Activated carbon

Activated carbon, also called activated charcoal, attracts and holds onto other substances.

Activated carbon (also called activated charcoal) is a highly porous substance that adsorbs many other substances. Like charcoal or biochar, it is made from carbon-rich material made through pyrolysis to create carbon char. The char is then treated chemically or physically to develop an interconnected series of holes or pores inside the carbon to significantly increase its surface area to increase its adsorption properties.