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Characterization of Nanocellulose Using Small-Angle Neutron, X-ray, and Dynamic Light Scattering Techniques
- Source :
- The journal of physical chemistry. B. 121(6)
- Publication Year :
- 2017
-
Abstract
- Nanocellulose extracted from wood pulps using TEMPO (2,2,6,6-tetramethylpiperidine-1-oxyl radical)-mediated oxidation and sulfuric acid hydrolysis methods was characterized by small-angle neutron scattering (SANS), small-angle X-ray scattering (SAXS), and dynamic light scattering (DLS) techniques. The dimensions of this nanocellulose (TEMPO-oxidized cellulose nanofiber (TOCN) and sulfuric acid hydrolyzed cellulose nanocrystal (SACN)) revealed by the different scattering methods were compared with those characterized by transmission electron microscopy (TEM). The SANS and SAXS data were analyzed using a parallelepiped-based form factor. The width and thickness of the nanocellulose cross section were ∼8 and ∼2 nm for TOCN and ∼20 and ∼3 nm for SACN, respectively, where the fitting results from SANS and SAXS profiles were consistent with each other. DLS was carried out under both the VV mode with the polarizer and analyzer parallel to each other and the HV mode having them perpendicular to each other. Using ...
- Subjects :
- Materials science
Scattering
Small-angle X-ray scattering
Analytical chemistry
X-ray
02 engineering and technology
Neutron scattering
010402 general chemistry
021001 nanoscience & nanotechnology
01 natural sciences
0104 chemical sciences
Surfaces, Coatings and Films
Nanocellulose
Crystallography
Dynamic light scattering
Nanocrystal
Transmission electron microscopy
Materials Chemistry
Physical and Theoretical Chemistry
0210 nano-technology
Subjects
Details
- ISSN :
- 15205207
- Volume :
- 121
- Issue :
- 6
- Database :
- OpenAIRE
- Journal :
- The journal of physical chemistry. B
- Accession number :
- edsair.doi.dedup.....498dd0f1579b098d40ada5b079b1e458