Initial pH | q(mg/g) | ||
Pb(II) | Cd(II) | Zn(II) | |
2 2.5 3 3.5 4 4.5 5 5.5 | 0.965 0.984 0.9964 0.9962 0.9905 0.993 0.971 0.968 | 0.998 0.998 0.997 0.999 0.9988 1.000 0.9978 0.9974 | 2.794 17.146 12.750 17.842 27.580 14.537 10.999 6.9750 |