Coal-based activated carbon particles play an important role in the adsorption of coal tar, and nowadays they have become the main material in this field. This article will analyze the adsorption characteristics of coal-based activated carbon particles on coal tar.
First，coal-based activated carbon particles have high adsorption capacity. Generally speaking, the coal-based activated carbon particles have larger specific surface area and pore size, which can increase the physical adsorption capacity between them. Second, the microporous structure of the coal-based activated carbon particles is conducive to the adsorption of coal tar, because the microporous structure can not only reduce the adhesive force between them, but also can increase the contact between them. Third, the hydrophobicity of coal-based activated carbon particles is beneficial for the adsorption of coal tar.
In addition, the surface chemistry of coal-based activated carbon particles affects the adsorption of coal tar. Studies have shown that the addition of acid groups on the surface of coal-based activated carbon can enhance the adsorption capacity of coal tar. On the contrary, the addition of alkaline groups will reduce the adsorption capacity of coal tar. Furthermore, the surface hydrophilicity of coal-based activated carbon particles is also closely related to the adsorption of coal tar.
At present, the adsorption of coal tar mainly relies on the surface properties of coal-based activated carbon particles. Therefore, in order to enhance the adsorption capacity of coal-based activated carbon particles, its surface properties should be studied and improved.
In summary, coal-based activated carbon particles have significant adsorption capacity to coal tar, which is mainly related to their surface properties. It is necessary to improve the surface properties of coal-based activated carbon particles in order to increase the adsorption capacity of coal tar.
