卟啉
共价键
光催化
材料科学
共价有机骨架
光化学
催化作用
芳基
产量(工程)
组合化学
化学工程
化学
有机化学
烷基
复合材料
工程类
作者
Chandani Singh,Tae Wu Kim,Rajesh K. Yadav,Jin‐Ook Baeg,Vitthal L. Gole,Atul Pratap Singh
标识
DOI:10.1016/j.apsusc.2021.148938
摘要
Photocatalysis is one of the most promising ways for the production of organic chemicals with renewable energy source. For the development of cost-effective and metal-free catalysts, two-dimensional covalent organic framework (COF) has been emerged as a photocatalyst. Here, we report the synthetic method of two-dimensional covalent porphyrin framework (2D CPF) and the fabrication procedure of highly active flexible film. 2D CPF were constructed from tetrakis-(4-amino-phenyl)-porphyrin (TAPP) and tetrakis-(4-nitro-phenyl)-porphyrin (TNPP) monomers through the poly-condensation reaction and the resultant composite showed the superb harvesting ability of solar light, the suitable optical band-gap, and the highly ordered π-electron channels which facilitates efficient charge migrations. The 2D CPF photocatalyst deposited on the thin film was readily applicable to light-induced activation of CH bond between p-position of substituted aryl diazonium salts and heteroarenes, and exhibited the high selectivity (~99%) as well as high production yield. Our results show an experimental benchmark for the use of flexible COF film as a highly practical and efficient solar light responsive photocatalyst for the selective CH bond formation in between substituted aryl diazonium salts and heteroarenes derivatives.
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