Tunable dialdehyde/dicarboxylate nanocelluloses by stoichiometrically optimized sequential periodate–chlorite oxidation for tough and wet shape recoverable aerogels

Patterson, Gabriel D.; Hsieh, You‐Lo

doi:10.1039/d0na00771d

Cited by 20 publications

(18 citation statements)

References 33 publications

(74 reference statements)

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“…CNF has been recently used as a building material to fabricate CNF-based nanohybrids, which have demonstrated promising properties for various applications. [23][24][25][26][27][28][29][30] There are several advantages in developing CNF-based nanohybrids as thermal insulation materials: (1) due to the nanobrous structure of CNF, it may result in a high surface area that acts as a phonon barrier to prevent heat conduction. 31 (2) CNF display organic functional groups on the surface, which can promote the modication of the CNF with different inorganic materials by different non-covalent interactions.…”

Section: Introductionmentioning

confidence: 99%

Biomass-derived cellulose nanofibers and iron oxide-based nanohybrids for thermal insulation application

et al. 2022

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Section: Introductionmentioning

confidence: 99%

Biomass-derived cellulose nanofibers and iron oxide-based nanohybrids for thermal insulation application

et al. 2022

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“…FTIR analysis of the crude MSW fibers showed typical cellulosic peak positions − (Figure a), including Iβ O–H stretching at 3330 cm –1 , C–H asymmetric stretching of C6 CH 2 at 2919 cm –1 , α-CH 2 scissoring at 1417 cm –1 , and the glucose ring stretching at 874 cm –1 as summarized in Table . In addition, TGA analysis of MSW showed a decomposition profile resembling that of wood cellulose, i.e., minor weight loss due to absorbed moisture up to 150 °C attributable to the hygroscopic and abundant surface hydroxyl groups, major decomposition in the 280–380 °C region with a maximum degradation temperature ( T max ) at 335 °C in nitrogen, while the high char residue at 500 °C validated the impurity of this MSW cellulosic biomass (Figure b).…”

Section: Resultsmentioning

confidence: 99%

Garbage to Nanocellulose: Quantitative Isolation and Characterization of Steam-Treated Carboxymethyl Holocellulose Nanofibrils from Municipal Solid Waste

Patterson

McManus

McSpedon

et al. 2023

ACS Sustainable Chem. Eng.

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Municipal solid waste (MSW) is a major source of greenhouse gas emissions unless its carbons are sequestered into highervalue products. This study focuses on isolating organic solids and cellulose-rich fibers from MSW via high-pressure steam treatment and converting the fibrous, prepulped materials from wastepaper, packaging materials, cardboard, etc., into value-added cellulose nanofibrils. Chemical−mechanical defibrillation of steam-treated municipal solid waste was optimized using heterogeneous and nonregioselective carboxymethyl etherification coupled with shearing by blender, thus transforming a heterogeneous mix of MSW into homogeneous carboxymethyl holocellulose nanofibrils without the use of conventional pretreatments of crude cellulosic feedstock. These carboxymethylated, hemicellulose-coated, cellulose nanofibrils were isolated quantitatively at >95% yield with widths 3−8 nm, thicknesses 1−3 nm, and lengths up to 1000 nm. We posit that this advancement of combining an inexhaustible, global supply of waste cellulose, large-scale steam autoclaving pretreatment, and an industrially relevant carboxymethylation process could unlock the higher potential of sustainable cellulosic nanomaterials for a circular economy.

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“…This method was also employed to nanofibrillate [ 149 ], peel [ 150 ], or even disintegrate [ 151 ] cellulose from different sources. More recent studies have demonstrated that it was possible to tailor the surface properties of cellulose nanofibers by sequential oxidation using the periodate-chlorite reaction system [ 152 , 153 ] in order to prepare or even to recover high-performance materials.…”

Section: Selective Oxidation Of Cellulose By Different Methodsmentioning

confidence: 99%

Selective Oxidation of Cellulose—A Multitask Platform with Significant Environmental Impact

Duceac¹,

Tanasă²,

Coseri³

2022

Materials

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Raw cellulose, or even agro-industrial waste, have been extensively used for environmental applications, namely industrial water decontamination, due to their effectiveness, availability, and low production cost. This was a response to the increasing societal demand for fresh water, which made the purification of wastewater one of the major research issue for both academic and industrial R&D communities. Cellulose has undergone various derivatization reactions in order to change the cellulose surface charge density, a prerequisite condition to delaminate fibers down to nanometric fibrils through a low-energy process, and to obtain products with various structures and properties able to undergo further processing. Selective oxidation of cellulose, one of the most important methods of chemical modification, turned out to be a multitask platform to obtain new high-performance, versatile, cellulose-based materials, with many other applications aside from the environmental ones: in biomedical engineering and healthcare, energy storage, barrier and sensing applications, food packaging, etc. Various methods of selective oxidation have been studied, but among these, (2,2,6,6-tetramethylpiperidin-1-yl)oxyl) (TEMPO)-mediated and periodate oxidation reactions have attracted more interest due to their enhanced regioselectivity, high yield and degree of substitution, mild conditions, and the possibility to further process the selectively oxidized cellulose into new materials with more complex formulations. This study systematically presents the main methods commonly used for the selective oxidation of cellulose and provides a survey of the most recent reports on the environmental applications of oxidized cellulose, such as the removal of heavy metals, dyes, and other organic pollutants from the wastewater.

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Tunable dialdehyde/dicarboxylate nanocelluloses by stoichiometrically optimized sequential periodate–chlorite oxidation for tough and wet shape recoverable aerogels

Abstract: Stoichiometrically and sequentially optimized periodate–chlorite oxidations generate tunable C2,C3 dialdehyde–dicarboxylate CNFs/CNCs for tough amphiphilic and wet shape recoverable aerogels.

Cited by 20 publications

References 33 publications

Biomass-derived cellulose nanofibers and iron oxide-based nanohybrids for thermal insulation application

Biomass-derived cellulose nanofibers and iron oxide-based nanohybrids for thermal insulation application

Garbage to Nanocellulose: Quantitative Isolation and Characterization of Steam-Treated Carboxymethyl Holocellulose Nanofibrils from Municipal Solid Waste

Selective Oxidation of Cellulose—A Multitask Platform with Significant Environmental Impact

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