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CO 2 ‐Triggered Switchable Hydrophilicity of a Heterogeneous Conjugated Polymer Photocatalyst for Enhanced Catalytic Activity in Water
Author(s) -
Byun Jeehye,
Huang Wei,
Wang Di,
Li Run,
Zhang Kai A. I.
Publication year - 2018
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.201711773
Subject(s) - photocatalysis , conjugated system , polymer , catalysis , aqueous solution , materials science , photochemistry , chemical engineering , amine gas treating , visible spectrum , chemistry , organic chemistry , optoelectronics , engineering
Water compatibility for heterogeneous photocatalysts has been pursued for energy and environmental applications. However, there exists a trade‐off between hydrophilicity and recyclability of the photocatalyst. Herein, we report a conjugated polymer photocatalyst with tertiary amine terminals that reversibly binds CO 2 in water, thereby generating switchable hydrophilicity. The CO 2 ‐assisted hydrophilicity boosted the photocatalytic efficiency in aqueous medium with minimum dosage. When CO 2 was desorbed, the photocatalyst could be simply regenerated from reaction media, facilitating the repeated use of photocatalyst. Hydrophilicity/hydrophobicity control of the polymer photocatalyst was successfully showcased through a variety of organic photoredox reactions under visible‐light irradiation in water.