Unsymmetrical bis(thiosemicarbazone) ligands and their nickel(II) complexes: Synthesis, characterization and photocatalytic activity

The widespread use of organic dyes in industrial processes has led to a considerable release of these compounds into water systems, making the removal of organic contaminants from freshwater a pressing challenge. Photocatalysis, particularly through coordination compounds, presents a promising solut...

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Detalhes bibliográficos
Autores: Burón, Rodrigo, González Calatayud, David, Mendiola M.A., López Torres, Elena Sofía
Formato: artículo
Fecha de publicación:2025
País:España
Recursos:Universidad Autónoma de Madrid
Repositorio:Biblos-e Archivo. Repositorio Institucional de la UAM
Idioma:inglés
OAI Identifier:oai:dnet:biblosearchi::884d69c539d97eb0369be136a134a8fb
Acesso em linha:https://hdl.handle.net/10486/764940
https://dx.doi.org/10.3390/inorganics13020040
Access Level:acceso abierto
Palavra-chave:HER
thiosemicarbazones
nickel
electrocatalysis
Química
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spelling Unsymmetrical bis(thiosemicarbazone) ligands and their nickel(II) complexes: Synthesis, characterization and photocatalytic activityBurón, RodrigoGonzález Calatayud, DavidMendiola M.A.López Torres, Elena SofíaHERthiosemicarbazonesnickelelectrocatalysisQuímicaThe widespread use of organic dyes in industrial processes has led to a considerable release of these compounds into water systems, making the removal of organic contaminants from freshwater a pressing challenge. Photocatalysis, particularly through coordination compounds, presents a promising solution to this problem. In this study, we report the synthesis and characterization of three novel dissymmetric bis(thiosemicarbazone) ligands and their corresponding nickel(II) complexes, which have been extensively analyzed using various techniques. We evaluated the photocatalytic degradation of methyl orange by these nickel complexes, with results demonstrating that they exhibit superior efficiency compared to previously reported nickel-based complexes. Theoretical calculations reveal a correlation between the HOMO–LUMO energy gap and the energies of the involved orbitals. Additionally, with the growing demand for sustainable fuels that do not contribute to greenhouse gas emissions, molecular hydrogen stands out as a promising candidate. Given the potential of bis(thiosemicarbazone) complexes for electrocatalytic hydrogen evolution, we performed preliminary experiments to assess the ability of these nickel complexes to function as photocatalysts for water splitting. The results show that the three nickel complexes successfully generate hydrogen under the tested conditions, although further optimization is necessary to improve hydrogen production efficiencyThis research was funded by grant TED2021-129876B-I00 of the Ministerio de Ciencia, Innovación y Universidades (Spain)Multidisciplinary Digital Publishing Institute (MDPI)Facultad de CienciasDepartamento de Química InorgánicaCompuestos de Coordinación con Actividad Biológica y CatalíticaAgencia Estatal de Investigación20252025-01-29research articlehttp://purl.org/coar/resource_type/c_2df8fbb1VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/10486/764940https://dx.doi.org/10.3390/inorganics13020040reponame:Biblos-e Archivo. Repositorio Institucional de la UAMinstname:Universidad Autónoma de MadridInglésengopen accesshttp://purl.org/coar/access_right/c_abf2Attribution 4.0 Internationalhttp://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessoai:dnet:biblosearchi::884d69c539d97eb0369be136a134a8fb2026-06-23T12:46:27Z
dc.title.none.fl_str_mv Unsymmetrical bis(thiosemicarbazone) ligands and their nickel(II) complexes: Synthesis, characterization and photocatalytic activity
title Unsymmetrical bis(thiosemicarbazone) ligands and their nickel(II) complexes: Synthesis, characterization and photocatalytic activity
spellingShingle Unsymmetrical bis(thiosemicarbazone) ligands and their nickel(II) complexes: Synthesis, characterization and photocatalytic activity
Burón, Rodrigo
HER
thiosemicarbazones
nickel
electrocatalysis
Química
title_short Unsymmetrical bis(thiosemicarbazone) ligands and their nickel(II) complexes: Synthesis, characterization and photocatalytic activity
title_full Unsymmetrical bis(thiosemicarbazone) ligands and their nickel(II) complexes: Synthesis, characterization and photocatalytic activity
title_fullStr Unsymmetrical bis(thiosemicarbazone) ligands and their nickel(II) complexes: Synthesis, characterization and photocatalytic activity
title_full_unstemmed Unsymmetrical bis(thiosemicarbazone) ligands and their nickel(II) complexes: Synthesis, characterization and photocatalytic activity
title_sort Unsymmetrical bis(thiosemicarbazone) ligands and their nickel(II) complexes: Synthesis, characterization and photocatalytic activity
dc.creator.none.fl_str_mv Burón, Rodrigo
González Calatayud, David
Mendiola M.A.
López Torres, Elena Sofía
author Burón, Rodrigo
author_facet Burón, Rodrigo
González Calatayud, David
Mendiola M.A.
López Torres, Elena Sofía
author_role author
author2 González Calatayud, David
Mendiola M.A.
López Torres, Elena Sofía
author2_role author
author
author
dc.contributor.none.fl_str_mv Facultad de Ciencias
Departamento de Química Inorgánica
Compuestos de Coordinación con Actividad Biológica y Catalítica
Agencia Estatal de Investigación
dc.subject.none.fl_str_mv HER
thiosemicarbazones
nickel
electrocatalysis
Química
topic HER
thiosemicarbazones
nickel
electrocatalysis
Química
description The widespread use of organic dyes in industrial processes has led to a considerable release of these compounds into water systems, making the removal of organic contaminants from freshwater a pressing challenge. Photocatalysis, particularly through coordination compounds, presents a promising solution to this problem. In this study, we report the synthesis and characterization of three novel dissymmetric bis(thiosemicarbazone) ligands and their corresponding nickel(II) complexes, which have been extensively analyzed using various techniques. We evaluated the photocatalytic degradation of methyl orange by these nickel complexes, with results demonstrating that they exhibit superior efficiency compared to previously reported nickel-based complexes. Theoretical calculations reveal a correlation between the HOMO–LUMO energy gap and the energies of the involved orbitals. Additionally, with the growing demand for sustainable fuels that do not contribute to greenhouse gas emissions, molecular hydrogen stands out as a promising candidate. Given the potential of bis(thiosemicarbazone) complexes for electrocatalytic hydrogen evolution, we performed preliminary experiments to assess the ability of these nickel complexes to function as photocatalysts for water splitting. The results show that the three nickel complexes successfully generate hydrogen under the tested conditions, although further optimization is necessary to improve hydrogen production efficiency
publishDate 2025
dc.date.none.fl_str_mv 2025
2025-01-29
dc.type.none.fl_str_mv research article
http://purl.org/coar/resource_type/c_2df8fbb1
VoR
http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/10486/764940
https://dx.doi.org/10.3390/inorganics13020040
url https://hdl.handle.net/10486/764940
https://dx.doi.org/10.3390/inorganics13020040
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution 4.0 International
http://creativecommons.org/licenses/by/4.0/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution 4.0 International
http://creativecommons.org/licenses/by/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Multidisciplinary Digital Publishing Institute (MDPI)
publisher.none.fl_str_mv Multidisciplinary Digital Publishing Institute (MDPI)
dc.source.none.fl_str_mv reponame:Biblos-e Archivo. Repositorio Institucional de la UAM
instname:Universidad Autónoma de Madrid
instname_str Universidad Autónoma de Madrid
reponame_str Biblos-e Archivo. Repositorio Institucional de la UAM
collection Biblos-e Archivo. Repositorio Institucional de la UAM
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,811543

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