Cu-doped NaNbO3 nanorods: Enhanced photocatalytic activity for RhB dye removal and antibacterial activity against E. coli

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorFederal University of Pelotas-
Autor(es): dc.contributorSão Carlos Federal University-
Autor(es): dc.contributorFederal University of Pampa-
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.creatorFernandes, Daiane-
Autor(es): dc.creatorCarvalho, Ramon D.-
Autor(es): dc.creatorTrassante, Carla M.-
Autor(es): dc.creatorDias, Vagner da S.-
Autor(es): dc.creatorMelo, Luize G.B.de-
Autor(es): dc.creatorRaubach, Cristiane W.-
Autor(es): dc.creatorMoreira, Mario L.-
Autor(es): dc.creatorJardim, Pedro L.G.-
Autor(es): dc.creatorFerrer, Mateus M.-
Autor(es): dc.creatorMoreira, Eduardo C.-
Autor(es): dc.creatorGraeff, Carlos Frederico de O.-
Autor(es): dc.creatorLund, Rafael G.-
Autor(es): dc.creatorVaucher, Rodrigo de A.-
Autor(es): dc.creatorCava, Sergio da S.-
Data de aceite: dc.date.accessioned2025-08-21T16:46:37Z-
Data de disponibilização: dc.date.available2025-08-21T16:46:37Z-
Data de envio: dc.date.issued2025-04-29-
Data de envio: dc.date.issued2024-12-14-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1016/j.ceramint.2024.10.311-
Fonte completa do material: dc.identifierhttps://hdl.handle.net/11449/305789-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/305789-
Descrição: dc.descriptionSodium niobate (NaNbO3) nanorods with Cu (0.00, 0.01, 0.02 and 0.04 mmol) insertion were prepared by the microwave-assisted hydrothermal method and the photocatalytic and antibacterial activity was explored for the first time. X-ray diffraction confirms the coexistence of two orthorhombic phases (P21ma and Pbma) for all samples, with the percentage of each phase being strongly influenced by doping. The micrographs reveal that doping did not alter the shape or size of the grains (nanorods, with a diameter of ∼200 nm and a length of tens micrometers). The samples of pure NaNbO3 and those with 0.01 and 0.02 mmol of Cu showed an average band gap value of 3.08 eV. However, the sample containing 0.04 mmol of Cu exhibited a slight redshift. The photocatalytic activity of the samples was assessed by the removal of Rhodamine B dye (RhB), under ultraviolet light. All doped samples exhibited superior performance, with the sample containing 0.02 mmol of Cu showing the best photocatalytic activity, achieving 100 % RhB removal in 50 min. This was attributed to a lower rate of recombination of photogenerated charges, as evaluated through photoluminescence analysis. Additionally, the photocatalyst demonstrated excellent recyclability over three cycles. Pure NaNbO3 nanorods showed no antibacterial activity, but doping with 0.04 mmol of Cu reduced the growth of Escherichia coli.-
Descrição: dc.descriptionFundação de Amparo à Pesquisa do Estado do Rio Grande do Sul-
Descrição: dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)-
Descrição: dc.descriptionPost-Graduate Program in Materials Science and Engineering Federal University of Pelotas, RS-
Descrição: dc.descriptionPost-Graduate Program in Physics Federal University of Pelotas, RS-
Descrição: dc.descriptionCenter for the Development of Funcional Materials (CDMF) São Carlos Federal University, SP-
Descrição: dc.descriptionPost-Graduate Program in Microbiology and Parasitology Federal University of Pelotas, RS-
Descrição: dc.descriptionSpectroscopy Laboratory Federal University of Pampa, RS-
Descrição: dc.descriptionPost-Graduate Program in Materials Science and Technology São Paulo State University, SP-
Descrição: dc.descriptionDepartment of Physics São Paulo State University, SP-
Descrição: dc.descriptionSchool of Dentistry Federal University of Pelotas, RS-
Descrição: dc.descriptionPost-Graduate Program in Materials Science and Technology São Paulo State University, SP-
Descrição: dc.descriptionDepartment of Physics São Paulo State University, SP-
Descrição: dc.descriptionFundação de Amparo à Pesquisa do Estado do Rio Grande do Sul: 17/2551-0000889-8-
Descrição: dc.descriptionFundação de Amparo à Pesquisa do Estado do Rio Grande do Sul: 19/2551-0001974-2-
Descrição: dc.descriptionFundação de Amparo à Pesquisa do Estado do Rio Grande do Sul: 23/2551-0000511-5-
Descrição: dc.descriptionCNPq: 406160/2023-6-
Descrição: dc.descriptionCNPq: 406193/2022-3 INCT-NAMITEC-
Descrição: dc.descriptionCNPq: 406311/2023-4-
Descrição: dc.descriptionCNPq: 409092/2022-3-
Formato: dc.format54878-54884-
Idioma: dc.languageen-
Relação: dc.relationCeramics International-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectAntibacterial activity-
Palavras-chave: dc.subjectCu-doping-
Palavras-chave: dc.subjectNanorods-
Palavras-chave: dc.subjectPhotocatalysis-
Palavras-chave: dc.subjectSodium niobate-
Título: dc.titleCu-doped NaNbO3 nanorods: Enhanced photocatalytic activity for RhB dye removal and antibacterial activity against E. coli-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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