EFEITO DO HG2+ E DOS ÍONS CU2+, FE2+, NI2+, SN2+ E ZN2+ NA ESTABILIDADE DE NANOPARTÍCULAS DE PRATA: UMA PRÁTICA INTERDISCIPLINAR DE NANOTECNOLOGIA EXPERIMENTAL
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Química Nova (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422021000400512 |
Resumo: | The growing predominance of nanoscience and nanotechnology makes it increasingly important that these topics become an integral part of all scientific education. For this reason, in the present work, an interdisciplinary experiment of nanotechnology is introduced. As silver nanoparticles (AgNPs) are the most applied nanomaterial in consumer products, the current understanding of their stability is needed. Silver nanoparticles were synthesized using chitosan as a capping agent and a size distribution of 9.7 nm was determined by transmission electron microscopy. After preparation, the AgNPs colloid was divided into two parts. One part was stored in dark at 4.0 ± 1.0 ºC and it was removed out from the fridge only to be analyzed by UV-vis. The second part was used to study the colloid stability in the presence of Hg2+, and also in the combination of mercury with the ions Cu2+, Fe2+, Ni2+, Sn2+, and Zn2+. The UV-vis analysis indicated that the AgNPs were oxidized in the presence of these ions, but in different intensities, which can be explained by using the electrochemistry approach. This work may be relevant for graduate-level or upper-level undergraduate experimental course preparation as the procedure is simple and easily reproducible in a typical chemistry laboratory. |
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Química Nova (Online) |
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EFEITO DO HG2+ E DOS ÍONS CU2+, FE2+, NI2+, SN2+ E ZN2+ NA ESTABILIDADE DE NANOPARTÍCULAS DE PRATA: UMA PRÁTICA INTERDISCIPLINAR DE NANOTECNOLOGIA EXPERIMENTALnanosciencenanotechnologyinterdisciplinarysilver nanoparticlesmetallic ionsUV-visThe growing predominance of nanoscience and nanotechnology makes it increasingly important that these topics become an integral part of all scientific education. For this reason, in the present work, an interdisciplinary experiment of nanotechnology is introduced. As silver nanoparticles (AgNPs) are the most applied nanomaterial in consumer products, the current understanding of their stability is needed. Silver nanoparticles were synthesized using chitosan as a capping agent and a size distribution of 9.7 nm was determined by transmission electron microscopy. After preparation, the AgNPs colloid was divided into two parts. One part was stored in dark at 4.0 ± 1.0 ºC and it was removed out from the fridge only to be analyzed by UV-vis. The second part was used to study the colloid stability in the presence of Hg2+, and also in the combination of mercury with the ions Cu2+, Fe2+, Ni2+, Sn2+, and Zn2+. The UV-vis analysis indicated that the AgNPs were oxidized in the presence of these ions, but in different intensities, which can be explained by using the electrochemistry approach. This work may be relevant for graduate-level or upper-level undergraduate experimental course preparation as the procedure is simple and easily reproducible in a typical chemistry laboratory.Sociedade Brasileira de Química2021-04-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422021000400512Química Nova v.44 n.4 2021reponame:Química Nova (Online)instname:Sociedade Brasileira de Química (SBQ)instacron:SBQ10.21577/0100-4042.20170679info:eu-repo/semantics/openAccessKatanosaka,Aline KaoriFostier,Anne HeleneSantos,Elias Barrospor2021-07-26T00:00:00Zoai:scielo:S0100-40422021000400512Revistahttps://www.scielo.br/j/qn/ONGhttps://old.scielo.br/oai/scielo-oai.phpquimicanova@sbq.org.br1678-70640100-4042opendoar:2021-07-26T00:00Química Nova (Online) - Sociedade Brasileira de Química (SBQ)false |
dc.title.none.fl_str_mv |
EFEITO DO HG2+ E DOS ÍONS CU2+, FE2+, NI2+, SN2+ E ZN2+ NA ESTABILIDADE DE NANOPARTÍCULAS DE PRATA: UMA PRÁTICA INTERDISCIPLINAR DE NANOTECNOLOGIA EXPERIMENTAL |
title |
EFEITO DO HG2+ E DOS ÍONS CU2+, FE2+, NI2+, SN2+ E ZN2+ NA ESTABILIDADE DE NANOPARTÍCULAS DE PRATA: UMA PRÁTICA INTERDISCIPLINAR DE NANOTECNOLOGIA EXPERIMENTAL |
spellingShingle |
EFEITO DO HG2+ E DOS ÍONS CU2+, FE2+, NI2+, SN2+ E ZN2+ NA ESTABILIDADE DE NANOPARTÍCULAS DE PRATA: UMA PRÁTICA INTERDISCIPLINAR DE NANOTECNOLOGIA EXPERIMENTAL Katanosaka,Aline Kaori nanoscience nanotechnology interdisciplinary silver nanoparticles metallic ions UV-vis |
title_short |
EFEITO DO HG2+ E DOS ÍONS CU2+, FE2+, NI2+, SN2+ E ZN2+ NA ESTABILIDADE DE NANOPARTÍCULAS DE PRATA: UMA PRÁTICA INTERDISCIPLINAR DE NANOTECNOLOGIA EXPERIMENTAL |
title_full |
EFEITO DO HG2+ E DOS ÍONS CU2+, FE2+, NI2+, SN2+ E ZN2+ NA ESTABILIDADE DE NANOPARTÍCULAS DE PRATA: UMA PRÁTICA INTERDISCIPLINAR DE NANOTECNOLOGIA EXPERIMENTAL |
title_fullStr |
EFEITO DO HG2+ E DOS ÍONS CU2+, FE2+, NI2+, SN2+ E ZN2+ NA ESTABILIDADE DE NANOPARTÍCULAS DE PRATA: UMA PRÁTICA INTERDISCIPLINAR DE NANOTECNOLOGIA EXPERIMENTAL |
title_full_unstemmed |
EFEITO DO HG2+ E DOS ÍONS CU2+, FE2+, NI2+, SN2+ E ZN2+ NA ESTABILIDADE DE NANOPARTÍCULAS DE PRATA: UMA PRÁTICA INTERDISCIPLINAR DE NANOTECNOLOGIA EXPERIMENTAL |
title_sort |
EFEITO DO HG2+ E DOS ÍONS CU2+, FE2+, NI2+, SN2+ E ZN2+ NA ESTABILIDADE DE NANOPARTÍCULAS DE PRATA: UMA PRÁTICA INTERDISCIPLINAR DE NANOTECNOLOGIA EXPERIMENTAL |
author |
Katanosaka,Aline Kaori |
author_facet |
Katanosaka,Aline Kaori Fostier,Anne Helene Santos,Elias Barros |
author_role |
author |
author2 |
Fostier,Anne Helene Santos,Elias Barros |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Katanosaka,Aline Kaori Fostier,Anne Helene Santos,Elias Barros |
dc.subject.por.fl_str_mv |
nanoscience nanotechnology interdisciplinary silver nanoparticles metallic ions UV-vis |
topic |
nanoscience nanotechnology interdisciplinary silver nanoparticles metallic ions UV-vis |
description |
The growing predominance of nanoscience and nanotechnology makes it increasingly important that these topics become an integral part of all scientific education. For this reason, in the present work, an interdisciplinary experiment of nanotechnology is introduced. As silver nanoparticles (AgNPs) are the most applied nanomaterial in consumer products, the current understanding of their stability is needed. Silver nanoparticles were synthesized using chitosan as a capping agent and a size distribution of 9.7 nm was determined by transmission electron microscopy. After preparation, the AgNPs colloid was divided into two parts. One part was stored in dark at 4.0 ± 1.0 ºC and it was removed out from the fridge only to be analyzed by UV-vis. The second part was used to study the colloid stability in the presence of Hg2+, and also in the combination of mercury with the ions Cu2+, Fe2+, Ni2+, Sn2+, and Zn2+. The UV-vis analysis indicated that the AgNPs were oxidized in the presence of these ions, but in different intensities, which can be explained by using the electrochemistry approach. This work may be relevant for graduate-level or upper-level undergraduate experimental course preparation as the procedure is simple and easily reproducible in a typical chemistry laboratory. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-04-01 |
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=S0100-40422021000400512 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422021000400512 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
10.21577/0100-4042.20170679 |
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.44 n.4 2021 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 |
_version_ |
1750318121095266304 |