Fotocatalisadores heterogêneos avançados baseados em nióbio para remediação sustentável de sulfeto inorgânico.

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.creatorSilva, Iza Fonte Boa e-
Autor(es): dc.creatorAlmeida, Vitor F. de-
Autor(es): dc.creatorSilva, Fábio L. R.-
Autor(es): dc.creatorRosmaninho, Marcelo Gonçalves-
Autor(es): dc.creatorMoura, Flávia Cristina Camilo-
Data de aceite: dc.date.accessioned2025-08-21T16:00:11Z-
Data de disponibilização: dc.date.available2025-08-21T16:00:11Z-
Data de envio: dc.date.issued2025-03-21-
Data de envio: dc.date.issued2023-
Fonte completa do material: dc.identifierhttps://www.repositorio.ufop.br/handle/123456789/20007-
Fonte completa do material: dc.identifierhttps://doi.org/10.21577/1984-6835.20240002-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/capes/1029726-
Descrição: dc.descriptionThis study addresses the issue of inorganic sulfide, a corrosive and highly toxic substance widely found in industrial effluents, causing significant economic and environmental damage. We present a compelling, economically advantageous, and environmentally sustainable alternative to conventional approaches for removing this pollutant through heterogeneous photocatalysis with visible light irradiation. Three new photomaterials were developed through chemical modifications with cobalt species and coupling the coloured molecule methylene blue as a photosensitizer to the semiconductor- based Nb2O5. The synthesized photocatalysts exhibit remarkable energy absorption capabilities in the 2.1 and 2.6 eV range. Among them, the Nb(V)OCoO material deserves special attention for its ability to almost wholly photo-oxidize the target pollutant with a half-life time of 32 minutes, complying with stringent U.S. environmental standards of only 30 ppm remaining of HS- and S2-. Furthermore, this material demonstrates robustness by maintaining over 80% of its activity after five reuse cycles and significantly reducing the solution’s toxicity, producing fewer toxic species, such as SO3 2- and SO4 2-. This study offers a practical and sustainable solution for inorganic sulfide removal, representing notable advancements in environmental and industrial management, confirming the feasibility and potential of these photocatalysts as a promising alternative.-
Formato: dc.formatapplication/pdf-
Idioma: dc.languagept_BR-
Direitos: dc.rightsaberto-
Direitos: dc.rightsThis is an open-access article distributed under the terms of the Creative Commons Attribution License. Fonte: PDF do artigo.-
Palavras-chave: dc.subjectVisible light irradiation-
Palavras-chave: dc.subjectNiobium(V) oxide nanomaterials-
Palavras-chave: dc.subjectSustainable technology-
Palavras-chave: dc.subjectKinetic analysis-
Título: dc.titleFotocatalisadores heterogêneos avançados baseados em nióbio para remediação sustentável de sulfeto inorgânico.-
Título: dc.titleAdvanced heterogeneous photocatalysts for sustainable inorganic sulfide remediation.-
Aparece nas coleções:Repositório Institucional - UFOP

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