Production of cellulose nanocrystals from sugarcane bagasse fibers and pith

• Obtaining cellulose nanocrystals from agricultural residues.
• Characterization of properties of cellulose nanocrystals obtained by acid hydrolysis of bleached/not bleached pulp.
• Proposing new materials from agricultural waste.

Cellulose nanocrystals (CNs) were produced from unbleached and bleached sugarcane bagasse pulps by classical H2SO4 hydrolysis of fiber and pith fractions of pressed culms. Both the raw materials and final products were characterized by Fourier transform infrared spectroscopy, scanning electron microscopy, thermogravimetric analysis, field emission gun scanning electron microscopy, X-ray diffraction, and X-ray photoelectron spectroscopy. The advantages and disadvantages of using both unbleached and bleached pulps for the production of CNs were demonstrated and discussed.

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