Magnetized Biochar as a Gold Nanocatalyst Support for p-Nitrophenol Reduction
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Journal of the Brazilian Chemical Society (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532021000801680 |
Resumo: | The biomass use is of considerable ecological and economical interest and here, biochar, a by-product of biomass carbonization, is magnetized with Fe3O4 for its use as gold nanoparticle (NP) support towards catalysis of p-nitrophenol (4-NP) reduction. Biochar was synthesized from coffee straw biomass via pyrolysis, while magnetite functionalization was obtained using the precipitation method. The magnetite was identified by X-ray diffraction (XRD). The material had a specific surface area of 30 m2 g-1 and a zero point charge of 7.5. The gold NPs were deposited via reduction with NaBH4, which yielded Au and Fe3O4 NP of 4.61 and 10.9 nm, respectively. The materials were applied in the 4-NP reduction, Fe3O4Fe 3 O 4 NPs was observed. Remarkably, comparison with graphene oxide to which biochar resembles showed similar behavior, and the material was reused in several catalytic cycles. |
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Magnetized Biochar as a Gold Nanocatalyst Support for p-Nitrophenol Reductionbiocharmagnetic supportgold nanoparticlesnanocatalysis nitrophenol reductionThe biomass use is of considerable ecological and economical interest and here, biochar, a by-product of biomass carbonization, is magnetized with Fe3O4 for its use as gold nanoparticle (NP) support towards catalysis of p-nitrophenol (4-NP) reduction. Biochar was synthesized from coffee straw biomass via pyrolysis, while magnetite functionalization was obtained using the precipitation method. The magnetite was identified by X-ray diffraction (XRD). The material had a specific surface area of 30 m2 g-1 and a zero point charge of 7.5. The gold NPs were deposited via reduction with NaBH4, which yielded Au and Fe3O4 NP of 4.61 and 10.9 nm, respectively. The materials were applied in the 4-NP reduction, Fe3O4Fe 3 O 4 NPs was observed. Remarkably, comparison with graphene oxide to which biochar resembles showed similar behavior, and the material was reused in several catalytic cycles.Sociedade Brasileira de Química2021-08-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532021000801680Journal of the Brazilian Chemical Society v.32 n.8 2021reponame:Journal of the Brazilian Chemical Society (Online)instname:Sociedade Brasileira de Química (SBQ)instacron:SBQ10.21577/0103-5053.20210056info:eu-repo/semantics/openAccessLopes,Renata P.Guimarães,TiagoAstruc,Didiereng2021-07-26T00:00:00Zoai:scielo:S0103-50532021000801680Revistahttp://jbcs.sbq.org.brONGhttps://old.scielo.br/oai/scielo-oai.php||office@jbcs.sbq.org.br1678-47900103-5053opendoar:2021-07-26T00:00Journal of the Brazilian Chemical Society (Online) - Sociedade Brasileira de Química (SBQ)false |
dc.title.none.fl_str_mv |
Magnetized Biochar as a Gold Nanocatalyst Support for p-Nitrophenol Reduction |
title |
Magnetized Biochar as a Gold Nanocatalyst Support for p-Nitrophenol Reduction |
spellingShingle |
Magnetized Biochar as a Gold Nanocatalyst Support for p-Nitrophenol Reduction Lopes,Renata P. biochar magnetic support gold nanoparticles nanocatalysis nitrophenol reduction |
title_short |
Magnetized Biochar as a Gold Nanocatalyst Support for p-Nitrophenol Reduction |
title_full |
Magnetized Biochar as a Gold Nanocatalyst Support for p-Nitrophenol Reduction |
title_fullStr |
Magnetized Biochar as a Gold Nanocatalyst Support for p-Nitrophenol Reduction |
title_full_unstemmed |
Magnetized Biochar as a Gold Nanocatalyst Support for p-Nitrophenol Reduction |
title_sort |
Magnetized Biochar as a Gold Nanocatalyst Support for p-Nitrophenol Reduction |
author |
Lopes,Renata P. |
author_facet |
Lopes,Renata P. Guimarães,Tiago Astruc,Didier |
author_role |
author |
author2 |
Guimarães,Tiago Astruc,Didier |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Lopes,Renata P. Guimarães,Tiago Astruc,Didier |
dc.subject.por.fl_str_mv |
biochar magnetic support gold nanoparticles nanocatalysis nitrophenol reduction |
topic |
biochar magnetic support gold nanoparticles nanocatalysis nitrophenol reduction |
description |
The biomass use is of considerable ecological and economical interest and here, biochar, a by-product of biomass carbonization, is magnetized with Fe3O4 for its use as gold nanoparticle (NP) support towards catalysis of p-nitrophenol (4-NP) reduction. Biochar was synthesized from coffee straw biomass via pyrolysis, while magnetite functionalization was obtained using the precipitation method. The magnetite was identified by X-ray diffraction (XRD). The material had a specific surface area of 30 m2 g-1 and a zero point charge of 7.5. The gold NPs were deposited via reduction with NaBH4, which yielded Au and Fe3O4 NP of 4.61 and 10.9 nm, respectively. The materials were applied in the 4-NP reduction, Fe3O4Fe 3 O 4 NPs was observed. Remarkably, comparison with graphene oxide to which biochar resembles showed similar behavior, and the material was reused in several catalytic cycles. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-08-01 |
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=S0103-50532021000801680 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532021000801680 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.21577/0103-5053.20210056 |
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 |
Journal of the Brazilian Chemical Society v.32 n.8 2021 reponame:Journal of the Brazilian Chemical Society (Online) instname:Sociedade Brasileira de Química (SBQ) instacron:SBQ |
instname_str |
Sociedade Brasileira de Química (SBQ) |
instacron_str |
SBQ |
institution |
SBQ |
reponame_str |
Journal of the Brazilian Chemical Society (Online) |
collection |
Journal of the Brazilian Chemical Society (Online) |
repository.name.fl_str_mv |
Journal of the Brazilian Chemical Society (Online) - Sociedade Brasileira de Química (SBQ) |
repository.mail.fl_str_mv |
||office@jbcs.sbq.org.br |
_version_ |
1750318184405139456 |