Synthesis of Stable Tetraethylenepentamine-Functionalized Mesocellular Silica Foams for CO₂ Adsorption

Table 1

Physicochemical properties and CO₂ adsorption performance of parent MSF and various TEPA-MSF-x samples.

Sample	V; (cm^3 g^−1)^a	S; (m^2 g^−1)^b	D; (nm)^c	CO2 uptake; (mg g^−1)
MSF	2.34	634	29	—
TEPA-MSF-0.5	0.89	209	18	37.5
TEPA-MSF-1.0	0.56	134	17	53.2
TEPA-MSF-2.0	0.53	113	17	66.7
TEPA-MSF-4.0	0.53	115	17	28.5

^aTotal pore volumes calculated as the amount of N₂ adsorbed at 𝑃/𝑃₀ = 0.99.
^bBrunauer-Emmet-Teller (BET) surface areas.
^cPore diameters calculated by the Barrett-Joyner-Halenda (BJH) method using the adsorption branches.