Back to Search
Start Over
Electrostatic Attraction-Driven Assembly of a Metal–Organic Framework with a Photosensitizer Boosts Photocatalytic CO2Reduction to CO
- Source :
- Journal of the American Chemical Society; October 2021, Vol. 143 Issue: 42 p17424-17430, 7p
- Publication Year :
- 2021
-
Abstract
- Reducing CO2into fuels via photochemical reactions relies on highly efficient photocatalytic systems. Herein, we report a new and efficient photocatalytic system for CO2reduction. Driven by electrostatic attraction, an anionic metal–organic framework Cu-HHTP(HHTP = 2,3,6,7,10,11-hexahydroxytriphenylene) as host and a cationic photosensitizer [Ru(phen)3]2+(phen = 1,10-phenanthroline) as guest were self-assembled into a photocatalytic system Ru@Cu-HHTP, which showed high activity for photocatalytic CO2reduction under laboratory light source (CO production rate of 130(5) mmol g–1h–1, selectivity of 92.9%) or natural sunlight (CO production rate of 69.5 mmol g–1h–1, selectivity of 91.3%), representing the remarkable photocatalytic CO2reduction performance. More importantly, the photosensitizer [Ru(phen)3]2+in Ru@Cu-HHTPis only about 1/500 in quantity reported in the literature. Theoretical calculations and control experiments suggested that the assembly of the catalysts and photosensitizers via electrostatic attraction interactions can provide a better charge transfer efficiency, resulting in high performance for photocatalytic CO2reduction.
Details
- Language :
- English
- ISSN :
- 00027863 and 15205126
- Volume :
- 143
- Issue :
- 42
- Database :
- Supplemental Index
- Journal :
- Journal of the American Chemical Society
- Publication Type :
- Periodical
- Accession number :
- ejs58033890
- Full Text :
- https://doi.org/10.1021/jacs.1c05839