Adsorption
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Adsorption is the adhesion of atoms, ions, or molecules from a gas, liquid, or dissolved solid to a surface. This process creates a film of the adsorbate on the surface of the adsorbent. This process
Activated carbon is used as an adsorbent
Activated carbon nitrogen isotherm showing a marked microporous type I behavior
Silica gel adsorber for NO2, Fixed Nitrogen Research Laboratory, ca. 1930s
Zeolite
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Zeolites are a group of several microporous, crystalline aluminosilicate minerals commonly used as commercial adsorbents and catalysts. They mainly consist of silicon, aluminium, and oxygen, and have
Adsorption
…classes: Oxygen-containing compounds – are typically hydrophilic and polar, including materials such as silica gel, limestone (calcium carbonate), and zeolites. Carbon-based compounds – are typically hydrophobic and non-polar, including materials such as activated carbon and graphite…
Natrolite needles from Hohentwiel (Typelocality)
Zeolite exhibited in the Estonian Museum of Natural History
Natrolite from Poland
Synthetic zeolite