Synthesis of Nanocellulose from Coir Pith
Abstract
Coir pith is lignocellulosic in nature and abundantly available by-product of the coir industry. It is a pollutant as it is resistant to biodegradation in the environment. It is mainly composed of cellulose (28%), hemi cellulose (9.5%) and lignin (31%). In this study, cellulose was extracted from the coir pith, and treated generally for the production of nanocellulose. Cellulose is proved to be a versatile material due to its unique chemical structure, which provides a superior platform for several new biomaterials. Nanophase materials are prepared from inorganic materials and hardly any are reported from natural products. When particles are made up to nano size their reactivity increases. FT-IR, TGA, XRD and SEM characterized the extracted cellulose and nanocellulose. The hydrolyzed nanocellulose was found to be the mixed crystalline forms of cellulose I and II. Conversion of this lignocelluloscic biomass to nanocellulose will lead to the preparation of new-nano composites materials for biomedical applications.
References
Juan I. Morian, Vera A, Alvarez, Viviana P, and Cyras., Extraction of cellulose and preparation of nano cellulose from sisal fibers. Cellulose., 2008, 15, 149-159.
Klemm, D., Schmauder, H., and Heinze, T. Cellulose., Biopolymers., 6, 275-319
Li, X., Ding, E., and Li, G., A method of preparing spherical nano crystal cellulose with mixed crystalline forms of cellulose II and I., Chinese Journal of polymer Science., 2001, 19 (13), 291-296.
Loeloich, M., and Leykin, A., ”Nano-cellulose and its application”, J.SITA., 2004, 6(3), 17-24.
Michael loelovich., Cellulose as a nanostructured polymer: A short review., BioResources, 2008, 3(4), 1403-1418.
Mehdi Jonoobi, Jalaluddin Harun, Paridah Md. Tahir, Lukmanul Hakim Zaini, Syeed SaifulAzry, and Majid Davoodi Makinejad., Charecteristics of nanofibers extraction from Kenaf Core. BioResources, 2010, 5(4), 2556-2566.
Oksman, K and Sain M., “Introduction to cellulose nanocomposites” Cellulose Nano composites; Processing, Characterization and Properties, ASC Symposium Series 938, Oxford Press, 2006, 2-8.
Samir, M.A.S.A., Alloin, F., Dufresne, A., Review of recent research in to celluloscic whiskers, their properties and their application in nanocomposites field. Biomacromolecules, 2005, 6(2), 612-626.
Youssef Habibi, Lucian A. Lucia and Orland J. Rojas., Cellulose Nanocrystals: Chemistry, Self-Assembly, and Applications, American Chemical Society., 2010, 110, 3479-3500.