光催化
化学
选择性
蒽
金属有机骨架
吸收(声学)
光化学
可见光谱
金属
合理设计
催化作用
化学工程
纳米技术
有机化学
材料科学
光电子学
吸附
复合材料
工程类
作者
Yujie Zhao,Yang Cui,Lexing Xie,Kangshuai Geng,Jie Wu,Xiangru Meng,Hongwei Hou
出处
期刊:Inorganic Chemistry
[American Chemical Society]
日期:2023-01-11
卷期号:62 (3): 1240-1249
被引量:6
标识
DOI:10.1021/acs.inorgchem.2c03970
摘要
Photocatalytic reduction of CO2 to value-added chemicals is known to be a promising approach for CO2 conversion. The design and preparation of ideal photocatalysts for CO2 conversion are of pivotal significance for the sustainable development of the whole society. In this work, we integrated two functional organic linkers to prepare a novel metal organic framework (MOF) photocatalyst {[Co(9,10-bis(4-pyridyl)anthracene)0.5(bpda)]·4DMF} (Co-MOF). The existence of anthryl and amino groups leads to a wide range of visible light absorption and efficient separation of photogenerated electrons. To extend the lifetime of photogenerated electrons in the photocatalytic system, we modified Co-MOF particles onto g-C3N4. As expected, Co-MOF/g-C3N4 composites exhibited an ultrahigh selectivity (more than 97%) in the photocatalytic process, and the highest CO production rate (1824 μmol/g/h) was 7.1 and 27.2 times of Co-MOFs and g-C3N4, respectively. What's more, we also discussed the reaction mechanism of the Co-MOF/g-C3N4 photocatalytic CO2 reduction, and this work paves the pathway for designing photocatalysts with ideal CO2 reduction performance.
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