Studying Ni(II) Adsorption of Magnetite/Graphene Oxide/Chitosan Nanocomposite

Table 1

Comparison of adsorption capacity of GO and GO-based materials for heavy metal ions removal.

Adsorbent	Applied to metal ions	(mg.g^−1)	Working conditions	Reusability	Reference
GO	Co(II)	21.28	pH5.5; 298K	None	[7]
Magnetic Chitosan - GO (MC-GO)	Pb(II)	92%	pH5.0	78% after 4 cycles	[8]
Chitosan-GO	Cr(VI)	104	pH2.0	82% after 10 cycles	[9]
GO-Carbon Composite (GO - CC)	Pb(II)	68.8		None	[10]
GO	Cu(II)	277.77	pH6.0, ambient temperature	Reduced by 4.5% after 5 cycles	[11]
rGO	Pb(II); Cd(II); Cu(II); Mn(II)	413.22; 162.33; 55.34; 42.46	298K	Decreased nearly by 20% after 3 cycles	[12]
GO	Cd(II)	86.2	pH 7, Room temperature	None	[13]
GO	Zn(II)	208.33	pH 7.0, 293K	Reduced nearly by 8% after 6 cycles	[14]
GOCC	Ni(II)	138.31	293K	None	[15]
GO	Ni(II)	38.61	298K, pH 6	None	[16]
Graphene nanosheet/MnO2	Ni(II)	46.55	Room temperature	91% after 5 cycles	[17]