| Abstract |
The reduction of CO2 into high value-added chemicals and fuels by a photocatalytic technology can relieve energy shortages and the environmental problems caused by greenhouse effects. In the current work, an amino-functionalized zirconium metal organic framework (Zr-MOF) was covalently modified with different functional groups via the condensation of Zr-MOF with 2-pyridinecarboxaldehyde (PA), salicylaldehyde (SA), benzaldehyde (BA), and trifluoroacetic acid (TA), named Zr-MOF-X (X = PA, SA, BA, and TA), respectively, through the post-synthesis modification. Compared with Zr-MOF and Zr-MOF-TA, the introduction of PA, SA, or BA into the framework of Zr-MOF can not only enhance the visible-light harvesting and CO2 capture, but also accelerate the photogenerated charge separation and transfer, thereby improving the photocatalytic ability of Zr-MOF for CO2 reduction. These results indicate that the modification of Zr-MOF with electron-donating groups can promote the photocatalytic CO2 reduction. Therefore, the current work provides an instructive approach to improve the photocatalytic efficiency of CO2 reduction through the covalent modification of MOFs. |
| Authors |
Yuexian Du , Guang′an Jie , Hekun Jia  , Jiahui Liu , Jiahui Wu , Yanghe Fu , Fu‐Min Zhang , Weidong Zhu , Maohong Fan 
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| Journal Info |
Elsevier BV | Journal of Environmental Sciences , vol: 132
, pages: 22 - 30
|
| Publication Date |
10/1/2023 |
| ISSN |
1001-0742 |
Type |
article |
| Open Access |
closed
|
| DOI |
https://doi.org/10.1016/j.jes.2022.10.037 |
| Keywords |
Metal-Organic Frameworks (Score: 0.579318) , CO2 Reduction (Score: 0.57452) , CO2 Capture (Score: 0.546774) , Organic Frameworks (Score: 0.500662) , Photocatalysts (Score: 0.500412)
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