Photovoltaic Electrochemically Driven Degradation of Calcon Dye with Simultaneous Green Hydrogen Production

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.contributorFederal University of Rio Grande do Norte-
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.creatorCâmara Cardozo, Jussara-
Autor(es): dc.creatorda Silva, Djalma R.-
Autor(es): dc.creatorMartínez-Huitle, Carlos A.-
Autor(es): dc.creatorQuiroz, Marco A.-
Autor(es): dc.creatorDos Santos, Elisama V.-
Data de aceite: dc.date.accessioned2025-08-21T21:25:19Z-
Data de disponibilização: dc.date.available2025-08-21T21:25:19Z-
Data de envio: dc.date.issued2023-07-29-
Data de envio: dc.date.issued2023-07-29-
Data de envio: dc.date.issued2022-10-31-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.3390/ma15217445-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/246297-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/246297-
Descrição: dc.descriptionIn this study, for the first time, the production of green hydrogen gas (H2) in the cathodic compartment, in concomitance with the electrochemical oxidation (EO) of an aqueous solution containing Calcon dye at the anodic compartment, was studied in a PEM-type electrochemical cell driven by a photovoltaic (PV) energy source. EO of Calcon was carried out on a Nb/BDD anode at different current densities (7.5, 15 and 30 mA cm−2), while a stainless steel (SS) cathode was used for green H2 production. The results of the analysis by UV-vis spectroscopy and total organic carbon (TOC) clearly showed that the electrochemical oxidation (EO) of the Calcon dye after 180 min of electrolysis time by applying 30 mA cm−2 reached up to 90% of degradation and 57% of TOC removal. Meanwhile, under these experimental conditions, a green H2 production greater than 0.9 L was achieved, with a Faradaic efficiency of 98%. The hybrid electrolysis strategy is particularly attractive in the context of a circular economy, as these can be coupled with the use of more complex water matrices to transform organic depollution into an energy resource to produce H2 as a chemical energy carrier.-
Descrição: dc.descriptionInstitute of Chemistry Federal University of Rio Grande do Norte, Natal-
Descrição: dc.descriptionNational Institute for Alternative Technologies of Detection Toxicological Evaluation and Removal of Micropollutants and Radioactives (INCT-DATREM) UNESP-
Descrição: dc.descriptionSchool of Science and Technology Federal University of Rio Grande do Norte, Natal-
Descrição: dc.descriptionNational Institute for Alternative Technologies of Detection Toxicological Evaluation and Removal of Micropollutants and Radioactives (INCT-DATREM) UNESP-
Idioma: dc.languageen-
Relação: dc.relationMaterials-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectdye-
Palavras-chave: dc.subjectelectrochemical oxidation-
Palavras-chave: dc.subjectgreen hydrogen-
Palavras-chave: dc.subjectphotovoltaic array-
Palavras-chave: dc.subjectsimultaneous processes-
Título: dc.titlePhotovoltaic Electrochemically Driven Degradation of Calcon Dye with Simultaneous Green Hydrogen Production-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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