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Azobenzene-equipped Covalent triazine polymers for Visible-Light-Driven photocatalytic reduction of CO2 to CH4
Qi Huang,
Zhen Zhan 
,
Yuanting Qiao ,
Xueting Pan,
Shaojun Xu ,
Bien Tan ,
Chunfei Wu
,
Yuanting Qiao ,
Xueting Pan,
Shaojun Xu ,
Bien Tan ,
Chunfei Wu
Fuel, Volume: 361, Start page: 130646
Swansea University Author:
Yuanting Qiao
-
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DOI (Published version): 10.1016/j.fuel.2023.130646
Abstract
Covalent triazine polymers, as large π conjugated, highly porous, nitrogen riched organic semiconductors, can play a key role in tackling the fuel energy crisis and global warming issues. However, their development in photocatalytic CO2 reduction is still rare. More effective strategies to enhance C...
| Published in: | Fuel |
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| ISSN: | 0016-2361 |
| Published: |
Elsevier BV
2024
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| Online Access: |
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| URI: | https://cronfa.swan.ac.uk/Record/cronfa67098 |
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| Abstract: |
Covalent triazine polymers, as large π conjugated, highly porous, nitrogen riched organic semiconductors, can play a key role in tackling the fuel energy crisis and global warming issues. However, their development in photocatalytic CO2 reduction is still rare. More effective strategies to enhance CO2 reduction activity need to be explored. Herein, different amounts of azobenzene pendants functionalized CTPs: Azo-CTP0, Azo-CTP1, Azo-mCTP1 and Azo-CTP2, were fabricated for photocatalytic CO2 reduction with Pd loaded. Among them, Azo-mCTP1 displayed the highest CO2 uptake capacity up to 48.2 cm3 g−1 (2.15 mmol g−1) at 273 K, and the highest CH4 evolution rate in the water system, with selectivity highly up to 97 %. Apart from that, the azobenzene functionalization of Azo-CTP0 could significantly boost the CO2 reduction efficiency by 4 times. Therefore, this study provides a potentially general approach for accurately modifying organic semiconductors to enhance photocatalytic performance. |
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| Keywords: |
Azobenzene contained; Covalent triazine polymers (CTPs); photocatalytic CO2 conversion |
| College: |
Faculty of Science and Engineering |
| Funders: |
The authors sincerely appreciate the financial support from the China Scholarship Council. We also appreciate the isotopic GC-MS support from Center for Experimental Chemistry, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology. This project has received funding from the European Union’s Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie grant agreement No 823745. |
| Start Page: |
130646 |