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dc.contributor.author
Hojamberdiev, Mirabbos
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dc.contributor.author
Larralde, Ana Laura
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dc.contributor.author
Vargas Balda, Ronald Eduardo
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dc.contributor.author
Madriz Ruiz, Lorean Mercedes
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Yubuta, Kunio
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Sannegowda, Lokesh Koodlur
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Sadok, Ilona
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Krzyszczak Turczyn, Agnieszka
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Oleszczuk, Patryk
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Czech, Bożena
dc.date.available
2023-12-20T13:01:21Z
dc.date.issued
2023-09
dc.identifier.citation
Hojamberdiev, Mirabbos; Larralde, Ana Laura; Vargas Balda, Ronald Eduardo; Madriz Ruiz, Lorean Mercedes; Yubuta, Kunio; et al.; Unlocking the effect of Zn2+ on crystal structure, optical properties, and photocatalytic degradation of perfluoroalkyl substances (PFAS) of Bi2WO6; Royal Society of Chemistry; Environmental Science: Water Research and Technology; 9; 11; 9-2023; 2866-2879
dc.identifier.issn
2053-1400
dc.identifier.uri
http://hdl.handle.net/11336/220880
dc.description.abstract
Bismuth tungstate (Bi2WO6) with a layered structure and visible light response exhibits excellent photocatalytic activity. To enhance its photocatalytic activity for the degradation of perfluoroalkyl substances (PFAS), Zn2+ is partially substituted for Bi3+ in the Bi2WO6 lattice in this study. Particularly, the effect of Zn2+ content (0-22.5 at%) on the crystal structure, optical property, and photocatalytic activity for the photodegradation of PFAS of Bi2WO6 is investigated. According to the Le Bail fits, the unit-cell volume is slightly reduced from 487.7 Å3 to 480.8 Å3 by the partial substitution of smaller Zn2+ (0.74 Å for CN = 6) for larger Bi3+ (1.03 Å for CN = 6) in the Bi2WO6 crystal lattice, and the solubility of Zn2+ in the Bi2WO6 lattice is found to be below 17.5 at%. The partial substitution of Zn2+ influences the self-aggregation of nanoparticles, Ostwald ripening, and self-organization of nanoplates, resulting in different morphologies. Although the optical bandgap energy of Bi2WO6 is not significantly altered upon the partial substitution of Zn2+, the conduction and valence bands simultaneously shift upward. Among the Bi2−xZnxWO6+δ photocatalysts, 2.5 at% Zn2+-substituted Bi2WO6 exhibits larger water oxidation photocurrent density (0.316 mA cm−2 at 1.23 VRHE) and the highest photocatalytic activity for the photodegradation of PFHxA (k1 = 0.012 min−1). The trapping experiments confirm that the photo-excited holes (h+) and superoxide radicals (O2˙−) are the major reactive species involved in the photodegradation of PFHxA. Liquid chromatography quadrupole time-of-flight mass spectrometry (LC-QTOF/MS) reveals that decarboxylation and defluorination are the main possible routes for the photodegradation of PFHxA over Bi2−xZnxWO6+δ photocatalysts. Our findings suggest that the partial Zn2+-to-Bi2+ substitution can enhance the photocatalytic activity of Bi2WO6 for the degradation of PFAS.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Royal Society of Chemistry
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dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
BI2WO6
dc.subject
PFAS
dc.subject
ZINC
dc.subject
WATER PURIFICATION
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PHOTOCALAYSIS
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CRYSTAL STRUCTURE
dc.subject.classification
Ingeniería de los Materiales
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dc.subject.classification
Ingeniería de los Materiales
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dc.subject.classification
INGENIERÍAS Y TECNOLOGÍAS
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dc.title
Unlocking the effect of Zn2+ on crystal structure, optical properties, and photocatalytic degradation of perfluoroalkyl substances (PFAS) of Bi2WO6
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2023-12-19T12:16:33Z
dc.identifier.eissn
2053-1419
dc.journal.volume
9
dc.journal.number
11
dc.journal.pagination
2866-2879
dc.journal.pais
Reino Unido
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dc.journal.ciudad
Cambridge
dc.description.fil
Fil: Hojamberdiev, Mirabbos. Technishe Universitat Berlin; Alemania
dc.description.fil
Fil: Larralde, Ana Laura. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Instituto Nacional de Tecnologia Industrial. Gerencia Operativa de Desarrollo Tecnologico E Innovacion. Sub Gerencia Operativa de Energia y Movilidad.; Argentina
dc.description.fil
Fil: Vargas Balda, Ronald Eduardo. Universidad Nacional de San Martin. Instituto Tecnologico de Chascomus. - Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnologico Conicet - la Plata. Instituto Tecnologico de Chascomus.; Argentina
dc.description.fil
Fil: Madriz Ruiz, Lorean Mercedes. Universidad Nacional de San Martin. Instituto Tecnologico de Chascomus. - Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnologico Conicet - la Plata. Instituto Tecnologico de Chascomus.; Argentina
dc.description.fil
Fil: Yubuta, Kunio. Kyushu University; Japón
dc.description.fil
Fil: Sannegowda, Lokesh Koodlur. Vijayanagara Sri Krishnadevaraya University; India
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Fil: Sadok, Ilona. Medical University Of Lublin (medical University Of Lublin);
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Fil: Krzyszczak Turczyn, Agnieszka. Medical University Of Lublin (medical University Of Lublin); . Maria Curie-Skłodowska University in Lublin; Polonia
dc.description.fil
Fil: Oleszczuk, Patryk. Medical University Of Lublin (medical University Of Lublin); . Maria Curie-Skłodowska University in Lublin; Polonia
dc.description.fil
Fil: Czech, Bożena. Medical University Of Lublin (medical University Of Lublin); . Maria Curie-Skłodowska University in Lublin; Polonia
dc.journal.title
Environmental Science: Water Research and Technology
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://pubs.rsc.org/en/content/articlelanding/2023/EW/D3EW00430A
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1039/D3EW00430A
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