Synthesis of ordered Ca- and Li-doped mesoporous silicas for H₂ and CO₂ adsorption at ambient temperature and pressure.

ABSTRACT: Ca- and Li-doped mesoporous silicas have been prepared successfully using cetyltrimethylammonium bromide (CTAB) surfactant in basic media. Sol-gel synthesis and hydrothermal treatment produced highly ordered mesoporous Ca and Li loaded silica particles. The MCM-41 type mesostructures, the porosity, the pore sizes as well as the surface area of Ca- and Li-silicas have been thoroughly investigated using small angle X-ray scattering (SAXS), transmission electron microscopy (TEM), and N₂ sorption analysis. Samples prepared with varying amounts of Li and Ca loading have been further analyzed using inductive coupled plasma-atomic emission spectroscopy (ICP-AES) and field-emission scanning electron microscopy (FESEM) with an energy dispersive spectral attachment (EDS), which confirmed

SUBMITTER: Pal N 

PROVIDER: S-EPMC9087321 | biostudies-literature | 2018 Oct

REPOSITORIES: biostudies-literature