CO2 Adsorption by Several Types of Pillared Montmorillonite Clays

• Main Authors: Ke Wang, Xinlong Yan, Sridhar Komarneni
• Format: Article
• Language: English
• Published: SpringerOpen 2018-06-01
• Series: Applied Petrochemical Research
• Subjects: Montmorillonite; Pillared clays; CO2 adsorption
• Online Access: http://link.springer.com/article/10.1007/s13203-018-0206-9

Abstract CO2 has been found to be the main anthropogenic contributor to the greenhouse gas effect, thus, the development of carbon capture and storage (CCS) technology is extremely urgent. In this work, two kinds of Al2O3 pillared montmorillonite, one ZrO2-pillared montmorillonite and one TiO2 + SiO2 pillared montmorillonite were prepared and characterized by X-ray diffraction (XRD) for phase formation and N2 adsorption–desorption isotherms for surface area and pore-size distribution. Equilibrium adsorption of CO2 gas was measured at 273 K. CO2 adsorption capacities of pillared clays increased with the increase of their pore volume. The uptakes of CO2 by pillared clays were in the range of 0.53–1.18 mmol/g.