Principle of Activated Carbon Adsorption

1. Activated carbon, relying on its unique pore structure, is a type of microcrystalline carbon material mainly made of carbon containing materials with a black appearance, developed internal pore structure, large specific surface area, and strong adsorption capacity. There are a large number of invisible micropores in activated carbon materials. One gram of activated carbon material contains micropores, which can have a surface area of up to 800-1500 square meters when unfolded, and even higher for special purposes. That is to say, in a rice sized activated carbon particle, the internal surface area of the micropores may be equivalent to the size of a living room. It is precisely these highly developed pore structures, like human capillaries, that give activated carbon excellent adsorption performance.

2. The force of mutual adsorption between molecules is also called "van der Waals attraction". Although the speed of molecular motion is affected by factors such as temperature and material, it always moves continuously in the microenvironment. Due to the mutual attraction force between molecules, when a molecule is captured by the pores of activated carbon and enters the pores of activated carbon, the mutual attraction between molecules will cause more molecules to be continuously attracted until the pores of activated carbon are filled.