Synthetic characterization and structural properties of nanocellulose from <i>moringa oleifera</i> seeds

Abstract

In this research, nanocellulose is isolated from Moringa oleifera seed using acid hydrolysis and the structural properties were determined. X-ray diffraction (XRD) and Fourier transform infrared (FTIR) spectroscopy were used for the characterization of the isolated nanocellulose. The most noticeable peak is observed at and the value of the crystallinity index () from the XRD pattern is 63.1%. The calculated values of hydrogen bond intensity (HBI), lateral order index (LOI) and total crystalline index (TCI) are 0.93, 1.17and 0.94 respectively exhibited high degree of crystallinity and well arranged cellulose crystal structure. The isolated nanocellulose has an average length and diameter of 14.3 and 36.33 respectively. Furthermore, the FTIR peaks revealed the presence of C-H bending, C-O stretching and O-H stretching functional groups.

Synthesis, Characterization and Antimicrobial Activities of Copper-Tea Leaves (Camellia Sinensis) Extract Nanoparticles.

“…The mixture (synthesized CuNPs) showed an absorption peak at 400 nm (Figure 3a), confirming the presence of CuNPs, which is in line with other works [12]. The shift in the absorption band from 440 nm of the Tea Leaves Extract (Figure 3b) to 400 nm of CuNPs (Figure 3a) further supports this claim [1,14]. The functional groups in the Tea Leaves Extract and CuNPs were also analyzed by FTIR spectroscopy.…”

Synthesis, Characterization and Biological Potentials of 1-phenylacetyl-pyrrolidine-2-Carboxyaldehyde and its Lanthanoid Complexes

“…This isin agreement with the observed C=O band responsible for the coagulative capacity in water purification. 18 The Ce(III), Pr(III) and Nd(III) complexes showed significant shift in the infrared frequencies for the carbonyl group C=O with a strong absorption band at 1691, 1693, and 1692cm -1 , respectively. This is an evidence of ligation via the oxygen atom of the carbonyl group.…”

Potential of Anacardic Acid for Nanosized Cellulose Preparation Under Different Treatment Conditions

“…All the spectra show the presence of identical functional groups in all samples, an observation expected if the PIS cellulose is cellulosic and the RNC, UNC, and MNC are the nanosized products. Indeed, all spectra contain broad bands at 3312 cm −1 , weak/medium peaks at 2280 cm −1 , weak peaks at 1636 cm −1 , and sharp peaks at 1014 cm −1 representative of O-H stretching, C-H stretching, O-H bending, and C-O stretching vibrations respectively [22][23][24][25].…”