Definition, Meaning & Synonyms

adsorbent

noun

/ˌædˈzɔːrbənt/

Definition

A substance that has the capacity to attract and hold molecules from a gas, liquid, or dissolved solid onto its surface.

Examples

Activated carbon is a common adsorbent used in air and water purification.
In the lab, silica gel is often employed as an adsorbent for separating mixtures.

Meaning

Adsorbent refers to a material that captures particles or molecules on its surface through a process called adsorption, which is different from absorption where substances are taken into the bulk of the material.