Fabrication and Response Surface Methodology for the Adsorption of Nickel Ferrite-Graphene Oxide Nanocomposite for the Removal of Methylene Blue from Water

Table 1

The variability of factors to MB adsorption capacity.

No.	Factors	Symbols	Values
			-	-1	0	1
1	pH	A	7.32	8	9	10	10.68
2	Initial concentration (ppm)	B	231.82	300	400	500	568.18
3	Time (min)	C	2.50	40	95	150	187.50

With .