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| materials | C (wt %) | Fe (wt %) | O (Wt %) | N (Wt %) | S (Wt %) |
|---|---|---|---|---|---|
| bare adsorbent | 30.39 | 7.05 | 62.57 | 0 | 0 |
| adsorbent + MG | 46.75 | 6.76 | 31.92 | 14.75 | 0 |
| adsorbent + R6G | 40.28 | 22.58 | 31.27 | 5.86 | 0 |
| adsorbent + MB | 36.71 | 34.46 | 23.29 | 5.41 | 0.12 |
