Comparison of adsorption capacities of different adsorbents towards Cr(VI)
| Adsorbent . | Initial concentration (mg/L) . | Contact time (min) . | qe (mg/g) . | Percentage removal . | Number of reuses . | Percentage removal after reuse . | Reference . |
|---|---|---|---|---|---|---|---|
| Oxidized activated carbon | 50 | 24 × 60 | 5.59 | 41.56% | -- | -- | Al-Othman et al. (2012) |
| Activated carbon | 80 | 120 | 27.64 | 69.10% | -- | -- | Alothman et al. (2013) |
| ZrO2/Fe3O4/chitosan | 70 | 120 | -- | 84.70% | 6 | -- | Kumar et al. (2016) |
| CN-cl-PL(AA)NHG | 60 | 180 | 19.80 | 72.30% | -- | -- | Sharma et al. (2017) |
| CeO2@ZSM-5 | 0.6 | 70 | 0.24 | 99.56% | 5 | 89.2% | This work |
| Adsorbent . | Initial concentration (mg/L) . | Contact time (min) . | qe (mg/g) . | Percentage removal . | Number of reuses . | Percentage removal after reuse . | Reference . |
|---|---|---|---|---|---|---|---|
| Oxidized activated carbon | 50 | 24 × 60 | 5.59 | 41.56% | -- | -- | Al-Othman et al. (2012) |
| Activated carbon | 80 | 120 | 27.64 | 69.10% | -- | -- | Alothman et al. (2013) |
| ZrO2/Fe3O4/chitosan | 70 | 120 | -- | 84.70% | 6 | -- | Kumar et al. (2016) |
| CN-cl-PL(AA)NHG | 60 | 180 | 19.80 | 72.30% | -- | -- | Sharma et al. (2017) |
| CeO2@ZSM-5 | 0.6 | 70 | 0.24 | 99.56% | 5 | 89.2% | This work |