Fullerene C70‐Encapsulated Tetrathiafulvalene‐Co Porphyrin Covalent Organic Framework: Driving Multistep Charge Transfer to Boost CO2 Photoreduction

Abstract Constructing an efficient charge transfer system can significantly enhance photocatalytic CO2 reduction, yet efficient construction strategies remain to be explored. In this work, fullerene C70 is encapsulated into the tetrathiafulvalene‐Co porphyrin (TTF‐CoTPP) COF to fabricate an efficien...

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Main Authors: Ying Jiang, Chong Wang, Tianyang Dong, Yupeng Song, Tao Wang, Haibing Che, Hua Sheng, Bo Wu, Chunru Wang
Format: Article
Language:English
Published: Wiley 2025-07-01
Series:Advanced Science
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Online Access:https://doi.org/10.1002/advs.202505161
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author Ying Jiang
Chong Wang
Tianyang Dong
Yupeng Song
Tao Wang
Haibing Che
Hua Sheng
Bo Wu
Chunru Wang
author_facet Ying Jiang
Chong Wang
Tianyang Dong
Yupeng Song
Tao Wang
Haibing Che
Hua Sheng
Bo Wu
Chunru Wang
author_sort Ying Jiang
collection DOAJ
description Abstract Constructing an efficient charge transfer system can significantly enhance photocatalytic CO2 reduction, yet efficient construction strategies remain to be explored. In this work, fullerene C70 is encapsulated into the tetrathiafulvalene‐Co porphyrin (TTF‐CoTPP) COF to fabricate an efficient photocatalyst C70@COF. Transient absorption (TA) spectra indicate that C70 significantly promotes photogenerated charge separation (0.3 ps), subsequently driving multistep charge transfer within the composite system. This process ultimately yields a long‐lived charge‐separated state, TTF•+‐CoTPP‐C70 •− (>5 ns). Density functional theory (DFT) calculation reveals that the encapsulation of C70 forms a new electron transfer pathway and reduces the energy barrier for *COOH intermediate formation. The C70@COF exhibits a remarkable CO production rate of 4963.24 µmol g h−1, a 1.95‐fold enhancement over the pristine COF. This work highlights the potential of fullerene in boosting photocatalytic CO2 reduction performance and offers a facile strategy to design novel COF‐based photocatalysts.
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issn 2198-3844
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spelling doaj-art-49b4c5f8ce194cd8b7a275f7128fa5ff2025-08-20T02:50:52ZengWileyAdvanced Science2198-38442025-07-011228n/an/a10.1002/advs.202505161Fullerene C70‐Encapsulated Tetrathiafulvalene‐Co Porphyrin Covalent Organic Framework: Driving Multistep Charge Transfer to Boost CO2 PhotoreductionYing Jiang0Chong Wang1Tianyang Dong2Yupeng Song3Tao Wang4Haibing Che5Hua Sheng6Bo Wu7Chunru Wang8Beijing National Laboratory for Molecular Sciences Key Laboratory of Molecular Nanostructure and Nanotechnology Institute of Chemistry Chinese Academy of Sciences Beijing 100190 ChinaBeijing National Laboratory for Molecular Sciences Key Laboratory of Molecular Nanostructure and Nanotechnology Institute of Chemistry Chinese Academy of Sciences Beijing 100190 ChinaBeijing National Laboratory for Molecular Sciences Key Laboratory of Molecular Nanostructure and Nanotechnology Institute of Chemistry Chinese Academy of Sciences Beijing 100190 ChinaKey Laboratory of Photochemical Conversion and Optoelectronic Materials Technical Institute of Physics and Chemistry Chinese Academy of Sciences Beijing 100190 ChinaBeijing National Laboratory for Molecular Sciences Key Laboratory of Molecular Nanostructure and Nanotechnology Institute of Chemistry Chinese Academy of Sciences Beijing 100190 ChinaCollege of Chemistry and Life Sciences Chifeng University Chifeng 024000 ChinaBeijing National Laboratory for Molecular Sciences Key Laboratory of Molecular Nanostructure and Nanotechnology Institute of Chemistry Chinese Academy of Sciences Beijing 100190 ChinaBeijing National Laboratory for Molecular Sciences Key Laboratory of Molecular Nanostructure and Nanotechnology Institute of Chemistry Chinese Academy of Sciences Beijing 100190 ChinaBeijing National Laboratory for Molecular Sciences Key Laboratory of Molecular Nanostructure and Nanotechnology Institute of Chemistry Chinese Academy of Sciences Beijing 100190 ChinaAbstract Constructing an efficient charge transfer system can significantly enhance photocatalytic CO2 reduction, yet efficient construction strategies remain to be explored. In this work, fullerene C70 is encapsulated into the tetrathiafulvalene‐Co porphyrin (TTF‐CoTPP) COF to fabricate an efficient photocatalyst C70@COF. Transient absorption (TA) spectra indicate that C70 significantly promotes photogenerated charge separation (0.3 ps), subsequently driving multistep charge transfer within the composite system. This process ultimately yields a long‐lived charge‐separated state, TTF•+‐CoTPP‐C70 •− (>5 ns). Density functional theory (DFT) calculation reveals that the encapsulation of C70 forms a new electron transfer pathway and reduces the energy barrier for *COOH intermediate formation. The C70@COF exhibits a remarkable CO production rate of 4963.24 µmol g h−1, a 1.95‐fold enhancement over the pristine COF. This work highlights the potential of fullerene in boosting photocatalytic CO2 reduction performance and offers a facile strategy to design novel COF‐based photocatalysts.https://doi.org/10.1002/advs.202505161covalent organic frameworkfullereneslong‐lived charge‐separated statemultistep charge transferphotocatalytic CO2 reduction
spellingShingle Ying Jiang
Chong Wang
Tianyang Dong
Yupeng Song
Tao Wang
Haibing Che
Hua Sheng
Bo Wu
Chunru Wang
Fullerene C70‐Encapsulated Tetrathiafulvalene‐Co Porphyrin Covalent Organic Framework: Driving Multistep Charge Transfer to Boost CO2 Photoreduction
Advanced Science
covalent organic framework
fullerenes
long‐lived charge‐separated state
multistep charge transfer
photocatalytic CO2 reduction
title Fullerene C70‐Encapsulated Tetrathiafulvalene‐Co Porphyrin Covalent Organic Framework: Driving Multistep Charge Transfer to Boost CO2 Photoreduction
title_full Fullerene C70‐Encapsulated Tetrathiafulvalene‐Co Porphyrin Covalent Organic Framework: Driving Multistep Charge Transfer to Boost CO2 Photoreduction
title_fullStr Fullerene C70‐Encapsulated Tetrathiafulvalene‐Co Porphyrin Covalent Organic Framework: Driving Multistep Charge Transfer to Boost CO2 Photoreduction
title_full_unstemmed Fullerene C70‐Encapsulated Tetrathiafulvalene‐Co Porphyrin Covalent Organic Framework: Driving Multistep Charge Transfer to Boost CO2 Photoreduction
title_short Fullerene C70‐Encapsulated Tetrathiafulvalene‐Co Porphyrin Covalent Organic Framework: Driving Multistep Charge Transfer to Boost CO2 Photoreduction
title_sort fullerene c70 encapsulated tetrathiafulvalene co porphyrin covalent organic framework driving multistep charge transfer to boost co2 photoreduction
topic covalent organic framework
fullerenes
long‐lived charge‐separated state
multistep charge transfer
photocatalytic CO2 reduction
url https://doi.org/10.1002/advs.202505161
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