Penggunaan Beads Kitosan-Mikrokristal Selulosa Alang-Alang (Imperata Cylindrica) sebagai Adsorben terhadap Ion Timbal (Pb2+)
| Main Author: | Pandia, Riski |
|---|---|
| Other Authors: | Nasution, Darwin Yunus, Siregar, Amir Hamzah |
| Format: | Thesis application/pdf |
| Bahasa: | ind |
| Terbitan: |
Universitas Sumatera Utara
, 2022
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| Subjects: | |
| Online Access: |
https://repositori.usu.ac.id/handle/123456789/72977 |
Daftar Isi:
- Research on the use of chitosan-microcrystalline cellulose reeds (Imperata cylindrica) beads as an ion lead (Pb2+) adsorbent has been studied. Chitosan microcrystalline cellulose (MCC) beads was prepared by dissolving chitosan and microcrystalline cellulose with acetic acid 2% until homogeneous and then the mixture is dropped into a 0.5M NaOH solution to form beads. Furthermore Chitosan-MCC beads are washed until neutral and then dried. Chitosan-MCC crosslinked beads is made by soaking the chitosan-MCC beads in 0.5% glutaraldehyde for 24 hours. Furthermore, the chitosan-MCC crosslinked beads washed until neutral and then dried. Comparison of chitosan and MCC used is 10:0 ; 9:1 ; 8: 2 and 7: 3 in 1 g. Chitosan-MCC and chitosan-MCC crosslinked beads produced were characterized by SEM, FT-IR, swelling test, crosslinked degrees test and adsorption capacity test. FT-IR analysis indicates imine bond (C = N) and COH groups in the chitosan-MCC beads crosslinked with glutaraldehyde. Swelling test results with 5% acetic acid, formic acid 5%, distilled water, and NaOH 0.5M shows chitosan-MCC crosslinked beads was insoluble in acidic, neutral and alkaline conditions. The crosslinked degrees results of chitosan-MCC crosslinked beads highest with the addition of 0.3 g MCC is 54.257%. Morphological analysis results using scanning electron microscopy (SEM) showed that the chitosan-MCC crosslinked beads has a flat surface and homogeneous. Chitosan-MCC and chitosan-MCC crosslinked beads with a ratio of 7: 3 shows the highest adsorption capacity of Pb2+ ions in a standard solution is ±97.366% and ±95.276%.
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