生物光/电催化复合系统用于高效CO<sub>2</sub>还原的研究进展

李倩男; 陈银广; 张清然

doi:10.13205/j.hjgc.202503007

生物光/电催化复合系统用于高效CO₂还原的研究进展

doi: 10.13205/j.hjgc.202503007

1. 同济大学环境科学与工程学院, 上海 200092

详细信息

作者简介:
李倩男（1999-），女，博士研究生，主要研究方向为CO₂的生物光/电催化还原。LiQiannan_hj@tongji.edu.cn

通讯作者:
张清然(1991-),男,研究员/副教授,主要研究方向为电化学能量转换系统。qingran_zhang@tongji.edu.cn

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出版历程
- 收稿日期: 2024-12-17
- 录用日期: 2025-01-16
- 修回日期: 2025-01-05
- 网络出版日期: 2025-06-07
- 刊出日期: 2025-03-01

Research progress on bio-photo/electrocatalytic hybrid systems for efficient CO₂ reduction

1. School of Environmental Science and Technology, Tongji University, Shanghai 200092, China

摘要

摘要: 生物光/电催化复合系统综合了生物催化选择性高和光/电催化产率高等优点，能够高效地还原CO₂，并选择性合成绿色高值化学品。对生物光/电催化复合系统研究现状的总结分析，有助于其高效还原CO₂的内在机理，了解研究现状，并针对性地提出未来研究发展方向。首先根据生物光/电催化还原CO₂系统的发展进程对其概念进行介绍，再对生物催化与光/电催化间的电子转移机制进行详细介绍，分别包括直接电子转移和间接电子转移，以明晰CO₂固定合成绿色高值化学品的内在机理。并根据内部电子转移机制对生物光/电催化复合系统进行介绍，生物光/电催化直接耦合系统结构简单、操作方便，但在实际应用中仍受到空间传质、界面电荷传递等问题的限制；生物光/电催化非直接耦合系统能够合成复杂高值产物、具有CO₂扩散效率高等特点。根据上述特性对生物光/电催化复合系统的研究现状进行了总结，为更多复杂的绿色高值化学品的合成提供了条件。最后，针对目前生物光/电催化还原CO₂体系中存在的限制因素及对未来研究方向的发展进行了展望。
- 生物光/电催化 /
- CO₂还原 /
- 资源化 /
- 电子转移 /
- 光敏化材料
Abstract: The capture， utilization， and sequestration of carbon dioxide （CO₂） represent effective strategies for mitigating the greenhouse effect. Synthesizing high-value compounds from CO₂ not only effectively alleviates climate warming but also achieves high-value resource utilization of CO₂. The bio-photo/electrocatalytic hybrid system integrates the advantages of high selectivity in biocatalysis and high productivity in photo/electrocatalysis， enabling efficient reduction of CO₂ and selective synthesis of green high-value chemicals. A summary and analysis of the current research status of bio-photo/electrocatalytic hybrid systems can help clarify the intrinsic mechanisms behind the efficient reduction of CO₂ by these systems， understand the current research landscape， analyze the challenges in current research， and propose targeted directions for future research. Firstly， a systematic understanding of the bio-photo/electrocatalytic reduction of CO₂ systems based on their development process was established. Then， a detailed overview of the electron transfer mechanisms between biocatalysis and photo/electrocatalysis was proposed， including direct and indirect electron transfers， elucidating the intrinsic mechanisms of CO₂ fixation for the synthesis of green high-value chemicals. In biological photo/electrocatalytic composite systems， the electron transfer mechanism is crucial. Electron transfer is divided into direct electron transfer and indirect electron transfer based on whether an electron shuttle is required， and an efficient electron transfer between the electrode and biocatalyst through different pathways is obtained. Subsequently， based on the internal electron transfer mechanisms， the bio-photo/electrocatalytic hybrid system was introduced. With the development of biological photo/electrocatalytic reduction of CO₂ technology， the configuration of biological photo/electrocatalytic composite systems has diversified. Among them， the biological photo/electrocatalytic direct coupling system features a simple structure， easy operation， and high electron transfer efficiency， but it also has issues such as a limited variety of products and biocatalysts. To address these issues， a spatial decoupling strategy has been proposed. The biological photo/electrocatalytic indirect coupling system can synthesize more complex products， screen a wider variety of microorganisms based on the target product， and solve the mismatch between the culture medium of the biocatalytic system and the electrolyte composition of the electrocatalytic system. Inspired by photosynthesis， the photosensitized material-microorganism composite system has emerged. This system utilizes photovoltaic materials to collect light energy and provides electrons or reductive equivalents to microorganisms， mimicking the process of natural photosynthesis. Despite the significant progress in research on biological photo/electrocatalytic reduction of CO₂， many issues and challenges remain. Finally， the paper summarized the current limiting factors in the bio-photo/electrocatalytic CO₂ reduction system and outlooked the future research directions.
- bio-photo/electrocatalysis /
- CO₂ reduction /
- resource utilization /
- electron transfer /
- photosensitized materials

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