| abstract |
Disclosed is a photocatalyst dispersion liquid in which aggregation of particles is suppressed and solid-liquid separation hardly occurs. A photocatalyst dispersion includes titanium oxide particles, tungsten oxide particles, phosphoric acid (salt), and a dispersion medium, and the phosphoric acid (salt) content is 0.001 with respect to the titanium oxide particles. It is -0.2 mol times. In such a method for producing a photocatalyst dispersion, titanium oxide particles are dispersed in a dispersion medium in which phosphoric acid (salt) is dissolved, and the obtained titanium oxide particle dispersion and tungsten oxide particles are mixed. [Selection figure] None |