Amoxicillin photodegradation under visible light catalyzed by metal-free carbon nitride: an investigation of the influence of the structural defects

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dc.creatorIngrid Fernandes Silva
dc.creatorHumberto Osório Stumpf
dc.creatorIvo Freitas Teixeira
dc.creatorRegiane Débora Fernandes Rios
dc.creatorGustavo Morari do Nascimento
dc.creatorIldefonso Binatti
dc.creatorHenrique Fernandes Vieira Victoria
dc.creatorKlaus Wilhelm Heinrich Krambrock
dc.creatorLuiz Alberto Cury
dc.creatorAna Paula de Carvalho Teixeira
dc.date.accessioned2025-02-23T16:30:35Z
dc.date.accessioned2025-09-08T23:01:05Z
dc.date.available2025-02-23T16:30:35Z
dc.date.issued2021
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.sponsorshipCAPES - Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
dc.description.sponsorshipINCT – Instituto nacional de ciência e tecnologia (Antigo Instituto do Milênio)
dc.description.sponsorshipFAPESP - Fundação de Amparo à Pesquisa do Estado de São Paulo
dc.identifier.doihttps://doi.org/10.1016/j.jhazmat.2020.123713
dc.identifier.issn0304-3894
dc.identifier.urihttps://hdl.handle.net/1843/80327
dc.languageeng
dc.publisherUniversidade Federal de Minas Gerais
dc.relation.ispartofJournal of Hazardous Materials
dc.rightsAcesso Restrito
dc.subjectNitretos
dc.subjectCarbono
dc.subjectFotocatálise
dc.subject.otherCarbon nitrides
dc.subject.otherMetal-free
dc.subject.otherAmoxicillin
dc.subject.otherVisible region
dc.subject.otherPhotocatalysis
dc.titleAmoxicillin photodegradation under visible light catalyzed by metal-free carbon nitride: an investigation of the influence of the structural defects
dc.typeArtigo de periódico
local.citation.epage10
local.citation.spage1
local.citation.volume401
local.description.resumoHerein, the structural defects of metal-free polymeric carbon nitrides were controlled by making use of different precursors in their syntheses, i.e. melamine (CN-M) and thiourea (CN-T), as well as a 1:1 mixture of them (CN-1M:1 T). By controlling the structural defects, the electronic, morphological and chemical properties were modified. Additionally, the activities of synthesized PCNs were evaluated for amoxicillin photodegradation under visible light irradiation (16 mW cm–2). The results of photocatalytic tests showed that CN-T material has better efficiency (100 % removal within 48 h), which is directly related to the greater number of defects present in its structure with consequent improvement of electron-hole pairs separation efficiency. The CN-T material showed excellent stability with only 13 % decrease in its photocatalytic activity after the third cycle. A mechanism for amoxicillin degradation by CN-T was proposed based on the ESI-MS and the in situ EPR allied with spin trapping method investigations.
local.identifier.orcidhttps://orcid.org/0000-0002-4356-061X
local.identifier.orcidhttps://orcid.org/0000-0002-8461-1815
local.identifier.orcidhttps://orcid.org/0000-0002-0831-4317
local.identifier.orcidhttps://orcid.org/0000-0002-0454-0026
local.identifier.orcidhttps://orcid.org/0000-0002-4846-2189
local.identifier.orcidhttps://orcid.org/0000-0002-7562-0285
local.identifier.orcidhttps://orcid.org/0000-0002-0763-4431
local.identifier.orcidhttps://orcid.org/0000-0002-4985-7502
local.publisher.countryBrasil
local.publisher.departmentICX - DEPARTAMENTO DE FÍSICA
local.publisher.departmentICX - DEPARTAMENTO DE QUÍMICA
local.publisher.initialsUFMG
local.url.externahttps://www.sciencedirect.com/science/article/pii/S030438942031699X

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