Hosseini & Lashaki (2023): A comprehensive evaluation of amine-impregnated silica materials for direct air capture of carbon dioxide

Amirjavad Ahmadian Hosseini, Masoud Jahandar Lashaki IN: Separation and Purification Technology, 325, 124580, https://doi.org/10.1016/j.seppur.2023.124580

The potential of amine-impregnated silica materials for Direct Air Capture (DAC) of CO₂ was investigated. A commercially available mesoporous silica was impregnated with tetraethylenepentamine (TEPA) and polyethylenimine (PEI) with molecular weights of 600, 1200, and 1800, each using amine loadings of 10–50 wt%. The materials were screened for equilibrium CO₂ uptake, amine efficiency, and adsorption kinetics at temperatures of 25–35 °C.

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