Design of Nanostraws in Amine-Functionalized MCM-41 for Improved Adsorption Capacity in Carbon Capture.

ABSTRACT: Polymeric amine encapsulation in high surface area MCM-41 particles for CO₂ capture is well established but has the drawback of leaching out the water-soluble polymer upon exposure to aqueous environments. Alternatively, chemical (covalent) grafting amine functional groups from an alkoxysilane such as 3-aminopropyltriethoxysilane (APTES) on MCM-41 offer better stability against this drawback. However, the diffusional restriction exhibited by the narrow uniform MCM-41 pores (2-4 nm) may impede amine functionalization of the available silanol groups within the inner mesoporous core. This leads to incomplete amine functionalization and could reduce the CO₂ adsorption capacity in such materials. Our concept to improve access to the MCM-41 interior is based on the incorpor

SUBMITTER: Ajumobi O 

PROVIDER: S-EPMC10441579 | biostudies-literature | 2023 Aug

REPOSITORIES: biostudies-literature