Boosted Photocatalytic Activities of Ag2CrO4 through Eu3+-Doping Process
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INVESTIGACIONMetadatos
Título
Boosted Photocatalytic Activities of Ag2CrO4 through Eu3+-Doping ProcessAutoría
Fecha de publicación
2024-08-20Editor
American Chemical SocietyISSN
2470-1343Cita bibliográfica
Souza, J. C.; Lemos, S. C. S.; Assis, M.; Fernandes, C. H. M.; Ribeiro, L. K.; Núñez-de la Rosa, Y.; Teodoro, M. D.; Gracia, L.; Andrés, J.; Mascaro, L. H.; Longo, E. Boosted Photocatalytic Activities of Ag2CrO4 through Eu3+-Doping Process. ACS Omega 2024, 9, 33, 35537-35547, DOI: 10.1021/acsomega.4c02683Tipo de documento
info:eu-repo/semantics/articleVersión de la editorial
https://pubs.acs.org/doi/full/10.1021/acsomega.4c02683Versión
info:eu-repo/semantics/publishedVersionPalabras clave / Materias
Resumen
Ag2CrO4 is a representative member of a family of Ag-containing semiconductors with highly efficient visible-light-driven responsive photocatalysts. The doping process with Eu3+ is known to effectively tune their ... [+]
Ag2CrO4 is a representative member of a family of Ag-containing semiconductors with highly efficient visible-light-driven responsive photocatalysts. The doping process with Eu3+ is known to effectively tune their properties, thus opening opportunities for investigations and application. Here, we report the enhancement of the photocatalytic activity and stability of Ag2CrO4 by introducing Eu3+cations. The structural, electronic, and photocatalytic properties of Ag2CrO4:xEu3+ (x = 0, 0.25, 0.5, 1%) synthesized using the coprecipitation method were systematically discussed, and their photodegradation activity against rhodamine B (RhB), ciprofloxacin hydrochloride monohydrate (CIP), and 4-nitrophenol (4-NP) was evaluated. Structural analyses reveal a short-range symmetry breaking in the Ag2CrO4 lattice after Eu3+ doping, influencing the material morphology, size, and electronic properties. XPS analysis confirmed the incorporation of Eu3+ and alteration of the surface oxygen species. Furthermore, photoluminescence measurements indicated that the doping process was responsible for reducing recombination processes. The sample doped with 0.25% Eu3+ exhibited superior photocatalytic performance compared to pure Ag2CrO4. Scavenger experiments revealed an increase in the degradation via •OH reactive species for the sample doped with 0.25% Eu3+. DFT calculations provided atomic-scale insights into the structural and electronic changes induced by the Eu3+ doping process in the Ag2CrO4 host lattice. This study confirms that Eu3+ doping alters the band structure, enabling different degradation paths and boosting the separation/transfer of photogenerated charges, thereby improving the overall photocatalytic performance. [-]
Publicado en
ACS Omega, 2024, vol. 9, no 33Entidad financiadora
Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP) | Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) | Generalitat Valenciana | European Union | Financier of Studies and Projects (FINEP) | Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPQ) | Universitat Jaume I
Código del proyecto o subvención
FAPESP-2013/07296-2 | 2022/10340-2 | PNPD-2019/88887.469176 | CIAICO/2021/122 | FAPESP-2023/12399-7 | UP2021-021 | 01.22.0179.00 | 311769/2022-5 | 2023/12399-7 | POSDOC/2021/18 | UJI-B2022-56
Derechos de acceso
Copyright © 2024 The Authors. Published by American Chemical Society
info:eu-repo/semantics/openAccess
info:eu-repo/semantics/openAccess
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