Application of Iron Oxide Nanomaterials for the Removal of Heavy Metals

Table 3

Overview of various iron oxide nanomaterials for removal of arsenic.

Adsorbents	BET surface area (m^2/g)	Adsorption capacity (mg/g)		References
		As (III)	As (V)
Magnetite-silica	163.54	—	170	[66]
MnFe2O4	138	93.8	90.4	[67]
CoFe2O4	101	100.3	73.8	[67]
Magnetic-graphene	148	13.10	5.83	[68]
Fe3O4-BC cellulose		—	36.9	[69]
Mesoporous Fe2O3@C	877	29.4	17.9	[70]
Magnetic binary oxide nanoparticles	123.8	23.25	—	[71]
Fe3O4 wheat saw		3.9	8.06	[72]
MI/CNTs	662.1	8.13	9.74	[73]