Functional Conjugated Polymers for CO2 Reduction Using Visible Light.
Functional Conjugated Polymers for CO2 Reduction Using Visible Light.
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DOI：
10.1002/chem.201804496
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发表时间：
2018-10
期刊：
影响因子：
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通讯作者：
Can Yang;Wei Huang;Lucas Caire da Silva;Kai A. I. Zhang;Xinchen Wang
中科院分区：
文献类型：
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作者：
Can Yang;Wei Huang;Lucas Caire da Silva;Kai A. I. Zhang;Xinchen Wang
利用可见光减少二氧化碳是一种高度可持续的生产有价值化学品的方法。有机共轭半导体的功能主导设计具有比无机半导体更多的化学多样性，已经成为实现碳光固定化学的方法。在这里，我们报告了分子工程的三嗪基共轭微孔聚合物捕获，激活和减少CO2与可见光CO。通过改变三嗪环骨架上的有机吸电子单元（苯并噻二唑）和供电子单元（噻吩），同时产生有机供体-受体结以促进电荷分离，来设计CMP的光学带隙。该工程还提供了对CMP的纹理、表面功能和氧化还原电位的控制，以实现CO2到CO环境条件的光诱导转化。
The reduction of CO2 with visible light is a highly sustainable method for producing valuable chemicals. The function-led design of organic conjugated semiconductors with more chemical variety than that of inorganic semiconductors has emerged as a method for achieving carbon photofixation chemistry. Here, we report the molecular engineering of triazine-based conjugated microporous polymers to capture, activate and reduce CO2 to CO with visible light. The optical band gap of the CMPs is engineered by varying the organic electron-withdrawing (benzothiadiazole) and electron-donating units (thiophene) on the skeleton of the triazine rings while creating organic donor-acceptor junctions to promote the charge separation. This engineering also provides control of the texture, surface functionality and redox potentials of CMPs for achieving the light-induced conversion of CO2 to CO ambient conditions.