Mesoporous Silica Skin on Clay Nanotubes for Carbon Capture.

ABSTRACT: Amine-based adsorbents are considered extremely promising candidates for their efficacy in CO₂ capture. In this study, we explore the enhancement of CO₂ adsorption capacity through the development of a hierarchically porous material containing a mesoporous silica coating on halloysite nanotubes (HNTs), a naturally occurring clay material. The generation of a mesoporous MCM-41 skin on HNTs increases the surface area from about 60 to 400 m²/g while maintaining structural integrity. This significant increase in the surface area helps enhance amine loading. The synthesis of the MCM-41/HNT (MHNT) composite particles was achieved via an aerosol-assisted method, allowing rapid coating formation of a spindle-shaped skin on the HNT external surface and leading to a

SUBMITTER: Wang B 

PROVIDER: S-EPMC12506593 | biostudies-literature | 2025 Jun

REPOSITORIES: biostudies-literature