| 摘要 |
PURPOSE:To obtain an antimicrobial substance having a low particle size having excellent productivity and resistance to light and heat because of supply of antimicrobial properties to various kinds of structures. CONSTITUTION:Porous titania is used as a carrier and at least a silver component and a zinc component as antimicrobial metal components are adsorbed on the carrier to provide a method of producing an antimicrobial substance and a porous titania gel of the antimicrobial substance. At least the silver component and the zinc component as the antimicrobial metal components are adsorbed on the porous titania having >=40cm<2>/g surface area to give the antimicrobial substance. The amount of the silver component is >=1.5wt.% and that of the zinc component is >=1.0wt.% based on the amount of the carrier. In producing the porous titania by reaction between a solution of titanium trichloride and an ammonia solution, an aliphatic alcohol is present in the system and the aliphatic alcohol is 2-propyl alcohol. |
