Confinement and characterization of deep eutectic solvent based on choline chloride:alcohol into nanoporous silica for CO2 capture

Significant Improvement in CO2 Absorption by Deep Eutectic Solvents as Immobilized Sorbents: Computational Analysis

“…From this perspective, the hydrophilicity of a solid substrate enhances the CO 2 solubility, and the thickness of the DES coated on the surface correlates with the degree of enhancement of absorption. In line with experimental studies, ,,− the calculated results confirm that the CO 2 solubility in glyceline is higher than that in ethaline. Furthermore, the experimental data of solubility (based on the molar fraction of CO 2 in DESs) in bulk ethaline (glyceline) examined by Leron et al were obtained to be between 0.143 (0.291) and 0.379 (0.663) at pressures ranging from 2.76 to 5.86 MPa and at 303 K. , The performance of the DES confined into nanoporous silica has been previously evaluated for CO 2 capture and glyceline (1:2), and it showed higher CO 2 solubility compared to ethaline (1:2), which was 0.047 and 0.036 at room temperature and atmospheric pressure, respectively. , The performance of CO 2 capture using glyceline DES-functionalized activated carbon has also been examined, and the CO 2 absorption was found to be 0.012 .…”

“…Furthermore, the experimental data of solubility (based on the molar fraction of CO 2 in DESs) in bulk ethaline (glyceline) examined by Leron et al were obtained to be between 0.143 (0.291) and 0.379 (0.663) at pressures ranging from 2.76 to 5.86 MPa and at 303 K. 17,18 The performance of the DES confined into nanoporous silica has been previously evaluated for CO 2 capture and glyceline (1:2), and it showed higher CO 2 solubility compared to ethaline (1:2), which was 0.047 and 0.036 at room temperature and atmospheric pressure, respectively. 49,50 The performance of CO 2 capture using glyceline DES-functionalized activated carbon has also been examined, and the CO 2 absorption was found to be 0.012. 51 From this point of view, the CO 2 absorption in the immobilized DESs of the current study is clearly comparable with that in the previous investigations.…”

Review and Perspectives for Effective Solutions to Grand Challenges of Energy and Fuels Technologies via Novel Deep Eutectic Solvents

“…Graphene oxide + DESs membranes were also developed by Mubasir et al, confirming suitable permeability, durability, and selectivity. Similarly, DESs confined in graphite or rutile, nanoporous or mesoporous silica, , laminated MXene, metal organic frameworks, or immobilized on polymeric membranes, probed how the performance of DESs can be improved through interaction and confinement with suitable materials, thus allowing the development of membranes for CO 2 capture.…”