Use este identificador para citar ou linkar para este item: http://repositorio.ufla.br/jspui/handle/1/49605
Registro completo de metadados
Campo DCValorIdioma
dc.creatorPereira, Leydiane de O.-
dc.creatorMoura, Stéfany G. de-
dc.creatorCoelho, Gesiane C. M.-
dc.creatorOliveira, Luiz C.vA.-
dc.creatorAlmeida, Eduardo T. de-
dc.creatorMagalhães, Fabiano-
dc.date.accessioned2022-03-29T16:46:07Z-
dc.date.available2022-03-29T16:46:07Z-
dc.date.issued2019-02-
dc.identifier.citationPEREIRA, L. de O. et al. Magnetic photocatalysts from industrial residues and TiO2 for the degradation of organic contaminants. Journal of Environmental Chemical Engineering, [S.l.], v. 7, n. 1, p. 1-12, Feb. 2019. DOI: 10.1016/j.jece.2018.102826.pt_BR
dc.identifier.urihttps://www.sciencedirect.com/science/article/pii/S2213343718307498pt_BR
dc.identifier.urihttp://repositorio.ufla.br/jspui/handle/1/49605-
dc.description.abstractIn this study, magnetic photocatalysts were prepared with different levels of TiO2 supported on tar pitch and red mud (RM) (40, 60, 80Ti/C/RM), which were used as carbon (C) and iron sources, respectively. The characterization by TEM, SEM and energy dispersive X-ray spectrometry showed that the RM particles are distributed in the bulk and on the surface of the carbonaceous matrix, forming the C/RM composite. These characterizations also confirmed the presence of TiO2 particles agglomerated on the photocatalysts surface. XDR results showed that the goethite and hematite in the RM was reduced to Fe3O4 and elemental analysis and Raman spectroscopy confirmed the carbon matrix. The obtained photocatalysts showed high efficiency to discolor the remazol black B dye (RB5). The 60 and 80Ti/C/RM photocatalysts decolorized 99% of the RB5 dye in reaction with solar radiation, while sample 40Ti/C/RM discolored 83%. The reactions performed with UV light showed that the 40, 60 and 80Ti/C/RM photocatalysts, decolorized 36, 60, and 71% of the RB5 and reduce 13, 34 and 52% of total organic carbon (TOC), respectively. Magnetic separation was preceded and the characterizations of the magnetic (MF) and non-magnetic fraction (NMF) confirmed that about 25% of TiO2 did not fix in the 60Ti/C/RM photocatalyst. MF and NMF decolorized 70 and 80% of the RB5, respectively, at the photocatalytic reaction (UV light). Sedimentation kinetics showed that photocatalysts are separated faster from aqueous environment than pure TiO2.pt_BR
dc.languageen_USpt_BR
dc.publisherElsevierpt_BR
dc.rightsrestrictAccesspt_BR
dc.sourceJournal of Environmental Chemical Engineeringpt_BR
dc.subjectPhotocatalysispt_BR
dc.subjectRed mudpt_BR
dc.subjectTar pitchpt_BR
dc.subjectTitanium oxidept_BR
dc.subjectDegradationpt_BR
dc.titleMagnetic photocatalysts from industrial residues and TiO2 for the degradation of organic contaminantspt_BR
dc.typeArtigopt_BR
Aparece nas coleções:DQI - Artigos publicados em periódicos

Arquivos associados a este item:
Não existem arquivos associados a este item.


Os itens no repositório estão protegidos por copyright, com todos os direitos reservados, salvo quando é indicado o contrário.