Method for producing a transition metal compound-supported titanium oxide suspension, and a manufacturing method of the transition metal compound-supported titanium oxide

摘要

Contains a transition metal compound-supported titanium oxide crystal, the content of ionic impurities is extremely low, excellent response to visible light, to provide a transition metal compound-supported titanium oxide suspension to exhibit excellent photocatalytic activity . transition metal compound-supported titanium oxide suspensions of the invention, the transition metal compound in crystalline titanium oxide, which are supported, the average aspect ratio (major axis / minor axis) of 1.5 or more transition metal compounds a suspension of the supported titanium oxide, when containing the transition metal compound-supported titanium oxide 4% by weight or more, the electric conductivity of the supernatant liquid of the suspension is equal to or less than 300 microseconds / cm . Examples of the crystalline titanium oxide, crystal face (110) and rutile-type titanium oxide having a crystal face (111) and / or a crystal plane (110), rutile having a crystal face (111) and crystal plane (001) titanium is preferred.