Methylene Blue Adsorption BY UV-Treated Graphene Oxide Nanoparticles (UV/n-GO): Modeling and Optimization Using Response Surface Methodology and Artificial Neural Networks

Table 2

Actual versus model predicted values for adsorption.

Run	A, time (min)	B, (g/L)	C, C0 mg/L	D, pH	% adsorption experimental	% adsorption predicted
1	40	0.2	15	8	88.65	88.93
2	20	0.4	25	8	88.91	89.53
3	30	0.3	20	7	91.91	91.65
4	20	0.2	15	6	94.26	94.70
5	30	0.5	20	7	90.42	90.37
6	30	0.3	20	7	92.4	91.65
7	30	0.1	20	7	93.44	92.94
8	40	0.4	15	6	89.28	89.13
9	40	0.4	25	8	91.4	91.13
10	20	0.2	25	8	90.12	90.44
11	20	0.4	15	6	93.26	93.71
12	30	0.3	20	7	92.4	91.65
13	30	0.3	30	7	92.4	92.49
14	30	0.3	20	9	90	89.69
15	50	0.3	20	7	90	90.50
16	40	0.2	25	6	94.66	95.12
17	20	0.4	25	6	91.71	91.60
18	40	0.4	15	8	84.64	84.99
19	30	0.3	20	7	91.66	91.65
20	30	0.3	20	7	91.66	91.65
21	30	0.3	10	7	90.75	90.82
22	40	0.2	15	6	91	90.78
23	40	0.2	25	8	92.78	92.73
24	10	0.3	20	7	92.95	92.81
25	30	0.3	20	7	91.66	91.65
26	20	0.2	25	6	90.17	90.22
27	40	0.4	25	6	95.72	95.82
28	20	0.4	15	8	92.47	92.18
29	30	0.3	20	5	93.8	93.62
30	20	0.2	15	8	95.15	95.45