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1. Overview

Photocatalyst is the compound of Photo (Light) and Catalyst that means a catalyst using light. It literally processes catalyst reaction using light as energy source. There are many kinds of photocatalysts such as TiO₂, ZnO and CdS. Among these, mainly TiO₂(Anatase) is being used because it can receive enough energy from sunshine as it can react at 387.5nm, chemically stable, is active to lights and non-toxic.

 

2. Photocatalyst Application Field

 

3. Hydrophilicity of TiO₂ Photocatalyst

 
- Mechanism of hydrophilic reaction
 

As you can see in the above picture, when water moles in the air approach to the surface of TiO₂ under the light, they become attached physically. Because of electron pair resistance principle, hydrogen atom comes to the center of oxygen atom. When other water moles approach to this structure, they will be combined by hydrogen combination. Because of this mechanism, photocatalyst will have water hydrophilicity.
 
- Ultra hydrophilicity of photocatalyst
 

When applying thin photocatalyst film on the surface of glass or tiles, the surface of the materials will have hydrophilicity. It will be free from dust or other contaminants and the loose materials will be wiped away with water drops. Therefore, there will not be dirty marks or contaminants on the surface even after it is dry.

 
4. Particle Size and Distribution
 
 
5. Specs
 
Items
NMTS-0050
NMTS-0100
NMTS-0200
Solid Contents
(wt%)
5
10
20

Particle Size
(nm)

〈 30
〈 40
〈 50
Structure
Anatase
Anatase
Anatase
pH
2∼7
Viscosity (cps)
1∼8
 
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