Simple method for obtaining regenerated cellulose nanoparticles from delignified coffee parchment, and their use in fabricating blended films

Campuzano, Francisco; Escobar, Diana Marcela; Torres L, Ana María

doi:10.1007/s10570-023-05368-5

Cited by 3 publications

(2 citation statements)

References 63 publications

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“…Al Hakkak et al [60] reported that cellulose aggregates in spherical nanoparticles with diameters less than 100 nm. Nonetheless, the original organization of this macromolecule in microfibrils in the pulp was disrupted, as evidenced by the acid hydrolysis, which allowed for nanosized particles to be obtained [61,62].…”

Section: Ionic Liquid (Cnc Il )mentioning

confidence: 99%

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Cellulose Nanocrystals and Lignin Nanoparticles Extraction from Lemna minor L.: Acid Hydrolysis of Bleached and Ionic Liquid-Treated Biomass

Puglia,

Luzi,

Tolisano

et al. 2024

Polymers

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Using biomass to develop and obtain environmentally friendly and industrially applicable biomaterials is increasingly attracting global interest. Herein, cellulose nanocrystals (CNCs) and lignin nanoparticles (LNPs) were extracted from Lemna minor L., a freshwater free-floating aquatic species commonly called duckweed. To obtain CNCs and LNPs, two different procedures and biomass treatment processes based on bleaching or on the use of an ionic liquid composed of triethylammonium and sulfuric acid ([TEA][HSO4]), followed by acid hydrolysis, were carried out. Then, the effects of these treatments in terms of the thermal, morphological, and chemical properties of the CNCs and LNPs were assessed. The resulting nanostructured materials were characterized by using Fourier-transform infrared (FTIR) spectroscopy, X-ray diffraction (XRD) spectroscopy, thermo-gravimetric analysis (TGA), and scanning electron microscopy (SEM). The results showed that the two methodologies applied resulted in both CNCs and LNPs. However, the bleaching-based treatment produced CNCs with a rod-like shape, length of 100–300 nm and width in the range of 10–30 nm, and higher purity than those obtained with ILs that were spherical in shape. In contrast, regarding lignin, IL made it possible to obtain spherical nanoparticles, as in the case of the other treatment, but they were characterized by higher purity and thermal stability. In conclusion, this research highlights the possibility of obtaining nanostructured biopolymers from an invasive aquatic species that is largely available in nature and how it is possible, by modifying experimental procedures, to obtain nanomaterials with different morphological, purity, and thermal resistance characteristics.

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Section: Ionic Liquid (Cnc Il )mentioning

confidence: 99%

“…Polymers 2024, 16, x FOR PEER REVIEW this macromolecule in microfibrils in the pulp was disrupted, as evidenced by hydrolysis, which allowed for nanosized particles to be obtained [61,62]. TGA: The thermal degradation pattern for pulp derived from duckweed treatment is shown in Figure 3b.…”

Section: Ionic Liquid (Cnc Il )mentioning

confidence: 99%

Cellulose Nanocrystals and Lignin Nanoparticles Extraction from Lemna minor L.: Acid Hydrolysis of Bleached and Ionic Liquid-Treated Biomass

Puglia,

Luzi,

Tolisano

et al. 2024

Polymers

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Microfibrillated celluloses produced from kraft pulp of coffee parchment

Coura,

Demuner,

Ribeiro

et al. 2024

Biomass Conv. Bioref.

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Challenges and Prospects of Applying Nanocellulose for the Conservation of Wooden Cultural Heritage—A Review

Kryg,

Mazela,

Perdoch

et al. 2024

Forests

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Nanocellulose is a nanostructured form of cellulose, which retains valuable properties of cellulose such as renewability, biodegradability, biocompatibility, nontoxicity, and sustainability and, due to its nano-sizes, acquires several useful features, such as low density, high aspect ratio and stiffness, a high specific surface area, easy processing and functionalisation, and good thermal stability. All these make it a highly versatile green nanomaterial for multiple applications, including the conservation of cultural heritage. This review provides the basic characteristics of all nanocellulose forms and their properties and presents the results of recent research on nanocellulose formulations applied for conserving historical artefacts made of wood and paper, discussing their effectiveness, advantages, and disadvantages. Pure nanocellulose proves particularly useful for conserving historical paper since it can form a durable, stable coating that consolidates the surface of a degraded object. However, it is not as effective for wood consolidation treatment due to its poor penetration into the wood structure. The research shows that this disadvantage can be overcome by various chemical modifications of the nanocellulose surface; owing to its specific chemistry, nanocellulose can be easily functionalised and, thus, enriched with the properties required for an effective wood consolidant. Moreover, combining nanocellulose with other agents can also improve its properties, adding new functionalities to the developed supramolecular systems that would address multiple needs of degraded artefacts. Since the broad use of nanocellulose in conservation practice depends on its properties, price, and availability, the development of new, effective, green, and industrial-scale production methods ensuring the manufacture of nanocellulose particles with standardised properties is necessary. Nanocellulose is an interesting and very promising solution for the conservation of cultural heritage artefacts made of paper and wood; however, further thorough interdisciplinary research is still necessary to device new green methods of its production as well as develop new effective and sustainable nanocellulose-based conservation agents, which would replace synthetic, non-sustainable consolidants and enable proper conservation of historical objects of our cultural heritage.

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Simple method for obtaining regenerated cellulose nanoparticles from delignified coffee parchment, and their use in fabricating blended films

Cited by 3 publications

References 63 publications

Cellulose Nanocrystals and Lignin Nanoparticles Extraction from Lemna minor L.: Acid Hydrolysis of Bleached and Ionic Liquid-Treated Biomass

Cellulose Nanocrystals and Lignin Nanoparticles Extraction from Lemna minor L.: Acid Hydrolysis of Bleached and Ionic Liquid-Treated Biomass

Microfibrillated celluloses produced from kraft pulp of coffee parchment

Challenges and Prospects of Applying Nanocellulose for the Conservation of Wooden Cultural Heritage—A Review

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