Enhanced absorption of CO2 by Peridotite ? MOF

CO2 is the main cause of global warming and climate change on earth. Humans are contributing mainly to this increase by burning tons of fossil fuel and other anthropogenic activities. In the Sultanate of Oman, oil and natural gas related activities have the most important shares of the nation's gross domestic product (GDP) and are the primary cause of greenhouse gas (GHG) emissions within the country e.g CO2 emissions. There has been much work done on CO2 capturing and storage using peridotite rocks which is one of the sultanate of Oman natural recourse found extensively in Oman crust especially in the Samail Ophiolite, which is the largest ophiolite in the world. Mineralization of CO2 and natural carbonation of peridotite by weathering and low-temperature alteration is one of the studies done. However, these techniques for mineral carbonation have many disadvantages. These approaches may be too expensive in financial terms and energy expenditures. In this study, we aim to investigate the possible enhancement of CO2 uptake performance on peridotite rocks by improving its surface by using a MOF-based shell and subsequent functionalization of the surface of adsorbent using basic groups. It seems that the synthesis of a thin layer of Cu/Zn-based MOF on the surface of peridotite rocks will improve the adsorption kinetics. The porous structure and high capturing ability of MOFs can easily adsorb CO2 and increase its concentration around the peridotite rocks. The surface of MOF-combined rocks will be modified by amino groups. Which will remarkably enhance both the adsorption capacity and the adsorption kinetic.