Research Article
Comparison of Acid Red 114 Dye Adsorption by Fe3O4 and Fe3O4 Impregnated Rice Husk Ash
Table 3
pH variations after adsorption onto MNP and RHA-MNP (without pH correction).
| Initial dye concentration (mg/L) | pH after adsorption with MNP ( min) | pH after adsorption with RHA-MNP ( min) |
| 20 | 4.37 | 3.41 | 40 | 4.38 | 3.42 | 60 | 4.47 | 3.48 | 80 | 4.48 | 3.49 | 100 | 4.49 | 3.52 |
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