Citation: Xia Jiang, Yan-Xin Chen, Rui Chen, Hao-Yan Shi, Ke-Xian Li, Wen-Ya Zhong, Jian-Feng Li, Can-Zhong Lu. Thermo-photocatalytic CO₂ conversion with H₂O to C₂ products in a continuous process by ZIF-67/biochar composites[J]. Chinese Chemical Letters, ;2026, 37(4): 111781. doi: 10.1016/j.cclet.2025.111781 shu

Thermo-photocatalytic CO₂ conversion with H₂O to C₂ products in a continuous process by ZIF-67/biochar composites

Xia Jiang ^{a, c} ,
Yan-Xin Chen ^{a, c, d, *,} ,
Rui Chen ^{a, c} ,
Hao-Yan Shi ^{a, c, d} ,
Ke-Xian Li ^{a, c} ,
Wen-Ya Zhong ^{a, c} ,
Jian-Feng Li ^{b, *,} ,
Can-Zhong Lu ^{a, c, d, *,}

a.
State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China, Fuzhou 350108, China
b.
State Key Laboratory of Physical Chemistry of Solid Surfaces, iChEM, College of Chemistry and Chemical Engineering, College of Energy, Xiamen University, Xiamen 361005, China
c.
Xiamen Key Laboratory of Rare Earth Photoelectric Functional Materials, Xiamen Institute of Rare-earth Materials, Xiamen 361021, China
d.
University of Chinese Academy of Sciences, Beijing 100049, China

yanxinchen@fjirsm.ac.cn

Li@xmu.edu.cn

czlu@fjirsm.ac.cn

Received Date: 20 April 2025
Revised Date: 19 July 2025
Accepted Date: 1 September 2025
Available Online: 2 September 2025

Figures(10)

Thermo-photocatalytic CO₂ conversion to C₂ products exhibits high research value and industrial potential. Enhancing the catalyst's adsorption activation for CO₂ and H₂O, along with multistep proton-coupled electron transfer (PCET) and C-C coupling, is crucial for achieving thermo-photocatalytic CO₂ reduction conversion to C₂ products with H₂O as a proton source in a continuous process. In this paper, we explore a novel approach utilizing biochar to obtain catalysts with more defects and combine reducing biochar with MOF Materials (ZIF-67) to get a composite (ZIF-67/PC) with substantial CO₂ and H₂O adsorption activation capabilities and electron density gradients. Compared to PC and ZIF-67, the ZIF-67/PC exhibited excellent catalytic performance, particularly in obtaining a certain amount of C₂ products (yield 5.59 µmol g^-1 h^-1, selectivity 55.96%). We also investigated the structure-function relationship of the catalyst and the contributions of thermal and light effects to the catalytic reaction, aiming to guide the establishment of efficient, high-throughput catalytic CO₂ conversion technologies.
- Biochar,
- ZIF-67,
- Thermo-photocatalytic,
- CO₂ conversion,
- Continuous process,
- C₂ products
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1.
沈阳化工大学材料科学与工程学院沈阳 110142

Thermo-photocatalytic CO2 conversion with H2O to C2 products in a continuous process by ZIF-67/biochar composites

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Thermo-photocatalytic CO₂ conversion with H₂O to C₂ products in a continuous process by ZIF-67/biochar composites