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CeO2 Nanoparticle Morphologies and Their Corresponding Crystalline Planes for the Photocatalytic Degradation of Organic Pollutants

dc.contributor.authorAmoresi, Rafael A. C. [UNESP]
dc.contributor.authorOliveira, Regiane C. [UNESP]
dc.contributor.authorMarana, Naiara L. [UNESP]
dc.contributor.authorDe Almeida, Priscila B.
dc.contributor.authorPrata, Paloma S.
dc.contributor.authorZaghete, Maria A. [UNESP]
dc.contributor.authorLongo, Elson
dc.contributor.authorSambrano, Julio R. [UNESP]
dc.contributor.authorSimões, Alexandre Z. [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidade Federal de São Carlos (UFSCar)
dc.date.accessioned2020-12-12T02:29:15Z
dc.date.available2020-12-12T02:29:15Z
dc.date.issued2019-10-25
dc.description.abstractCurrently, numerous properties of semiconducting oxides are correlated to their morphological characteristics resulting from their exposed surfaces. In the present work, the relationship between the following morphologies rod, bean, hexagon, and rod/cube of CeO2 with the exposure of (111), (110), (100), and (311) surfaces and the main charge carriers generated by the photochemical processes was investigated. This was done in regard to the degradation of ciprofloxacin and rhodamine-B. The initial stages of the degradation of the two types of molecules were evaluated, allowing the determination of where the charge carriers generated in the semiconductor preferentially acted on the molecules. Therefore, the active species in each photocatalyst were identified by scavenger tests and correlated to the computational simulations using the density functional theory. Accordingly, the relationships between the morphology, surface exposure in the particles, surface defects, photochemically generated species, and preferential attack on the micropollutant molecule were shown. Specific surface area analyses demonstrate an effective relationship between photocatalytic activity and the exposed surface of the particle. This will allow rationalization of the relation between the catalytic and electronic properties of semiconductor surfaces.en
dc.description.affiliationFaculty of Engineering of Guaratinguetá São Paulo State University UNESP
dc.description.affiliationModeling and Molecular Simulations Group São Paulo State University UNESP
dc.description.affiliationInterdisciplinary Laboratory of Electrochemistry and Ceramics LIEC Department of Chemistry Universidade Federal de São Carlos UFSCAR
dc.description.affiliationUFSCar Department of Chemistry Universidade Federal de São Carlos UFSCAR
dc.description.affiliationInterdisciplinary Laboratory of Electrochemistry and Ceramics LIEC Chemistry Institute São Paulo State University UNESP
dc.description.affiliationUnespFaculty of Engineering of Guaratinguetá São Paulo State University UNESP
dc.description.affiliationUnespModeling and Molecular Simulations Group São Paulo State University UNESP
dc.description.affiliationUnespInterdisciplinary Laboratory of Electrochemistry and Ceramics LIEC Chemistry Institute São Paulo State University UNESP
dc.format.extent6513-6526
dc.identifierhttp://dx.doi.org/10.1021/acsanm.9b01452
dc.identifier.citationACS Applied Nano Materials, v. 2, n. 10, p. 6513-6526, 2019.
dc.identifier.doi10.1021/acsanm.9b01452
dc.identifier.issn2574-0970
dc.identifier.scopus2-s2.0-85074675237
dc.identifier.urihttp://hdl.handle.net/11449/201308
dc.language.isoeng
dc.relation.ispartofACS Applied Nano Materials
dc.sourceScopus
dc.subjectCeO2
dc.subjectCIP
dc.subjectDFT
dc.subjectscavengers
dc.subjectsurface
dc.titleCeO2 Nanoparticle Morphologies and Their Corresponding Crystalline Planes for the Photocatalytic Degradation of Organic Pollutantsen
dc.typeArtigo
dspace.entity.typePublication
unesp.author.orcid0000-0002-7523-6013[1]
unesp.author.orcid0000-0002-7332-8731 0000-0002-7332-8731[2]
unesp.author.orcid0000-0001-8062-7791[7]
unesp.author.orcid0000-0002-5217-7145[8]
unesp.departmentMateriais e Tecnologia - FEGpt

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