Eosin Y-Functionalized Conjugated Organic Polymers for Visible-Light-Driven CO 2 Reduction with H 2 O to CO with High Efficiency

Xiaoxiao Yu, Zhenzhen Yang, Bing Qiu, Shien Guo, Peng Yang, Bo Yu, Hongye Zhang, Yanfei Zhao, Xinzheng Yang, Buxing Han, Zhimin Liu

Research output: Contribution to journalArticlepeer-review

180 Scopus citations

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 languageEnglish
Pages (from-to)632-636
Number of pages5
JournalAngewandte Chemie - International Edition
Volume58
Issue number2
DOIs
StatePublished - Jan 8 2019
Externally publishedYes

Funding

We thank the National Natural Science Foundation of China (Nos. 21673256, 21533011) and the Chinese Academy of Sciences (QYZDY-SSW-SLH013-2).

FundersFunder number
National Natural Science Foundation of China21673256, 21533011
Chinese Academy of SciencesQYZDY-SSW-SLH013-2

    Keywords

    • CO
    • CO reduction
    • H O oxidation
    • photoreduction
    • porous organic polymer

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