金属铁络合物光催化二氧化碳还原  

Photocatalytic Reduction of Carbon Dioxide with Iron Complexes

作　　者：唐晨柳 邹云杰 徐明楷 凌岚[1,2] Chenliu Tang;Yunjie Zou;Mingkai Xu;Lan Ling(State Key Laboratory for Pollution Control and Resource Reuse,College of Environmental Science and Engineering,Tongji University,Shanghai 200092,China;State Key Laboratory of Photocatalysis on Energy and Environment,Fuzhou University,Fuzhou 350116,China)

机构地区：[1]污染控制与资源化研究国家重点实验室,同济大学环境科学与工程学院,上海200092 [2]福州大学能源与环境光催化国家重点实验室,福州350116

出　　处：《化学进展》2022年第1期142-154,共13页Progress in Chemistry

基　　金：国家自然科学基金优秀青年基金项目(No.21822607);能源与环境光催化国家重点实验室开放课题(No.SKLPEE-KF201701)资助。

摘　　要：二氧化碳(CO_(2))光催化还原技术因兼具解决能源和全球变暖问题的潜力而受到关注。金属铁络合物作为分子型催化剂,具有价格低廉、量子效率高、结构可调控和选择性好等优势,表现出优异的CO_(2)光催化还原性能,成为CO_(2)光催化还原领域的研究热点。本文综述了近年来基于金属铁络合物光催化二氧化碳还原研究进展。介绍了铁金属络合物(如:铁卟啉、铁多吡啶、五齿铁配合物)CO_(2)均相光催化还原体系,总结了体系的构成以及作用机理等,着重关注了体系的催化效率和产物的选择性。此外,综述了以半导体纳米材料/量子点作为光敏剂,金属铁络合物作为催化剂的非均相催化体系的研究进展。最后,对该领域未来的研究方向和所面临的挑战做出展望。Photocatalytic CO_(2)reduction for fuel production has attracted much attention due to its potential for simultaneously solving energy and global warming problems. As a molecular catalyst, earth-abundant and eco-friendly iron complexes take the advantages of adjustable structure, rich valence, and easy synthesis, exhibiting good CO_(2)photocatalytic reduction performance, and hence have attracted much attention in the field of CO_(2)photocatalytic reduction. This review focuses on the recent progress in photocatalytic reduction of CO_(2)based on iron complexes. First, the homogeneous photocatalytic CO_(2)reduction systems using iron complex as catalyst, including iron porphyrin, iron polypyridine and iron pentadentate complex, are summarized. Visible-light-driven CO_(2)reduction system is generally composed of three basic components: photosensitizer for absorption of visible light, catalyst for catalytic reduction of CO_(2), and sacrificial electron donors for providing electrons in reduction reaction. Beyond catalytic efficiency, CO_(2)photoreduction is a multi-electron transfer process boosted by the catalysts and inevitable competition with hydrogen evolution is a general issue for molecular catalysis of the CO_(2)-to-CO conversion, therefore the selectivity of the products is an important indicator. The selectivity and efficiency could be tuned by changing the ligand of iron complex, photosensitizer and sacrificial electron donors. Moreover, the mechanisms for the homogeneous photocatalytic CO_(2)reduction, including catalyst activation and reduction process, are deciphered in detail. Second, the recent works of heterogeneous catalytic systems, which combine semiconductor nanomaterials/quantum dots with metal iron complexes as catalysts, are introduced. Considering the superior stability and fairly strong light absorption capacity of inorganic materials to the organic counterparts, the solid nanomaterials can be used as the photosensitizers to incorporate with the molecular catalysts. At the end, the current

关 键 词：CO_(2)光催化还原 铁卟啉 铁络合物 均相光催化 人工光合作用 

分 类 号：O643.3[理学—物理化学] O614.81[理学—化学]