Synthesis Optimization of MCM-41 for CO2 Adsorption Using Simplex-centroid Design

摘要: There is a growing concern on the relationship between anthropogenic carbon dioxide and climate changes. A promising approach adsorption technology using mesoporous MCM-41 materials that can be easily synthesized to depict structures adequate flow of gas. The aim this study was improve synthesis cationic surfactant mixtures apply resulting CO2 adsorption. To end, simplex-centroid design applied optimize from seven by hydrothermal method surfactants hydrophobic chains different sizes. used were tetradecyltrimetylammonium bromide, cetyltrimethylammonium trimethyloctadecylammonium bromide their mixture at ratios 1:1 1:1:1. investigated thegravimetric 298 K pressures up 40 bar. materials, labelled C17, C19, C21, C17C19, C19C21, C17C21 C17C19C21, characterized XRD, FTIR, TG SEM showed significant differences in structure as well mass response models best combination resulted C17C19 sample, which presented synergistic interactions reaching highest value (0.62 g CO2/g adsorbent), compared other samples.