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

doi:10.1016/j.fuel.2023.130646

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^*

^*Corresponding author for this work

School of Chemistry and Chemical Engineering

Research output: Contribution to journal › Article › peer-review

6 Citations (Scopus)

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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.

Original language	English
Article number	130646
Number of pages	9
Journal	Fuel
Volume	361
Early online date	28 Dec 2023
DOIs	https://doi.org/10.1016/j.fuel.2023.130646
Publication status	Published - 01 Apr 2024

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Azobenzene-equipped covalent triazine polymers for visible-light-driven photocatalytic reduction of CO2 to CH4
Copyright 2023 The Authors. This is an open access article published under a Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium, provided the author and source are cited.
Final published version, 6.86 MBLicence: CC BY

Cite this

@article{e58b3d3491714e438b11992909e9c007,

title = "Azobenzene-equipped covalent triazine polymers for visible-light-driven photocatalytic reduction of CO2 to CH4",

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.",

author = "Qi Huang and Zhen Zhan and Yuanting Qiao and Xueting Pan and Shaojun Xu and Bien Tan and Chunfei Wu",

year = "2024",

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doi = "10.1016/j.fuel.2023.130646",

language = "English",

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T1 - Azobenzene-equipped covalent triazine polymers for visible-light-driven photocatalytic reduction of CO2 to CH4

AU - Huang, Qi

AU - Zhan, Zhen

AU - Qiao, Yuanting

AU - Pan, Xueting

AU - Xu, Shaojun

AU - Tan, Bien

AU - Wu, Chunfei

PY - 2024/4/1

Y1 - 2024/4/1

N2 - 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.

AB - 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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DO - 10.1016/j.fuel.2023.130646

M3 - Article

SN - 0016-2361

VL - 361

JO - Fuel

JF - Fuel

M1 - 130646

ER -

Azobenzene-equipped covalent triazine polymers for visible-light-driven photocatalytic reduction of CO2 to CH4

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Azobenzene-equipped covalent triazine polymers for visible-light-driven photocatalytic reduction of CO₂ to CH₄