Carbon Dioxide Capture from Ambient Air Using Amine-Grafted Mesoporous Adsorbents

Table 1

Experimental settings, gas, gas flow, temperature range, times, relative humidity, and so forth during adsorption and desorption.

Experiment	Figure(s)	Material(s)	Adsorption					Desorption
			Gas	Flow; (mL/min)	Temperature; (°C)	Time	RH; (%)	Gas	Flow; (mL/min)	Temperature; (°C)	Time; (min)	RH; (%)
10 TGA cycles, dry	1, 2, 4	MONO, TRI	CO2	50	50	30 min	0	N2	50	120^1	60	0
3 cycles outdoor adsorption	3, 4	TRI	Air	—	(+5)–(−5)	Overnight	60–80	Synthetic air	10	100	120	0.45
3 cycles outdoor adsorption	3	TRI	Air	—	(0)–(−5)	Overnight	90–100	Synthetic air	10	75	120	3
3 cycles outdoor adsorption	3	TRI	Air	—	(0)–(−2)	Overnight	90–100	N2	10	100	120	0.45
4 TGA cycles, humid	3	TRI	Synthetic air	10	30	180 min	73	Synthetic air	10	100	15	0.45
4 TGA cycles, dry	3	TRI	Synthetic air	10	30	180 min	0	Synthetic air	10	100	15	0
Atmospheric trace gases	—	TRI	Air	—	(0)–(−10)	35 h	90	Synthetic air	10	100	120	0.45
Atmospheric trace gases	—	MONO, TRI	Air	—	(+10)–(+20)	41 h	40–80	Synthetic air	10	100	120	0.45
Atmospheric trace gases	—	TRI	Air	—	(0)–(−10)	191 h	80–100	Synthetic air	10	100	120	0.45
Atmospheric trace gases	5	MONO, TRI	Air	—	(0)–(+20)	202 h	30–90	Synthetic air	10	100	120	0.45
Atmospheric trace gases	5	MONO, TRI	Air	—	(0)–(+20)	514 h	30–70	Synthetic air	10	100	120	0.45

1Temperature ramp: 20 K/min.