MOFs (Metal-Organic Frameworks) composite nanosheet photocatalytic material with sandwich structure as well as preparation method and application of MOFs composite nanosheet photocatalytic material

The invention discloses an MOFs (Metal-Organic Frameworks) composite nanosheet photocatalytic material with a sandwich structure as well as a preparation method and application of the MOFs composite nanosheet photocatalytic material. The ZIF-8/Ti3C2MXene/ZIF-8-X catalyst is prepared by compounding a two-dimensional conductive nanosheet and a metal organic framework material and calcining in a tubular furnace in an air atmosphere, the activity and the stability of the material are improved, and the photocatalytic sterilization efficiency of the material on escherichia coli in simulated sunlight within 90 minutes is 6.63 log10 CFU mL ; the invention further prepares a photocatalytic sterilization membrane based on ZIF-8/Ti3C2MXene/ZIF-8-X, the photocatalytic sterilization membrane is applied to a flowing photocatalytic drinking water disinfection system, and the membrane filter has the advantages of high photocatalytic sterilization efficiency, few metal ion residues, good long-term cycle stability and the