aktiivihiilenä

Aktiivihiili, also known as activated charcoal, is a form of carbon processed to have small, low-volume pores that increase the surface area available for adsorption or chemical reactions. The manufacturing process involves heating carbon-rich materials, such as wood, peat, or coconut shells, to high temperatures and then activating them using steam or chemicals. This activation process creates a highly porous structure.

The primary use of activated charcoal is for adsorption, a process where molecules adhere to the surface of the charcoal. This property makes it effective in purification processes, including water and air filtration, where it can remove impurities, odors, and toxins. In medicine, activated charcoal is used to treat poisonings and overdoses by adsorbing the harmful substances in the digestive tract, preventing their absorption into the bloodstream. It is also found in some over-the-counter products for gas relief and teeth whitening.

Activated charcoal's effectiveness is dependent on its pore size distribution and surface area. Different activation methods yield charcoals with varying characteristics, making them suitable for specific applications. Its non-reactive nature and high adsorption capacity make it a versatile material in various industrial, medical, and consumer applications.