Abstract
Visible-light-driven photoreduction of CO 2 to energy-rich chemicals in the presence of H 2 O without any sacrifice reagent is of significance, but challenging. Herein, Eosin Y-functionalized porous polymers (PEosinY-N, N=1–3), with high surface areas up to 610 m 2 g −1 , are reported. They exhibit high activity for the photocatalytic reduction of CO 2 to CO in the presence of gaseous H 2 O, without any photosensitizer or sacrifice reagent, and under visible-light irradiation. Especially, PEosinY-1 derived from coupling of Eosin Y with 1,4-diethynylbenzene shows the best performance for the CO 2 photoreduction, affording CO as the sole carbonaceous product with a production rate of 33 μmol g −1 h −1 and a selectivity of 92 %. This work provides new insight for designing and fabricating photocatalytically active polymers with high efficiency for solar-energy conversion.
Original language | English |
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Pages (from-to) | 632-636 |
Number of pages | 5 |
Journal | Angewandte Chemie - International Edition |
Volume | 58 |
Issue number | 2 |
DOIs | |
State | Published - Jan 8 2019 |
Externally published | Yes |
Funding
We thank the National Natural Science Foundation of China (Nos. 21673256, 21533011) and the Chinese Academy of Sciences (QYZDY-SSW-SLH013-2).
Funders | Funder number |
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National Natural Science Foundation of China | 21673256, 21533011 |
Chinese Academy of Sciences | QYZDY-SSW-SLH013-2 |
Keywords
- CO
- CO reduction
- H O oxidation
- photoreduction
- porous organic polymer