Then, Yuan Zu (2019) ISOLATION OF CELLULOSE NANOFIBERS FROM AGRICULTURAL WASTES (SAGO PITH WASTE). [Final Year Project Report] (Unpublished)
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Abstract
The isolation of cellulose nanofibers from sago pith waste was performed by using combination of chemical treatment and homogenization. The purpose of this study is to isolate the cellulose nanofibers which are useful in various fields from the by-products of sago starch extracting process which are known might create environmental pollution. Besides, this research studies the surface morphology and diameter of the cellulose fibers and nanofibers at different stages of the chemical treatments and also after the homogenization process. Moreover, the changes in the functional groups of the cellulose fibers before and after each chemical treatment were studied. Furthermore, the percentage yield of the cellulose nanofibers was also determined by applying the proposed formula. The chemical treatments processes involve alkaline treatment, bleaching and acid hydrolysis whereas the mechanical treatment involves homogenization. The surface morphology and diameters of the cellulose fibers and nanofibers was determined by using Scanning Electron Microscope (SEM). Fourier Transform Infrared (FTIR) was used to study the changes in the functional groups of the raw fibers and the chemically-treated fibers. The combination of chemical treatment and homogenization successfully isolate the cellulose microfibers with diameter ranged from 16m to 1.3m. Moreover, the surface morphology, diameter and changes in the functional group of the cellulose nanofibers were successfully determine by SEM and FTIR respectively.
| Item Type: | Final Year Project Report |
|---|---|
| Additional Information: | Project report (BAA) -- Universiti Malaysia Sarawak, 2019. |
| Uncontrolled Keywords: | cellulose nanofibers, sago pith waste, chemical treatments, homogenization |
| Subjects: | Q Science > QD Chemistry |
| Divisions: | Academic Faculties, Institutes and Centres > Faculty of Resource Science and Technology Faculties, Institutes, Centres > Faculty of Resource Science and Technology |
| Depositing User: | Dan |
| Date Deposited: | 05 Nov 2021 08:58 |
| Last Modified: | 20 Mar 2024 06:48 |
| URI: | http://ir.unimas.my/id/eprint/36611 |
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