Long-and short-range structure of SnO2 nanoparticles: Synthesis and photo(electro)catalytic activity

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Autor(es): dc.contributorUniversidade Federal de São Carlos (UFSCar)-
Autor(es): dc.contributorUniversidade Federal de Uberlândia (UFU)-
Autor(es): dc.contributorESRF-
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorEmpresa Brasileira de Pesquisa Agropecuária (EMBRAPA)-
Autor(es): dc.creatorda Silva, Gelson T.S.T.-
Autor(es): dc.creatorLopes, Osmando F.-
Autor(es): dc.creatorCatto, Ariadne C.-
Autor(es): dc.creatorPatrocinio, Antonio Otavio T.-
Autor(es): dc.creatorRodrigues, João E.F.S.-
Autor(es): dc.creatorMesquita, Alexandre-
Autor(es): dc.creatorRibeiro, Caue-
Autor(es): dc.creatorAvansi, Waldir-
Autor(es): dc.creatorda Silva, Luís F.-
Data de aceite: dc.date.accessioned2025-08-21T23:13:29Z-
Data de disponibilização: dc.date.available2025-08-21T23:13:29Z-
Data de envio: dc.date.issued2023-07-29-
Data de envio: dc.date.issued2023-07-29-
Data de envio: dc.date.issued2023-09-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1016/j.matchemphys.2023.127989-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/247500-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/247500-
Descrição: dc.descriptionWe report herein a detailed study on the influence of hydrothermal treatment temperature on both long- and short-range structures of SnO2 nanoparticles (NPs) applied as photocatalysts for the discoloration of organic pollutants and as photoanodes for water splitting. Synchrotron X-ray diffraction and X-ray absorption near-edge spectroscopy measurements confirmed the enhancement of the structural order of SnO2 NPs as a function of hydrothermal temperature. Fourier transform infrared spectroscopy revealed that the hydrothermal treatment increased the amount of hydroxyl groups on the SnO2 NPs surface. Regarding the photocatalytic activity, the NPs were able to promote the discoloration of different dyes that can act as potential organic pollutants. The photoelectrocatalytic performance of the samples depended on the hydrothermal treatment temperature, with the degree of crystallinity and surface hydroxyl groups playing a significant role in their performance as photoanodes. In particular, the NPs treated at a higher temperature presented a better degree of crystallinity, in addition to many hydroxyls on their surface, leading to increased mobility of the photogenerated charge carriers and improving the interaction between the molecules degraded and the material surface. The results demonstrated that the hydroxyls adsorbed on the SnO2 surface favor the formation of hydroxyl radicals, a species that indirectly participate in the photocatalytic oxidation of rhodamine B dye. The photoelectrocatalytic tests showed that the NPs treated at 200 °C increased oxygen evolution reaction performance.-
Descrição: dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)-
Descrição: dc.descriptionFundação de Amparo à Pesquisa do Estado de Minas Gerais (FAPEMIG)-
Descrição: dc.descriptionInterdisciplinary Laboratory of Electrochemistry and Ceramics Department of Chemistry Federal University of Sao Carlos, São Carlos-
Descrição: dc.descriptionCDMF Federal University of São Carlos, São Carlos-
Descrição: dc.descriptionLaboratory of Photochemistry and Materials Science Institute of Chemistry Federal University of Uberlândia, Uberlândia, Minas Gerais-
Descrição: dc.descriptionEuropean Synchrotron Radiation Facility ESRF, 71 Avenue des Martyrs-
Descrição: dc.descriptionInstitute of Geosciences and Exact Sciences São Paulo State University, Rio Claro-
Descrição: dc.descriptionNanotechnology National Laboratory for Agriculture EMBRAPA Instrumentation, São Carlos-
Descrição: dc.descriptionLaboratory of Nanostructured Multifunctional Materials Federal University of São Carlos, São Carlos-
Descrição: dc.descriptionInstitute of Geosciences and Exact Sciences São Paulo State University, Rio Claro-
Descrição: dc.descriptionFAPESP: 2013/07296-2-
Descrição: dc.descriptionFAPESP: 2018/18208-0-
Descrição: dc.descriptionFAPESP: 2021/07214-4-
Descrição: dc.descriptionFAPESP: 2021/12684-8-
Descrição: dc.descriptionFAPESP: 2022/02927-3-
Descrição: dc.descriptionFAPESP: 2022/10255-5-
Descrição: dc.descriptionFAPEMIG: APQ-00282-21-
Idioma: dc.languageen-
Relação: dc.relationMaterials Chemistry and Physics-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectNanoparticles-
Palavras-chave: dc.subjectPhotoelectrocalysis-
Palavras-chave: dc.subjectSynchrotron XRD-
Palavras-chave: dc.subjectTin dioxide-
Palavras-chave: dc.subjectWater splitting-
Palavras-chave: dc.subjectWater treatment-
Palavras-chave: dc.subjectXANES-
Título: dc.titleLong-and short-range structure of SnO2 nanoparticles: Synthesis and photo(electro)catalytic activity-
Tipo de arquivo: dc.typelivro digital-
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