Superhydrophilicity thin film

Furthermore, titanium oxide thin films have been found to exhibit a unique and useful function (i.e., a superhydrophilic property). Usually, the contact angle of a water droplet on a surface is 50 -70° therefore, metal oxide surfaces become cloudy when water is dropped on them or if there is moisture in the atmosphere. However, under UV light irradiation of the titanium oxide surfaces, this contact angle of water droplets becomes smaller, even reaching zero (superhydrophil-icity), its extent depending on the UV irradiation time and irradiation intensity. Thus, under UV light irradiation, titanium oxide thin-film surfaces never become... 

Dohshi, S., Takeuchi, M., and Anpo, M. Photoinduced superhydrophilic properties of Ti-B hinary oxide thin films and their photocatalytic reactivity for the decomposition of NO. J. Natwsci. Nanotech. 2001,1, 337. 

Anpo, M., Dohshi, S., and Takeuchi, M. Preparation of Ti/B binary oxide thin films by the ionized cluster beam (ICB) method Their photocatalytic reactivity and photoinduced superhydrophilic properties. J. Ceram. Process. Res. 2002, 34, 258. 

Mirshekari M, Azimirad R, Moshfegh AZ. Superhydrophilic stability enhancement of RF co-sputtered Ti Sij Oj thin films in dark. Appl Surf Sci 2010 256(8) 2500-6. 

Si02 coating and an outer Ti02 coating. The self-cleaning effect is related to the photoinduced superhydrophilicity of thin nanoporous Ti02 films. 

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