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.
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