Table 2.
The Rhodamine 6G (R6G) loading capacity of Fe3O4/PAA magnetic particles at different adsorptive time.
| Adsorption Time (min) | 10 | 20 | 30 | 40 | 50 | 60 |
|---|---|---|---|---|---|---|
| Absorbance | 1.109 | 1.083 | 0.860 | 0.964 | 1.018 | 1.006 |
| Drug concentration (×10−2 mol/L) | 0.138 | 0.135 | 0.106 | 0.120 | 0.127 | 0.125 |
| The remaining amount of R6G in 20 mL solution (mg) | 13.246 | 12.927 | 10.189 | 11.466 | 12.129 | 11.981 |
| The amount of the adsorbed drug by 0.010 g particles (mg) | 1.028 | 1.347 | 4.085 | 2.808 | 2.145 | 2.293 |
| The amount of the adsorbed drug by 1.0 g particles (mg) | 102.8 | 134.7 | 408.5 | 280.8 | 214.5 | 229.3 |