Photocatalytic Oxygen Evolution from Functional Triazine‐Based Polymers with Tunable Band Structures

Conjugated polymers (CPs) are emerging and appealing light harvesters for photocatalytic water splitting owing to their adjustable band gap and facile processing. Herein, we report an advanced mild synthesis of three conjugated triazine‐based polymers (CTPs) with different chain lengths by increasin...

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Published inAngewandte Chemie International Edition Vol. 57; no. 2; pp. 470 - 474
Main Authors Lan, Zhi‐An, Fang, Yuanxing, Zhang, Yongfan, Wang, Xinchen
Format Journal Article
LanguageEnglish
Published Germany Wiley Subscription Services, Inc 08.01.2018
EditionInternational ed. in English
Subjects
artificial photosynthesis
Chemical evolution
Chemical synthesis
conjugated polymers
Harvesters
Kinetics
Optical properties
Oxygen
oxygen evolution
Photocatalysis
Photosynthesis
Polymers
Reaction kinetics
Redox properties
Splitting
Triazine
Water splitting
artificial photosynthesis
water splitting
photocatalysis
oxygen evolution
conjugated polymers
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Summary:Conjugated polymers (CPs) are emerging and appealing light harvesters for photocatalytic water splitting owing to their adjustable band gap and facile processing. Herein, we report an advanced mild synthesis of three conjugated triazine‐based polymers (CTPs) with different chain lengths by increasing the quantity of electron‐donating benzyl units in the backbone. Varying the chain length of the CTPs modulates their electronic, optical, and redox properties, resulting in an enhanced performance for photocatalytic oxygen evolution, which is the more challenging half‐reaction of water splitting owing to the sluggish reaction kinetics. Our results could stimulate interest in these functional polymers where a molecular engineering strategy enables the production of suitable semiconductor redox energetics for oxygenic photosynthesis. Chain length optimization: Conjugated triazine‐based polymers with finely tunable band structures and optical properties have been used as organic semiconductors for photocatalytic O2 evolution. The performance of the polymers can be optimized by altering the linkage structure, demonstrating an emerging and appealing application of polymeric materials in oxygenic photosynthesis.
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ISSN:1433-7851
1521-3773
DOI:10.1002/anie.201711155