Fudamental study on photocatalytic film

Influence of surface topogrphy

Abstract

This study aims to clarify the influence of surface topography on the photocatalytic reaction of titanium dioxide film surface. As a first step, the optimum conditions in making a thin film using titanium dioxide powder were evaluated and several films with several kinds of surface roughnesses were prepared. And, the influence of surface topography on the wettabilty of titanium dioxide films were evaluated. As a result, it was confirmed that the wettability increases with increasing both the surface roughness and actual surface area.