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Isolation and Characterization of Nanocellulose Obtained from Industrial Crop Waste Resources by Using Mild Acid Hydrolysis

Galia Moreno, Karla Ramirez, Marianelly Esquivel, Guillermo Jimenez*
Laboratory of Polymers (POLIUNA), School of Chemistry, National University, Heredia, Costa Rica
*Corresponding author:

Journal of Renewable Materials 2018, 6(4), 362-369. https://doi.org/10.7569/JRM.2017.634167

Abstract

Cellulose, microcrystalline cellulose and nanocellulose were prepared from three agricultural waste resources: pineapple leaf (PALF), banana rachis (BR), and sugarcane bagasse (SCB). Each waste resource was first converted into microcrystalline cellulose which was subsequently converted into cellulose nanoparticles by using mild (30% w/v) and strong (60% w/v) sulfuric acid concentrations for extraction. Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), and thermogravimetric analysis (TGA) were used to characterize each waste resource and extracted cellulosic materials. Furthermore, nanocelluloses were studied by zeta potential, size analysis, and transmission electron microscopy (TEM). Cellulose nanowhiskers were successfully obtained and isolated with a 33% average yield by applying a mild acid treatment. Substrates BR and SCB proved to be more promising agricultural waste resources in terms of their crystalline cellulosic content and properties.

Keywords

Cellulose, pineapple leaf, sugarcane bagasse, banana rachis, whiskers

Cite This Article

Moreno,, G. (2018). Isolation and Characterization of Nanocellulose Obtained from Industrial Crop Waste Resources by Using Mild Acid Hydrolysis. Journal of Renewable Materials, 6(4), 362–369.



This work is licensed under a Creative Commons Attribution 4.0 International License , which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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