Sonication Enhanced Removal of Nickel and Cobalt Ions from Polluted Water Using an Iron Based Sorbent

Table 2

Comparative applicability of ZVI nanoparticles for removal of nickel and cobalt ions.

Surface area of nanoparticles (m^2/g)	Initial concentration of ions (mg/L)	Ion	Removal percentage	Amount of; nanoparticle (g/L)	Reference
55–75	50	Ni^2+	100	0.8	Present work
55–75	50	Co^2+	100	0.8	Present work
35	100	Ni^2+	100	5	[28]
—	100	Ni^2+	71	5	[25]
14.2	50	Co^2+	96	1.25	[31]