alert! The scam of carbon nitride photocatalyst manufacturers

At present, the market is full of all kinds of photocatalytic products that hang sheep's head and sell dog meat, and these products like to disrupt the market under the banner of photocatalytic. Among them, the graphite phase carbon nitride material has recently been often used by manufacturers to package and promote photocatalytic products. In fact, carbon nitride this material is currently unable to prepare excellent photocatalytic products, and there is still a long distance from practical application, mainly due to the following factors.

1. The electron-hole pair generated by carbon nitride material under light is very easy to compound, resulting in extremely low photocatalytic activity; In general, the photocatalytic activity of the material is only 10%-50% of the photocatalytic activity of nano titanium dioxide.

2. The visible light utilization rate of carbon nitride materials is low, only the light with a wavelength of less than 450 nm can be used, and the photocatalytic activity is extremely low, resulting in the overall photocatalytic performance of the material is still very low.

3. Carbon nitride is usually calcined at high temperatures, with large particle size and small specific surface area, which greatly reduces the photocatalytic activity of carbon nitride materials.

4. Even nanoscale carbon nitride is still a lump-like aggregate material, which cannot be uniformly dispersed in water, and will produce a large amount of precipitation after placement, even if shaken and sprayed, it will produce a large number of spots on the surface of the object.

In summary, the so-called carbon nitride photocatalyst products on the market, strictly speaking, the components that play the role of photocatalyst are not carbon nitride materials. In the name of carbon nitride, manufacturers just want to use the name of a scientific material to fool the ignorant crowd. Carbon nitride materials from the needs of practical applications, there are still many specific scientific problems to be solved, but also need a considerable time to achieve.

Here to remind the majority of consumers, vigilant "carbon nitride photocatalyst" this is purely a hoax on the publicity of manufacturers, but also remind everyone not to become a victim of recklessness.