Sorbent
Sorbent
Sorbent (/ˈsɔːrbənt/) is a material used to absorb or adsorb liquids or gases.
Etymology
The term "sorbent" derives from the Latin word "sorbēre", which means "to suck in".
Definition
A sorbent is a material or substance that collects molecules of another substance by adsorption, absorption, or a combination of both processes. Sorbents can be categorized into three main types: physical sorbents, chemical sorbents, and biological sorbents.
Usage
Sorbents are widely used in various fields such as environmental science, medicine, and industry. In medicine, sorbents are used in dialysis to remove toxins from the blood. In environmental science, they are used to clean up oil spills and other pollutants. In industry, they are used in processes such as gas separation and purification.
Related Terms
- Adsorption: The process by which a solid holds molecules of a gas or liquid or solute as a thin film.
- Absorption: The process by which one substance is taken into the body of another substance.
- Dialysis: A process for removing waste and excess water from the blood and is used primarily as an artificial replacement for lost kidney function in people with kidney failure.
- Physical Sorbents: These are materials that store a liquid or gas in its pores, but the stored substance can be released by increasing the temperature or decreasing the pressure.
- Chemical Sorbents: These are materials that hold a liquid or gas by chemical bonds. The stored substance can only be released by a chemical reaction.
- Biological Sorbents: These are materials, usually derived from living organisms, that can bind and hold certain substances.
External links
- Medical encyclopedia article on Sorbent
- Wikipedia's article - Sorbent
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