Regulating Utilization Efficiency of the Photogenerated Charge Carriers by Constructing Donor–π–Acceptor Polymers for Upgrading Photocatalytic CO 2 Reduction
| Autor: | Ruixia Liu, Ruihu Wang, Hong Zhong, Haowei Lv, Jinqing Chen |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
chemistry.chemical_classification
Anthracene Materials science General Chemical Engineering Rational design 02 engineering and technology Polymer Conjugated system 010402 general chemistry 021001 nanoscience & nanotechnology Photochemistry 01 natural sciences Electron transport chain Acceptor 0104 chemical sciences chemistry.chemical_compound General Energy chemistry Photocatalysis Environmental Chemistry General Materials Science Charge carrier 0210 nano-technology |
| Zdroj: | ChemSusChem. 14:2749-2756 |
| ISSN: | 1864-564X 1864-5631 |
| Popis: | Photocatalytic CO2 reduction offers a promising approach for managing global carbon balance. The smooth delivery of the photoexcited electrons to the active sites without the extra photosensitizers is still challenging. Herein, a series of donor-π-acceptor conjugated organic polymers (COPs) were produced using anthracene, cobalt-coordinated bipyridyl, and benzene as donor, acceptor, and π linker units, respectively. The introduction of phenyl linker significantly improved the activities of photocatalytic CO2 reduction upon visible light illumination. Structure-performance relationship examinations uncovered that donor-π-acceptor structure promotes mobility of charge carriers and utilization efficiency on the catalytically active sites, resulting in high photocatalytic activity and durability for CO2 photoreduction. The in-depth insights into the electron transport processes open new perspectives for further optimization and rational design of photoactive polymers with high efficiency for solar-energy conversion. |
| Databáze: | OpenAIRE |
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