Table 2 CCD matrix with experimental and predicted results.
No. of run | pH | MB concentration (mg/L) | Photocatalyst dosage (g/L) | Time (min) | Removal efficiency (%) | |
|---|---|---|---|---|---|---|
Experimental | Prediction | |||||
1 | 6 | 17.5 | 0.4 | 210 | 81.3 | 80.99 |
2 | 7 | 10 | 0.5 | 180 | 91.1 | 90.29 |
3 | 7 | 15 | 0.5 | 180 | 84.5 | 85.23 |
4 | 6 | 17.5 | 0.6 | 150 | 80.1 | 80.38 |
5 | 7 | 15 | 0.5 | 180 | 86 | 85.23 |
6 | 8 | 12.5 | 0.6 | 210 | 96.7 | 94.75 |
7 | 8 | 12.5 | 0.4 | 210 | 92 | 91.85 |
8 | 9 | 15 | 0.5 | 180 | 93.6 | 93.95 |
9 | 8 | 17.5 | 0.4 | 150 | 83.4 | 84.19 |
10 | 8 | 17.5 | 0.4 | 210 | 87.5 | 86.59 |
11 | 8 | 17.5 | 0.6 | 210 | 89 | 88.37 |
12 | 6 | 12.5 | 0.4 | 150 | 83 | 82.33 |
13 | 8 | 12.5 | 0.4 | 150 | 87 | 87.93 |
14 | 7 | 15 | 0.5 | 180 | 83.5 | 85.23 |
15 | 7 | 15 | 0.7 | 180 | 86.3 | 87.58 |
16 | 5 | 15 | 0.5 | 180 | 82.1 | 82.77 |
17 | 8 | 17.5 | 0.6 | 150 | 86.5 | 85.97 |
18 | 7 | 15 | 0.3 | 180 | 83.2 | 82.89 |
19 | 7 | 15 | 0.5 | 120 | 83.4 | 82.08 |
20 | 6 | 17.5 | 0.4 | 150 | 79 | 78.6 |
21 | 8 | 12.5 | 0.6 | 150 | 90.1 | 90.83 |
22 | 6 | 17.5 | 0.6 | 210 | 84.3 | 82.78 |
23 | 6 | 12.5 | 0.4 | 210 | 86 | 86.26 |
24 | 7 | 15 | 0.5 | 240 | 86.2 | 88.39 |
25 | 6 | 12.5 | 0.6 | 150 | 84.9 | 85.24 |
26 | 7 | 20 | 0.5 | 180 | 79.8 | 80.18 |
27 | 7 | 15 | 0.5 | 180 | 85.3 | 85.23 |
28 | 6 | 12.5 | 0.6 | 210 | 89.5 | 89.16 |
