Ultrafine Pd nanoparticles loaded benzothiazole-linked covalent organic framework for efficient photocatalytic C-C cross-coupling reactions.
Ultrafine Pd nanoparticles loaded benzothiazole-linked covalent organic framework for efficient photocatalytic C-C cross-coupling reactions.
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超细钯纳米颗粒负载苯并噻唑连接的共价有机框架用于高效光催化C-C交叉偶联反应
作者：
提出了以苯并噻唑连接的共价有机骨架（TTT-COF）为基底制备金属复合光催化剂Pd NPs@TTT-COF的策略。首先，苯并噻唑连接的TTT-COF具有上级的化学稳定性和光响应性。此外，由于Pd NPs与苯并噻唑基团中的S之间的结合相互作用，在Pd NPs@TTT-COF中观察到更细的颗粒尺寸（2.01 nm）和更均匀的分布。Pd NPs@TTT-COF在光催化C-C交叉偶联反应中表现出优异的上级效率和可重复使用性。机理研究表明，TTT-COF上的光生电子和空穴在这些反应中起着重要作用。苯并噻唑连接的共价有机框架具有特性负载Pd纳米颗粒用于光催化C-C交叉偶联反应。
We proposed a strategy that a benzothiazole-linked covalent organic framework (TTT-COF) was used as a substrate to prepare metal composite photocatalyst Pd NPs@TTT-COF. Firstly, benzothiazole linked TTT-COF exhibited superior chemical stability and photoresponse. Moreover, a finer particle size (2.01 nm) and more uniform distribution of Pd NPs were observed in Pd NPs@TTT-COF owing to the binding interaction between Pd NPs and S in benzothiazole groups. Pd NPs@TTT-COF exhibited superior efficiency and reusability in photocatalytic C–C cross-coupling reactions. Mechanism study suggested that photogenerated electrons and holes on TTT-COF played important roles in these reactions. Benzothiazole-linked covalent organic framework with characteristic properties loaded Pd nanoparticles for photocatalytic C–C cross-coupling reactions.
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