Turning carbon dioxide into fuel concomitantly to the photoanode-driven process of organic pollutant degradation by photoelectrocatalysis

dc.contributor.authorBrito, Juliana Ferreira de [UNESP]
dc.contributor.authorPerini, João Angelo Lima [UNESP]
dc.contributor.authorPerathoner, Siglinda
dc.contributor.authorZanoni, Maria Valnice Boldrin [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionERIC aisbl and CASPE/INSTM
dc.date.accessioned2019-10-06T17:06:46Z
dc.date.available2019-10-06T17:06:46Z
dc.date.issued2019-05-20
dc.description.abstractTiO 2 nanotubes (TiO 2 Nt) were modified with zirconium oxide and used as photoanode-driven to oxidize benzyl alcohol concomitantly to the reduction of carbon dioxide using a gas diffusion layer modified with cuprous oxide (GDL-Cu 2 O) as cathode. ZrO 2 was deposited by a simple wet chemical method onto TiO 2 Nt and presented higher photocurrents when irradiated by UV–Vis irradiation. Under optimized conditions, 0.1 mol L −1 Na 2 SO 4 pH 7 and 0.1 mol L −1 KHCO 3 pH 7 supporting electrolytes in the anodic and cathodic compartments, respectively, the degradation of benzyl alcohol reached 41% at the TiO 2 Nt electrode and 68% at TiO 2 Nt-ZrO 2 under UV–Vis irradiation and bias potential of 1.5 V vs. Ag/AgCl. Concomitantly, the electrons driven to the cathode side saturated with CO 2 promoted generation of around 3.8 mmol L −1 of methanol and 0.96 mmol L −1 of ethanol under TiO 2 Nt-ZrO 2 . So, our finding shows for the first time the performance of a hybrid reactor in which is possible to promote photooxidation of an organic compound concomitantly to CO 2 reduction to alcohol using a simple photoanode-driven and a cathode separated by a proton exchange membrane.en
dc.description.affiliationUniv. Estadual Paulista (Unesp) Instituto de Química, Araraquara. Av. Prof. Francisco Degni, 55
dc.description.affiliationUniv. of Messina ERIC aisbl and CASPE/INSTM Departments ChiBioFarAm and MIFT, viale F. Stagno d'Alcontres 31
dc.description.affiliationUnespUniv. Estadual Paulista (Unesp) Instituto de Química, Araraquara. Av. Prof. Francisco Degni, 55
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipIdFAPESP: 2013/25343-8
dc.description.sponsorshipIdFAPESP: 2014/50945-4
dc.description.sponsorshipIdFAPESP: 2015/18109-4
dc.description.sponsorshipIdFAPESP: 2016/07895-1
dc.description.sponsorshipIdFAPESP: 2016/18057-7
dc.description.sponsorshipIdCNPq: 446245/2014-3
dc.format.extent277-284
dc.identifierhttp://dx.doi.org/10.1016/j.electacta.2019.03.134
dc.identifier.citationElectrochimica Acta, v. 306, p. 277-284.
dc.identifier.doi10.1016/j.electacta.2019.03.134
dc.identifier.issn0013-4686
dc.identifier.scopus2-s2.0-85063633101
dc.identifier.urihttp://hdl.handle.net/11449/190240
dc.language.isoeng
dc.relation.ispartofElectrochimica Acta
dc.rights.accessRightsAcesso aberto
dc.sourceScopus
dc.subjectAlcohol production
dc.subjectCO 2 reduction
dc.subjectPEC reactor
dc.subjectSemiconductors
dc.subjectWastewater oxidation
dc.titleTurning carbon dioxide into fuel concomitantly to the photoanode-driven process of organic pollutant degradation by photoelectrocatalysisen
dc.typeArtigo

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