Research Article
Preparation of a Modified PTFE Fibrous Photo-Fenton Catalyst and Its Optimization towards the Degradation of Organic Dye
Table 3
Impact of Cu/Fe molar ratio on leaching of metal ions from Cu-Fe bimetallic PTFE fiber complexes.
| Samples | Metal ions concentration in solution (mg L−1) | pH = 3 | pH = 7 | pH = 9 | Fe(III) | Cu(II) | Fe(III) | Cu(II) | Fe(III) | Cu(II) |
| Fe-PAA-g-PTFE | 0.93 | 0.00 | 0.82 | 0.00 | 0.29 | 0.00 | Cu-Fe-PAA-g-PTFE (i) | 0.63 | 0.35 | 0.53 | 0.29 | 0.19 | 0.12 | Cu-Fe-PAA-g-PTFE (ii) | 0.21 | 0.76 | 0.13 | 0.49 | 0.06 | 0.24 | Cu-Fe-PAA-g-PTFE (iii) | 0.17 | 0.92 | 0.10 | 0.45 | 0.08 | 0.19 | Cu-PAA-g-PTFE | 0.00 | 1.25 | 0.00 | 0.89 | 0.00 | 0.31 |
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