Activated carbon, also known as activated charcoal, is a highly porous form of carbon with a large surface area. It is created by processing carbon-rich materials, such as coconut shells, wood, or coal, at high temperatures to activate their adsorption properties. Activated carbon is widely used for adsorption and purification processes, including water treatment, air purification, and removal of contaminants from gases and liquids. It is known for its ability to adsorb a wide range of impurities, including toxins, pollutants, and odors.