二酸化チタン光触媒繊維の作製とその性質

概要

論文の詳細を見る
Fibrous titanium dioxide(TiO2)photocatalysts were synthesized with heat treatment(500-1000℃)in the atmoshere or in a nitrogen gas after impregnating sewing threads with a Ti solution perpared from titanium alkoxide.The obtained TiO2 fibers were evaluated by performing measurements of the X-ray diffraction pattern and the photo-degradation activity test of methylene blue solution.The TiO2 fibers having a relatively higher strength could be successfully synthesized using cotton fibers for the material of threads.The anatase-type TiO2 fibers were synthesized at the heat treatment temperature of 500℃,the anatase-type TiO2 fibers mixed with a small amount of the rutile-type ones were synthesized at the heat treatment temperature of 700℃,and only the rutile-type ones were synthesized at the heat treatment temperature of 1000℃.In addition,the strength of the fibers has been successfully slightly improved using the Ti-Si solution prepared by adding silicon alkoxide to the Ti solution.The results of the photo-degradation activity test showed that the TiO2 fibers have a high photocatalytic activity under the ultraviolet light and also under the visible light.
2010-03-01