Preparation of amine functionalized UiO-66, mixing with aqueous N-Methyldiethanolamine and application on CO2 solubility.

In this research, UiO-66-NH 2 was synthesized with solvothermal method and analyzed by XRD, SEM, BET, TGA and IR spectroscopy to understand its crystalline structure, morphology, thermal stability, and porous structure. Mass fraction of 0.1% of UiO-66-NH 2 added to aqueous solution of mass fraction of 40% N-Methyldiethanolamine (MDEA). Measurement of zeta potential showed that UiO-66-NH 2 particles are stable in aqueous mass fraction of 40% MDEA. The solubility of carbon dioxide investigated in aqueous solution of mass fraction of 40% MDEA and the prepared mixture of mass fraction of 0.1% of UiO-66-NH 2 nanofluid in aqueous solution of mass fraction of 40% MDEA at temperatures of 303.15, 313.15, 323.15, and 333.15 K, and carbon dioxide pressures up to 2300 kPa. Results showed that addition of UiO-66-NH 2 nanoparticles to the MDEA solution, increased capacity of CO 2 absorption of solution up to 10%. The solubility of CO 2 increased with increasing partial pressure and decreased with increasing temperature for both systems. [ABSTRACT FROM AUTHOR]