Preparation of hierarchically porous PVP/ZIF-8 in supercritical CO2 by PVP-induced defect-formation method for high-efficiency gas adsorption
Separation and Purification Technology(2023)
Abstract
•Hierarchically porous PVP/ZIF-8 is synthesized by PVP-induced defect formation.•It is first attempt to prepare PVP/ZIF-8 with supercritical CO2 as green solvent.•The PVP dosage, temperature and pressure can tune the pore structure of PVP/ZIF-8.•The adsorption capacity of PVP/ZIF-8 can reach up to 2.02 mmol CO2/g sorbent.
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Key words
Hierarchically porous,Supercritical CO2,PVP modulator,Defect formation,CO2 adsorption
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