FABRICATION AND CHARACTERIZATION OF TITANIA-NANOSHEET FILM BY ELECTROPHORETIC DEPOSITION TECHNIQUE
October 1-6, 2017
Two-dimensional nanosheets, such as graphene and some oxides, have been investigated because of their unique functional properties. Titania is known as a key material showing a photocatalytic activity as well as a superhydrophilicity by irradiation of ultraviolet light. General preparation method for titania nanosheets has already been reported by Sasaki et al. in 1998. On the other hand, an electrophoretic deposition (EPD) process of colloidal particles in a suspension has been used in various systems in order to create some functional materials and/or devices. In this work, we demonstrate a fabrication of film consisting of titania nanosheet by the simple EPD technique.
Titania-nanosheet aqueous suspension was prepared according to the previous report . Dried titania nanosheet powder was obtained to avoid electrolysis of water during EPD process. The dried titania nanosheet powder dispersed in acetone was used as the suspension for the EPD process. The EPD was carried out a constant d.c. voltage mode of 20 V for 300 s. An indium-tin oxide (ITO)-coated glass and a stainless steel plate was used as the anode and cathode, respectively. The two electrodes placed parallel to each other in the suspension. The distance of the electrodes was fixed at 5 mm. The deposition area was set to be 13 mm x 8 mm. The electrophoretically-deposited film was characterized by scanning electron microscope (SEM).
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Jun-ichi Hamagami, Taketo Nakagawa, Minoru Osada, Thi Kim Ngan NGUYEN, and Tetsuo Uchikoshi, "FABRICATION AND CHARACTERIZATION OF TITANIA-NANOSHEET FILM BY ELECTROPHORETIC DEPOSITION TECHNIQUE" in "Electrophoretic Deposition VI: Fundamentals and Applications", Aldo R. Boccaccini, Institute of Biomaterials, University of Erlangen-Nuremberg, Germany Omer van der Biest, Department of Metallurgy and Materials Engineering, Katholieke Universiteit Leuven, Belgium James Dickerson, Consumer Reports, USA Tetsuo Uchikoshi, National Institute for Materials Science, Japan Eds, ECI Symposium Series, (2017). https://dc.engconfintl.org/electrophoretic_vi/47