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

Detalhes bibliográficos
Autor(a) principal: Silveira, M. L.D.C. [UNESP]
Data de Publicação: 2021
Outros Autores: Silva, I. M.B. [UNESP], Magdalena, A. G. [UNESP]
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.1590/0366-69132021673833101
http://hdl.handle.net/11449/222588
Resumo: Fe3O4nanoparticles were synthesized and functionalized with (3-aminopropyl) trimethoxysilane (APTMS) and chitosan, forming Fe3O4-NH2 and Fe3O4-NH2-chitosan nanoparticles. The Fe3O4nanoparticles 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 Fe3O4nanoparticles was confirmed by FTIR and zeta potential measurements. The TEM results showed a thin layer around Fe3O4nanoparticles 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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spelling Synthesis and characterization of Fe3O4-NH2 and Fe3O4-NH2-chitosan nanoparticlesFunctionalizationNanoparticlesSurface modificationFe3O4nanoparticles were synthesized and functionalized with (3-aminopropyl) trimethoxysilane (APTMS) and chitosan, forming Fe3O4-NH2 and Fe3O4-NH2-chitosan nanoparticles. The Fe3O4nanoparticles 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 Fe3O4nanoparticles was confirmed by FTIR and zeta potential measurements. The TEM results showed a thin layer around Fe3O4nanoparticles 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.UNESP-São Paulo State University School of Science Department of ChemistryUNESP-São Paulo State University School of Science Department of ChemistryUniversidade Estadual Paulista (UNESP)Silveira, M. L.D.C. [UNESP]Silva, I. M.B. [UNESP]Magdalena, A. G. [UNESP]2022-04-28T19:45:31Z2022-04-28T19:45:31Z2021-07-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article295-300http://dx.doi.org/10.1590/0366-69132021673833101Ceramica, v. 67, n. 383, p. 295-300, 2021.1678-45530366-6913http://hdl.handle.net/11449/22258810.1590/0366-691320216738331012-s2.0-85116607255Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengCeramicainfo:eu-repo/semantics/openAccess2022-04-28T19:45:31Zoai:repositorio.unesp.br:11449/222588Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462022-04-28T19:45:31Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)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. [UNESP]
Functionalization
Nanoparticles
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. [UNESP]
author_facet Silveira, M. L.D.C. [UNESP]
Silva, I. M.B. [UNESP]
Magdalena, A. G. [UNESP]
author_role author
author2 Silva, I. M.B. [UNESP]
Magdalena, A. G. [UNESP]
author2_role author
author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (UNESP)
dc.contributor.author.fl_str_mv Silveira, M. L.D.C. [UNESP]
Silva, I. M.B. [UNESP]
Magdalena, A. G. [UNESP]
dc.subject.por.fl_str_mv Functionalization
Nanoparticles
Surface modification
topic Functionalization
Nanoparticles
Surface modification
description Fe3O4nanoparticles were synthesized and functionalized with (3-aminopropyl) trimethoxysilane (APTMS) and chitosan, forming Fe3O4-NH2 and Fe3O4-NH2-chitosan nanoparticles. The Fe3O4nanoparticles 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 Fe3O4nanoparticles was confirmed by FTIR and zeta potential measurements. The TEM results showed a thin layer around Fe3O4nanoparticles 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 2021-07-01
2022-04-28T19:45:31Z
2022-04-28T19:45:31Z
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.uri.fl_str_mv http://dx.doi.org/10.1590/0366-69132021673833101
Ceramica, v. 67, n. 383, p. 295-300, 2021.
1678-4553
0366-6913
http://hdl.handle.net/11449/222588
10.1590/0366-69132021673833101
2-s2.0-85116607255
url http://dx.doi.org/10.1590/0366-69132021673833101
http://hdl.handle.net/11449/222588
identifier_str_mv Ceramica, v. 67, n. 383, p. 295-300, 2021.
1678-4553
0366-6913
10.1590/0366-69132021673833101
2-s2.0-85116607255
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Ceramica
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 295-300
dc.source.none.fl_str_mv Scopus
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
repository.mail.fl_str_mv
_version_ 1797789361022959616

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