METHOD FOR PRODUCING RUTILE-TYPE TITANIUM OXIDE HAVING (001) CRYSTAL PLANE

摘要

Provided is a method for producing a rutile-type titanium oxide having high photocatalytic activity. The method for producing a rutile-type titanium oxide is characterized in that a rod-shaped rutile-type titanium oxide having (001) (110) and (111) crystal planes is obtained by performing hydrothermal treatment for two or more hours on a tetravalent titanium compound in an aqueous medium at a reaction temperature of 110°C to 220°C, under a pressure at least as high as the saturated vapor pressure at the reaction temperature. Titanium tetrachloride is preferred as the tetravalent titanium compound, and the concentration of the tetravalent titanium compound in the aqueous medium is preferably within the range of 1.5 to 17.0 wt% (titanium equivalent).