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Eosin Y‐Functionalized Conjugated Organic Polymers for Visible‐Light‐Driven CO 2 Reduction with H 2 O to CO with High Efficiency
Author(s) -
Yu Xiaoxiao,
Yang Zhenzhen,
Qiu Bing,
Guo Shien,
Yang Peng,
Yu Bo,
Zhang Hongye,
Zhao Yanfei,
Yang Xinzheng,
Han Buxing,
Liu Zhimin
Publication year - 2019
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201812790
Subject(s) - eosin y , reagent , photocatalysis , conjugated system , polymer , visible spectrum , eosin , photosensitizer , photochemistry , selectivity , irradiation , chemistry , materials science , catalysis , organic chemistry , optoelectronics , medicine , staining , physics , pathology , nuclear physics
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.