Enhanced Visible Light Controlled Glucose Photo-Reforming Using a Composite WO<sub>3</sub>/Ag/TiO<sub>2</sub> Photoanode: Effect of Incorporated Plasmonic Ag Nanoparticles
WO<sub>3</sub>/Ag/TiO<sub>2</sub> composite photoelectrodes were formed via the high-temperature calcination of a WO<sub>3</sub> film, followed by the sputtering of a very thin silver film and deposition of an overlayer of commercial TiO<sub>2</sub> na...
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2024-12-01
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| Series: | Nanomaterials |
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| Online Access: | https://www.mdpi.com/2079-4991/14/24/2001 |
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| author | Katarzyna Jakubow-Piotrowska Bartlomiej Witkowski Piotr Wrobel Krzysztof Miecznikowski Jan Augustynski |
| author_facet | Katarzyna Jakubow-Piotrowska Bartlomiej Witkowski Piotr Wrobel Krzysztof Miecznikowski Jan Augustynski |
| author_sort | Katarzyna Jakubow-Piotrowska |
| collection | DOAJ |
| description | WO<sub>3</sub>/Ag/TiO<sub>2</sub> composite photoelectrodes were formed via the high-temperature calcination of a WO<sub>3</sub> film, followed by the sputtering of a very thin silver film and deposition of an overlayer of commercial TiO<sub>2</sub> nanoparticles. These synthetic photoanodes were characterized in view of the oxidation of a model organic compound glucose combined with the generation of hydrogen at a platinum cathode. During prolonged photoelectrolysis under simulated solar light, these photoanodes demonstrated high and stable photocurrents of ca. 4 mA cm<sup>−2</sup> due, on one hand, to the occurrence of the so-called photocurrent doubling and, on the other hand, to the plasmonic effect of Ag nanoparticles. The post-photoelectrolysis analyses of the electrolyte demonstrated the formation of high-value final glucose photo-reforming products, principally gluconic acid, erythrose and formic acid. |
| format | Article |
| id | doaj-art-9c31b4b981724d4daaae7e4e33c7fe03 |
| institution | Kabale University |
| issn | 2079-4991 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Nanomaterials |
| spelling | doaj-art-9c31b4b981724d4daaae7e4e33c7fe032024-12-27T14:43:27ZengMDPI AGNanomaterials2079-49912024-12-011424200110.3390/nano14242001Enhanced Visible Light Controlled Glucose Photo-Reforming Using a Composite WO<sub>3</sub>/Ag/TiO<sub>2</sub> Photoanode: Effect of Incorporated Plasmonic Ag NanoparticlesKatarzyna Jakubow-Piotrowska0Bartlomiej Witkowski1Piotr Wrobel2Krzysztof Miecznikowski3Jan Augustynski4Centre of New Technologies, University of Warsaw, S. Banacha 2c, 02-097 Warsaw, PolandFaculty of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warsaw, PolandFaculty of Physics, University of Warsaw, Pasteura 5, 02-093 Warsaw, PolandFaculty of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warsaw, PolandCentre of New Technologies, University of Warsaw, S. Banacha 2c, 02-097 Warsaw, PolandWO<sub>3</sub>/Ag/TiO<sub>2</sub> composite photoelectrodes were formed via the high-temperature calcination of a WO<sub>3</sub> film, followed by the sputtering of a very thin silver film and deposition of an overlayer of commercial TiO<sub>2</sub> nanoparticles. These synthetic photoanodes were characterized in view of the oxidation of a model organic compound glucose combined with the generation of hydrogen at a platinum cathode. During prolonged photoelectrolysis under simulated solar light, these photoanodes demonstrated high and stable photocurrents of ca. 4 mA cm<sup>−2</sup> due, on one hand, to the occurrence of the so-called photocurrent doubling and, on the other hand, to the plasmonic effect of Ag nanoparticles. The post-photoelectrolysis analyses of the electrolyte demonstrated the formation of high-value final glucose photo-reforming products, principally gluconic acid, erythrose and formic acid.https://www.mdpi.com/2079-4991/14/24/2001photoelectrochemical oxidationglucose conversionsilver catalystvisible light absorption |
| spellingShingle | Katarzyna Jakubow-Piotrowska Bartlomiej Witkowski Piotr Wrobel Krzysztof Miecznikowski Jan Augustynski Enhanced Visible Light Controlled Glucose Photo-Reforming Using a Composite WO<sub>3</sub>/Ag/TiO<sub>2</sub> Photoanode: Effect of Incorporated Plasmonic Ag Nanoparticles Nanomaterials photoelectrochemical oxidation glucose conversion silver catalyst visible light absorption |
| title | Enhanced Visible Light Controlled Glucose Photo-Reforming Using a Composite WO<sub>3</sub>/Ag/TiO<sub>2</sub> Photoanode: Effect of Incorporated Plasmonic Ag Nanoparticles |
| title_full | Enhanced Visible Light Controlled Glucose Photo-Reforming Using a Composite WO<sub>3</sub>/Ag/TiO<sub>2</sub> Photoanode: Effect of Incorporated Plasmonic Ag Nanoparticles |
| title_fullStr | Enhanced Visible Light Controlled Glucose Photo-Reforming Using a Composite WO<sub>3</sub>/Ag/TiO<sub>2</sub> Photoanode: Effect of Incorporated Plasmonic Ag Nanoparticles |
| title_full_unstemmed | Enhanced Visible Light Controlled Glucose Photo-Reforming Using a Composite WO<sub>3</sub>/Ag/TiO<sub>2</sub> Photoanode: Effect of Incorporated Plasmonic Ag Nanoparticles |
| title_short | Enhanced Visible Light Controlled Glucose Photo-Reforming Using a Composite WO<sub>3</sub>/Ag/TiO<sub>2</sub> Photoanode: Effect of Incorporated Plasmonic Ag Nanoparticles |
| title_sort | enhanced visible light controlled glucose photo reforming using a composite wo sub 3 sub ag tio sub 2 sub photoanode effect of incorporated plasmonic ag nanoparticles |
| topic | photoelectrochemical oxidation glucose conversion silver catalyst visible light absorption |
| url | https://www.mdpi.com/2079-4991/14/24/2001 |
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