Varsha P. V., Neenu K. V., P. M. Sabura Begum, Jean Wilfried Hounfodji, Sameera Sankar, Sneha Muraleedharan, Anjali N. Kamath, T. G. Ajithkumar, Jyotishkumar Parameswaranpillai, Midhun Dominic C. D.
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引用次数: 0
摘要
本研究探讨了未充分利用的鳄梨皮提取纤维素纳米纤维（CNFs）的实用性。在碱水解和无氯漂白之后，采用温和的草酸水解和蒸汽爆炸来制备纤维素纳米纤维。傅立叶变换红外光谱（FTIR）、13C 固态核磁共振（13C NMR）光谱和能量色散 X 射线（EDAX）分析分别研究了提取纤维的结构、原子和元素特征。纳米纤维的结晶度指数为 87%，比粗样品高 53%。扫描电子显微镜（SEM）图像显示半纤维素和木质素被洗脱，透射电子显微镜（TEM）分析显示纳米纤维的直径为 30-82 nm。化学处理还提高了纤维的热稳定性。提取的纤维可应用于电子、包装、汽车、生物医学和化妆品等众多领域。 图文摘要
Valorization of avocado peel waste: extraction and characterization of cellulose nanofibers for multifunctional applications
This study explored the utility of underutilized avocado peels for extracting cellulose nanofibers (CNFs). Mild oxalic acid hydrolysis assisted by steam explosion was employed after alkali hydrolysis and chlorine-free bleaching to prepare cellulose nanofibers. The structural, atomic, and elemental features of the extracted fibers were studied using Fourier transform infrared spectroscopy (FTIR), 13C solid-state nuclear magnetic resonance (13C NMR) spectroscopy, and energy dispersive X-ray (EDAX) analysis, respectively. The crystallinity index of the nanofibers was 87%, which was 53% greater than that of the crude sample. The elution of hemicellulose and lignin was evident from the scanning electron microscopy (SEM) images, and the nanofibers had a fiber diameter of 30–82 nm according to the transmission electron microscopy (TEM) analysis. The applied chemical treatment also elevated the thermal stability of the fibers. The extracted fibers can be applied in numerous fields, including electronics, packaging, automobiles, biomedicine, and cosmetics.
期刊介绍：
Biomass Conversion and Biorefinery presents articles and information on research, development and applications in thermo-chemical conversion; physico-chemical conversion and bio-chemical conversion, including all necessary steps for the provision and preparation of the biomass as well as all possible downstream processing steps for the environmentally sound and economically viable provision of energy and chemical products.
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