Table 3: Overview of various iron oxide nanomaterials for removal of arsenic.

AdsorbentsBET surface area (m2/g) Adsorption capacity (mg/g)References
As (III)As (V)

Magnetite-silica163.54170[66]
MnFe2O413893.890.4[67]
CoFe2O4101100.373.8[67]
Magnetic-graphene 14813.105.83[68]
Fe3O4-BC cellulose 36.9[69]
Mesoporous Fe2O3@C87729.417.9[70]
Magnetic binary oxide nanoparticles 123.823.25[71]
Fe3O4 wheat saw3.98.06[72]
MI/CNTs662.18.139.74[73]