Putra R., Wahyu Adhi (2019) Sintesis dan karakterisasi beads alginat-selulosa xantat dari batang Jagung dengan variasi porogen level konsentrasi rendah. Undergraduate thesis, Universitas Islam Negeri Maulana Malik Ibrahim.
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Abstract
INDONESIA :
Selulosa merupakan biopolimer yang melimpah di alam dan bersifat biodegradable. Biopolimer tersebut dapat digunakan sebagai bahan pembuatan beads. Pada penelitian ini, selulosa diekstrak dari batang jagung kemudian dirubah menjadi turunanya yaitu selulosa xantat untuk mengoptimalkan penyerapan beads. Penyerapan beads dapat ditingkatkan dengan penambahan porogen. Porogen yang digunakan adalah natrium klorida (NaCl) dengan variasi 3,3; 6,5 dan 9,3%. Beads dibuat dengan metode gelasi ionik.
Penelitian ini bertujuan untuk mengetahui pengaruh penambahan porogen NaCl terhadap daya swelling beads alginat-selulosa xantat, mengetahui karakter beads alginat-selulosa xantat berdasarkan analisis gugus fungsi, morfologi permukaan dan porositas dari beads alginat-selulosa xantat optimum. Hasil sintesis dikarakterisasi menggunakan Fourier Transform Infra Red (FTIR), mikroskop optik, dan Scenning Electron Microscopy-Energi Dipersif sinar-X (SEM-EDX).
Beads yang dihasilkan memiliki diameter 2,6-5,8 mm. Hasil karakterisasi menggunakan FTIR menunjukkan keberhasilan ikat silang antara Zn2+ dan alginat dengan adanya serapan pada bilangan gelombang 819 cm-1 untuk beads AC-0 dan 815 cm-1 pada beads AC-3.cm-1. Penambahan variasi porogen NaCl tidak berdampak signifikan terhadap daya swelling beads. Beads dengan penambahan porogen NaCl memiliki morfologi yang kasar, berlipat-lipat serta terdapat retakan, sedangan beads tanpa porogen memiliki morfologi kasar dan berpori. Hasil EDX menunjukkan beads AC-3 masih mengandung atom Na dan Cl sebesar 7,05 dan 0,05%.
ENGLISH :
Cellulose is a biopolymer that is abundant in nature and biodegradable. The biopolymer can be used as a material for making beads. In this study, cellulose extracted from corn stalks was then converted into a cellulose xanthate derivative to optimize absorption of beads. Absorption of beads can be increased by adding porogen. The porogen used is sodium chloride (NaCl) with a variation of 3.3; 6.5 and 9.3%. Beads are made by ionic gelation method.
This study aimed to determine the effect of adding porogen NaCl to the power of alginate-cellulose xanthate swelling beads, to determine the character of alginate-cellulose xantate beads based on functional group analysis, surface morphology and porosity of the optimum alginate-cellulose xantate beads. The synthesis results were characterized using Fourier Transform Infra Red (FTIR), optical microscopy, and Scenning Electron Microscopy- Energy Dispesity X-ray (SEM-EDX)
The resulting beads have a diameter of 2.6-5.8 mm. The results of characterization using FTIR showed the success of crosslinking between Zn2+ and alginate in the presence of absorption shifts at wavelengths between 1400-1700 cm-1. The addition of porogen NaCl variations did not significantly influence the power of swelling beads. Beads with the addition of porogen NaCl have a rough, multiple-fold morphoogy and cracks, while beads without porogens have a rough and porous morphology. The EDX results show that AC-3 beads still contain Na and Cl atoms of 7.05 and 0.05%.
Item Type: | Thesis (Undergraduate) | |||||||||
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Supervisor: | Yulianti, Eny and Imamudin, Mochamad | |||||||||
Contributors: |
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Keywords: | alginat-selulosa xantat; batang jagung; gelasi ionik; porogen NaCl; alginate-cellulose xanthate; corn stalks; ionic gelation | |||||||||
Departement: | Fakultas Sains dan Teknologi > Jurusan Kimia | |||||||||
Depositing User: | Dian Anesti | |||||||||
Date Deposited: | 05 Mar 2020 09:16 | |||||||||
Last Modified: | 09 Jun 2023 15:02 | |||||||||
URI: | http://etheses.uin-malang.ac.id/id/eprint/15200 |
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