Adsorpsi Ion Logam Zn (II) Dan Cu(ii) Pada Kitosan Nano Bead Dari Cangkang Udang Windu(penaus Monodon) (Adsorptionzn(ii) and Cu(ii) Ions on Chitosan Nanobeads From Shrimp Waste (Penaus Monodon)

摘要

Two typies of adsorbent have been made, i.e: chitosan and chitosan bead using shell of shrimp (Penaus monodon ) as raw materials, for Zn(II) and Cu(II) metal ions adsorption. Adsorption parameters such as, pH, the adsorption rate, and the capacity of adsorption were determined. The adsorption kinetic 1st and 2nd order models were applied in the estimation of the adsorption rate, whereas the isotherm adsorption Langmuir and Freundlich model were employed for determination of the capacity of adsorption.The results showed that adsorption of Zn(II) and Cu(II) metal ions on chitosan and chitosan bead have the same of optimum pH. The adsorption rate of Zn(II) and Cu(II) metal ions on chitosan bead significant faster than on chitosan. Modification with swelling process enhanced the adsorption capacity Zn(II) and Cu(II) on chitosan.