Activated carbon, also called activated charcoal, is a form of carbon processed to have small, low-volume pores that increase the surface area. Activated carbon is usually derived from charcoal and is sometimes used as biochar.it is referred to as activated coal. Activated coke is derived from coke. Activated carbon is used in methane and hydrogen storage,air purification, decaffeination, gold purification, metal extraction, water purification, medicine, sewage treatment, air filters in gas masks and respirators, filters in compressed air, teeth whitening, and many other applications. Activated carbon is carbon produced from carbonaceous source materials such as bamboo, coconut husk, willow peat, wood, coir, lignite, coal, and petroleum pitch. Activated carbon is used to treat poisonings and overdoses following oral ingestion. Tablets or capsules of activated carbon are used in many countries as an over-the-counter drug to treat diarrhea, indigestion, and flatulence.
