Synthesis and effect of metal–organic frame works on CO2 adsorption capacity at various pressures: A contemplating review

Ayesha Rehman, Sarah Farrukh, Arshad Hussain and Erum Pervaiz

Energy & Environment, 2020, vol. 31, issue 3, 367-388

Abstract: The most important environmental challenge that the world is facing today is the control of the quantity of CO 2 in the atmosphere, because it causes global warming. Increase in the global temperature results in greenhouse gas emission, interruption of the volcanic activity, and climatic changes. The alarming rise of the CO 2 level impels to take some serious action to control these climatic changes. Various techniques are being utilized to capture CO 2 . However, chemical absorption and adsorption are supposed to be the most suitable techniques for post-combustion CO 2 capture, but the main focus is on adsorption. The aim of this study is to provide a brief overview on the CO 2 adsorption by a novel class of adsorbents called the metal–organic framework. The metal–organic framework is a porous material having high surface area with high CO 2 adsorption capacity. The metal–organic frameworks possess dynamic structure and have large capacity to adsorb CO 2 at either low pressure or high pressure due to its cavity size and surface area. Adsorption of CO 2 in the metal–organic framework at various pressures depends upon pore volume and heat of adsorption correspondingly. In this review, different synthesis methods of the metal–organic framework such as slow evaporation, solvo thermal, mechanochemical, electrochemical, sonochemical, and microwave-assisted synthesis are briefly described as the structure of the metal–organic frameworks are mostly dependent upon synthesis techniques. In addition to this, different strategies are discussed to increase the CO 2 adsorption capacity in the metal organic-framework.

Keywords: CO2 capture; metal–organic framework; synthesis method; high and low pressure adsorption; CO2 adsorption (search for similar items in EconPapers)
Date: 2020
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Persistent link: https://EconPapers.repec.org/RePEc:sae:engenv:v:31:y:2020:i:3:p:367-388

DOI: 10.1177/0958305X19865352

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