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dc.contributor.author
Da Silva, Monickarla Teixeira Pegado
dc.contributor.author
Barbosa, Felipe Fernandes
dc.contributor.author
Morales Torre, Marco Antonio
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Villarroel Rocha, Jhonny
dc.contributor.author
Sapag, Manuel Karim
dc.contributor.author
Pergher, Sibele
dc.contributor.author
Braga, Tiago Pinheiro
dc.date.available
2021-02-13T00:27:24Z
dc.date.issued
2020-02
dc.identifier.citation
Da Silva, Monickarla Teixeira Pegado; Barbosa, Felipe Fernandes; Morales Torre, Marco Antonio; Villarroel Rocha, Jhonny; Sapag, Manuel Karim; et al.; Synthesis of Fe2SiO4-Fe7Co3 nanocomposite dispersed in the mesoporous SBA-15: Application as magnetically separable adsorbent; Molecular Diversity Preservation International; Molecules; 25; 4; 2-2020; 1-24; 1016
dc.identifier.issn
1420-3049
dc.identifier.uri
http://hdl.handle.net/11336/125670
dc.description.abstract
The mixture containing alloy and oxide with iron-based phases has shown interesting properties compared to the isolated species and the synergy between the phases has shown positive effect on dye adsorption. This paper describes the synthesis of Fe2SiO4-Fe7Co3-based nanocomposite dispersed in Santa Barbara Amorphous (SBA)-15 and its application in dye adsorption followed by magnetic separation. Thus, it was studied the variation of reduction temperature and amount of hydrogen used in synthesis and the effect of these parameters on the physicochemical properties of the iron and cobalt based oxide/alloy mixture, as well as the methylene blue adsorption capacity. The XRD and Mössbauer results, along with the temperature-programmed reduction (TPR) profiles, confirmed the formation of Fe2SiO4-Fe7Co3-based nanocomposites. Low-angle XRD, N2 isotherms, and TEM images show the formation of the SBA-15 based mesoporous support with a high surface area (640 m2/g). Adsorption tests confirmed that the material reduced at 700 ◦C using 2% of H2 presented the highest adsorption capacity (49 mg/g). The nanocomposites can be easily separated from the dispersion by applying an external magnetic field. The interaction between the dye and the nanocomposite occurs mainly by π-π interactions and the mixture of the Fe2SiO4 and Fe7Co3 leads to a synergistic effect, which favor the adsorption.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Molecular Diversity Preservation International
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by/2.5/ar/
dc.subject
ADSORPTION
dc.subject
DYES
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FE2SIO4 OXIDE
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FE7CO3 ALLOY
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MAGNETIC NANOCOMPOSITE
dc.subject.classification
Nano-materiales
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Nanotecnología
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INGENIERÍAS Y TECNOLOGÍAS
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Físico-Química, Ciencia de los Polímeros, Electroquímica
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Ciencias Químicas
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CIENCIAS NATURALES Y EXACTAS
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Otras Ciencias Físicas
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Ciencias Físicas
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CIENCIAS NATURALES Y EXACTAS
dc.title
Synthesis of Fe2SiO4-Fe7Co3 nanocomposite dispersed in the mesoporous SBA-15: Application as magnetically separable adsorbent
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2021-01-27T19:51:26Z
dc.journal.volume
25
dc.journal.number
4
dc.journal.pagination
1-24; 1016
dc.journal.pais
Suiza
dc.journal.ciudad
Basel
dc.description.fil
Fil: Da Silva, Monickarla Teixeira Pegado. Universidade Federal do Rio Grande do Norte; Brasil
dc.description.fil
Fil: Barbosa, Felipe Fernandes. Universidade Federal do Rio Grande do Norte; Brasil
dc.description.fil
Fil: Morales Torre, Marco Antonio. Universidade Federal do Rio Grande do Norte; Brasil
dc.description.fil
Fil: Villarroel Rocha, Jhonny. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto de Física Aplicada "Dr. Jorge Andrés Zgrablich". Universidad Nacional de San Luis. Facultad de Ciencias Físico Matemáticas y Naturales. Instituto de Física Aplicada "Dr. Jorge Andrés Zgrablich"; Argentina
dc.description.fil
Fil: Sapag, Manuel Karim. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto de Física Aplicada "Dr. Jorge Andrés Zgrablich". Universidad Nacional de San Luis. Facultad de Ciencias Físico Matemáticas y Naturales. Instituto de Física Aplicada "Dr. Jorge Andrés Zgrablich"; Argentina
dc.description.fil
Fil: Pergher, Sibele. Universidade Federal do Rio Grande do Norte; Brasil
dc.description.fil
Fil: Braga, Tiago Pinheiro. Universidade Federal do Rio Grande do Norte; Brasil
dc.journal.title
Molecules
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.mdpi.com/1420-3049/25/4/1016
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.3390/molecules25041016
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