Laboratory of Biocomposite Technology, Institute of Tropical Forest and Forest Product (INTROP), University Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia; Faculty of Bioengineering and Technology, Universiti Malaysia Kelantan, Locked Bag No. 100, 17600 Jeli, Kelantan, Malaysia.
Laboratory of Biocomposite Technology, Institute of Tropical Forest and Forest Product (INTROP), University Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia; Department of Aerospace Engineering, Faculty of Engineering, University Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia; Aerospace Malaysia Innovation Centre [944751-A], Prime Minister's Department, MIGHT Partnership Hub, Jalan Impact, 63000 Cyberjaya, Selangor Darul Ehsan, Malaysia.
Int J Biol Macromol. 2024 Jun;272(Pt 1):132847. doi: 10.1016/j.ijbiomac.2024.132847. Epub 2024 Jun 2.
This study explored the impact of sodium hydroxide and benzoylation treatment on the production of cellulose nanocrystals from Semantan bamboo (Gigantochloa scortechinii). Bamboo cellulose nanocrystals (BCNs) were obtained via acid hydrolysis, with the effectiveness of an isolation method and chemical treatments demonstrated in removing non-cellulosic constituents. X-ray diffraction analysis revealed a crystalline cellulose II structure for benzoylated BCN (B) and a crystalline cellulose I structure for NaOH-treated BCN (S), with BCN (S) exhibiting a higher crystallinity index (80.55 %) compared to BCN (B) (67.87 %). The yield of BCN (B) (23.68 ± 1.10 %) was higher than BCN (S) (20.65 ± 2.21 %). Transmission electron microscopy images showed a mean diameter of 7.95 ± 2.79 nm for BCN (S) and 9.22 ± 3.38 nm for BCN (B). Thermogravimetric analysis indicated lower thermal stability for BCN (B) compared to BCN (S), with charcoal residues at 600 °C of 31.06 % and 22 %, respectively. Zeta potential values were -41.60 ± 1.97 mV for BCN (S) and -21.80 ± 2.54 mV for BCN (B). Gigantochloa scortechinii holds significant potential for sustainable and eco-friendly applications in the construction, furniture, and renewable energy industries. These findings highlight the versatility and potential of BCNs derived from Gigantochloa scortechinii for various applications.
本研究探讨了氢氧化钠和苯甲酰化处理对从 Semantan 竹（Gigantochloa scortechinii）中生产纤维素纳米晶的影响。通过酸水解获得竹纤维素纳米晶（BCN），通过分离方法和化学处理的有效性证明了去除非纤维素成分的效果。X 射线衍射分析表明，苯甲酰化 BCN（B）具有纤维素 II 结构晶体，NaOH 处理的 BCN（S）具有纤维素 I 结构晶体，BCN（S）的结晶度指数（80.55%）高于 BCN（B）（67.87%）。BCN（B）的产率（23.68%±1.10%）高于 BCN（S）（20.65%±2.21%）。透射电子显微镜图像显示 BCN（S）的平均直径为 7.95±2.79nm，BCN（B）的平均直径为 9.22±3.38nm。热重分析表明，BCN（B）的热稳定性低于 BCN（S），600°C 时的炭残留分别为 31.06%和 22%。Zeta 电位值分别为-41.60±1.97mV 和-21.80±2.54mV。Gigantochloa scortechinii 在建筑、家具和可再生能源等行业具有可持续和环保应用的巨大潜力。这些发现突出了 Gigantochloa scortechinii 衍生的 BCN 在各种应用中的多功能性和潜力。
