Study On Electrowetting Of TiO₂ Film With Different Morphologies

As one of the important properties of solid surface,invasive has a lot of potential applications in surface chemistry,biology,physics and medicine,which has been widely studied.Solid surface invasive is mainly impacted by two factors:one is solid surface free energy;the other is the solid surface roughness.In addition,light,electricity,magnetic,thermal and other infiltrating also have a great influence on the solid surface invasive.The research content and conclusions of this paper is as follows:?1?TiO₂ nanorods array film is prepared by hydrothermal growth method.CdS is deposited in TiO₂ nanorods array film by continuous ion adsorption and reaction cycle soak.Finally,the super hydrophobic TiO₂ nanorod array film is obtained when TiO₂ nanorod array film deposited with CdS is immersed in fluorinated silane ethanol solution.It turned out that with the applied voltage increasing,the apparent contact angle of TiO₂ nanorod array film decreases.When the applied voltage is 0V,the apparent contact angle of the TiO₂ nanorod array film is 152°.When the applied voltage increases to 36V,the apparent contact angle of the film is reduced to 85°.The study also shows that when the applied voltage is the same,the thicker the thickness of the film is,the smaller the decrease amplitude of the apparent contact angle is;the decrease amplitude of CdS deposited TiO₂ nanorod array film contact angle is greater than that of TiO₂ nanorod array film;With the increasing of Potassium chloride solution concentration,the decrease magnitude of the contact angle of TiO₂ nanorod array film increases.?2?TiO₂ hollow spheres film is prepared by hydrothermal growth method.CdS is deposited in TiO₂ hollow spheres film by continuous ion adsorption and reaction cycle soak.Finally,the super hydrophobic TiO₂ hollow spheres film is obtained when TiO₂ hollow spheres film deposited with CdS is immersed in fluorinated silane ethanol solution.It turned out that with the applied voltage increasing,the apparent contact angle of TiO₂ hollow spheres film decreases.When the applied voltage is OV,the apparent contact angle of the TiO₂ hollow spheres film is 150°.When the applied voltage increases to 45V,the apparent contact angle of the film is reduced to 86°.The study also shows that when the applied voltage is the same,the thicker the thickness of the film is,the smaller the decrease amplitude of the apparent contact angle is;the decrease amplitude of CdS deposited TiO₂ hollow spheres film contact angle is greater than that of TiO₂ hollow spheres film;With the increasing of Potassium chloride solution concentration,the decrease magnitude of the contact angle of TiO₂ hollow spheres film increases.?3?TiO₂ nanorod/hollow spheres composite film is prepared.CdS is deposited in TiO₂ nanorod/hollow spheres composite film by continuous ion adsorption and reaction cycle soak.Finally,the super hydrophobic TiO₂ nanorod/hollow spheres composite film is obtained when TiO₂ nanorod/hollow spheres composite film deposited with CdS is immersed in fluorinated silane ethanol solution.It turned out that with the applied voltage increasing,the apparent contact angle of TiO₂ nanorod/hollow spheres composite film decreases.When the applied voltage is 0V,the apparent contact angle of the TiO₂ nanorod/hollow spheres composite film is 150°.when the applied voltage increases to 48V.the apparent contact angle of the film is reduced to 86°.The study also shows that when the applied voltage is the same,the decrease amplitude of CdS deposited TiO₂ nanorod/hollow spheres composite film contact angle is greater than that of TiO₂ nanorod/hollow spheres composite film;With the increasing of Potassium chloride solution concentration,the decrease magnitude of the contact angle of TiO₂ nanorod/hollow spheres composite film increases.