In Situ Formation of Heterojunctions in Modified Graphitic Carbon Nitride: Synthesis and Noble Metal Free Photocatalysis

<p> Herein, we report the facile synthesis of an efficient roll-like carbon nitride (C3N4) photocatalyst for hydrogen production using a supramolecular complex composed of cyanuric acid, melamine, and barbituric acid as the starting monomers. Optical and photocatalytic investigations show, alo...

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Detalhes bibliográficos
Autores: Shalom, Menny, Guttentag, Miguel, Fettkenhauer, Christian, Inal, Sanika, Neher, Dieter, Llobet, Antoni, Antonietti, Markus
Formato: artículo
Fecha de publicación:2014
País:España
Recursos:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
Repositorio:Recercat. Dipósit de la Recerca de Catalunya
OAI Identifier:oai:recercat.cat:2072/305880
Acesso em linha:http://hdl.handle.net/2072/305880
https://doi.org/10.1021/cm503258z
Access Level:acceso abierto
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spelling In Situ Formation of Heterojunctions in Modified Graphitic Carbon Nitride: Synthesis and Noble Metal Free PhotocatalysisShalom, MennyGuttentag, MiguelFettkenhauer, ChristianInal, SanikaNeher, DieterLlobet, AntoniAntonietti, Markus<p> Herein, we report the facile synthesis of an efficient roll-like carbon nitride (C3N4) photocatalyst for hydrogen production using a supramolecular complex composed of cyanuric acid, melamine, and barbituric acid as the starting monomers. Optical and photocatalytic investigations show, along with the known red shift of absorption into the visible region, that the insertion of barbituric acid results in the in situ formation of in-plane heterojuctions, which enhance the charge separation process under illumination. Moreover, platinum as the standard cocatalyst in photocatalysis could be successfully replaced with first row transition metal salts and complexes under retention of 50% of the catalytic activity. Their mode of deposition and interaction with the semiconductor was studied in detail. Utilization of the supramolecular approach opens new opportunities to manipulate the charge transfer process within carbon nitride with respect to the design of a more efficient carbon nitride photocatalyst with controlled morphology and optical properties.</p>American Chemical Society2014info:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/2072/305880https://doi.org/10.1021/cm503258zRECERCAT (Dipòsit de la Recerca de Catalunya)reponame:Recercat. Dipósit de la Recerca de Catalunyainstname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)InglésMINECO with FEDER FundsProyectos I+D+I - Retos 2013PRO-HChemistry of MaterialsCTQ2013-49075-RCopyright © 2014 American Chemical Societyinfo:eu-repo/semantics/openAccessoai:recercat.cat:2072/3058802026-05-29T05:05:01Z
dc.title.none.fl_str_mv In Situ Formation of Heterojunctions in Modified Graphitic Carbon Nitride: Synthesis and Noble Metal Free Photocatalysis
title In Situ Formation of Heterojunctions in Modified Graphitic Carbon Nitride: Synthesis and Noble Metal Free Photocatalysis
spellingShingle In Situ Formation of Heterojunctions in Modified Graphitic Carbon Nitride: Synthesis and Noble Metal Free Photocatalysis
Shalom, Menny
title_short In Situ Formation of Heterojunctions in Modified Graphitic Carbon Nitride: Synthesis and Noble Metal Free Photocatalysis
title_full In Situ Formation of Heterojunctions in Modified Graphitic Carbon Nitride: Synthesis and Noble Metal Free Photocatalysis
title_fullStr In Situ Formation of Heterojunctions in Modified Graphitic Carbon Nitride: Synthesis and Noble Metal Free Photocatalysis
title_full_unstemmed In Situ Formation of Heterojunctions in Modified Graphitic Carbon Nitride: Synthesis and Noble Metal Free Photocatalysis
title_sort In Situ Formation of Heterojunctions in Modified Graphitic Carbon Nitride: Synthesis and Noble Metal Free Photocatalysis
dc.creator.none.fl_str_mv Shalom, Menny
Guttentag, Miguel
Fettkenhauer, Christian
Inal, Sanika
Neher, Dieter
Llobet, Antoni
Antonietti, Markus
author Shalom, Menny
author_facet Shalom, Menny
Guttentag, Miguel
Fettkenhauer, Christian
Inal, Sanika
Neher, Dieter
Llobet, Antoni
Antonietti, Markus
author_role author
author2 Guttentag, Miguel
Fettkenhauer, Christian
Inal, Sanika
Neher, Dieter
Llobet, Antoni
Antonietti, Markus
author2_role author
author
author
author
author
author
description <p> Herein, we report the facile synthesis of an efficient roll-like carbon nitride (C3N4) photocatalyst for hydrogen production using a supramolecular complex composed of cyanuric acid, melamine, and barbituric acid as the starting monomers. Optical and photocatalytic investigations show, along with the known red shift of absorption into the visible region, that the insertion of barbituric acid results in the in situ formation of in-plane heterojuctions, which enhance the charge separation process under illumination. Moreover, platinum as the standard cocatalyst in photocatalysis could be successfully replaced with first row transition metal salts and complexes under retention of 50% of the catalytic activity. Their mode of deposition and interaction with the semiconductor was studied in detail. Utilization of the supramolecular approach opens new opportunities to manipulate the charge transfer process within carbon nitride with respect to the design of a more efficient carbon nitride photocatalyst with controlled morphology and optical properties.</p>
publishDate 2014
dc.date.none.fl_str_mv 2014
dc.type.none.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/2072/305880
https://doi.org/10.1021/cm503258z
url http://hdl.handle.net/2072/305880
https://doi.org/10.1021/cm503258z
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv MINECO with FEDER Funds
Proyectos I+D+I - Retos 2013
PRO-H
Chemistry of Materials
CTQ2013-49075-R
dc.rights.none.fl_str_mv Copyright © 2014 American Chemical Society
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Copyright © 2014 American Chemical Society
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv American Chemical Society
publisher.none.fl_str_mv American Chemical Society
dc.source.none.fl_str_mv RECERCAT (Dipòsit de la Recerca de Catalunya)
reponame:Recercat. Dipósit de la Recerca de Catalunya
instname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
instname_str Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
reponame_str Recercat. Dipósit de la Recerca de Catalunya
collection Recercat. Dipósit de la Recerca de Catalunya
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,812429

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