The influence of the addition of carbon spheres on photoactivity of TiO2 and ZnO in CO2 reduction process
The development of an effective photocatalyst for CO2 reduction is currently being addressed by many scientists. This study concerns the influence of the addition of carbon spheres (CS) on photoactivity of TiO2 and ZnO. The photocatalysts were tested in a liquid phase system in an alkaline environme...
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| Format: | Article |
| Language: | English |
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Elsevier
2023-09-01
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| Series: | Journal of CO2 Utilization |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2212982023001646 |
| _version_ | 1827819199370625024 |
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| author | Antoni W. Morawski Katarzyna Ćmielewska Ewelina Kusiak-Nejman Piotr Staciwa Joanna Kapica-Kozar Ewa Ekiert Iwona Pełech Urszula Narkiewicz |
| author_facet | Antoni W. Morawski Katarzyna Ćmielewska Ewelina Kusiak-Nejman Piotr Staciwa Joanna Kapica-Kozar Ewa Ekiert Iwona Pełech Urszula Narkiewicz |
| author_sort | Antoni W. Morawski |
| collection | DOAJ |
| description | The development of an effective photocatalyst for CO2 reduction is currently being addressed by many scientists. This study concerns the influence of the addition of carbon spheres (CS) on photoactivity of TiO2 and ZnO. The photocatalysts were tested in a liquid phase system in an alkaline environment. The suspensions of the tested materials were irradiated with UV–Vis light for 6 h. Then, the amount of the obtained products in the gas phase was analysed by gas chromatography. The identified products of CO2 photoreduction were hydrogen, carbon monoxide, and methane. Based on the results, it was found that CS/TiO2 and CS/ZnO showed similar activity in carbon dioxide reduction processes, however, more product amounts were obtained in experiments with the use of CS/TiO2 materials. The addition of carbon spheres to titanium dioxide improved its activity in carbon monoxide production. The maximum photoactivity of CS/TiO2 was observed for the addition of 0.1 g of CS. On the other hand, in the case of CS/ZnO materials, carbon spheres did not positively affect their performance. Nevertheless, their activity increased with the CS amount. |
| first_indexed | 2024-03-12T01:10:40Z |
| format | Article |
| id | doaj.art-504bd571a92f44b9881b518c10f75ffc |
| institution | Directory Open Access Journal |
| issn | 2212-9839 |
| language | English |
| last_indexed | 2024-03-12T01:10:40Z |
| publishDate | 2023-09-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of CO2 Utilization |
| spelling | doaj.art-504bd571a92f44b9881b518c10f75ffc2023-09-14T04:53:29ZengElsevierJournal of CO2 Utilization2212-98392023-09-0175102553The influence of the addition of carbon spheres on photoactivity of TiO2 and ZnO in CO2 reduction processAntoni W. Morawski0Katarzyna Ćmielewska1Ewelina Kusiak-Nejman2Piotr Staciwa3Joanna Kapica-Kozar4Ewa Ekiert5Iwona Pełech6Urszula Narkiewicz7Department of Inorganic Chemical Technology and Environment Engineering, Faculty of Chemical Technology and Engineering, West Pomeranian University of Technology in Szczecin, Pułaskiego 10, 70-322 Szczecin, PolandCorresponding author.; Department of Inorganic Chemical Technology and Environment Engineering, Faculty of Chemical Technology and Engineering, West Pomeranian University of Technology in Szczecin, Pułaskiego 10, 70-322 Szczecin, PolandDepartment of Inorganic Chemical Technology and Environment Engineering, Faculty of Chemical Technology and Engineering, West Pomeranian University of Technology in Szczecin, Pułaskiego 10, 70-322 Szczecin, PolandDepartment of Inorganic Chemical Technology and Environment Engineering, Faculty of Chemical Technology and Engineering, West Pomeranian University of Technology in Szczecin, Pułaskiego 10, 70-322 Szczecin, PolandDepartment of Inorganic Chemical Technology and Environment Engineering, Faculty of Chemical Technology and Engineering, West Pomeranian University of Technology in Szczecin, Pułaskiego 10, 70-322 Szczecin, PolandDepartment of Inorganic Chemical Technology and Environment Engineering, Faculty of Chemical Technology and Engineering, West Pomeranian University of Technology in Szczecin, Pułaskiego 10, 70-322 Szczecin, PolandDepartment of Inorganic Chemical Technology and Environment Engineering, Faculty of Chemical Technology and Engineering, West Pomeranian University of Technology in Szczecin, Pułaskiego 10, 70-322 Szczecin, PolandDepartment of Inorganic Chemical Technology and Environment Engineering, Faculty of Chemical Technology and Engineering, West Pomeranian University of Technology in Szczecin, Pułaskiego 10, 70-322 Szczecin, PolandThe development of an effective photocatalyst for CO2 reduction is currently being addressed by many scientists. This study concerns the influence of the addition of carbon spheres (CS) on photoactivity of TiO2 and ZnO. The photocatalysts were tested in a liquid phase system in an alkaline environment. The suspensions of the tested materials were irradiated with UV–Vis light for 6 h. Then, the amount of the obtained products in the gas phase was analysed by gas chromatography. The identified products of CO2 photoreduction were hydrogen, carbon monoxide, and methane. Based on the results, it was found that CS/TiO2 and CS/ZnO showed similar activity in carbon dioxide reduction processes, however, more product amounts were obtained in experiments with the use of CS/TiO2 materials. The addition of carbon spheres to titanium dioxide improved its activity in carbon monoxide production. The maximum photoactivity of CS/TiO2 was observed for the addition of 0.1 g of CS. On the other hand, in the case of CS/ZnO materials, carbon spheres did not positively affect their performance. Nevertheless, their activity increased with the CS amount.http://www.sciencedirect.com/science/article/pii/S2212982023001646PhotocatalysisCarbon spheresTitanium dioxideZinc oxideCarbon dioxide |
| spellingShingle | Antoni W. Morawski Katarzyna Ćmielewska Ewelina Kusiak-Nejman Piotr Staciwa Joanna Kapica-Kozar Ewa Ekiert Iwona Pełech Urszula Narkiewicz The influence of the addition of carbon spheres on photoactivity of TiO2 and ZnO in CO2 reduction process Journal of CO2 Utilization Photocatalysis Carbon spheres Titanium dioxide Zinc oxide Carbon dioxide |
| title | The influence of the addition of carbon spheres on photoactivity of TiO2 and ZnO in CO2 reduction process |
| title_full | The influence of the addition of carbon spheres on photoactivity of TiO2 and ZnO in CO2 reduction process |
| title_fullStr | The influence of the addition of carbon spheres on photoactivity of TiO2 and ZnO in CO2 reduction process |
| title_full_unstemmed | The influence of the addition of carbon spheres on photoactivity of TiO2 and ZnO in CO2 reduction process |
| title_short | The influence of the addition of carbon spheres on photoactivity of TiO2 and ZnO in CO2 reduction process |
| title_sort | influence of the addition of carbon spheres on photoactivity of tio2 and zno in co2 reduction process |
| topic | Photocatalysis Carbon spheres Titanium dioxide Zinc oxide Carbon dioxide |
| url | http://www.sciencedirect.com/science/article/pii/S2212982023001646 |
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