CO 2 ‐Triggered Switchable Hydrophilicity of a Heterogeneous Conjugated Polymer Photocatalyst for Enhanced Catalytic Activity in Water | Zendy

Byun Jeehye | Zendy; Huang Wei | Zendy; Wang Di | Zendy; Li Run | Zendy; Zhang Kai A. I. | Zendy

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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.

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