Abstract
This review focuses on the use of metal–organic frameworks (MOFs) for adsorbing gas species that are known to weaken the thermal self-regulation capacities of Earth’s atmosphere. A large section is dedicated to the adsorption of carbon dioxide, while another section is dedicated to the adsorption of other different gas typologies, whose emissions, for various reasons, represent a “wound” for Earth’s atmosphere. High emphasis is given to MOFs that have moved enough ahead in their development process to be currently considered as potentially usable in “real-world” (i.e., out-of-lab) adsorption processes. As a result, there is strong evidence of a wide gap between laboratory results and the industrial implementation of MOF-based adsorbents. Indeed, when a MOF that performs well in a specific process is commercially available in large quantities, economic observations still make designers tend toward more traditional adsorbents. Moreover, there are cases in which a specific MOF remarkably outperforms the currently employed adsorbents, but it is not industrially produced, thus strongly limiting its possibilities in large-scale use. To overcome such limitations, it is hoped that the chemical industry will be able to provide more and more mass-produced MOFs at increasingly competitive costs in the future.
Highlights
Since its first historical traces, mankind has never had to face global challenges such as those happening in the contemporary age
McEwen et al performed a similar investigation [72], focusing on the sub-atmospheric pressure range and finding that the CO2 /CH4 and CO2 /N2 selectivities of zeolitic imidazolate frameworks (ZIFs)-8 were significantly lower than those of a much cheaper benchmark adsorbent such as the 13X zeolite. These conclusions were further confirmed by Danaci et al, who investigated the potential suitability of ZIF-8 for CO2 /CH4 separation under pressure swing adsorption (PSA) conditions, finding that this metal–organic frameworks (MOFs) has insufficient selectivity for CO2 capture from natural gas [37]
The poor results provided by as-is ZIF-8 have pushed investigations toward functionalization routes that could significantly enhance the CO2 adsorption performances of this adsorbent
Summary
Since its first historical traces, mankind has never had to face global challenges such as those happening in the contemporary age. Climate change is mainly dependent on the energy transport phenomena occurring between Earth and outer space Such energy transport phenomena are strongly related to the physicochemical status of Earth’s atmosphere. The energy balance of our planet is being modified in such a way that its average temperature is abnormally increasing (global warming) This temperature increase is already causing anomalous climatic events, which are unprecedented in human history and recall prehistorical periods of planetary crisis such as Late Quaternary extinctions [2]. During the last 15 years, microporous metal–organic frameworks (MOFs) have shown great potential for improving the performances of different industrially relevant, adsorption-based applications [5]. This review will focus on the use of MOFs for adsorbing gas species, which are known to weaken the thermal self-regulation capacities of Earth’s atmosphere. (b) Cu-BTC; (c) Mg-MOF-74; (d) ZIF-8; (e) PCN-250 (Fe3 ); (f) UiO-66
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
