| Full text | |
| Author(s): |
Fabrao, Rodrigo Monteiro
;
de Brito, Juliana Ferreira
;
da Silva, Jose Luiz
;
Stradiotto, Nelson Ramos
;
Boldrin Zanoni, Maria Valnice
Total Authors: 5
|
| Document type: | Journal article |
| Source: | Electrochimica Acta; v. 222, p. 123-132, DEC 20 2016. |
| Web of Science Citations: | 4 |
| Abstract | |
The present work describes an alternative process for glucose oxidation via photoelectrocatalytic technique using Ti/TiO2 nanotubes as photoanodes. Under optimum experimental conditions, which entailed 10.0 mM glucose in 0.1 M Na2SO4, pH 6.60, E-app = 1.5 V and UV irradiation we were able to convert 78% of glucose following 180 min of photoelectrocatalysis. Out of that, only 28% was in effect, converted to CO2 as detected by total organic carbon removal. During the course of the process, a large part of this glucose was found to be transformed into products among them including Arabinose, Arabinitol, 4-ketoglicose, glucohexodialdose, Glucone-delta-Lactone, 6-deoxiglucose and Gluconic Acid, where this detection was aided by ion-exchange chromatography with amperometric detection and gas chromatography-mass spectra. The results thus essentially demonstrate that photoelectrocatalys can be considered a suitable alternative in fostering glucose conversion, in aqueous medium, to high added value products using a relatively simple and economic method. (C) 2016 Elsevier Ltd. All rights reserved. (AU) | |
| FAPESP's process: | 08/10449-7 - Assessment of occurrence, toxicity/genotoxicity and degradation processes of dyes in effluents and surface water |
| 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 |