Carbazole-based conjugated microporous polymers(CMPs)as a new type of advanced porous material have created tremendous research curiosities in the area of photocatalysis.Besides,introducing boron-containing dyes into ...Carbazole-based conjugated microporous polymers(CMPs)as a new type of advanced porous material have created tremendous research curiosities in the area of photocatalysis.Besides,introducing boron-containing dyes into the CMPs framework was rare but will be rather promising due to their unique properties,including strong electron-accepting capability,efficient catalytic behaviour,significant absorption coefficient and high quantum.Herein,we rationally designed and prepared two new CMPs,i.e.Cz-BF_(2)-CMP and Cz-BPh2-CMP with the combination of carbazole and boron-containing dye as electron donor and acceptor motifs,respectively.Due to the efficient D-A effect between carbazole and boron-dye which not only accelerated the interfacial charge transfer efficiency but also improved the separation capability of photogenerated electron-hole pairs,both CMPs exhibited excellent photocatalytic performances in organic transformations such as green synthesis of benzimidazole in aqueous solution and aerobic oxidation of thioether in EtOH.展开更多
基金We are grateful for financial support from the National Natural Science Foundation of China(No.U1808210)the Natural Science Foundation of Liaoning Province(No.2019-MS-046)the Open Sharing Fund for the Large-scale Instruments and Equipment of Dalian University of Technology(Nos.DUTKFJJ2021086 and DUTKFJJ2021122).
文摘Carbazole-based conjugated microporous polymers(CMPs)as a new type of advanced porous material have created tremendous research curiosities in the area of photocatalysis.Besides,introducing boron-containing dyes into the CMPs framework was rare but will be rather promising due to their unique properties,including strong electron-accepting capability,efficient catalytic behaviour,significant absorption coefficient and high quantum.Herein,we rationally designed and prepared two new CMPs,i.e.Cz-BF_(2)-CMP and Cz-BPh2-CMP with the combination of carbazole and boron-containing dye as electron donor and acceptor motifs,respectively.Due to the efficient D-A effect between carbazole and boron-dye which not only accelerated the interfacial charge transfer efficiency but also improved the separation capability of photogenerated electron-hole pairs,both CMPs exhibited excellent photocatalytic performances in organic transformations such as green synthesis of benzimidazole in aqueous solution and aerobic oxidation of thioether in EtOH.
