Novel photocatalytic antibacterial activity of TiO2 microspheres exposing 100% reactive {111} facets

TiO2 microspheres constructed by well-crystallized faceted nanorods with high aspect ratios expose 100% photocatalytic reactive {111} facets on the spherical surface. The microspheres demonstrated excellent photocatalytic antibacterial activity towards Staphylococcus aureus due to effective suppression of photoinduced electron-hole pair recombination and active TiO2@(OH)-O-center dot core-shell structure.