Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Tailorable Cellulose II Nanocrystals (CNC II) Prepared in Mildly Acidic Lithium Bromide Trihydrate (MALBTH)

Journal Article · · Green Chemistry
DOI:https://doi.org/10.1039/D1GC00145K· OSTI ID:1781611
Preparing cellulose II nanocrystals (CNC II) requires a polymorph transformation of natural cellulose I feedstocks. The transformation is usually achieved via a process such as mercerization or dissolution–regeneration. This study demonstrated a new method to prepare CNC II directly from bleached kraft pulp (BKP, a commercially available cellulose I feedstock) in a mildly acidic lithium bromide trihydrate (MALBTH) system, a concentrated (~61 wt%) solution of LiBr in water with a very low concentration (2.5 mM) of sulfuric acid. First, the BKP was treated in the MALBTH system to generate a cellulose II hydrolysis solid residue (CHR) with a yield of 64–86%, during which the selective hydrolysis of disordered cellulose and the polymorph transformation were completed simultaneously. Then, subsequent oxidation of the CHR by ammonium persulfate (APS, 0.1–0.6 M) resulted in the CNC II with high yield (up to 62%), high crystallinity (over 90%), rich surface carboxyl group (0.3–1.2 mmol g-1 cellulose), excellent colloidal stability (up to -59 mV zeta potential), and high thermal stability. The CNC II had a tunable length (26–57 nm), determined by the conditions of the MALBTH hydrolysis and the APS oxidation, but similar lateral dimension (8–10 nm). The characterization of the CHR by wide-angle X-ray diffraction and Fourier transform infrared spectroscopy verified the polymorphic transformation from cellulose I to II during the MALBTH treatment. The swelling of the BKP in the MALBTH enabled cellulose crystallites to slide and reassemble, which completed the rearrangement of cellulose chains from parallel to anti-parallel conformation (polymorph transformation from cellulose I to II). This study provided an efficient and green method to produce cellulose II nanocrystals with controllable aspect ratios via the simultaneous hydrolysis and polymorph transformation of cellulose I feedstocks.
Research Organization:
National Renewable Energy Laboratory (NREL), Golden, CO (United States)
Sponsoring Organization:
USDOE Office of Energy Efficiency and Renewable Energy (EERE)
DOE Contract Number:
AC36-08GO28308
OSTI ID:
1781611
Report Number(s):
NREL/JA-2800-79131; MainId:33357; UUID:f6fafe8b-5ef0-4961-a381-2f5d4b45beac; MainAdminID:19788
Journal Information:
Green Chemistry, Journal Name: Green Chemistry Journal Issue: 7 Vol. 23
Country of Publication:
United States
Language:
English

References (53)

Idealized powder diffraction patterns for cellulose polymorphs journal August 2013
The relevance of structural features of cellulose and its interactions to dissolution, regeneration, gelation and plasticization phenomena journal January 2017
Cellulose-Based Nanomaterials for Energy Applications journal September 2017
Unique Properties and Behavior of Nonmercerized Type-II Cellulose Nanocrystals as Carbon Nanotube Biocompatible Dispersants journal June 2019
Nanocellulose: a new ageless bionanomaterial journal June 2013
Isolation of cellulose nanocrystals from grain straws and their use for the preparation of carboxymethyl cellulose-based nanocomposite films journal October 2016
Production of cellulose nanofibrils from bleached eucalyptus fibers by hyperthermostable endoglucanase treatment and subsequent microfluidization journal October 2014
Crystal Structure and Hydrogen-Bonding System in Cellulose Iβ from Synchrotron X-ray and Neutron Fiber Diffraction journal August 2002
Effect of Reaction Conditions on the Properties and Behavior of Wood Cellulose Nanocrystal Suspensions journal March 2005
Structural FTIR analysis and thermal characterisation of lyocell and viscose-type fibres journal September 2004
Well defined thermostable cellulose nanocrystals via two-step ionic liquid swelling-hydrolysis extraction journal September 2014
Recent advances in the application of cellulose nanocrystals journal May 2017
Tailoring the yield and characteristics of wood cellulose nanocrystals (CNC) using concentrated acid hydrolysis journal April 2015
A facile and fast method for quantitating lignin in lignocellulosic biomass using acidic lithium bromide trihydrate (ALBTH) journal January 2016
Understanding Longitudinal Wood Fiber Ultra-structure for Producing Cellulose Nanofibrils Using Disk Milling with Diluted Acid Prehydrolysis journal October 2016
Synthesis of redispersible spherical cellulose II nanoparticles decorated with carboxylate groups journal January 2016
Isolation of Thermally Stable Cellulose Nanocrystals by Phosphoric Acid Hydrolysis journal March 2013
Direct Microwave-Assisted Hydrothermal Depolymerization of Cellulose journal July 2013
Mercerization of cellulose. I. X-ray diffraction evidence for intermediate structures journal December 1984
Extraction and comparison of carboxylated cellulose nanocrystals from bleached sugarcane bagasse pulp using two different oxidation methods journal March 2016
Comprehensive morphological and structural investigation of cellulose I and II nanocrystals prepared by sulphuric acid hydrolysis journal January 2016
Recent advances in regenerated cellulose materials journal February 2016
Segal crystallinity index revisited by the simulation of X-ray diffraction patterns of cotton cellulose Iβ and cellulose II journal January 2016
Comparative study of SPORL and dilute-acid pretreatments of spruce for cellulosic ethanol production journal May 2010
Fabrication and Mechanistic Study of Aerogels Directly from Whole Biomass journal September 2019
Comparative properties of cellulose nano-crystals from native and mercerized cotton fibers journal May 2012
Highly thermal-stable and functional cellulose nanocrystals and nanofibrils produced using fully recyclable organic acids journal January 2016
Recent progress in cellulose nanocrystals: sources and production journal January 2017
Mercury CSD 2.0 – new features for the visualization and investigation of crystal structures journal March 2008
Cellulose II nanoelements prepared from fully mercerized, partially mercerized and regenerated celluloses by 4-acetamido-TEMPO/NaClO/NaClO2 oxidation journal January 2012
Nanocellulose–surfactant interactions journal May 2017
Wood-Derived Materials for Green Electronics, Biological Devices, and Energy Applications journal July 2016
Cellulose: Fascinating Biopolymer and Sustainable Raw Material journal May 2005
Crystallite Width Determines Monolayer Hydration across a Wide Spectrum of Celluloses Isolated from Plants journal December 2012
Characterization of cellulose II nanoparticles regenerated from 1-butyl-3-methylimidazolium chloride journal May 2013
Preparation and Characterization of Regenerated Cellulose Film from a Solution in Lithium Bromide Molten Salt Hydrate journal June 2018
Optimization of the isolation of nanocrystals from microcrystalline cellulose by acid hydrolysis journal April 2006
Cellulose dissolution in aqueous lithium bromide solutions journal February 2014
Efficient extraction of carboxylated spherical cellulose nanocrystals with narrow distribution through hydrolysis of lyocell fibers by using ammonium persulfate as an oxidant journal January 2014
Facile extraction of thermally stable cellulose nanocrystals with a high yield of 93% through hydrochloric acid hydrolysis under hydrothermal conditions journal January 2013
Supramolecular Structure Characterization of Cellulose II Nanowhiskers Produced by Acid Hydrolysis of Cellulose I Substrates journal February 2012
A Transition from Cellulose Swelling to Cellulose Dissolution by o -Phosphoric Acid:  Evidence from Enzymatic Hydrolysis and Supramolecular Structure journal February 2006
Cellulose nanofibres by sonocatalysed-TEMPO-oxidation journal March 2011
Behavior of nanocelluloses at interfaces journal May 2017
Preparation of tough cellulose II nanofibers with high thermal stability from wood journal March 2014
Cellulose II Aerogel‐Based Triboelectric Nanogenerator journal May 2020
Surface accessibility of cellulose fibrils studied by hydrogen–deuterium exchange with water journal November 2016
Mercerization of cellulose. II. Alkali–cellulose intermediates and a possible mercerization mechanism journal January 1985
Critical insights into the reinforcement potential of cellulose nanocrystals in polymer nanocomposites journal August 2019
Cellulosic nanorods of various aspect ratios for oil in water Pickering emulsions journal January 2013
Periodic Disorder along Ramie Cellulose Microfibrils journal July 2003
Entire Surface Oxidation of Various Cellulose Microfibrils by TEMPO-Mediated Oxidation journal June 2010
Characteristics and Properties of Carboxylated Cellulose Nanocrystals Prepared from a Novel One-Step Procedure journal December 2010