Table 2.
Decolorization percentage of synthetic dyes using 5 mg/ml of coated silica NP by LPO (LPO-SiO2) and silica NP (SiO2) before and after adding 50 µl H2O2 after 6 h.
| LPO-SiO2 (%)* | LPO-SiO2 + H2O2 (%) | SiO2 (%) | SiO2 + H2O2 (%) | |
|---|---|---|---|---|
| Congo red | 79.3 ± 0.3 | 90.6 ± 0.21 | 3.5 ± 0.9 | 11.4 ± 0.08 |
| Crystal violet | 44.4 ± 0.5 | 98.4 ± 0.94 | 14 ± 0.11 | 17.7 ± 0.32 |
| Methylene blue | 20.9 ± 0.31 | 37.7 ± 0.53 | 18.4 ± 0.4 | 23.76 ± 0.64 |
| Methyl red | 85.5 ± 0.24 | 85.8 ± 0.34 | 5.5 ± 0.12 | 4.5 ± 0.23 |
| Comassie blue R250 | 51.5 ± 0.43 | 99 ± 0.45 | 1 ± 0.01 | 7 ± 0.12 |
*Synthetic dyes without decolorization at concentrations of 500 mg/l were used as negative control (0.0%). All values were expressed as mean ± SEM.