Synthesis and Characterization of Mixed Iron-Manganese Oxide Nanoparticles and Their Application for Efficient Nickel Ion Removal from Aqueous Samples

Table 1

Weight percent (wt.%) and effective concentration of manganese and Fe in the studied samples (the values were normalized considering that Fe (%) + Mn (%) = 100%).

Sample	MnCl2; (wt.%)	FeCl3; (wt.%)	Normalized Mn (%) in the nanostructure	Normalized Fe (%) in the nanostructure
Mn0	0	100	0	100
Mn12	12	88	16	84
Mn25	25	75	25	75
Mn50	50	50	60	40