International Journal of Materials Chemistry and Physics
Articles Information
International Journal of Materials Chemistry and Physics, Vol.1, No.2, Oct. 2015, Pub. Date: Jul. 29, 2015
Extraction of Cellulose Nano Crystalline from Cotton by Ultrasonic and Its Morphological and Structural Characterization
Pages: 99-109 Views: 5543 Downloads: 5131
[01] Ismail K. Ibrahim (Al-Khateeb), Chemistry Dept., College of Science, University of Anbar, Ramadi, Iraq.
[02] Sabri M. Hussin, Chemistry Dept., College of Science, University of Anbar, Ramadi, Iraq.
[03] Yusra M. Al-Obaidi, Chemistry Dept., College of Science, University of Anbar, Ramadi, Iraq.
Cellulose nano-crystals (CNCs) were obtained from native cotton fibers by sulphuric acid hydrolysis with range of 30% to 60%, followed by sonication using ultrasonic technology. Nano cellulose has been characterized by transmission electron microscopy (TEM) scanning electron microscopy (SEM) and atomic force microscopy (AFM), X-ray diffraction (XRD), and Fourier transformed infrared (FTIR) spectra. TEM and SEM showed nano fibres - like morphology for low acid concentration, while increasing the acid rate to 40% - 60% showed rod-like shape particles and spherical nano particles. Nano cellulose was quite different from that of unsonicated samples. X-ray diffraction data showed that the fibres had been transformed from cellulose (native) to nano cellulose crystal structure, which manifests significant conversion of cellulose. Nano cellulose exhibited identical FTIR spectra quite different from that of unsonicated samples.
Cellulose Nano-Crystals, Acid-hydrolysis, Sonication
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