Assessment of New Technique for Production Cellulose Nanocrystals from Agricultural Waste

Abstract:

Rice husk (RH) is the largest cereal crop that represents a crucial agricultural waste founded all over the world. There is a vast quantity of RH generated, any amount of paddy contains at least 20% of husk. Consequently, open burning processes were often lead to great environmentally hazard. This work investigates a new technique for the production of cellulose nanocrystals (CNC) using the following route; Alkaline treatment using sodium hydroxide (2% NaOH), followed by bleaching with hydrogen peroxide (2% H₂O₂), and finally grinding process. In this new process, we avoided the long-lasting hydrolysis step. The extracted CNC was characterized using different techniques. Morphological structural composition of the extracted CNC was inspected using scanning electron microscopy (SEM) and transmission electron microscopy (TEM). Fourier transform infrared (FTIR) spectroscopy displayed the elimination of non-cellulosic constituents. X-ray diffraction (XRD) analysis reported the crystallinity of each molecule group. Thermogravimetric analysis (TGA) was completed to inspect the thermal stability of the extracted cellulose nanocrystals.

• Periodical: Materials Science Forum (Volume 928)
• Pages: 83-88
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.928.83
• Online since: August 2018
• Authors: Hesham Ibrahim Elqady*, Ahmed Hassan El-Shazly, Marwa Farouk El-Kady, Kholoud Madih
• Keywords: Cellulose Nanocrystals, Characterization, Natural Fibers, Rice Husk

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