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Use este identificador para citar o ir al link de este elemento: http://hdl.handle.net/1843/80372
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Campo DCValorIdioma
dc.creatorDiogo Augusto Fonseca Gonçalvespt_BR
dc.creatorMauricio Veloso Brant Pinheiropt_BR
dc.creatorKlaus Wilhelm Heinrich Krambrockpt_BR
dc.creatorRodrigo Ribeiro Resendept_BR
dc.creatorBreno Rodrigues Lamaghere Galvãopt_BR
dc.creatorEudes Lorençonpt_BR
dc.date.accessioned2025-02-24T18:54:43Z-
dc.date.available2025-02-24T18:54:43Z-
dc.date.issued2022-
dc.citation.volume76pt_BR
dc.citation.issue6pt_BR
dc.citation.spage3401pt_BR
dc.citation.epage3412pt_BR
dc.identifier.doihttps://doi.org/10.1007/s11696-022-02113-3pt_BR
dc.identifier.issn2585-7290pt_BR
dc.identifier.urihttp://hdl.handle.net/1843/80372-
dc.description.resumoMo-doped graphitic carbon nitride (Mo/g-C3N4) was successfully prepared by thermal condensation of a Mo/melamine precursor in a semi-closed alumina crucible at 550 °C without atmosphere. Thermogravimetric analysis (TGA) was used to evaluate the polymerization route of the precursor, and theoretical and experimental investigations revealed that the Mo species were likely dispersed and anchored to the pyridinic groups of g-C3N4. As a result, the obtained Mo/g-C3N4 displayed exceptional catalytic activity in the oxidative desulfurization of dibenzothiophene (DBT) with H2O2. The effects of catalyst dosage, O/S ratio, and temperature on the catalytic properties of Mo/g-C3N4 were investigated. The kinetic studies revealed a pseudo-first-order kinetic process for DBT oxidation with an apparent activation energy of 43.6 kJ mol−1. Experimental and theoretical evaluation of the Mo/g-C3N4 stability suggests that catalytically active Mo species are progressively leached from the g-C3N4 structure. The decrease in the Mo–N bond order after forming reactive peroxo-Mo(VI) groups was associated with catalyst deactivation.pt_BR
dc.description.sponsorshipCNPq - Conselho Nacional de Desenvolvimento Científico e Tecnológicopt_BR
dc.description.sponsorshipFAPEMIG - Fundação de Amparo à Pesquisa do Estado de Minas Geraispt_BR
dc.description.sponsorshipCAPES - Coordenação de Aperfeiçoamento de Pessoal de Nível Superiorpt_BR
dc.languageengpt_BR
dc.publisherUniversidade Federal de Minas Geraispt_BR
dc.publisher.countryBrasilpt_BR
dc.publisher.departmentICB - DEPARTAMENTO DE BIOQUÍMICA E IMUNOLOGIApt_BR
dc.publisher.departmentICX - DEPARTAMENTO DE FÍSICApt_BR
dc.publisher.initialsUFMGpt_BR
dc.relation.ispartofChemical Paperspt_BR
dc.rightsAcesso Restritopt_BR
dc.subjectGraphitic carbon nitridept_BR
dc.subjectOxidative desulfurizationpt_BR
dc.subjectDibenzothiophenept_BR
dc.subject.otherNitreto de carbonopt_BR
dc.subject.otherDessulfuraçãopt_BR
dc.titleOxidative desulfurization of dibenzothiophene over highly dispersed Mo-doped graphitic carbon nitridept_BR
dc.typeArtigo de Periódicopt_BR
dc.url.externahttps://link.springer.com/article/10.1007/s11696-022-02113-3pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0001-5722-6260pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0002-7562-0285pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0002-2003-0739pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0002-4184-2437pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0003-2274-4572pt_BR
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