Modulating the photoelectrocatalytic conversion of CO2 to methanol and/or H2O to hydrogen at a phosphorene modified Ti/TiO2 electrode
Autor(a) principal: | |
---|---|
Data de Publicação: | 2022 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1039/d2tc01814d http://hdl.handle.net/11449/242109 |
Resumo: | The effect of phosphorene as a co-catalyst for Ti/TiO2 nanotube electrodes on CO2 reduction to methanol, and water splitting was investigated. The electrode was prepared by using poly-dopamine as an anchoring agent to attach phosphorene, which was initially prepared by liquid exfoliation from black phosphorous. In this photoelectrocatalytic system, phosphorene acts as a p-type semiconductor with an energy band gap of −1.46 eV and strong photoactivation under visible light irradiation. Under optimized conditions, solar simulator irradiation and applied potential of −0.8 V in 0.1 mol L−1 Na2SO4 and pH 7 the CO2 reduction is preponderant in the process. The electrode system was found to also promote the production of hydrogen from water reduction when the photoelectrocatalytic process is conducted at the applied potential of −1.0 V in 0.1 mol L−1 Na2SO4 (pH 2). The results indicate that phosphorene can be a good modifier of Ti/TiO2, and the high charge mobility amplify its potential applicability to CO2 conversion. |
id |
UNSP_5e58d4474b7aa8b311fc564e3151df1e |
---|---|
oai_identifier_str |
oai:repositorio.unesp.br:11449/242109 |
network_acronym_str |
UNSP |
network_name_str |
Repositório Institucional da UNESP |
repository_id_str |
2946 |
spelling |
Modulating the photoelectrocatalytic conversion of CO2 to methanol and/or H2O to hydrogen at a phosphorene modified Ti/TiO2 electrodeThe effect of phosphorene as a co-catalyst for Ti/TiO2 nanotube electrodes on CO2 reduction to methanol, and water splitting was investigated. The electrode was prepared by using poly-dopamine as an anchoring agent to attach phosphorene, which was initially prepared by liquid exfoliation from black phosphorous. In this photoelectrocatalytic system, phosphorene acts as a p-type semiconductor with an energy band gap of −1.46 eV and strong photoactivation under visible light irradiation. Under optimized conditions, solar simulator irradiation and applied potential of −0.8 V in 0.1 mol L−1 Na2SO4 and pH 7 the CO2 reduction is preponderant in the process. The electrode system was found to also promote the production of hydrogen from water reduction when the photoelectrocatalytic process is conducted at the applied potential of −1.0 V in 0.1 mol L−1 Na2SO4 (pH 2). The results indicate that phosphorene can be a good modifier of Ti/TiO2, and the high charge mobility amplify its potential applicability to CO2 conversion.Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Wake Forest UniversityInstitute of Chemistry Sao Paulo State University (UNESP), SPDepartment of Chemistry Wake Forest UniversityCenter for Energy Environment and Sustainability Wake Forest UniversityCenter for Functional Materials Wake Forest UniversityInstitute of Chemistry Sao Paulo State University (UNESP), SPUniversidade Estadual Paulista (UNESP)Wake Forest UniversitySayao, Fabiana Avolio [UNESP]Ma, XiaoZanoni, Maria Valnice Boldrin [UNESP]Lachgar, Abdessadek2023-03-02T09:12:13Z2023-03-02T09:12:13Z2022-07-13info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article11276-11285http://dx.doi.org/10.1039/d2tc01814dJournal of Materials Chemistry C, v. 10, n. 31, p. 11276-11285, 2022.2050-7534http://hdl.handle.net/11449/24210910.1039/d2tc01814d2-s2.0-85135335456Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengJournal of Materials Chemistry Cinfo:eu-repo/semantics/openAccess2023-03-02T09:12:13Zoai:repositorio.unesp.br:11449/242109Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462023-03-02T09:12:13Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Modulating the photoelectrocatalytic conversion of CO2 to methanol and/or H2O to hydrogen at a phosphorene modified Ti/TiO2 electrode |
title |
Modulating the photoelectrocatalytic conversion of CO2 to methanol and/or H2O to hydrogen at a phosphorene modified Ti/TiO2 electrode |
spellingShingle |
Modulating the photoelectrocatalytic conversion of CO2 to methanol and/or H2O to hydrogen at a phosphorene modified Ti/TiO2 electrode Sayao, Fabiana Avolio [UNESP] |
title_short |
Modulating the photoelectrocatalytic conversion of CO2 to methanol and/or H2O to hydrogen at a phosphorene modified Ti/TiO2 electrode |
title_full |
Modulating the photoelectrocatalytic conversion of CO2 to methanol and/or H2O to hydrogen at a phosphorene modified Ti/TiO2 electrode |
title_fullStr |
Modulating the photoelectrocatalytic conversion of CO2 to methanol and/or H2O to hydrogen at a phosphorene modified Ti/TiO2 electrode |
title_full_unstemmed |
Modulating the photoelectrocatalytic conversion of CO2 to methanol and/or H2O to hydrogen at a phosphorene modified Ti/TiO2 electrode |
title_sort |
Modulating the photoelectrocatalytic conversion of CO2 to methanol and/or H2O to hydrogen at a phosphorene modified Ti/TiO2 electrode |
author |
Sayao, Fabiana Avolio [UNESP] |
author_facet |
Sayao, Fabiana Avolio [UNESP] Ma, Xiao Zanoni, Maria Valnice Boldrin [UNESP] Lachgar, Abdessadek |
author_role |
author |
author2 |
Ma, Xiao Zanoni, Maria Valnice Boldrin [UNESP] Lachgar, Abdessadek |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (UNESP) Wake Forest University |
dc.contributor.author.fl_str_mv |
Sayao, Fabiana Avolio [UNESP] Ma, Xiao Zanoni, Maria Valnice Boldrin [UNESP] Lachgar, Abdessadek |
description |
The effect of phosphorene as a co-catalyst for Ti/TiO2 nanotube electrodes on CO2 reduction to methanol, and water splitting was investigated. The electrode was prepared by using poly-dopamine as an anchoring agent to attach phosphorene, which was initially prepared by liquid exfoliation from black phosphorous. In this photoelectrocatalytic system, phosphorene acts as a p-type semiconductor with an energy band gap of −1.46 eV and strong photoactivation under visible light irradiation. Under optimized conditions, solar simulator irradiation and applied potential of −0.8 V in 0.1 mol L−1 Na2SO4 and pH 7 the CO2 reduction is preponderant in the process. The electrode system was found to also promote the production of hydrogen from water reduction when the photoelectrocatalytic process is conducted at the applied potential of −1.0 V in 0.1 mol L−1 Na2SO4 (pH 2). The results indicate that phosphorene can be a good modifier of Ti/TiO2, and the high charge mobility amplify its potential applicability to CO2 conversion. |
publishDate |
2022 |
dc.date.none.fl_str_mv |
2022-07-13 2023-03-02T09:12:13Z 2023-03-02T09:12:13Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1039/d2tc01814d Journal of Materials Chemistry C, v. 10, n. 31, p. 11276-11285, 2022. 2050-7534 http://hdl.handle.net/11449/242109 10.1039/d2tc01814d 2-s2.0-85135335456 |
url |
http://dx.doi.org/10.1039/d2tc01814d http://hdl.handle.net/11449/242109 |
identifier_str_mv |
Journal of Materials Chemistry C, v. 10, n. 31, p. 11276-11285, 2022. 2050-7534 10.1039/d2tc01814d 2-s2.0-85135335456 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Journal of Materials Chemistry C |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
11276-11285 |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1803047453478354944 |