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Photocatalytic Oxygen Evolution from Functional Triazine‐Based Polymers with Tunable Band Structures
Author(s) -
Lan ZhiAn,
Fang Yuanxing,
Zhang Yongfan,
Wang Xinchen
Publication year - 2018
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.201711155
Subject(s) - photocatalysis , polymer , redox , conjugated system , photochemistry , materials science , oxygen evolution , water splitting , band gap , oxygen , triazine , semiconductor , chemical engineering , chemistry , nanotechnology , catalysis , polymer chemistry , organic chemistry , electrochemistry , optoelectronics , electrode , engineering , metallurgy , composite material
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.