Preparation and mechanism analysis of morphology-controlled cellulose nanocrystals by H2SO4 hydrolysis of Eucalyptus pulp
Cellulose from Eucalyptuspulp has been used as raw material for producing cellulose nanocrystals (CNCs). In this research work, H2SO4hydrolysis was utilized in the production of CNCs. The effects of hydrolysis parameters, namely, H2SO4concentration (30, 40, and 50 wt%), hydrolysis time...
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| Format: | Article |
| Language: | English |
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Khon Kaen University
2022-11-01
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| Series: | Engineering and Applied Science Research |
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| Online Access: | https://ph01.tci-thaijo.org/index.php/easr/article/view/249606/169996 |
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| author | Pasakorn Jutakridsada Somnuk Theerakulpisut Varsha Srivastava Mika Sillanpää Khanita Kamwilaisak |
| author_facet | Pasakorn Jutakridsada Somnuk Theerakulpisut Varsha Srivastava Mika Sillanpää Khanita Kamwilaisak |
| author_sort | Pasakorn Jutakridsada |
| collection | DOAJ |
| description | Cellulose from Eucalyptuspulp has been used as raw material for producing cellulose nanocrystals (CNCs). In this research work, H2SO4hydrolysis was utilized in the production of CNCs. The effects of hydrolysis parameters, namely, H2SO4concentration (30, 40, and 50 wt%), hydrolysis time (30, 60, and 90 min), and hydrolysis temperature (60, 70, and 80 °C), on the CNC structure were examined. The physical and chemical properties of Eucalyptuspulp and CNCs were characterized using different techniques such as X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM), transmittance electron microscopy (TEM), and thermal gravimetric analysis (TGA). The results showed the optimal condition was at 50 wt% of H2SO4concentration, 60 min hydrolysis time, and 60 °C hydrolysis temperature, which yielded 75.51% ± 1.51 % of crystallinity and 4.03 ± 0.10 nm of crystal size. Furthermore, it was also determined that an increase in H2SO4concentration, time, or temperature led to a lower percentage of crystallinity and reduction in crystal size. CNCs were noted to be more thermally stable than the Eucalyptuspulp. Thus, this method could be an alternative way to create a new product in the paper industry. |
| first_indexed | 2024-03-13T07:07:52Z |
| format | Article |
| id | doaj.art-afe3bbc3ce284b1b9927b4939453eda7 |
| institution | Directory Open Access Journal |
| issn | 2539-6161 2539-6218 |
| language | English |
| last_indexed | 2024-03-13T07:07:52Z |
| publishDate | 2022-11-01 |
| publisher | Khon Kaen University |
| record_format | Article |
| series | Engineering and Applied Science Research |
| spelling | doaj.art-afe3bbc3ce284b1b9927b4939453eda72023-06-06T07:47:19ZengKhon Kaen UniversityEngineering and Applied Science Research2539-61612539-62182022-11-01496753762Preparation and mechanism analysis of morphology-controlled cellulose nanocrystals by H2SO4 hydrolysis of Eucalyptus pulpPasakorn JutakridsadaSomnuk TheerakulpisutVarsha SrivastavaMika SillanpääKhanita KamwilaisakCellulose from Eucalyptuspulp has been used as raw material for producing cellulose nanocrystals (CNCs). In this research work, H2SO4hydrolysis was utilized in the production of CNCs. The effects of hydrolysis parameters, namely, H2SO4concentration (30, 40, and 50 wt%), hydrolysis time (30, 60, and 90 min), and hydrolysis temperature (60, 70, and 80 °C), on the CNC structure were examined. The physical and chemical properties of Eucalyptuspulp and CNCs were characterized using different techniques such as X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM), transmittance electron microscopy (TEM), and thermal gravimetric analysis (TGA). The results showed the optimal condition was at 50 wt% of H2SO4concentration, 60 min hydrolysis time, and 60 °C hydrolysis temperature, which yielded 75.51% ± 1.51 % of crystallinity and 4.03 ± 0.10 nm of crystal size. Furthermore, it was also determined that an increase in H2SO4concentration, time, or temperature led to a lower percentage of crystallinity and reduction in crystal size. CNCs were noted to be more thermally stable than the Eucalyptuspulp. Thus, this method could be an alternative way to create a new product in the paper industry.https://ph01.tci-thaijo.org/index.php/easr/article/view/249606/169996cellulose nanocrystalseucalyptuspulph2so4hydrolysis |
| spellingShingle | Pasakorn Jutakridsada Somnuk Theerakulpisut Varsha Srivastava Mika Sillanpää Khanita Kamwilaisak Preparation and mechanism analysis of morphology-controlled cellulose nanocrystals by H2SO4 hydrolysis of Eucalyptus pulp Engineering and Applied Science Research cellulose nanocrystals eucalyptuspulp h2so4hydrolysis |
| title | Preparation and mechanism analysis of morphology-controlled cellulose nanocrystals by H2SO4 hydrolysis of Eucalyptus pulp |
| title_full | Preparation and mechanism analysis of morphology-controlled cellulose nanocrystals by H2SO4 hydrolysis of Eucalyptus pulp |
| title_fullStr | Preparation and mechanism analysis of morphology-controlled cellulose nanocrystals by H2SO4 hydrolysis of Eucalyptus pulp |
| title_full_unstemmed | Preparation and mechanism analysis of morphology-controlled cellulose nanocrystals by H2SO4 hydrolysis of Eucalyptus pulp |
| title_short | Preparation and mechanism analysis of morphology-controlled cellulose nanocrystals by H2SO4 hydrolysis of Eucalyptus pulp |
| title_sort | preparation and mechanism analysis of morphology controlled cellulose nanocrystals by h2so4 hydrolysis of eucalyptus pulp |
| topic | cellulose nanocrystals eucalyptuspulp h2so4hydrolysis |
| url | https://ph01.tci-thaijo.org/index.php/easr/article/view/249606/169996 |
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