期刊
INORGANIC CHEMISTRY
卷 58, 期 13, 页码 8517-8524出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.inorgchem.9b00824
关键词
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资金
- National Basic Research Program of China [2017YFA0303504]
- National Natural Science Foundation of China [21573106]
- Priority Academic Program Development of Jiangsu Higher Education Institutions
It is deemed as a desired approach to utilize solar energy for the conversion of CO2 into valuable products, and the majority of the MOFs-based photocatalytic reductions of CO2 have focused on formic acid (HCOOH) production with an organic solvent as the reaction medium. Herein, we report a solvent-free reaction route for the photoreduction of CO2 catalyzed by Fe-MOFs, namely, NH2-MIL-53(Fe) [(Fe(OH)(NH2-BDC)1 center dot G, NH2-MIL-88B(Fe) [Fe-3 O(H2O)(3) (NH2-BDC)(3)]Cl center dot G, and NH2-MIL-101(Fe) [Fe3O(H2O)(3) (NH2-BDC)(3)]Cl center dot G (NH2-BDC = 2-aminoterephthalic acid; G = guest and/or solvent molecules). Compared with the orthodox reaction route, the present out-of-the-way photocatalytic reduction of CO2 with superior selectivity to CO occurs at the gas-solid interface. The reaction procedure is environmentally friendly and provides a possibility to address the CO2 emission problem. Importantly, NH2-MIL-101(Fe) shows the highest photocatalytic activity among these Fe-MOFs due to its efficient charge separation and electron transfer.
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