Experimental evaluation of the activity and selectivity of pure MnWO4 and doped with rare earth ions in the CO2 photoreduction process

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dc.creatorJúlia Caroline Peixoto
dc.creatorAndré Esteves Nogueira
dc.creatorAnderson Dias
dc.creatorJuliana Arriel Torres
dc.creatorJean Castro da Cruz
dc.creatorCaue Ribeiro de Oliveira
dc.creatorKisla Prislen Felix Siqueira
dc.date.accessioned2023-12-20T14:00:48Z
dc.date.accessioned2025-09-09T00:10:42Z
dc.date.available2023-12-20T14:00:48Z
dc.date.issued2022
dc.description.sponsorshipCNPq - Conselho Nacional de Desenvolvimento Científico e Tecnológico
dc.description.sponsorshipFAPEMIG - Fundação de Amparo à Pesquisa do Estado de Minas Gerais
dc.description.sponsorshipFAPESP - Fundação de Amparo à Pesquisa do Estado de São Paulo
dc.description.sponsorshipOutra Agência
dc.identifier.doihttps://doi.org/10.1016/j.materresbull.2022.111912
dc.identifier.issn0025-5408
dc.identifier.urihttps://hdl.handle.net/1843/62104
dc.languageeng
dc.publisherUniversidade Federal de Minas Gerais
dc.relation.ispartofMaterials Research Bulletin
dc.rightsAcesso Restrito
dc.subjectFotocatálise
dc.subjectManganes
dc.subjectSemicondutores - Dopagem
dc.subjectTerras raras
dc.subjectRaios X - Difração
dc.subjectRaman, Espectroscopia de
dc.subjectCromatografia de gás
dc.subjectCompostos de metais de terras raras
dc.subject.otherManganese tungstate
dc.subject.otherDoping
dc.subject.otherRare earth
dc.subject.otherCO2 photoreduction
dc.subject.otherSelectivity
dc.titleExperimental evaluation of the activity and selectivity of pure MnWO4 and doped with rare earth ions in the CO2 photoreduction process
dc.typeArtigo de periódico
local.citation.spage111912
local.citation.volume153
local.description.resumoThe reduction of CO2 to produce useful carbon compounds offers a way to manage the emissions from various industrial sectors. However, selecting efficient systems remain a crucial issue, especially considering the low selectivity of the photocatalysts traditionally used in CO2 photoreduction processes. Here we demonstrate that the modification of MnWO4 with rare earth ions (Europium and Terbium) synthesized by the coprecipitation method can tune the activity and selectivity of the products formed in the process of CO2 photoreduction under UV irradiation. The CO2 photoreduction assays indicated that the photocatalysts presented good activity, resulting in acetate, acetone, acetic acid, ethanol, methane, and methanol products. Doping provided selectivity near 100% for CO2 conversion to methanol and increased the capacity of C2 (e.g., ethanol) production, opening the way for a better understanding of the activity and selectivity of tungstates in the CO2 photoreduction process.
local.identifier.orcidhttps://orcid.org/0000-0002-3187-3408
local.identifier.orcidhttps://orcid.org/0000-0003-3320-7959
local.identifier.orcidhttps://orcid.org/0000-0001-7413-1087
local.identifier.orcidhttps://orcid.org/0000-0003-1164-8497
local.identifier.orcidhttps://orcid.org/0000-0001-9428-4304
local.identifier.orcidhttps://orcid.org/0000-0002-8908-6343
local.identifier.orcidhttps://orcid.org/0000-0002-6344-3103
local.publisher.countryBrasil
local.publisher.departmentICX - DEPARTAMENTO DE QUÍMICA
local.publisher.initialsUFMG
local.url.externahttps://www.sciencedirect.com/science/article/pii/S0025540822001842

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