Table 17.

SO₂ adsorptive property of (a) metal-carboxylate MOFs, (b) metal-azolate MOFs, (c) fluorinated MOFs, and (d) fibrous MOF membranes.

MOF compounds	Adsorption Mechanism (SO2 binding)	SO2 uptake (mmol g−1) at 298 K	Ref
a. Metal-carboxylate MOFs
MFM-300 (Al)	H-bonding, dipole interactions	7.1; 8.1 (273 K)	[246]
NOTT-300	H-bonding, dipole interactions	7.1; 8.1 (273 K)	[246]
MFM-300 (In)	H-bonding, dipole interactions	8.28	[247]
MFM-305-CH3	H-bonding, dipole interactions	6.99	[248]
MFM-305	H-bonding, dipole interactions	5.16	[248]
MFM-600	H-bonding, dipole interactions	5	[249]
MFM-601	H-bonding, dipole interactions	12.3	[249]
NOTT-202a	Host-guest, dipole interactions	13.6	[250]
Ni(TED)(BDC)	Unsaturated metal sites	9.97	[251]
Zn(BDC)(TED)	Unsaturated metal sites	4.41	[251]
MOF-74 (Mg)	Unsaturated metal sites	8.6	[251]
b. Metal-azolate MOFs
[Ni8(OH)4(H2O)2(BDP_H)6]	Polar surfaces, defective crystal sites	2.02	[252]
[Ni8(OH)4(H2O)2(BDP_NH2)6]	Polar surfaces, defective crystal sites	3.35	[252]
[Ni8(OH)4(H2O)2(BDP_OH)6]	Polar surfaces, defective crystal sites	2.11	[252]
K[Ni8(OH)3(EtO)3(BDP_H)5.5]	Polar surfaces, defective crystal sites	3.26	[252]
K[Ni8(OH)3(EtO)3(BDP_NH2)5.5]	Polar surfaces, defective crystal sites	4.38	[252]
K3[Ni8(OH)3(EtO)(BDP_O)5]	Polar surfaces, defective crystal sites	2.54	[252]
Ba0.5[Ni8(OH)3(EtO)3(BDP_H)5.5]	Polar surfaces, defective crystal sites	4	[252]
Ba0.5[Ni8(OH)3(EtO)3(BDP_NH2)5.5]	Polar surfaces, defective crystal sites	5.61	[252]
Ba1.5[Ni8(OH)3(EtO)(BDP_O)5]	Polar surfaces, defective crystal sites	3.65	[252]
c. Fluorinated MOFs
SIFSIX-1-Cu	Dipole, host–guest interactions	11.01	[253]
SIFSIX-2-Cu-i	Dipole, host–guest interactions	6.9	[253]
NbOFFIVE-1-Ni	Host-guest interactions	2.2	[254]
AlFFIVE-1-Ni	Host-guest interactions	2.2	[254]
d. Fibrous MOF membranes (dynamic adsorption of SO2)
UiO-66-NH2/PAN	Electrostatic interactions, un-saturated metal sites	0.019 g/g	[233]
MOF-199/PAN	Electrostatic interactions, un-saturated metal sites	0.014 g/g	[233]
MIL-53(Al)–NH2/PAN	Electrostatic interactions	0.0028 g/g	[236]