AVALIAÇÃO DO PAPEL DO ÓXIDO DE GRAFENO (GO) NA GERAÇÃO FOTOCATALÍTICA DE HIDROGÊNIO EM SISTEMAS BINÁRIOS (GO-CdS) E TERNÁRIOS (Pt-GO-CdS)
Autor(a) principal: | |
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Data de Publicação: | 2018 |
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=S0100-40422018000700748 |
Resumo: | Water splitting is a promising process to produce hydrogen from friendly feedstock and solar energy. In this work we have evaluated binary (GO-CdS) and ternary (Pt-GO-CdS) hybrid photocatalysts for hydrogen production assisted by visible light irradiation. Cadmium sulfide and composites with GO were prepared by sonochemical and thermal methods. GO addition took place by different strategies: during the synthesis or by mechanical mixture. A variety of configurations was tested and the best performance in hydrogen production among all materials was the ternary photocatalyst named Pt(GO/CdSTT), whose hydrogen production rate was 651 µmol gcat-1 h-1. Such material was obtained by thermal method with GO addition during the synthesis. Additionally, the XRD and Raman analyses have confirmed the GO photoreduction during photocatalytic hydrogen evolution. |
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AVALIAÇÃO DO PAPEL DO ÓXIDO DE GRAFENO (GO) NA GERAÇÃO FOTOCATALÍTICA DE HIDROGÊNIO EM SISTEMAS BINÁRIOS (GO-CdS) E TERNÁRIOS (Pt-GO-CdS)water splittinghydrogenphotocatalysisgraphenecadmium sulfidevisible lightWater splitting is a promising process to produce hydrogen from friendly feedstock and solar energy. In this work we have evaluated binary (GO-CdS) and ternary (Pt-GO-CdS) hybrid photocatalysts for hydrogen production assisted by visible light irradiation. Cadmium sulfide and composites with GO were prepared by sonochemical and thermal methods. GO addition took place by different strategies: during the synthesis or by mechanical mixture. A variety of configurations was tested and the best performance in hydrogen production among all materials was the ternary photocatalyst named Pt(GO/CdSTT), whose hydrogen production rate was 651 µmol gcat-1 h-1. Such material was obtained by thermal method with GO addition during the synthesis. Additionally, the XRD and Raman analyses have confirmed the GO photoreduction during photocatalytic hydrogen evolution.Sociedade Brasileira de Química2018-07-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422018000700748Química Nova v.41 n.7 2018reponame:Química Nova (Online)instname:Sociedade Brasileira de Química (SBQ)instacron:SBQ10.21577/0100-4042.20170255info:eu-repo/semantics/openAccessAlmeida,Cristiane GomesTrindade,Tuany Nascimento dos SantosSilva,Marcus Vinicius Santos daSilva,Luciana Almeidapor2018-08-02T00:00:00Zoai:scielo:S0100-40422018000700748Revistahttps://www.scielo.br/j/qn/ONGhttps://old.scielo.br/oai/scielo-oai.phpquimicanova@sbq.org.br1678-70640100-4042opendoar:2018-08-02T00:00Química Nova (Online) - Sociedade Brasileira de Química (SBQ)false |
dc.title.none.fl_str_mv |
AVALIAÇÃO DO PAPEL DO ÓXIDO DE GRAFENO (GO) NA GERAÇÃO FOTOCATALÍTICA DE HIDROGÊNIO EM SISTEMAS BINÁRIOS (GO-CdS) E TERNÁRIOS (Pt-GO-CdS) |
title |
AVALIAÇÃO DO PAPEL DO ÓXIDO DE GRAFENO (GO) NA GERAÇÃO FOTOCATALÍTICA DE HIDROGÊNIO EM SISTEMAS BINÁRIOS (GO-CdS) E TERNÁRIOS (Pt-GO-CdS) |
spellingShingle |
AVALIAÇÃO DO PAPEL DO ÓXIDO DE GRAFENO (GO) NA GERAÇÃO FOTOCATALÍTICA DE HIDROGÊNIO EM SISTEMAS BINÁRIOS (GO-CdS) E TERNÁRIOS (Pt-GO-CdS) Almeida,Cristiane Gomes water splitting hydrogen photocatalysis graphene cadmium sulfide visible light |
title_short |
AVALIAÇÃO DO PAPEL DO ÓXIDO DE GRAFENO (GO) NA GERAÇÃO FOTOCATALÍTICA DE HIDROGÊNIO EM SISTEMAS BINÁRIOS (GO-CdS) E TERNÁRIOS (Pt-GO-CdS) |
title_full |
AVALIAÇÃO DO PAPEL DO ÓXIDO DE GRAFENO (GO) NA GERAÇÃO FOTOCATALÍTICA DE HIDROGÊNIO EM SISTEMAS BINÁRIOS (GO-CdS) E TERNÁRIOS (Pt-GO-CdS) |
title_fullStr |
AVALIAÇÃO DO PAPEL DO ÓXIDO DE GRAFENO (GO) NA GERAÇÃO FOTOCATALÍTICA DE HIDROGÊNIO EM SISTEMAS BINÁRIOS (GO-CdS) E TERNÁRIOS (Pt-GO-CdS) |
title_full_unstemmed |
AVALIAÇÃO DO PAPEL DO ÓXIDO DE GRAFENO (GO) NA GERAÇÃO FOTOCATALÍTICA DE HIDROGÊNIO EM SISTEMAS BINÁRIOS (GO-CdS) E TERNÁRIOS (Pt-GO-CdS) |
title_sort |
AVALIAÇÃO DO PAPEL DO ÓXIDO DE GRAFENO (GO) NA GERAÇÃO FOTOCATALÍTICA DE HIDROGÊNIO EM SISTEMAS BINÁRIOS (GO-CdS) E TERNÁRIOS (Pt-GO-CdS) |
author |
Almeida,Cristiane Gomes |
author_facet |
Almeida,Cristiane Gomes Trindade,Tuany Nascimento dos Santos Silva,Marcus Vinicius Santos da Silva,Luciana Almeida |
author_role |
author |
author2 |
Trindade,Tuany Nascimento dos Santos Silva,Marcus Vinicius Santos da Silva,Luciana Almeida |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Almeida,Cristiane Gomes Trindade,Tuany Nascimento dos Santos Silva,Marcus Vinicius Santos da Silva,Luciana Almeida |
dc.subject.por.fl_str_mv |
water splitting hydrogen photocatalysis graphene cadmium sulfide visible light |
topic |
water splitting hydrogen photocatalysis graphene cadmium sulfide visible light |
description |
Water splitting is a promising process to produce hydrogen from friendly feedstock and solar energy. In this work we have evaluated binary (GO-CdS) and ternary (Pt-GO-CdS) hybrid photocatalysts for hydrogen production assisted by visible light irradiation. Cadmium sulfide and composites with GO were prepared by sonochemical and thermal methods. GO addition took place by different strategies: during the synthesis or by mechanical mixture. A variety of configurations was tested and the best performance in hydrogen production among all materials was the ternary photocatalyst named Pt(GO/CdSTT), whose hydrogen production rate was 651 µmol gcat-1 h-1. Such material was obtained by thermal method with GO addition during the synthesis. Additionally, the XRD and Raman analyses have confirmed the GO photoreduction during photocatalytic hydrogen evolution. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018-07-01 |
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=S0100-40422018000700748 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422018000700748 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
10.21577/0100-4042.20170255 |
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.41 n.7 2018 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_ |
1750318119188955136 |