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Carbazole–triazine based donor–acceptor porous organic frameworks for efficient visible-light photocatalytic aerobic oxidation reactions

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Abstract

We report the synthesis of a series of carbazole–triazine based donor–acceptor (D–A) POFs and their photocatalytic activities for aerobic oxidation reactions. The simultaneous introduction of a carbazole-based electron donor and a triazine-based electron acceptor in D–A POFs stabilizes the charge transfer state and enables an efficient triplet–triplet energy transfer to generate 1O2. Meanwhile, systematic variation of the D–A distance results in the tunable photoredox properties and consequently the efficiency for generation of reactive oxygen species (ROSs). Upon visible light excitation, all three D–A POFs exhibit excellent capability to promote three aerobic oxidations: sulfide oxidation, oxidative amine coupling, and Mannich reactions. This systematic study validates the design principle of D–A POFs as high-performance photo-oxidation catalysts with wide substrate scope and excellent stability and recyclability.

Graphical abstract: Carbazole–triazine based donor–acceptor porous organic frameworks for efficient visible-light photocatalytic aerobic oxidation reactions

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Publication details

The article was received on 05 Jun 2018, accepted on 10 Jul 2018 and first published on 11 Jul 2018


Article type: Paper
DOI: 10.1039/C8TA05329D
Citation: J. Mater. Chem. A, 2018, Advance Article
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    Carbazole–triazine based donor–acceptor porous organic frameworks for efficient visible-light photocatalytic aerobic oxidation reactions

    J. Luo, J. Lu and J. Zhang, J. Mater. Chem. A, 2018, Advance Article , DOI: 10.1039/C8TA05329D

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