Sol–gel preparation of polymethylsilsesquioxane aerogel membranes for CO2 absorption fluxes in membrane contactors

Development of monolithic adsorbent via polymeric sol–gel process for low-concentration CO2 capture

“…Furthermore, water is positive to CO 2 adsorption capacities of amine-based adsorbents due to the formation of carbamate intermediates [20,21]. Recently, investigations have focused on using aerogels as new supports to form amine-based CO 2 adsorbents, due to their unique physical properties such as low densities, high surface areas and porosities [25][26][27][28][29][30]. Moreover, the microstructures and elemental compositions of aerogels can be tailored using solution chemistry via a process known as the sol-gel method [31][32][33].…”

Hydrophobic fluorocarbon-modified silica aerogel tubular membranes with excellent CO2 recovery ability in membrane contactors

“…As a result, they have been widely investigated for applications in drug release [12], thermal insulation [13,14], catalysis [15] and adsorption [16]. In our previous work, mesoporous silica aerogels were successfully coated on a macroporous Al 2 O 3 plate membrane support for CO 2 absorption in membrane contactor applications for the first time [17][18][19]. The as-prepared silica aerogel plate membranes can effectively prevent wetting of the membrane by aqueous amine solution and can continuously absorb CO 2 for at least four days.…”

Increasing the Performance of Vacuum Membrane Distillation Using Micro-Structured Hydrophobic Aluminum Hollow Fiber Membranes

“…The hydrophilic nature of inorganic ceramic membranes also renders them inapplicable to membrane contactors. Inorganic ceramic membranes have potential in this area because of their outstanding thermal and chemical resistance and high mechanical strength [15][16][17][18][19]. The production of a hydrophobic, porous ceramic membrane is key to its success.…”