Metal-organic frameworks with photocatalytic bactericidal activity for integrated air cleaning

Abstract Air filtration has become an essential need for passive pollution control. However, most of the commercial air purifiers rely on dense fibrous filters, which have good particulate matter (PM) removal capability but poor biocidal effect. Here we present the photocatalytic bactericidal properties of a series of metal-organic frameworks (MOFs) and their potentials in air pollution control and personal protection. Specifically, a zinc-imidazolate MOF (ZIF-8) exhibits almost complete inactivation of Escherichia coli ( E. coli ) (>99.9999% inactivation efficiency) in saline within 2 h of simulated solar irradiation. Mechanistic studies indicate that photoelectrons trapped at Zn + centers within ZIF-8 via…

• NN
  National Natural Science Foundation of China

  Awards: 21490570, 21674012, 21801017, 2165102, 21674012, 21490570, Z181100004418001, 21471018
• BI
  Beijing Institute of Technology