The maximum adsorption capacities of CRHB and CRHB-ZnO3 calculated from experimental data of contact time experiments.
| Adsorption capacity (mg g−1) | ||||
|---|---|---|---|---|
| As(iii) | Cd(ii) | Pb(ii) | Cr(vi) | |
| CRHB | 11.64 | 20.31 | 22.70 | 9.76 |
| CRHB-ZnO3 | 17.41 | 29.62 | 31.73 | 14.20 |
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