Identification method of titanium oxide loaded on photocatalyst network

First, the detection principle

The presence of titanium oxide compounds is confirmed by the combination of titanium oxide with hydrogen peroxide to form a yellow "[TiO(H2O2)n]2+) complex. Our titanium oxide nano size is small, the surface of titanium oxygen activity is high, easy to combine with hydrogen peroxide, get yellow effect.

Equation: TiO2++nH2O2→[TiO(H2O2)n]2+ (yellow)

2. Test method process

1, powder 3 kinds: one is titanium dioxide (Panzhihua steel), P25, Ming titanium, while dropping hydrogen peroxide to the surface of these powder, take pictures of color, while recording.

2, respectively take the cloth and the corresponding load of photocatalyst cloth, at the same time drop hydrogen peroxide to their surface, take photos of color.

3. Test results

1. Determination of powder samples

Comparison of the three powder samples before and after adding hydrogen peroxide, the darker the color, the smaller the size of the material

2. Measurement of photocatalytic mesh

The photocatalyst fabric is yellow

3. Measurement of other networks

A variety of testing methods and schemes have been tried, because the ceramic mesh itself has a certain light yellow, the effect of dropping hydrogen peroxide is not obvious; The effect of adding hydrogen peroxide is not obvious because of the dark color of nickel mesh and aluminum mesh.

In the future, we will consider other ideas and schemes, and try to make a simple identification method.