Enhancing CO₂ adsorption capacity of ZIF-8 by synergetic effect of high pressure and temperature.

ABSTRACT: Metal-organic frameworks (MOFs) and zeolitic imidazolate frameworks (ZIFs) are promising porous materials for adsorption and storage of greenhouse gases, especially CO₂. In this study, guided by the CO₂ phase diagram, we explore the adsorption behavior of solid CO₂ loaded with ZIF-8 framework by heating the sample under high pressures, resulting in a drastic improvement in the CO₂ uptake. The behavior of CO₂ under simultaneous high temperature (T) and pressure (P) conditions is directly monitored by in situ FTIR spectroscopy. The remarkable enhancement in CO₂ adsorption capability observed can be attributed to the synergetic effect of high T and P: high temperature greatly enhances the transport property of solid CO₂

SUBMITTER: Jiang S 

PROVIDER: S-EPMC10579389 | biostudies-literature | 2023 Oct

REPOSITORIES: biostudies-literature