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. 2021 Nov 11;11(58):36528–36553. doi: 10.1039/d1ra06892j

Extreme adsorption capacity for some metal oxide nanomaterials to deduce diverse dyes and heavy metals.

Adsorbent Contaminant Adsorption capacity (mg g−1) Ref.
MgO Indanthren blue 86.50 63
MgO Levafix fast red CA 92.16 63
MgO Reactive brilliant red X3B 277.78 225
MgO Congo red 303.03 225
TiO2 Cr6+ 12.60 226
TiO2 Pb2+ 21.70 227
TiO2 Ni2+ 39.30 227
Al2O3 Pb2+ 41.20 227
Al2O3 Ni2+ 35.90 227
Al2O3 Cu2+ 47.90 227
TiO2 Cu2+ 50.20 227
MnO2/gelatin Cd2+ 105.10 228
Al2O3 Cd2+ 118.90 227
TiO2 Cd2+ 120.10 227
MgO Cd2+ 135.00 227
MgO Pb2+ 148.60 227
MgO Cu2+ 149.10 227
MgO Ni2+ 149.90 227
MnO2/gelatin Pb2+ 318.70 228
ZnO Zn2+ 357.00 229
ZnO Cd2+ 387.00 229
ZnO Hg2+ 714.00 229