Table 3. Comparison of the Performances of PPy/MLS and other Adsorbents for Removing Cr(VI) at 25 °C.
| adsorbents | Qm (mg/g) | equilibrium time (min) | optimum pH | references |
|---|---|---|---|---|
| PPy-polyaniline nanofibers | 227–294 | 30–180 | 2.0 | Bhaumik50 |
| PPy/cellulose composite | 130 | 60 | 4.8 | Lei58 |
| PPy/wood sawdust | 3.4 | 15 | 5.0 | Ansari59 |
| PPy/graphene oxide composite | 497.1 | 1440 | 3.0 | Li57 |
| PAN/PPy core/shell mats | 61.8 | 60 | 2.0 | Wang52 |
| PPy-organically modified montmorillonite clay nanocomposite | 119.3 | 180 | 2.0 | Setshedi56 |
| surfactant-modified zeolite | 5.07 | 180 | 6.0 | Ramos60 |
| PPy/MLS | 343.64 | 160 | 2.0 | [Present study] |