LIU Ruping ¹, YU Kangtai ²

(1.Wuhan Material- protected Academy, Wuhan 430030; 2.Wuhan University of Technology, Wuhan 430070)

Abstract:  Fe₂O₃- Al₂O₃ - SiO₂- TiO₂ antibacterial nanometer humidity s ensitive thin film on Al₂O₃ substrate was prepared by the sol- gel method, and the antibacterial action of the film is dis cussed.Surface nanos cale topography and microstructure of membranes were investigated by SEM and AFM. The produced nanometer antibacterial thin films have many characteristics, such as wide range of antibacterial effects, high efficiency, no poison to people, health, and so on. The experiment results revealed high sensitivity of humidity s ensor made of nanometer Fe₂O₃- Al₂O₃ - SiO₂- TiO₂ ceramic thin film.

Keywords: sol- gel processing, ceramic membranes, antibacterial property, humidity sensitive