| Full text | |
| Author(s): |
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
|
| Affiliation: | [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 |
| Abstract | |
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: | 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 Opportunities: | Research Projects - Thematic Grants |
| 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 Opportunities: | Regular Research 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 Opportunities: | Scholarships in Brazil - 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 Opportunities: | Scholarships in Brazil - Post-Doctoral |
| 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 Opportunities: | Scholarships abroad - Research Internship - Doctorate |