Degradation of emerging contaminants using Co/Nb-modified SnO2 nanoparticles and produced with babassu mesocarp (Orbgnya Speciosa)

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Autor(es): dc.contributorFederal Institute of Maranhão-
Autor(es): dc.contributorUniversidade Federal de São Carlos (UFSCar)-
Autor(es): dc.contributorUniversidade de São Paulo (USP)-
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorCatholic University of Valencia San Vicente Mártir (UCV)-
Autor(es): dc.creatorLima, Juliana B.-
Autor(es): dc.creatorMarques, Gleison N.-
Autor(es): dc.creatorFerreira, Davi S.-
Autor(es): dc.creatorMoreira, Ailton.J.-
Autor(es): dc.creatorAssis, Marcelo-
Autor(es): dc.creatorLongo, Elson-
Autor(es): dc.creatorBernardi, Maria Inês B.-
Autor(es): dc.creatorRangel, José H.G.-
Autor(es): dc.creatorAzevedo, Emilio-
Autor(es): dc.creatorMascaro, Lucia H.-
Autor(es): dc.creatorOliveira, Marcelo M.-
Data de aceite: dc.date.accessioned2025-08-21T21:12:01Z-
Data de disponibilização: dc.date.available2025-08-21T21:12:01Z-
Data de envio: dc.date.issued2025-04-29-
Data de envio: dc.date.issued2025-04-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1016/j.jece.2025.115941-
Fonte completa do material: dc.identifierhttps://hdl.handle.net/11449/298796-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/298796-
Descrição: dc.descriptionIn this work, pure SnO2 nanoparticles (SnO2 NPs), doped and co-doped with Co2 + and Nb5+ (0.05 and 0.1 mol), were prepared using babassu mesocarp (Orbgnya Speciosa) extract as a natural polymerizing agent and microwave-assisted hydrothermal treatment. X-ray diffraction analysis (XRD) showed that the crystallinity of the NPs increases by more than 20 % in the presence of babassu mesocarp, and the particle size decreases from 260.50 nm to 18.88 nm even with doping Co2+/Nb5+. The photocatalytic activity under UV irradiation for the degradation of the rhodamine b (RhB) dye showed that the NPs produced with the mesocarp achieved a degradation of up to 90 % and 97 % of RhB. The Co2+ doped samples were evaluated for their ability to degrade emerging contaminants such as Ofloxacin (OFX) and Diclofenac Sodium (DCF) in domestic wastewater. The assays showed that even in the presence of natural organic matter, the catalysts efficiently absorbed UV-C light to produce the oxidizing species consumed in the degradation of organic contaminants. This antibiotic showed high resistance to photolysis but degraded up to 94 %. The degradation of DCF is > 95 %. Thus, this study brings new approaches to producing efficient photocatalysts to degrade emerging contaminants in domestic wastewater.-
Descrição: dc.descriptionFundação de Amparo à Pesquisa e ao Desenvolvimento Científico e Tecnológico do Maranhão-
Descrição: dc.descriptionGraduate Program in Chemistry (DAQ/PPGQ/IFMA) Federal Institute of Maranhão Campus São Luís – Monte Castelo, Av. Getúlio Vargas 04, Maranhão-
Descrição: dc.descriptionDepartment of Chemistry – Federal University of São Carlos, SP-
Descrição: dc.descriptionPhysics Insitute of São Carlos University of São Paulo (IFSC-USP), SP-
Descrição: dc.descriptionSão Paulo State University (UNESP) Institute of Chemistry, SP-
Descrição: dc.descriptionBiomaterials and Bioengineering Lab Translational Research Centre San Alberto Magno Catholic University of Valencia San Vicente Mártir (UCV)-
Descrição: dc.descriptionSão Paulo State University (UNESP) Institute of Chemistry, SP-
Descrição: dc.descriptionFundação de Amparo à Pesquisa e ao Desenvolvimento Científico e Tecnológico do Maranhão: BM-01081/20-
Idioma: dc.languageen-
Relação: dc.relationJournal of Environmental Chemical Engineering-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectBabassu coconut mesocarp-
Palavras-chave: dc.subjectEmerging contaminants-
Palavras-chave: dc.subjectGreen synthesis-
Palavras-chave: dc.subjectPhotocatalysis-
Palavras-chave: dc.subjectTin dioxide-
Título: dc.titleDegradation of emerging contaminants using Co/Nb-modified SnO2 nanoparticles and produced with babassu mesocarp (Orbgnya Speciosa)-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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