Zinc-substituted Ag2CrO4: A material with enhanced photocatalytic and biological activity
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Otros documentos de la autoría: Pinatti, Ivo M; Mora Tello, Ana Cristina; Barrios Trench, Aline; Foggi, Camila Cristina; Pereira, Paula; Teixeira, Mayara Mondego; jacomaci, natalia; Andres, Juan; Longo, Elson
Metadatos
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INVESTIGACIONMetadatos
Título
Zinc-substituted Ag2CrO4: A material with enhanced photocatalytic and biological activityAutoría
Fecha de publicación
2020-05-01Editor
ElsevierCita bibliográfica
PINATTI, Ivo M., et al. Zinc-substituted Ag2CrO4: A material with enhanced photocatalytic and biological activity. Journal of Alloys and Compounds, 2020, 155315.Tipo de documento
info:eu-repo/semantics/articleVersión de la editorial
https://www.sciencedirect.com/science/article/pii/S0925838820316789Versión
info:eu-repo/semantics/acceptedVersionPalabras clave / Materias
Resumen
In the past years, new environmentally-friendly photocatalysts have been reported, but the realization of efficient visible-light driven photocatalyst with highly active bactericidal and fungicidal activity is still ... [+]
In the past years, new environmentally-friendly photocatalysts have been reported, but the realization of efficient visible-light driven photocatalyst with highly active bactericidal and fungicidal activity is still challenging. This work is a joint experimental and theoretical study on the structural, electronic, and optical properties of Ag2CrO4:Zn2+ (ACOxZn, x = 1%, 2%, and 4%) solid solutions for photocatalytic, bactericidal, and fungicidal activity. For the first time, synthesis of these innovative and multifunctional materials were performed through the cation exchange of zinc and silver using a simple, fast, and cheap co-precipitation method. Powder X-ray diffraction measurements revealed the long range order of the materials. X-ray photoelectron spectroscopy provided information about the surface of the samples demonstrating that they were pure. The materials showed short-range order as verified by FT-Raman spectroscopy. Additionally, ultraviolet-visible diffuse reflectance spectra and photoluminescence spectroscopy were used to examine the electronic properties which corroborated with the increasing photocatalytic activity for the degradation of Rhodamine B and bactericidal activity against Staphylococcus aureus and Candida albicans. Field emission scanning electron microscopy images showed different types of particles with different facets and sizes. Theoretical results based on density functional theory calculations complement the experimental results to rationalize the effects of the incorporation of Zn cations in the ACO host lattice. [-]
Proyecto de investigación
CNPq (grant no.150937/2018-0) and FAPESP (grant no.13/07296-2) ; Universitat Jaume I (project UJI-B2016-25) ; Generalitat Valenciana (project Prometeo II/2014/022, ACOMP/2014/270, and ACOMP/2015/1202) ; Ministerio de Economía y Competitividad (Spain) (project CTQ2015-65207-P) ; Ministerio de Ciencia, Innovación y Universidades (Spain) (project PGC2018-094417-B-I00).Derechos de acceso
© 2020 Elsevier B.V. All rights reserved.
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info:eu-repo/semantics/openAccess
http://rightsstatements.org/vocab/InC/1.0/
info:eu-repo/semantics/openAccess
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