Recent Advances on Renewable and Biodegradable Cellulose Nanopaper Substrates for Transparent Light-Harvesting Devices: Interaction with Humid Environment

Operamolla, Alessandra

doi:10.1155/2019/3057929

Cited by 20 publications

(16 citation statements)

References 45 publications

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“…Adopting low-cost solar cell substrates is a feasible way to overcome this challenge. Nanopaper is considered as a promising green substrate for solar cell construction due to its excellent mechanical properties, adjustable optical properties, and low cost [ 43 ]. Hu et al reported a transparent nanopaper-based solar cells, but the photoelectric conversion efficiency was only 0.21% [ 155 ].…”

Section: Applications Of Cellulose Nanopapermentioning

confidence: 99%

Cellulose Nanopaper: Fabrication, Functionalization, and Applications

et al. 2022

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Cellulose nanopaper has shown great potential in diverse fields including optoelectronic devices, food packaging, biomedical application, and so forth, owing to their various advantages such as good flexibility, tunable light transmittance, high thermal stability, low thermal expansion coefficient, and superior mechanical properties. Herein, recent progress on the fabrication and applications of cellulose nanopaper is summarized and discussed based on the analyses of the latest studies. We begin with a brief introduction of the three types of nanocellulose: cellulose nanocrystals, cellulose nanofibrils and bacterial cellulose, recapitulating their differences in preparation and properties. Then, the main preparation methods of cellulose nanopaper including filtration method and casting method as well as the newly developed technology are systematically elaborated and compared. Furthermore, the advanced applications of cellulose nanopaper including energy storage, electronic devices, water treatment, and high-performance packaging materials were highlighted. Finally, the prospects and ongoing challenges of cellulose nanopaper were summarized.

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Section: Applications Of Cellulose Nanopapermentioning

confidence: 99%

Cellulose Nanopaper: Fabrication, Functionalization, and Applications

et al. 2022

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“…Siding the industrially oriented research, new emerging fields of application of nanocellulose include hydrogels and aerogels [ 13 , 14 ], emulsion stabilizers [ 15 ], biocatalyst immobilizers [ 16 ], biosensors [ 17 ], drug delivery systems [ 18 ], adsorbents for contaminants [ 19 , 20 ], nanocomposites for environmental remediation [ 21 ], photonic films and transparent substrates for optoelectronic devices, as well as new nanostructured electroactive materials [ 22 , 23 , 24 , 25 , 26 ].…”

Section: Introductionmentioning

confidence: 99%

Reductive Amination Reaction for the Functionalization of Cellulose Nanocrystals

et al. 2021

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Cellulose nanocrystals (CNCs) represent intriguing biopolymeric nanocrystalline materials, that are biocompatible, sustainable and renewable, can be chemically functionalized and are endowed with exceptional mechanical properties. Recently, studies have been performed to prepare CNCs with extraordinary photophysical properties, also by means of their functionalization with organic light-emitting fluorophores. In this paper, we used the reductive amination reaction to chemically bind 4-(1-pyrenyl)butanamine selectively to the reducing termini of sulfated or neutral CNCs (S_CNC and N_CNC) obtained from sulfuric acid or hydrochloric acid hydrolysis. The functionalization reaction is simple and straightforward, and it induces the appearance of the typical pyrene emission profile in the functionalized materials. After a characterization of the new materials performed by ATR-FTIR and fluorescence spectroscopies, we demonstrate luminescence quenching of the decorated N_CNC by copper (II) sulfate, hypothesizing for these new functionalized materials an application in water purification technologies.

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“…In this context, nanocellulose-based materials show great potential for industry [ 35 ], as the principles of green and blue economies demand new sources of sustainable materials in substitution of oil-derivatives, for high volume applications in sectors, such as water treatment [ 36 ], paint and coating industry, building, hygiene, and paper industry [ 37 ]. Besides, new intriguing and emerging applications concern the use of nanocellulose in hydrogels and aerogels [ 38 , 39 ], emulsion stabilizers [ 40 ], biocatalyst immobilizers [ 41 ], biosensors [ 42 ], drug delivery systems [ 43 ], adsorbents for contaminants [ 44 , 45 ], nanocomposites for environmental remediation [ 46 ], photonic films and transparent substrates for optoelectronic devices, as well as new nanostructured electroactive materials [ 47 , 48 , 49 ]. Indeed, nanocellulose can expose a large active area, is transparent, and it is harmless for human health and the environment [ 50 , 51 ].…”

Section: Introductionmentioning

confidence: 99%

Nanocellulose/Fullerene Hybrid Films Assembled at the Air/Water Interface as Promising Functional Materials for Photo-electrocatalysis

et al. 2021

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Cellulose nanomaterials have been widely investigated in the last decade, unveiling attractive properties for emerging applications. The ability of sulfated cellulose nanocrystals (CNCs) to guide the supramolecular organization of amphiphilic fullerene derivatives at the air/water interface has been recently highlighted. Here, we further investigated the assembly of Langmuir hybrid films that are based on the electrostatic interaction between cationic fulleropyrrolidines deposited at the air/water interface and anionic CNCs dispersed in the subphase, assessing the influence of additional negatively charged species that are dissolved in the water phase. By means of isotherm acquisition and spectroscopic measurements, we demonstrated that a tetra-sulfonated porphyrin, which was introduced in the subphase as anionic competitor, strongly inhibited the binding of CNCs to the floating fullerene layer. Nevertheless, despite the strong inhibition by anionic molecules, the mutual interaction between fulleropyrrolidines at the interface and the CNCs led to the assembly of robust hybrid films, which could be efficiently transferred onto solid substrates. Interestingly, ITO-electrodes that were modified with five-layer hybrid films exhibited enhanced electrical capacitance and produced anodic photocurrents at 0.4 V vs Ag/AgCl, whose intensity (230 nA/cm2) proved to be four times higher than the one that was observed with the sole fullerene derivative (60 nA/cm2).

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Recent Advances on Renewable and Biodegradable Cellulose Nanopaper Substrates for Transparent Light-Harvesting Devices: Interaction with Humid Environment

Cited by 20 publications

References 45 publications

Cellulose Nanopaper: Fabrication, Functionalization, and Applications

Cellulose Nanopaper: Fabrication, Functionalization, and Applications

Reductive Amination Reaction for the Functionalization of Cellulose Nanocrystals

Nanocellulose/Fullerene Hybrid Films Assembled at the Air/Water Interface as Promising Functional Materials for Photo-electrocatalysis

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