Anatase-rutile-brookite: Structural and photocatalytic properties of TiO2 modified with different boron concentrations

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Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorUniversidade Federal de São Carlos (UFSCar)-
Autor(es): dc.contributorUniversidade de São Paulo (USP)-
Autor(es): dc.contributorFederal University of Alfenas-
Autor(es): dc.creatorMoreira, Ailton.J.-
Autor(es): dc.creatorde Araújo, Kelvin C.-
Autor(es): dc.creatorMarques, Gleison N.-
Autor(es): dc.creatorNobrega, Eryka T.D.-
Autor(es): dc.creatorSantos, Hugo L.S.-
Autor(es): dc.creatorMascaro, Lucia H.-
Autor(es): dc.creatorOnofre, Yina J.-
Autor(es): dc.creatorGaleti, Helder V.A.-
Autor(es): dc.creatorGobato, Yara Galvão-
Autor(es): dc.creatorMastelaro, Valmor R.-
Autor(es): dc.creatorFreschi, Gian P.G.-
Autor(es): dc.creatorGodoy, Marcio P.F.-
Autor(es): dc.creatorPereira, Ernesto C.-
Data de aceite: dc.date.accessioned2025-08-21T16:10:33Z-
Data de disponibilização: dc.date.available2025-08-21T16:10:33Z-
Data de envio: dc.date.issued2025-04-29-
Data de envio: dc.date.issued2024-10-31-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1016/j.materresbull.2024.112973-
Fonte completa do material: dc.identifierhttps://hdl.handle.net/11449/302759-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/302759-
Descrição: dc.descriptionThis study prepared titanium dioxide nanostructures modified with different boron (B-modified TiO2) concentrations. The percentage of the anatase was > 98 % and the rutile was < 1.1 % for pure samples or low boron concentrations. The brookite grew from 0.5 to 1.79 % with increasing boron concentration. The nanostructures with a diameter ≤ 25 nm and Egap ≤ 3.07 eV efficiently degraded 100 % of RhB up to 120 min or 45 min using UV-A or UV-C light, respectively. The most efficient material was used for the fluoxetine (FLX) photocatalysis. 3D spectrofluorimetry coupled with parallel factor analysis (PARAFAC) was applied to quantify FLX and the transformation product (TP). Therefore, LC-MS-Q-TOF analyses identified other TP and proposed a degradation mechanism. In general, our results show that modifying TiO2 with a low boron concentration is an excellent way to improve the photoactivity of this material for the degradation of organic contaminants.-
Descrição: dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)-
Descrição: dc.descriptionInstitute of Chemistry São Paulo State University (UNESP), SP-
Descrição: dc.descriptionDepartment of Chemistry Federal University of São Carlos, SP-
Descrição: dc.descriptionDepartment of Electrical Engineering Federal University of São Carlos, SP-
Descrição: dc.descriptionDepartment of Physics Federal University of São Carlos, SP-
Descrição: dc.descriptionSão Carlos Institute of Physics University of São Paulo, SP-
Descrição: dc.descriptionTechnology and Science Institute Federal University of Alfenas, MG-
Descrição: dc.descriptionInstitute of Chemistry São Paulo State University (UNESP), SP-
Descrição: dc.descriptionFAPESP: 2013/07296–2-
Descrição: dc.descriptionFAPESP: 2017/11986–5-
Descrição: dc.descriptionFAPESP: 2019/26860–2-
Descrição: dc.descriptionFAPESP: 2022/05254–0-
Descrição: dc.descriptionFAPESP: 2022/06219–3-
Idioma: dc.languageen-
Relação: dc.relationMaterials Research Bulletin-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectActive polymorphs-
Palavras-chave: dc.subjectDegradation mechanism-
Palavras-chave: dc.subjectPharmaceuticals-
Palavras-chave: dc.subjectPhotocatalysis-
Palavras-chave: dc.subjectSynthetic methods-
Título: dc.titleAnatase-rutile-brookite: Structural and photocatalytic properties of TiO2 modified with different boron concentrations-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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