Research Article
Equilibrium, Kinetic, and Thermodynamic Studies on the Adsorption of Cadmium from Aqueous Solution by Modified Biomass Ash
Table 3
Comparison of Cd2+ adsorption capacities of different absorbents.
| Absorbent | Adsorption capacity (mg/g) | pH | Reference |
| Synthesized matrix | 25.00 | 5 | ā | Peanut shell | 0.93 | 5 | [22] | Banana peel | 5.71 | 5 | [43] | Biochar | 28.1 | 5 | [44] | Coal fly ash | 11.43 | 5 | [45] | Bentonite | 13.5 | 5.5 | [46] | Sepiolite | 8.11 | 5 | [47] | Zeolite | 6.72 | 6.5 | [48] | Activated carbon | 20.36 | 6 | [49] |
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