The fabrication strategies and enhanced performances of metal-organic frameworks and carbon dots composites: State of the art review

Metal-organic frameworks (MOFs) with large specific surface area, considerable pore volume, control-lable structure, and high concentration of active metal sites have been applied widely in researches like catalysis and sensing. However, potential applications of MOFs in both photocatalysis and luminescence sensors are facing major challenges arising from their severe charge recombination, low utilization of so-lar energy, low quantum yield, limited charge transfer between the metal ions/clusters and the ligand. Recent studies revealed that rational introduction of carbon dots (CDs) with excellent optical properties, unique quantum confinement and high conductivity can greatly enhance the functions of MOFs. In this paper, typical synthesis methods of these CD-MOF composites as well as their potential applications in photocatalysis and sensing are reviewed with emphasis. Representative examples of these CD-MOF com-posites are discussed, and key features and advantages of CD-MOF composites that will facilitate future applications are highlighted. (c) 2022 Published by Elsevier B.V. on behalf of Chinese Chemical Society and Institute of Materia Medica, Chinese Academy of Medical Sciences.

Automated summary

Metal-organic frameworks (MOFs) have been widely applied in catalysis and sensing due to their large specific surface area, control-lable structure, and high concentration of active metal sites. However, their potential applications in photocatalysis and luminescence sensors face challenges such as charge recombination, low solar energy utilization, low quantum yield, and limited charge transfer. Recent studies have shown that the introduction of carbon dots (CDs) can greatly enhance the functions of MOFs. This paper reviews the synthesis methods of CD-MOF composites and their potential applications in photocatalysis and sensing, with emphasis on representative examples and key features.