Dye degradation mechanisms using nitrogen doped and copper(II) phthalocyanine tetracarboxylate sensitized titanate and TiO2 nanotubes

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dc.creatorJuliana dos Santos de Souza
dc.creatorMauricio Veloso Brant Pinheiro
dc.creatorKlaus Wilhelm Heinrich Krambrock
dc.creatorWendel Andrade Alves
dc.date.accessioned2022-11-01T16:20:17Z
dc.date.accessioned2025-09-08T22:50:15Z
dc.date.available2022-11-01T16:20:17Z
dc.date.issued2016-05-10
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.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/10.1021/acs.jpcc.6b02919
dc.identifier.issn19327455
dc.identifier.urihttps://hdl.handle.net/1843/46814
dc.languageeng
dc.publisherUniversidade Federal de Minas Gerais
dc.relation.ispartofJournal of Physical Chemistry C
dc.rightsAcesso Restrito
dc.subjectCatalisadores
dc.subjectRadiação eletromagnética
dc.subjectÓxidos
dc.subject.otherCatalysts
dc.subject.otherDegradation
dc.subject.otherElectromagnetic radiation
dc.subject.otherOxides
dc.titleDye degradation mechanisms using nitrogen doped and copper(II) phthalocyanine tetracarboxylate sensitized titanate and TiO2 nanotubes
dc.typeArtigo de periódico
local.citation.epage11571
local.citation.issue21
local.citation.spage11561
local.citation.volume120
local.description.resumoSeveral strategies have been used to increase the photocatalytic activity of titanate and titanium dioxide nanotubes (TiNTs and TiO2NTs) using visible light, including doping with nitrogen and sensitization with copper phthalocyanine. Additionally, TiNTs and TiO2NTs have been successfully used in catalysis mediated by hydrogen peroxide. In this work, we describe the synthesis of nitrogen doped and copper phthalocyanine sensitized TiNTs and TiO2NTs for photodegradation using visible light and for catalysis mediated by hydrogen peroxide. The combined effect of nitrogen doping and copper phthalocyanine sensitization promoted a quenching of the photocatalytic activity of the catalysts. However, the sensitization increased the catalytic effect of the catalysts compared with the nonsensitized species. These results suggest that the generation of the reactive species responsible for the dye degradation happens through different mechanisms, and the topic is discussed in this article.
local.identifier.orcidhttps://orcid.org/0000-0001-5722-6260
local.identifier.orcidhttps://orcid.org/0000-0002-7562-0285
local.identifier.orcidhttps://orcid.org/0000-0002-8394-2751
local.publisher.countryBrasil
local.publisher.departmentICX - DEPARTAMENTO DE FÍSICA
local.publisher.initialsUFMG
local.url.externahttps://pubs.acs.org/doi/full/10.1021/acs.jpcc.6b02919

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