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The Fluid Systems Engineering and Management Blog

by Swagelok Northern California

Improving a ZIF's Carbon-Capture Capabilities

by Jeff Hopkins, on 8/10/18 1:00 PM

Postsynthesis modification of common MOF improves its CO2 uptake and selectivity

Koç University researchers have drastically improved the adsorption of CO2 in a common zeolitic imidazolate framework (ZIF) that will make it much more useful for carbon capture and natural gas purification. (ZIFs are a subset of MOFs, metal-organic frameworks.) 

The research team focused on the hydrophobic ZIF-8. When they treated it with a hydrophilic imidazolium-based ionic liquid (solvent) in which CO2 is highly soluble, a chemically selective shell formed on the ZIF’s exterior. The new material’s adsorption of CO2 is nearly six times as high as in untreated ZIF-8.

Read the article in Chemical & Engineering News→

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