Rice husk derived Aminated Silica for the efficient adsorption of different gases.

ABSTRACT: In this present work, we successfully prepared aminated silica (ASiO₂) from rice husk ash (RHA) and functionalized with 3-aminopropyltriethoxysilane (APTES). Physical and chemical properties of the synthesized material were investigated by various techniques SEM-EDX, XPS, FTIR, TGA. The surface area of RHA was 223 m²/g, while for ASiO₂ was 101 m²/g. Molecular level DFT calculations revealed that the functionalization of ASiO₂ resulted in a significant decrease in the HOMO-LUMO energy gap, a reduction in hardness, and a consequent increase in charge transfer characteristics. The adsorption behavior at low pressure (1 atm.) of aminated silica on different gases CO₂, CH₄, H₂, and N₂ at temperatu

SUBMITTER: Bakdash RS 

PROVIDER: S-EPMC7658350 | biostudies-literature | 2020 Nov

REPOSITORIES: biostudies-literature