Carbon dioxide adsorbent based on rich amines loaded nano-silica

Adsorptive removal of carbon dioxide using polyethyleneimine loaded glass fiber in a fixed bed

“…12, the PEI-loaded GF exhibited good cyclic CO 2 adsorption-desorption performance under the experimental conditions. By calculation, the regeneration efficiency was ∼90% (similar to literature [17,44,45]) even after 10 cycles, indicating reversible CO 2 adsorption-desorption chemistry and the thermal stability of PEI at 100 • C. SEM and FTIR analyses ( Fig. 3(c)) was before and after the regeneration cycles.…”

“…The solid supports are normally porous materials with a high surface area and large pore volume (e.g., porous silica [16,17], activated carbon [18,19], zeolites [20,21], metal-organic frameworks (MOFs) [22,23] and some other materials, such as bentonite [24] and activated alumina [25]). …”

Preparation and characterization of multi-walled carbon nanotubes impregnated with polyethyleneimine for carbon dioxide capture

“…Recently, Jin et al reported that aminofunctionalized CNTs exhibited high CO 2 capture capacity with physical and chemical adsorption [21]. The chemical adsorption of amino-functional groups improves the selectivity as well as CO 2 adsorption capacity [22].…”

Amine–silica composites for CO2 capture: A short review

“…Ullah et al [25] modified SBA-15 with an ammonium hydroxide solution to introduce NH 2 functional groups within the pores of the materials to produce modified SBA-15. Du et al [26] prepared amine-tethered silica using polyacrylic acid (PAA) as the bridge between the amine and silica. PAA was first grafted onto the surface of the nano-silica through an esterification reaction to introduce carboxyl acid groups.…”