Pengaruh pH terhadap Adsorpsi Ion Logam Gabungan Cu(II), Zn(II), Mn(II) dan Fe(II) pada Asam Humat
ABSTRACT: Multiple metal ions
adsorption of Cu(II), Zn(II), Mn(II) and Fe(II) on humic acid with a batch
method has been carried out at pH interaction of 3, 5, and 6. Concentration of
metal ions in solution before and after interaction was analyzed with Atomic
Absorption Spectrophotometer (AAS). Result showed that adsorption multiple
metal ions of Cu(II), Zn(II), Mn(II), and Fe(II) on humic acid is optimum at pH
5. Adsorption energies of the multiple metal ions Cu(II), Zn(II), Mn(II), and
Fe(II) on humic acid at pH 3, 5, and 6 are around 35.0 - 37.6 kJ/mole. In
general, capacity of competition adsorption of the multiple metal ions has an
order as follows; Cu(II) < Fe(II) < Zn(II) < Mn(II).
Penulis: Buhani, Suharso
Kode Jurnal: jpkimiadd060053
