Activated Carbon Fiber Adsorption Properties

Activated carbon fiber is a new type of adsorption functional material. It is made of lignin, cellulose, phenolic fiber, polypropylene fiber, asphalt fiber, etc. as raw materials through carbonization and activation. Compared with activated carbon, it has a unique microporous structure, higher outer surface and specific surface area, a variety of functional groups, and a smaller average pore diameter. It is obtained in the fields of wastewater, waste gas treatment, and water purification through physical adsorption and physical and chemical adsorption. widely used.

The micropore volume of fibrous activated carbon accounts for about 90% of the total pore volume, and most of its micropore diameters are around 1 nm, with no excessive pores or macropores. The specific surface area is generally 600~1200m2/g, and can even reach 3000m2/g. The desorption and regeneration rate of activated carbon fiber is fast, the time is short, and its performance remains unchanged, which is better than activated carbon. Like activated carbon, activated carbon fibers are non-selective in adsorption and are mainly used to adsorb organic pollutants. They are generally used for comprehensive wastewater treatment in refineries.