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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

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

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de Brito, Juliana Ferreira [1, 2, 3, 4, 5] ; Lima Perini, Joao Angelo [5] ; Perathoner, Siglinda [1, 2, 3, 4] ; Boldrin Zanoni, Maria Valnice [5]
Total Authors: 4
[1] Univ Messina, ERIC Aisbl, Viale F Stagno dAlcontres 31, I-98166 Messina - Italy
[2] INSTM, CASPE, Viale F Stagno dAlcontres 31, I-98166 Messina - Italy
[3] Dept ChiBioFarAm, Viale F Stagno dAlcontres 31, I-98166 Messina - Italy
[4] Dept MIFT, Viale F Stagno dAlcontres 31, I-98166 Messina - Italy
[5] Univ Estadual Paulista, UNESP, Inst Quim, Av Prof Francisco Degni 55, BR-14800060 Araraquara, SP - Brazil
Total Affiliations: 5
Document type: Journal article
Source: Electrochimica Acta; v. 306, p. 277-284, MAY 20 2019.
Web of Science Citations: 1

TiO2 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-Cu2O) as cathode. ZrO2 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 Na2SO4 pH 7 and 0.1 mol L-1 KHCO3 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-ZrO2 under UV-Vis irradiation and bias potential of 1.5 V vs. Ag/AgCl. Concomitantly, the electrons driven to the cathode side saturated with CO2 promoted generation of around 3.8 mmol L-1 of methanol and 0.96 mmol L-1 of ethanol under TiO(2)Nt-ZrO2. 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 CO2 reduction to alcohol using a simple photoanode-driven and a cathode separated by a proton exchange membrane. (c) 2019 Elsevier Ltd. All rights reserved. (AU)

FAPESP's process: 15/18109-4 - Contribution of Nanostructured Materials in Electroanalysis of pharmaceuticals and dyes, in the oxidation and reduction photoeletrocatalytic process of Inorganic and Organic Pollutants and Water Disinfection.
Grantee:Maria Valnice Boldrin
Support type: Regular Research Grants
FAPESP's process: 14/50945-4 - INCT 2014: National Institute for Alternative Technologies of Detection, Toxicological Evaluation and Removal of Micropollutants and Radioactivies
Grantee:Maria Valnice Boldrin
Support type: Research Projects - Thematic Grants
FAPESP's process: 13/25343-8 - Simultaneous Oxidation of Organic Compounds in Wastewater Petroleum and Reduction of Dissolved CO2 by Photoelectrocatalysis
Grantee:Juliana Ferreira de Brito
Support type: Scholarships in Brazil - Doctorate
FAPESP's process: 16/07895-1 - CO2 reduction in gas phase on carbon based GDL with different non-noble metal catalysts applying a specific photoelectrocatalysis designed reactor
Grantee:Juliana Ferreira de Brito
Support type: Scholarships abroad - Research Internship - Doctorate
FAPESP's process: 16/18057-7 - CO2 reduction aiming to generate value-added compounds by photocatalysis/photoelectrocatalysis using ionic liquid in a pressurized reactor
Grantee:João Angelo de Lima Perini
Support type: Scholarships in Brazil - Post-Doctorate