H₂O-prompted CO₂ capture on metal silicates in situ generated from SBA-15.

ABSTRACT: A series of metal silicates, NaMSi₁₀Ox (M = Cu, Mn and Ni), were prepared by in situ doping of metals into mesoporous SBA-15 under a hydrothermal process, displaying a continuous framework of SiO₄ structure with a narrow pore size distribution. These metal silicate materials were tested for CO₂ adsorption behavior in the absence and presence of water. The results exhibited that the effect of H₂O on the CO₂ capture capability of metal silicates depends on the types of metal inserted into SBA-15. Compared to the dry condition, H₂O addition enhances CO₂ uptake dramatically for NaCuSi₁₀Ox by 25%, and slightly for NaNiSi₁₀Ox (∼10%), whereas little effect is shown on NaMnSi₁₀Ox. T

SUBMITTER: Li M 

PROVIDER: S-EPMC9055863 | biostudies-literature | 2020 Aug

REPOSITORIES: biostudies-literature