| Adsorbent | The first stage | The second stage | ||||||
| k1 mg·g−1·min−0.5 | C mg·g−1 | R2 | The adsorption quantity % | k1 mg·g−1·min−0.5 | C mg·g−1 | R2 | The adsorption quantity % | |
| 13X Blank Ample | 0.1499 | 0.8756 | 0.9872 | 90.79 | 0.0575 | 8.6812 | 0.9298 | 9.21 |
| 13x-3wt%CuO | 0.1506 | 0.9479 | 0.9914 | 90.01 | 0.0464 | 12.252 | 0.9762 | 9.99 |
| 13x-6wt%CuO | 0.1390 | 0.9870 | 0.9868 | 85.81 | 0.0420 | 9.2334 | 0.9609 | 14.19 |
| 13x-9wt%CuO | 0.1659 | 0.4692 | 0.9879 | 80.01 | 0.0487 | 7.0641 | 0.9388 | 19.99 |