ADSORPSI Fe(III) DAN Cd(II) PADA POLIEUGENOL TERSAMBUNG SILANG BISFENOL A DIGLISIDIL ETER
| Main Authors: | , WIDYA SARTIKA SULISTIANI, , Dr. Dwi Siswanta, M.Eng. |
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| Format: | Thesis NonPeerReviewed |
| Terbitan: |
[Yogyakarta] : Universitas Gadjah Mada
, 2011
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| Subjects: | |
| Online Access: |
https://repository.ugm.ac.id/89142/ http://etd.ugm.ac.id/index.php?mod=penelitian_detail&sub=PenelitianDetail&act=view&typ=html&buku_id=51765 |
Daftar Isi:
- A study of adsorption of Fe (III) and Cd (II) on bisphenol A diglycidyl ether (BADGE)-crosslinked polyeugenol has been conducted. Crosslinking reaction of polieugenol with BADGE was conducted under alkaline conditions and refluxed for 6 hours. The products were characterized by spectroscopy Fourier-Transform Infrared (FTIR) and Scanning electron microscope (SEM). The adsorption of Fe (III) and Cd (II) were conducted by the batch method with variable pH, contact time, and concentration of adsorbate. Selectivity of adsorption of Fe (III) was studied by competitive adsorption against Cd(II). Effect of the polyeugenol modifications to the adsorption of Fe (III) and Cd II) was studied by comparing the adsorption on polyeugenol and BADGE-crosslinked polyeugenol. The concentration of Fe(III) and Cd(II) before and after adsorption were determined using atomic absorption spectrophotometer (AAS). Characterization of BADGE-crosslinked polyeugenol by FTIR showed the disappearance of OH bending absorption at 1365.60 cm-1 and the presence of a sharp absorption of substituted aromatic at 825.53 cm-1. Optimum adsorption of Fe (III) and Cd (II) in the second adsorbent occurs at pH 4 and pH 5 by following the model of pseudo-second order kinetics. Adsorption rate constant of Fe (III) on polyeugenol and BADGE-crosslinked polyeugenol were 0.039 and 0.047 g g-1 min-1 successively with the adsorption capacity of each 166.67 and 200 mg/g. While the rate constant and adsorption capacity of Cd(II) on polieugenol at optimum pH were 0.61 g g-1 min-1 and 0.035 mg/g, and 3.08 g g-1 min-1 and 0.041 mg/g for BADGE-crosslinked polyeugenol respectively. Compared to unmodified polyeugenol, BADGE-crosslinked polyeugenol gave higher adsorption capacity and adsorption selectivity toward Fe(III) in the presence of Cd(II).