Activated carbon is an important material widely used in various fields. It has good adsorption performance and chemical stability, so it is widely used in water treatment, air purification, medicine, food processing and other fields. Activated carbon can be divided into many different classifications based on different preparation methods and application fields.
First of all, from the perspective of preparation method, activated carbon can be divided into two categories: physical adsorption type and chemical adsorption type. Physically adsorbed activated carbon is produced through high-temperature carbonization and activation of carbonized materials (such as wood, fruit shells, etc.). It has a large specific surface area and pore structure and is suitable for the adsorption and separation of gases and solutions. Chemical adsorption activated carbon is further chemically modified on the basis of physical adsorption type to enhance its selective adsorption capacity for specific pollutants. It is often used in wastewater treatment and gas phase purification.
Secondly, according to the size and shape of the particles, activated carbon can be divided into granular activated carbon, powdered activated carbon and fine granular activated carbon. Granular activated carbon has a large surface area and pore structure and is suitable for adsorption treatment of atmospheric and liquid phases; powdered activated carbon has smaller particles and is suitable for wastewater treatment and pharmaceutical fields; fine granular activated carbon is made of granular activated carbon into particles. shape to facilitate the use of fillers in water treatment equipment.
In addition, according to different application fields, activated carbon can also be divided into multiple categories such as activated carbon for water treatment, activated carbon for air purification, activated carbon for medicine, activated carbon for food processing, etc. Different types of activated carbon differ in adsorption performance, high temperature resistance, chemical stability, etc. Therefore, it is necessary to select the appropriate activated carbon product according to actual needs for specific applications.
To sum up, activated carbon has a variety of classification methods, including preparation methods, particle size and shape, and application fields. With the continuous advancement of science and technology and the continuous expansion of application fields, the classification system of activated carbon will continue to be improved, providing more precise selection and guidance for its application in various fields.
