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The desorption and regeneration properties of hydrogels.
| Metal Ions | Cycle 1 | Cycle 2 | Cycle 3 | Cycle 4 | Cycle 5 | |||||
|---|---|---|---|---|---|---|---|---|---|---|
| A (mg/g) | R (%) | A (mg/g) | R (%) | A (mg/g) | R (%) | A (mg/g) | R (%) | A (mg/g) | R (%) | |
| Pb2+ | 660 | 99% | 598 | 90% | 596 | 89% | 588 | 88% | 580 | 87% |
| Cd2+ | 264 | 94% | 250 | 89% | 245 | 88% | 233 | 83% | 224 | 80% |
| Zn2+ | 135 | 96% | 132 | 92% | 126 | 88% | 120 | 83% | 115 | 80% |
Note: A represents the adsorption capacity (mg/g), and R represents the recovery rate (%).
