Highly ordered TiO2 nanotube arrays and photoelectrocatalytic oxidation of aromatic amine

dc.contributorUniversidade Estadual Paulista (UNESP)
dc.creatorCardoso, Juliano Carvalho
dc.creatorLizier, Thiago Mescoloto
dc.creatorZanoni, Maria Valnice Boldrin
dc.date2014-05-20T14:19:25Z
dc.date2016-10-25T17:41:04Z
dc.date2014-05-20T14:19:25Z
dc.date2016-10-25T17:41:04Z
dc.date2010-08-31
dc.date.accessioned2017-04-05T22:31:19Z
dc.date.available2017-04-05T22:31:19Z
dc.identifierApplied Catalysis B-environmental. Amsterdam: Elsevier B.V., v. 99, n. 1-2, p. 96-102, 2010.
dc.identifier0926-3373
dc.identifierhttp://hdl.handle.net/11449/25858
dc.identifierhttp://acervodigital.unesp.br/handle/11449/25858
dc.identifier10.1016/j.apcatb.2010.06.005
dc.identifierWOS:000281917200009
dc.identifier0000-0002-2296-1393
dc.identifierhttp://dx.doi.org/10.1016/j.apcatb.2010.06.005
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/870697
dc.descriptionSelf-organized Ti/TiO2 nanotubular array electrodes may be achieved by simple electrochemical anodization of Ti foil in NH4F/glycerol water solution. The photocurrent on nanotubular layers is remarkably improved in relation to that obtained on comparable nanoporous TiO2 films created by a sol gel process. The anatase form is priori in the highly ordered TiO2 annealed at 450 degrees C which improves its photoactivity. Both electrodes promote complete degradation of the investigated aromatic amine ODAN (4,4'-oxydianiline) after 120 min of photoeletrocatalytic oxidation with potential of 1.5V and UV irradiation. But, the ODAN mineralization is about 50% more efficient on nanotubular electrodes. The best experimental conditions were found to be pH 2.0 and 0.1 mol L-1 Na2SO4 when the photoelectrode was biased at +1.5 V (vs. SCE). Complete mineralization of the aromatic amine content (100% TOC reduction) was achieved after 2 h. Effects of other electrolytes, pH, amine concentration and applied potentials also have been investigated and are discussed. (C) 2010 Elsevier B.V. All rights reserved.
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.languageeng
dc.publisherElsevier B.V.
dc.relationApplied Catalysis B: Environmental
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectAromatic amines
dc.subjectPhotoelectrocatalysis
dc.subjectTiO2 nanotubes array electrodes
dc.subject4,4 '-Oxydianiline
dc.subjectAmine removal
dc.titleHighly ordered TiO2 nanotube arrays and photoelectrocatalytic oxidation of aromatic amine
dc.typeOtro


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