TREATMENT MATERIAL FOR DELETERIOUS SUBSTANCE AND MANUFACTURING METHOD THEREOF

摘要

PROBLEM TO BE SOLVED: To provide a treatment material for a deleterious substance that absorbs ultraviolet light necessary for photocatalyst activity and that hardly undergoes peeling of a formed transition metal oxide film while maintaining sufficient sterilizing property. SOLUTION: A titanium dioxide film 5 inactivates Escherichia Coli or HIV which is incoporatable into a substance to be treated such as components of blood plasma. The control of the film thickness of the titanium dioxide film 5 becomes easy by forming the titanium dioxide film 5 on the surface of a substrate 6 having ultraviolet light penetrability by means of the atmospheric pressure CVD process. When the film thickness of titanium dioxide film 5 is from 1 to 7μm, the titanium oxide film 5 is able to absorb ultraviolet light necessary for photocatalyst activity and is difficult to be stripped from the substrate 6 while maintaining sufficient antibacterial and sterilizing properties.