Sustainable isolation of nanocellulose from cellulose and lignocellulosic feedstocks: Recent progress and perspectives

Jiang, Jungang; Zhu, Yeling; Jiang, Feng

doi:10.1016/j.carbpol.2021.118188

Cited by 87 publications

(43 citation statements)

References 203 publications

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“…In recent years, a nanocellulose [4,5] with excellent properties such as adjustable morphology, high specific surface area, high aspect ratio, biodegradability, biocompatibility, surface chemical reactivity, and high mechanical properties [6,7] has attracted the interest of many researchers, and it can be applied in biomedicine, food packaging, electronic devices, energy storage materials, diaphragms, optical materials, coatings, reinforced toughening materials and water purification [8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Scalable Preparation of Cellulose Nanofibers from Office Waste Paper by an Environment-Friendly Method

et al. 2021

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Waste paper is often underutilized as a low-value recyclable resource and can be a potential source of cellulose nanofibers (CNFs) due to its rich cellulose content. Three different processes, low acid treatment, alkali treatment and bleaching treatment, were used to pretreat the waste paper in order to investigate the effect of different pretreatments on the prepared CNFs, and CNFs obtained from bleached pulp boards were used as control. All sample fibers were successfully prepared into CNFs by 2,2,6,6-tetramethyl-piperidine-1-oxyl (TEMPO) oxidation. It was quite obvious that the bleached CNFs samples showed dense fibrous structures on a scanning electron microscopy (SEM), while needle-like fibers with width less than 20 nm were observed on a transmission electron microscopy (TEM). Meanwhile, the bleaching treatment resulted in a 13.5% increase in crystallinity and a higher TEMPO yield (e.g., BCNF, 60.88%), but a decrease in thermal stability. All pretreated CNFs samples showed narrow particle size distribution, good dispersion stability (zeta potential less than −29.58 mV), good light transmission (higher than 86.5%) and low haze parameters (lower than 3.92%). This provides a good process option and pathway for scalable production of CNFs from waste papers.

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Section: Introductionmentioning

confidence: 99%

Scalable Preparation of Cellulose Nanofibers from Office Waste Paper by an Environment-Friendly Method

et al. 2021

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“…Current technologies for nanocellulose production constitute multiple steps that are energy-intensive and employ harsh operating conditions (Dhali et al, 2021). For example, most research studies have employed bleached pulp obtained from chemical pulping and purification as feedstock to produce nanocellulose (Jiang et al, 2021). However, chemical pulping uses harsh chemicals and large quantities of water that will contribute adversely to environmental impacts.…”

Section: Life Cycle Assessmentmentioning

confidence: 99%

“…Many LCA studies in the literature overlooked the environmental and biological toxicity impacts of nanocellulose (Li et al, 2013;Jiang et al, 2021). Scope of these LCA studies should consider the environmental release and human exposure of nanocelluloses in the inventory modeling for completeness.…”

Section: Life Cycle Assessmentmentioning

confidence: 99%

“…However, lack of appropriate characterization factors specific to nanomaterials that determine toxicity-related potential impacts poses an additional challenge (Salieri et al, 2018). To this end, environmental risk assessment studies (Lazarevic and Finnveden, 2013;Jiang et al, 2021) and development of specific characterisation factors for ecotoxicity impacts should be at the forefront of future studies. Thus, extending the scope of LCA from "cradle to gate" approach to "cradle to grave" can provide a better estimation of the overall impacts associated with nanocellulose based materials.…”

Section: Life Cycle Assessmentmentioning

confidence: 99%

“…These issues demand further research on optimizing enzyme cocktails for nanocellulose production (Arantes et al, 2020) and the on-site production of enzymes to increase the economic viability (Squinca et al, 2020). Most studies on nanocellulose production employed bleached chemical pulp or purified cellulose that already lost 50-60% of the biomass content for nanocellulose production (Jiang et al, 2021). This practice results in less efficient utilization of biomass due to reduced nanocellulose yields with respect to original biomass.…”

Section: Techno-economic Assessmentmentioning

confidence: 99%

See 2 more Smart Citations

Nanocellulose: Resources, Physio-Chemical Properties, Current Uses and Future Applications

Kaur¹,

Sharma²,

Munagala³

et al. 2021

Front. Nanotechnol.

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The growing environmental concerns due to the excessive use of non-renewable petroleum based products have raised interest for the sustainable synthesis of bio-based value added products and chemicals. Recently, nanocellulose has attracted wide attention because of its unique properties such as high surface area, tunable surface chemistry, excellent mechanical strength, biodegradability and renewable nature. It serves wide range of applications in paper making, biosensor, hydrogel and aerogel synthesis, water purification, biomedical industry and food industry. Variations in selection of source, processing technique and subsequent chemical modifications influence the size, morphology, and other characteristics of nanocellulose and ultimately their area of application. The current review is focused on extraction/synthesis of nanocellulose from different sources such as bacteria and lignocellulosic biomass, by using various production techniques ranging from traditional harsh chemicals to green methods. Further, the challenges in nanocellulose production, physio-chemical properties and applications are discussed with future opportunities. Finally, the sustainability of nanocellulose product as well as processes is reviewed by taking a systems view. The impact of chemicals, energy use, and waste generated can often negate the benefit of a bio-based product. These issues are evaluated and future research needs are identified.

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Tough and Ultrastretchable Liquid‐Free Ion Conductor Strengthened by Deep Eutectic Solvent Hydrolyzed Cellulose Microfibers

Sun

Zhu

et al. 2022

Adv Funct Materials

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Ion conductors (ICs) have gained extensive research interest in various advanced application scenarios including sensors, batteries, and supercapacitors. However, stretchable, tough, and long-term stable ICs are still hard to achieve yet highly demanded. In this study, the authors propose a one-pot green and sustainable fabrication of cellulose based ICs through polymerizable deep eutectic solvents treated cellulose followed by an in situ photo-polymerization. The obtained ICs exhibit extremely high stretchability (3210 ± 302%), high toughness (13.17 ± 2.32 MJ m −3 ), high transparency, and self-healing ability. Notably, the introduction of cellulose fibers greatly enhances the mechanical properties of ICs while eliminating the environmental concerns of traditional nanocellulose fabrication process. More importantly, the ICs possess good long-term performance stability after 1 month storage. Due to these outstanding properties, the feasibility of applying ICs in human motion sensing and physiological signal detecting is demonstrated. This simple and green method will contribute to the development of tough, self-healing, transparent, and long-term stable ICs.

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Sustainable isolation of nanocellulose from cellulose and lignocellulosic feedstocks: Recent progress and perspectives

Cited by 87 publications

References 203 publications

Scalable Preparation of Cellulose Nanofibers from Office Waste Paper by an Environment-Friendly Method

Scalable Preparation of Cellulose Nanofibers from Office Waste Paper by an Environment-Friendly Method

Nanocellulose: Resources, Physio-Chemical Properties, Current Uses and Future Applications

Tough and Ultrastretchable Liquid‐Free Ion Conductor Strengthened by Deep Eutectic Solvent Hydrolyzed Cellulose Microfibers

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