Encapsulating Perovskite Quantum Dots in Iron‐Based Metal–Organic Frameworks (MOFs) for Efficient Photocatalytic CO 2 Reduction

Abstract Improving the stability of lead halide perovskite quantum dots (QDs) in a system containing water is the key for their practical application in artificial photosynthesis. Herein, we encapsulate low‐cost CH 3 NH 3 PbI 3 (MAPbI 3 ) perovskite QDs in the pores of earth‐abundant Fe‐porphyrin based metal organic framework (MOF) PCN‐221(Fe x ) by a sequential deposition route, to construct a series of composite photocatalysts of MAPbI 3 @PCN‐221(Fe x ) ( x =0–1). Protected by the MOF the composite photocatalysts exhibit much improved stability in reaction systems containing water. The close contact of QDs to the Fe catalytic site in the MOF, allows the photogenerated electrons in the QDs to transfer rapidly…

• NN
  National Natural Science Foundation of China

  Awards: 21722104, 21702146, 21790052
• NS
  Natural Science Foundation of Tianjin City

  Award: 17JCJQJC43800
• NK
  National Key Research and Development Program of China