Fabrication of Porous Titania Using Anisotropic Particles

Takashi KOJIMA, Rie SUZUKI, Naofumi UEKAWA, Kazuyuki KAKEGAWA
2007 Journal of the Ceramic Society of Japan  
Porous materials were prepared by stacking needle-like titania particles. The uniform, needle-like titania particles were synthesized by hydrothermal treatment of titanium hydroxide gel containing ethylenediamine. A seeding technique controlled the particle size of them. The obtained particles were dispersed in aqueous solutions with various pH values and vacuum-filtered to form bulk materials. Porous materials with uniform microstructure were obtained when the pH of the suspension was adjusted
more » ... ension was adjusted to the value suitable for generating electrostatic repulsion between dispersed titania particles. Changing the size of component particles also controlled the pore size of the porous titania.
doi:10.2109/jcersj.115.160 fatcat:vy3pitpa4zetjjohbxmbo5lc4e