Research Article
Adsorption of Cu(II) and Zn(II) onto Activated Carbon from Oil Palm Empty Fruit Bunch Prepared by Two-Step Acid Treatment and Microwave-Assisted Pyrolysis
Figure 6
Nonlinear data fitting of isotherm models for Cu(II) and Zn(II) adsorption onto EFB and 2ACEFB under optimal condition for (a, b) a two-parameter model and for (c, d) three parameters.
| (a) |
| (b) |
| (c) |
| (d) |