Recent Advances in Green and Efficient Cellulose Utilization Through Structure Deconstruction and Regeneration

Advanced Functional Materials, Год журнала: 2025, Номер unknown

Опубликована: Фев. 27, 2025

Abstract From the invention of papermaking in ancient times to wide range modern applications fields textiles, medicine, food, and nanotechnology, development cellulose‐based materials reflects humanity's ongoing exploration utilization renewable resources. The production is highly dependent on solvents which can deconstruct regenerate structure cellulose. However, solubility, processing technology, application cellulose based deconstruction regeneration require further research breakthroughs. Here, structural characteristics, solvent system, modification methods, degradation performance are briefly introduced. Moreover, life cycle assessment discussed improve evaluation system demonstrate environmental friendliness potential materials. Finally, several key technologies strategies that assist meeting requirements bioplastics emphasized, with a view increasing recognition their advantages as biodegradable

Язык: Английский

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Closing the Carbon Loop in the Circular Plastics Economy

Macromolecular Rapid Communications, Год журнала: 2022, Номер 43(13)

Опубликована: Май 30, 2022

Today, plastics are ubiquitous in everyday life, problem solvers of modern technologies, and crucial for sustainable development. Yet the surge global demand growing world population has triggered a tidal wave plastic debris environment. Moving from linear to zero-waste carbon-neutral circular economy is vital future planet. Taming waste flood requires closing carbon loop through reuse, mechanical molecular recycling, capture, use greenhouse gas dioxide. In quest eco-friendly products, do not need be reinvented but tuned reuse recycling. Their full potential must exploited regarding energy, resource, eco-efficiency, prevention, economy, climate change mitigation, lowering environmental pollution. Biodegradation holds promise composting bio-feedstock recovery, it neither Holy Grail nor panacea littering. As an alternative downcycling, recycling enables both closed-loop recovery virgin open-loop valorization, producing hydrogen, fuels, refinery feeds, lubricants, chemicals, carbonaceous materials. Closing does create Perpetuum Mobile renewable energy achieve sustainability.

Язык: Английский

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Getting the Terms Right: Green, Sustainable, or Circular Chemistry?

Macromolecular Chemistry and Physics, Год журнала: 2022, Номер 223(13)

Опубликована: Июнь 3, 2022

Abstract Green chemistry, sustainable and circular chemistry are important concepts for the modern lifestyle, current research directions, worldwide industries. These three closely related interconnected but cannot be used synonymously. In addition, they addressing two different economic models, i.e., linear economy economy. The contribution focuses on importance of these decisive chemistries development a future their role in realm planetary boundaries framework—especially boundary “novel entities.” Researchers active field polymer play an as plastic pollution resource addition to environmental depletion, caused by still increasing production polymers plastics, become more pronounced. It is also reported that multi‐ interdisciplinary approaches needed develop solutions future.

Язык: Английский

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Robust ionic liquid/ethanolamine-superbase solvents enable rapid, efficient and mild dissolution of lignocellulosic biomass

Green Chemistry, Год журнала: 2023, Номер 25(12), С. 4685 - 4695

Опубликована: Янв. 1, 2023

Ethanolamine-organic superbase solvents modulate the capacity of formation hydrogen-bonding and microstructure ionic liquids to efficiently dissolve lignocellulose.

Язык: Английский

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Tailoring Hydronium ion Driven Dissociation-Chemical Cross-Linking for Superfast One-Pot Cellulose Dissolution and Derivatization to Build Robust Cellulose Films

ACS Nano, Год журнала: 2024, Номер 18(12), С. 8754 - 8767

Опубликована: Март 8, 2024

Concepts of sustainability must be developed to overcome the increasing environmental hazards caused by fossil resources. Cellulose derivatives with excellent properties are promising biobased alternatives for petroleum-derived materials. However, a one-pot route achieve cellulose dissolution and derivatization is very challenging, requiring harsh conditions, high energy consumption, complex solubilizing. Herein, we design tailoring hydronium ion driven dissociation-chemical cross-linking strategy superfast orderly robust films. In this strategy, there powerful driving force from organic acid pKa below 3.75 dissociate H+ trigger under addition H2SO4. Nevertheless, can only partial swelling but without when above 4.26 dissociation inhibited inorganic acid. The film has transmittance (up ∼90%), tensile strength (∼122 MPa), superior commercial PE film. Moreover, increased 400% compared prepared ZnCl2 solvent. This work provides an efficient solvent, which great significance emerging materials renewable

Язык: Английский

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Efficient and accurate determination of the degree of substitution of cellulose acetate using ATR-FTIR spectroscopy and machine learning

Scientific Reports, Год журнала: 2025, Номер 15(1)

Опубликована: Янв. 23, 2025

Abstract Multiple linear regression models were trained to predict the degree of substitution (DS) cellulose acetate based on raw infrared (IR) spectroscopic data. A repeated k-fold cross validation ensured unbiased assessment model accuracy. Using DS obtained from 1 H NMR data as reference, machine learning achieved a mean absolute error (MAE) 0.069 in test data, demonstrating higher accuracy compared manual evaluation peak integration. Limiting physically relevant areas unexpectedly showed $${\hbox {C}{-}\hbox {H}}$$ be strongest predictor DS. By applying n-best feature selection algorithm F-statistic Pearson correlation coefficient, several identified and optimized an improved MAE 0.052. Predicting other sets yielded similar accuracy, that developed are robust suitable for efficient accurate routine evaluations. The solely was further able esters with $$\approx 0.1-0.2$$ architectures more general analysis proposed.

Язык: Английский

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Aqueous synthesis of highly functional, hydrophobic, and chemically recyclable cellulose nanomaterials through oxime ligation

Nature Communications, Год журнала: 2022, Номер 13(1)

Опубликована: Ноя. 14, 2022

Abstract Cellulose nanofibril (CNF) materials are candidates for the sustainable development of high mechanical performance nanomaterials. Due to inherent hydrophilicity and limited functionality range, most applications require chemical modification CNF. However, targeted transformations directly on CNF cumbersome due propensity aggregate in non-aqueous solvents at concentrations, complicating choice suitable reagents requiring tedious separations final product. This work addresses this challenge by developing a general, entirely water-based, experimentally simple methodology functionalizing CNF, providing aliphatic, allylic, propargylic, azobenzylic, substituted benzylic functional groups. The first step is NaIO 4 oxidation dialdehyde-CNF wet cake state, followed oxime ligation with O-substituted hydroxylamines. increased hydrolytic stability oximes removes need reductive stabilization as often required analogous imines where aldehyde groups react amines water. Overall, process provides tailored degree functionalization (2–4.5 mmol/g) possible reversible detachment under mildly acidic conditions, resulting reformation dialdehyde modified were assessed potential green electronics triboelectric nanogenerators.

Язык: Английский

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Hydrogen bond reconstruction strategy for eutectic solvents that realizes room-temperature dissolution of cellulose

Green Chemistry, Год журнала: 2022, Номер 24(22), С. 8760 - 8769

Опубликована: Янв. 1, 2022

Based on a hydrogen-bond reconstruction strategy, new solvent was designed to realize the efficient dissolution of cellulose at room temperature.

Язык: Английский

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One-pot cellulose etherification and self-crosslinking via a mild hydroxyl–yne click reaction in a homogeneous system

Green Chemistry, Год журнала: 2023, Номер 25(7), С. 2608 - 2619

Опубликована: Янв. 1, 2023

The one-pot etherification and crosslinking of cellulose were successfully achieved by a hydroxyl–yne click reaction in homogeneous system at room temperature.

Язык: Английский

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Polythiourethanes: Synthesis, applications, and opportunities

Progress in Polymer Science, Год журнала: 2023, Номер 145, С. 101735 - 101735

Опубликована: Авг. 22, 2023

Язык: Английский

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