Ultrathin titanium oxide nanosheets film with memory bactericidal activity
Gen Wang1, Zheng Xing2, Xiangkang Zeng2
1School of Water Resources and Environment, China University of Geosciences (Beijing), Beijing 100083, China and Department of Chemical Engineering, Faculty of Engineering, Monash University, Clayton, VIC 3800, Australia. xiwang.zhang@monash.edu.
Abstract:
An ultrathin photocatalytic film of titanium oxide was fabricated using two dimensional (2D) titanium oxide nanosheets (TONs) as building blocks. The as-prepared film was found be able to store photoelectrons upon UV irradiation due to the reduction/oxidation of T4+/Ti3+ on the 2D TONs. Post-illumination discharging of the stored electrons produced antibacterial radicals, and as a result, the as-prepared film showed memory bactericidal activity toward E. faecalis and E. coli in the dark.
