Effect of Chemical Treatment on Characterization of Cellulose Nanocrystal Extracted from Banana Fiber: An Experimental Investigation
DOI:
https://doi.org/10.38032/scse.2025.3.134Keywords:
Banana fiber, Cellulose Nanocrystals (CNCs), Chemical treatmentAbstract
Cellulose nanocrystal, known as CNC, is a form of material than can be produced by synthesizing carbon from naturally occurring substances, such as plants. In this study, CNCs were synthesized from banana pseudostem, using acid hydrolysis process. Cellulose was hydrolyzed by 65% H2SO4 at 50°C for 60 minutes following the raw material pretreatment, alkaline treatment, and bleaching processes. Fiber pre-treatment plays a significant role for its further application. The effects of cellulose pre-treatment on characterization of prepared CNCs were investigated. Alkaline treatment was conducted by extraction method using NaOH at different concentration such as 5% (CNC-1), 10% (CNC-2) and 15% (CNC-3). Isolated CNCs were characterized by X-Ray Diffraction (XRD), Fourier Transform Infrared Spectroscopy (FT-IR), Energy Dispersive X-Ray (EDX), and Scanning Electron Microscopy (SEM). Average particle size (in length) of 651 nm in CNC-1, 461 nm in CNC-2, and 48 nm in CNC-3 were found. The average diameter of the CNC was examined as 138 nm. Maximum crystallinity index of 62.27% was found for CNC-3. CNC-1 exhibited maximum water absorption of 51.68.
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Copyright (c) 2025 Shamim Ahmed, M S Rabbi, Tajul Islam Khan (Author)
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