Activated carbon, also called activated charcoal, is a form of carbon commonly used to filter contaminants from water and air, among many other uses. It is processed (activated) to have small, low-volume pores that increase the surface area available for adsorption (which is not the same as absorption) or chemical reactions.Due to its high degree of microporosity, one gram of activated carbon has a surface area in excess of 3,000 m2 (32,000 sq ft) as determined by gas adsorption. Charcoal, before activation, has a specific surface area in the range of 2.0 – 5.0 m2/g. An activation level sufficient for useful application may be obtained solely from high surface area. Further chemical treatment often enhances adsorption properties.Activated carbon are characterized by their pore size. Pore size have been classified into three type. Macropores [d = > 25 nm], Mesopores [d = 2-25 nm], and a large number of micropores [d =< 2 nm]. Micropores are developed during activation and contribute mainly to the surface area. Macropores do not add much to the surface area but provide passageway for the adsorbate to the micropores where adsorption does occur.Activated carbon is carbon produced from carbonaceous source materials such as bamboo, coconut husk, wood, coal etc.
For more Information:Contact Us
