CO₂ Capture by Carbon Aerogel–Potassium Carbonate Nanocomposites

Table 2

CO₂ capture capacity, as measured by TG–DTA and CaO soln–ppt method.

Composite	Loading amount	TG–DTA		CaO soln–ppt
		7CA–K2CO3	18.5 wt%	2.68 (118)	14.5 (638)	2.45 (106)	13.0 (574)
16CA–K2CO3	21.3 wt%	2.45 (106)	11.4 (500)	2.1 (91)	9.77 (430)
18CA–K2CO3	18.8 wt%	2.1 (92)	11.1 (489)	1.7 (76)	9.18 (404)

: mmol-CO₂/g-sorbent; (): mg-CO₂/g-sorbent.
: mmol-CO₂/g-K₂CO₃; (): mg-CO₂/g-K₂CO₃.