Highly carboxylated and crystalline cellulose nanocrystals from jute fiber by facile ammonium persulfate oxidation

This report describes the synthesis of highly carboxylated cellulose nanocrystals (CNCs) from jute fiber by facile oxidation with ammonium persulfate (APS). The oxidation time effects on microstructure, surface chemistry, crystal structure, and thermal properties were investigated. Crystal-like morp...

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Bibliographic Details
Published in:Cellulose Vol. 26; no. 6; pp. 3671 - 3684
Main Authors: Bashar, M. Mahbubul, Zhu, Huie, Yamamoto, Shunsuke, Mitsuishi, Masaya
Format: Journal Article
Language:English
Published: Dordrecht Springer Science and Business Media LLC 01.04.2019
Springer Netherlands
Springer Nature B.V
Subjects:
Ammonium peroxodisulfate
ammonium persulfate
Biomass
Bioorganic Chemistry
Carbonyl groups
Carbonyls
carboxylation
Cellulose
Cellulose fibers
cellulose nanofibers
Ceramics
Chemicals
Chemistry
Chemistry and Materials Science
Composites
Crystal structure
Crystalline cellulose
dispersibility
Fourier transform infrared spectroscopy
Fourier transforms
Functional materials
Glass
Jute
Materials selection
microstructure
moieties
Morphology
Nanocrystals
Natural Materials
Organic Chemistry
Original Research
Oxidation
Particle size
Physical Chemistry
Polymer Sciences
Solvents
Sulfuric acid
Surface charge
Sustainable Development
temperature
Thermal stability
Thermodynamic properties
Toluene
X-ray diffraction
X-ray photoelectron spectroscopy
Zeta potential
Bangladesh
Japan
Jute fiber
Surface modification
Cellulose nanocrystal
Oxidation
ISSN:0969-0239, 1572-882X
Online Access:Get full text
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Summary:This report describes the synthesis of highly carboxylated cellulose nanocrystals (CNCs) from jute fiber by facile oxidation with ammonium persulfate (APS). The oxidation time effects on microstructure, surface chemistry, crystal structure, and thermal properties were investigated. Crystal-like morphology was obtained with 5.2 nm average particle diameter and 300–500 nm length, depending on the oxidation time. The degree of oxidation (DO) was found to be 0.27: the highest among APS-oxidized CNCs. The carboxylic group amount of 1550 mmol kg −1 was achieved for 16 h oxidation treatment, resulting in high surface charge with the absolute zeta potential value of 40 mV. The DO value was well correlated with the peak intensity of carbonyl group ascertained from FT-IR studies: 0.12 + 0.38( I 1730 / I 1060 ). As-prepared CNCs showed improved dispersibility in organic solvents up to 15 h. The APS oxidized CNCs showed good thermal stability: the onset decomposition temperature was 240 °C. Using X-ray diffraction method the crystalline index was ascertained as more than 67%. Surface modification of APS-oxidized cellulose nanofibers (CNFs) was confirmed using FT-IR and XPS. Modified CNFs were dispersed in organic solvents such as toluene and THF. Jute is a good candidate material for obtaining highly pure and crystalline CNCs through APS oxidation, exhibiting great potential as a functional material for use in diverse fields. Graphical abstract
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ISSN:0969-0239
1572-882X
DOI:10.1007/s10570-019-02363-7