Eiichi Kojima

TL;DR: In this paper, the photogeneration of a highly amphiphilic (both hydrophilic and oleophilic) titanium dioxide surface was reported, and the unique character of this surface was ascribed to the microstructured composition of hydrophilicity of the phases, produced by ultraviolet irradiation.

TL;DR: In this article, the authors reported the details of the photoconvertible surface wettability of TiO2 surfaces and showed that the formation of a microstructured composite between hydrophilic and oleophilic phases, which results from the photogenerated Ti defects at definite sites, is considered to explain the unique feature.

TL;DR: In this article, a method of preventing or reducing fogging of a surface of a composite when subjected to humid conditions includes providing a composite with a surface, which includes a substrate and a photocatalytic surface layer.

TL;DR: In this paper, the photocatalytic layer may have a structure in which fine particles fill interstices defined between the particles, or a structure where no fine particles can fill the spaces between particles, and a metal may be fixed or not fixed to surfaces of the particles.

TL;DR: In this article, a method of making the surface of a base material ultrahydrophilic which comprises the step of coating the surface with a layer containing photocatalytic semiconductor material such as titania, and photoexciting the material to adjust the angle of contact of the above layer with water to about 10° or less.