Thermal, Structural and Morphological Studies of Cellulose and Cellulose Nanofibers Extracted from Bitter Watermelon of the Cucurbitaceae Family
| Autor: | Imane Kouadri, Hamid Satha, Djafer Benachour |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Environmental Engineering
Materials science Polymers and Plastics Extraction (chemistry) 02 engineering and technology 021001 nanoscience & nanotechnology chemistry.chemical_compound Cellulose fiber Crystallinity 020401 chemical engineering chemistry Nanofiber Materials Chemistry Lignin Hemicellulose Thermal stability 0204 chemical engineering Cellulose 0210 nano-technology Nuclear chemistry |
| Zdroj: | Journal of Polymers and the Environment. 28:1914-1920 |
| ISSN: | 1572-8919 1566-2543 |
| DOI: | 10.1007/s10924-020-01735-6 |
| Popis: | This work presents a new way to prepare and isolate nanometric cellulose fibrils as extracted from Citrullus Colocynthis (Cc) seeds. The nanofibrils were then characterized using spectroscopic, thermal and morphological/structural techniques. IR-Raman spectra of cellulose fibers confirmed that the treatment they went through, effectively removed all non-cellulosic material (i.e. hemicellulose and lignin). In addition to that, TGA results indicated a good and higher thermal stability of the extracted cellulose. HPLC and 1H NMR measurements were carried out to estimate the chemical composition of cellulose from Cc seeds. TEM confirmed the presence of nanofibers in the treated sample; XRD (WAXS-SAXS) data show that the cellulose nanofibers have a higher crystallinity. The preparation (extraction and treatment) of cellulose and cellulose nanofibers from the Cc seeds as well as their thermal, structural and morphological characterizations, were successful. |
| Databáze: | OpenAIRE |
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