The Superiority of TiO<sub>2</sub> Supported on Nickel Foam over Ni-Doped TiO<sub>2</sub> in the Photothermal Decomposition of Acetaldehyde
Acetaldehyde decomposition was performed under heating at a temperature range of 25–125 °C and UV irradiation on TiO<sub>2</sub> doped by metallic Ni powder and TiO<sub>2</sub> supported on nickel foam. The process was carried out in a high-temperature reaction chamber, “The...
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| author | Beata Tryba Piotr Miądlicki Piotr Rychtowski Maciej Trzeciak Rafał Jan Wróbel |
| author_facet | Beata Tryba Piotr Miądlicki Piotr Rychtowski Maciej Trzeciak Rafał Jan Wróbel |
| author_sort | Beata Tryba |
| collection | DOAJ |
| description | Acetaldehyde decomposition was performed under heating at a temperature range of 25–125 °C and UV irradiation on TiO<sub>2</sub> doped by metallic Ni powder and TiO<sub>2</sub> supported on nickel foam. The process was carried out in a high-temperature reaction chamber, “The Praying Mantis<sup>TM</sup>”, with simultaneous in situ FTIR measurements and UV irradiation. Ni powder was added to TiO<sub>2</sub> in the quantity of 0.5 to 5.0 wt%. The photothermal measurements of acetaldehyde decomposition indicated that the highest yield of acetaldehyde conversion on TiO<sub>2</sub> and UV irradiation was obtained at 75 °C. The doping of nickel to TiO<sub>2</sub> did not increase its photocatalytic activity. Contrary to that, the application of nickel foam as a support for TiO<sub>2</sub> appeared to be highly advantageous because it increased the decomposition of acetaldehyde from 31 to 52% at 25 °C, and then to 85% at 100 °C in comparison with TiO<sub>2</sub> itself. At the same time, the mineralization of acetaldehyde to CO<sub>2</sub> doubled in the presence of nickel foam. However, oxidized nickel foam used as support for TiO<sub>2</sub> was detrimental. Most likely, different mechanisms of electron transfer between Ni–TiO<sub>2</sub> and NiO-TiO<sub>2</sub> occurred. The application of nickel foam greatly enhanced the separation of free carriers in TiO<sub>2</sub>. As a consequence, high yields from the photocatalytic reactions were obtained. |
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| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-11T00:23:25Z |
| publishDate | 2023-07-01 |
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| spelling | doaj.art-6d5098c9e302467ab7e776ae2792213a2023-11-18T23:10:41ZengMDPI AGMaterials1996-19442023-07-011615524110.3390/ma16155241The Superiority of TiO<sub>2</sub> Supported on Nickel Foam over Ni-Doped TiO<sub>2</sub> in the Photothermal Decomposition of AcetaldehydeBeata Tryba0Piotr Miądlicki1Piotr Rychtowski2Maciej Trzeciak3Rafał Jan Wróbel4Department of Catalytic and Sorbent Materials Engineering, Faculty of Chemical Technology and Engineering, West Pomeranian University of Technology in Szczecin, Pułaskiego 10, 70-322 Szczecin, PolandDepartment of Catalytic and Sorbent Materials Engineering, Faculty of Chemical Technology and Engineering, West Pomeranian University of Technology in Szczecin, Pułaskiego 10, 70-322 Szczecin, PolandDepartment of Catalytic and Sorbent Materials Engineering, Faculty of Chemical Technology and Engineering, West Pomeranian University of Technology in Szczecin, Pułaskiego 10, 70-322 Szczecin, PolandDepartment of Catalytic and Sorbent Materials Engineering, Faculty of Chemical Technology and Engineering, West Pomeranian University of Technology in Szczecin, Pułaskiego 10, 70-322 Szczecin, PolandDepartment of Catalytic and Sorbent Materials Engineering, Faculty of Chemical Technology and Engineering, West Pomeranian University of Technology in Szczecin, Pułaskiego 10, 70-322 Szczecin, PolandAcetaldehyde decomposition was performed under heating at a temperature range of 25–125 °C and UV irradiation on TiO<sub>2</sub> doped by metallic Ni powder and TiO<sub>2</sub> supported on nickel foam. The process was carried out in a high-temperature reaction chamber, “The Praying Mantis<sup>TM</sup>”, with simultaneous in situ FTIR measurements and UV irradiation. Ni powder was added to TiO<sub>2</sub> in the quantity of 0.5 to 5.0 wt%. The photothermal measurements of acetaldehyde decomposition indicated that the highest yield of acetaldehyde conversion on TiO<sub>2</sub> and UV irradiation was obtained at 75 °C. The doping of nickel to TiO<sub>2</sub> did not increase its photocatalytic activity. Contrary to that, the application of nickel foam as a support for TiO<sub>2</sub> appeared to be highly advantageous because it increased the decomposition of acetaldehyde from 31 to 52% at 25 °C, and then to 85% at 100 °C in comparison with TiO<sub>2</sub> itself. At the same time, the mineralization of acetaldehyde to CO<sub>2</sub> doubled in the presence of nickel foam. However, oxidized nickel foam used as support for TiO<sub>2</sub> was detrimental. Most likely, different mechanisms of electron transfer between Ni–TiO<sub>2</sub> and NiO-TiO<sub>2</sub> occurred. The application of nickel foam greatly enhanced the separation of free carriers in TiO<sub>2</sub>. As a consequence, high yields from the photocatalytic reactions were obtained.https://www.mdpi.com/1996-1944/16/15/5241thermo-photocatalysisnickel foamNi-doped TiO<sub>2</sub>acetaldehyde decomposition |
| spellingShingle | Beata Tryba Piotr Miądlicki Piotr Rychtowski Maciej Trzeciak Rafał Jan Wróbel The Superiority of TiO<sub>2</sub> Supported on Nickel Foam over Ni-Doped TiO<sub>2</sub> in the Photothermal Decomposition of Acetaldehyde Materials thermo-photocatalysis nickel foam Ni-doped TiO<sub>2</sub> acetaldehyde decomposition |
| title | The Superiority of TiO<sub>2</sub> Supported on Nickel Foam over Ni-Doped TiO<sub>2</sub> in the Photothermal Decomposition of Acetaldehyde |
| title_full | The Superiority of TiO<sub>2</sub> Supported on Nickel Foam over Ni-Doped TiO<sub>2</sub> in the Photothermal Decomposition of Acetaldehyde |
| title_fullStr | The Superiority of TiO<sub>2</sub> Supported on Nickel Foam over Ni-Doped TiO<sub>2</sub> in the Photothermal Decomposition of Acetaldehyde |
| title_full_unstemmed | The Superiority of TiO<sub>2</sub> Supported on Nickel Foam over Ni-Doped TiO<sub>2</sub> in the Photothermal Decomposition of Acetaldehyde |
| title_short | The Superiority of TiO<sub>2</sub> Supported on Nickel Foam over Ni-Doped TiO<sub>2</sub> in the Photothermal Decomposition of Acetaldehyde |
| title_sort | superiority of tio sub 2 sub supported on nickel foam over ni doped tio sub 2 sub in the photothermal decomposition of acetaldehyde |
| topic | thermo-photocatalysis nickel foam Ni-doped TiO<sub>2</sub> acetaldehyde decomposition |
| url | https://www.mdpi.com/1996-1944/16/15/5241 |
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