Photocatalytic algal inhibitor and algal control method

Abstract

To provide an anti-algal agent that exhibits higher anti-algal properties than conventional agents, is highly transparent, and does not impair the aesthetic appearance when applied to building exterior materials, for example. [Solution] An algal agent comprising 1) titanium oxide particles in which copper is solid-dissolved, and 2) molybdenum element or a molybdenum compound and / or tungsten element or a tungsten compound, and further comprising titanium oxide particles in which copper is not solid-dissolved; A method for preventing algae on the surface of a member, comprising the steps of applying the algae-preventing agent to the surface of the member and drying the surface of the member.

Claims

1. 1) Titanium oxide particles in which copper is dissolved, 2) Molybdenum element or molybdenum compounds and / or tungsten element or tungsten compounds An algaecide containing [the specified ingredient].

2. Furthermore, the anti-algal agent according to claim 1, further comprising titanium oxide particles in which copper is not solid-dissolved.

3. The algal agent according to claim 1, wherein the amount of copper dissolved in titanium oxide particles is 2 to 200 in molar ratio (Ti / Cu) with titanium.

4. The algal agent according to claim 1, wherein the amount of molybdenum (compound) or tungsten (compound) is 10 to 30,000 in molar ratio (Ti / Mo or W) with titanium, respectively.

5. A method for preventing algae on the surface of a member, comprising the steps of applying an algaecide according to any one of claims 1 to 4 to the surface of the member, and drying the surface of the member.

6. The method for preventing algae formation on the surface of a component according to claim 5, further comprising the step of irradiating the surface of the component with ultraviolet light after the step of drying the surface of the component.

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