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Comparison of monolayer adsorption capacity for Pb(II) by different low-cost adsorbents.
| Adsorbent | Qmax(mg/g) | References | Adsorbent | Qmax(mg/g) | References |
|---|---|---|---|---|---|
| Active carbon | 6.68 | 53 | Diatomaceous earth | 8.5 | 54 |
| Kaolin | 4.50 | Sporopollenin | 8.5 | 55 | |
| Bentonite | 7.56 | Acacia nilotica | 2.51 | 56 | |
| Blast furnace slag | 5.52 | Pinus pinaster bark | 1.59–3.33 | 57 | |
| Fly ash | 4.98 | Tobacco stems | 5.5–5.7 | 58 | |
| Perlite | 8.906 | 59 | Pottery granules | 9.47 | Present study |
