Abstract:
The most important environmental challenge that world’s face today is to minimize CO2 in the atmosphere because it causes the global warming. Increase in global temperature causes greenhouse gas emission, interruption the volcanic activity and the climate changes. The alarming situation of CO2 level causes to take some serious action to control these climate changes. Various techniques are being utilized to capture CO2. However, Chemical absorption and adsorption are supposed to be the most suitable techniques for post-combustion CO2 capture, but our main focus is on adsorption. The aim of this review is to provide a brief overview on CO2 adsorption by focusing on novel class of adsorbents called metal organic-framework. Metal−organic frameworks shows higher uptake of CO2 at room temperature. In this research synthesis of γCD-MOF MOF, functionalization of γCD-MOF, incorporation of MOFs in membrane and highlight the benefits of piperazine functionalization or the incorporation of MOFs in membrane towards potential application. Amine-functionalized MOFs become more fascinated due to strong interaction between carbondioxide and amine functionalized MOF. Gravimetric CO2 isotherms for γCD-MOF, Piperazine-functionalized γCD-MOF are reported up to 60bar. Both γCD-MOF ,Piperazine-functionalized γCD-MOF and in case of membranes all follows pseudo 2nd order isotherm. The Piperazine-functionalized γCD-MOF confirms comparatively increased rapid uptake capacity of CO2 than that of γCD-MOF and desorption of CO2, and need less energy for regeneration. These results are the complete evidence of piperazine is an efficient amine group for increasing the CO2 uptake capacity.
