The structure of the Activated charcoal

Activated carbon is a porous solid carbon black. Early from wood, hard shells or animal bones made by carbonization and activation, such as by switching from coal crushing, forming or with uniform grain by carbonization and activation of coal production. Main ingredients for carbon, and contain a small amount of oxygen, hydrogen, sulfur, nitrogen, chlorine and other elements. Common active carbon, the specific surface area of between 500 ~ 1700 m2 / g. Has a strong adsorption performance, for the purpose of an industrial adsorbent.

Activated carbon with microcrystalline structure. The arrangement of basic microcrystalline is completely irregular. Microcrystalline height is 0.9 ~ 1.2 nm; Width (if it is circular cross section for the diameter) is about 2.0 ~ 2.3 nm. Its size is often due to the high temperature treatment significantly increased. Usually, the activated carbon is produced by the activation process of microporous, transition hole or holes. According to the international union of pure and applied chemistry (IUPAC 1972) regulation, microporous effective radius less than 2 nm. The effective radius transition hole in 2 ~ 50 nm range; Macroporous effective radius than 50 nm.

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