TiO_(2) films,showing superhydrophilic behavior,are prepared by electron beam evaporation.Atomic force microscopy and the contact angle measurement were performed to characterize the morphology and wetting behavior of...TiO_(2) films,showing superhydrophilic behavior,are prepared by electron beam evaporation.Atomic force microscopy and the contact angle measurement were performed to characterize the morphology and wetting behavior of the TiO_(2) films.Most studies attribute the wetting behavior of TiO_(2) surfaces to their physical characteristics rather than surface chemistry.These physical characteristics include surface morphology,roughness,and agglomerate size.We arrange these parameters in order of effectiveness.Surface morphologies are demonstrated to be the most important.TiO_(2) films with particular morphologies show superhydrophilic behavior without external stimuli,and these thin films also show stable anti-contamination properties during cyclical wetting and drying.展开更多
基金Supported by the National Natural Science Foundation of China(60908021)the National Key Technologies R&D Program(2011BAF02B00)+2 种基金the National Science Instrument Important Project(2011YQ15004)Singapore National Research Foundation(CRP Award No NRF-G-CRP 2007-01)the Leading Academic Discipline Project of Shanghai Municipal Government(S30502).
文摘TiO_(2) films,showing superhydrophilic behavior,are prepared by electron beam evaporation.Atomic force microscopy and the contact angle measurement were performed to characterize the morphology and wetting behavior of the TiO_(2) films.Most studies attribute the wetting behavior of TiO_(2) surfaces to their physical characteristics rather than surface chemistry.These physical characteristics include surface morphology,roughness,and agglomerate size.We arrange these parameters in order of effectiveness.Surface morphologies are demonstrated to be the most important.TiO_(2) films with particular morphologies show superhydrophilic behavior without external stimuli,and these thin films also show stable anti-contamination properties during cyclical wetting and drying.