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Evaluating the photocatalytic potential of the lead-free double perovskite halide Cs2AgBiBr6 for rhodamine-B degradation

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dc.contributor.authorMartinelli, Brenda
dc.contributor.authorLaranjeira, José Artigas dos Santos [UNESP]
dc.contributor.authorÜcker, Cátia L.
dc.contributor.authorFabra, Giovanni M.N.
dc.contributor.authorRodrigues, João Elias F.S.
dc.contributor.authorSilva, Romualdo Santos
dc.contributor.authorAlonso, José A.
dc.contributor.authorSambrano, Julio Ricardo [UNESP]
dc.contributor.authorFerrer, Mateus M.
dc.date.accessioned2026-05-05T23:08:42Z
dc.date.issued2025-05-01
dc.description.abstractThe 21st-century challenge is to discover materials for energy and environmental recovery. Metal halide perovskites are ideal for photovoltaic and optoelectronic applications due to their tunable bandgap, high absorption, broad spectrum, and charge mobility. Improving their properties involves structural characterization to link composition, atomic organization, and performance. Correlating theoretical and experimental results is essential for optimizing their applications. This study examines Cs2AgBiBr6, synthesized mechanochemically, for rhodamine-B photodegradation. Its structure, determined by synchrotron X-ray diffraction and electron microscopy, confirms a double perovskite with the Fm 3 ̅ m space-group. UV-Vis spectroscopy reveals a 2.8 eV (X→L) indirect band gap transition. Cs2AgBiBr6 achieved a 100 % rhodamine-B degradation in 75 minutes, indicating high photocatalytic efficiency. This highlights Cs2AgBiBr6's versatility in photocatalytic and optoelectronic technologies.
dc.description.affiliationCCAF, PPGCEM/CDTec, Federal University of Pelotas, Pelotas, Rio Grande do Sul 96010-610, Brazil
dc.description.affiliationModeling and Molecular Simulation Group, São Paulo State University (UNESP), School of Sciences, Bauru, SP, Brazil
dc.description.affiliationEuropean Synchrotron Radiation Facility (ESRF), 71 Avenue des Martyrs, Grenoble 38000, France
dc.description.affiliationInstituto de Ciencia de Materiales de Madrid (ICMM), CSIC, Madrid E-28049, Spain
dc.description.affiliationUnespModeling and Molecular Simulation Group, São Paulo State University (UNESP), School of Sciences, Bauru, SP, Brazil
dc.identifierhttps://app.dimensions.ai/details/publication/pub.1185719215
dc.identifier.dimensionspub.1185719215
dc.identifier.doi10.1016/j.jacomc.2025.100064
dc.identifier.issn2950-2845
dc.identifier.orcid0000-0002-3696-646X
dc.identifier.orcid0000-0002-8878-887X
dc.identifier.orcid0009-0007-9753-7531
dc.identifier.orcid0000-0002-9220-5809
dc.identifier.orcid0000-0002-6749-5293
dc.identifier.orcid0000-0001-5329-1225
dc.identifier.orcid0000-0002-5217-7145
dc.identifier.orcid0000-0002-0484-0192
dc.identifier.urihttps://hdl.handle.net/11449/323290
dc.publisherElsevier
dc.relation.ispartofJournal of Alloys and Compounds Communications; v. 6; p. 100064
dc.rights.accessRightsAcesso restritopt
dc.rights.sourceRightsclosed
dc.sourceDimensions
dc.titleEvaluating the photocatalytic potential of the lead-free double perovskite halide Cs2AgBiBr6 for rhodamine-B degradation
dc.typeArtigopt
dspace.entity.typePublication
relation.isOrgUnitOfPublicationaef1f5df-a00f-45f4-b366-6926b097829b
relation.isOrgUnitOfPublication.latestForDiscoveryaef1f5df-a00f-45f4-b366-6926b097829b
unesp.campusUniversidade Estadual Paulista (UNESP), Faculdade de Ciências, Baurupt

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