
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network_name_str Cerâmica (São Paulo. Online)
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spelling Synthesis and characterization of Fe3O4-NH2 and Fe3O4-NH2-chitosan nanoparticlesnanoparticlesfunctionalizationsurface modificationAbstract Fe3O4 nanoparticles were synthesized and functionalized with (3-aminopropyl) trimethoxysilane (APTMS) and chitosan, forming Fe3O4-NH2 and Fe3O4-NH2-chitosan nanoparticles. The Fe3O4 nanoparticles were synthesized by a co-precipitation method and functionalization was performed in further stages. The nanoparticles were characterized by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), zeta potential, and transmission electron microscopy (TEM). The results of XRD showed that magnetite did not experience an oxidation reaction. The functionalization of the surface of Fe3O4 nanoparticles was confirmed by FTIR and zeta potential measurements. The TEM results showed a thin layer around Fe3O4 nanoparticles due to the functionalization with the APTMS. The later functionalization by chitosan contributed to the agglomeration of nanoparticles. Functionalization provided the nanoparticles better colloidal stability mainly for a pH below 7 and this improvement was related to the protection and new functional groups from the APTMS and chitosan.Associação Brasileira de Cerâmica2021-09-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0366-69132021000300295Cerâmica v.67 n.383 2021reponame:Cerâmica (São Paulo. Online)instname:Universidade de São Paulo (USP)instacron:USP10.1590/0366-69132021673833101info:eu-repo/semantics/openAccessSilveira,M. L. D. C.Silva,I. M. B.Magdalena,A. G.eng2021-09-24T00:00:00Zoai:scielo:S0366-69132021000300295Revistahttps://www.scielo.br/j/ce/PUBhttps://old.scielo.br/oai/scielo-oai.phpceram.abc@gmail.com||ceram.abc@gmail.com1678-45530366-6913opendoar:2021-09-24T00:00Cerâmica (São Paulo. Online) - Universidade de São Paulo (USP)false
dc.title.none.fl_str_mv Synthesis and characterization of Fe3O4-NH2 and Fe3O4-NH2-chitosan nanoparticles
title Synthesis and characterization of Fe3O4-NH2 and Fe3O4-NH2-chitosan nanoparticles
spellingShingle Synthesis and characterization of Fe3O4-NH2 and Fe3O4-NH2-chitosan nanoparticles
Silveira,M. L. D. C.
nanoparticles
functionalization
surface modification
title_short Synthesis and characterization of Fe3O4-NH2 and Fe3O4-NH2-chitosan nanoparticles
title_full Synthesis and characterization of Fe3O4-NH2 and Fe3O4-NH2-chitosan nanoparticles
title_fullStr Synthesis and characterization of Fe3O4-NH2 and Fe3O4-NH2-chitosan nanoparticles
title_full_unstemmed Synthesis and characterization of Fe3O4-NH2 and Fe3O4-NH2-chitosan nanoparticles
title_sort Synthesis and characterization of Fe3O4-NH2 and Fe3O4-NH2-chitosan nanoparticles
author Silveira,M. L. D. C.
author_facet Silveira,M. L. D. C.
Silva,I. M. B.
Magdalena,A. G.
author_role author
author2 Silva,I. M. B.
Magdalena,A. G.
author2_role author
author
dc.contributor.author.fl_str_mv Silveira,M. L. D. C.
Silva,I. M. B.
Magdalena,A. G.
dc.subject.por.fl_str_mv nanoparticles
functionalization
surface modification
topic nanoparticles
functionalization
surface modification
description Abstract Fe3O4 nanoparticles were synthesized and functionalized with (3-aminopropyl) trimethoxysilane (APTMS) and chitosan, forming Fe3O4-NH2 and Fe3O4-NH2-chitosan nanoparticles. The Fe3O4 nanoparticles were synthesized by a co-precipitation method and functionalization was performed in further stages. The nanoparticles were characterized by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), zeta potential, and transmission electron microscopy (TEM). The results of XRD showed that magnetite did not experience an oxidation reaction. The functionalization of the surface of Fe3O4 nanoparticles was confirmed by FTIR and zeta potential measurements. The TEM results showed a thin layer around Fe3O4 nanoparticles due to the functionalization with the APTMS. The later functionalization by chitosan contributed to the agglomeration of nanoparticles. Functionalization provided the nanoparticles better colloidal stability mainly for a pH below 7 and this improvement was related to the protection and new functional groups from the APTMS and chitosan.
publishDate 2021
dc.date.none.fl_str_mv 2021-09-01
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=S0366-69132021000300295
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0366-69132021000300295
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/0366-69132021673833101
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 Associação Brasileira de Cerâmica
publisher.none.fl_str_mv Associação Brasileira de Cerâmica
dc.source.none.fl_str_mv Cerâmica v.67 n.383 2021
reponame:Cerâmica (São Paulo. Online)
instname:Universidade de São Paulo (USP)
instacron:USP
instname_str Universidade de São Paulo (USP)
instacron_str USP
institution USP
reponame_str Cerâmica (São Paulo. Online)
collection Cerâmica (São Paulo. Online)
repository.name.fl_str_mv Cerâmica (São Paulo. Online) - Universidade de São Paulo (USP)
repository.mail.fl_str_mv ceram.abc@gmail.com||ceram.abc@gmail.com
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