Bacterial cellulose/graphene oxide aerogels with enhanced dimensional and thermal stability

Pinto, Susana; Gonçalves, Gil; Sandoval, Stefania; López‐Periago, Ana M.; Borrás, Alejandro; Domingo, Concepción; Duarte, Isabel; Vicente, Romeu; Marques, Paula A.A.P.

doi:10.1016/j.carbpol.2019.115598

Cited by 59 publications

(35 citation statements)

References 63 publications

(57 reference statements)

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“…When a membrane or film is needed, water is extracted from the BC network by air-drying, hot-and cold-pressing or vacuum-filtration. BC-GO aerogel can be prepared from BC-based hydrogels by freeze-drying or by a supercritical CO 2 method [55][56][57].…”

Section: Processing Routesmentioning

confidence: 99%

Bacterial Cellulose—Graphene Based Nanocomposites

Troncoso

Torres

2020

IJMS

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Bacterial cellulose (BC) and graphene are materials that have attracted the attention of researchers due to their outstanding properties. BC is a nanostructured 3D network of pure and highly crystalline cellulose nanofibres that can act as a host matrix for the incorporation of other nano-sized materials. Graphene features high mechanical properties, thermal and electric conductivity and specific surface area. In this paper we review the most recent studies regarding the development of novel BC-graphene nanocomposites that take advantage of the exceptional properties of BC and graphene. The most important applications of these novel BC-graphene nanocomposites include the development of novel electric conductive materials and energy storage devices, the preparation of aerogels and membranes with very high specific area as sorbent materials for the removal of oil and metal ions from water and a variety of biomedical applications, such as tissue engineering and drug delivery. The main properties of these BC-graphene nanocomposites associated with these applications, such as electric conductivity, biocompatibility and specific surface area, are systematically presented together with the processing routes used to fabricate such nanocomposites.

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Section: Processing Routesmentioning

confidence: 99%

Bacterial Cellulose—Graphene Based Nanocomposites

Troncoso

Torres

2020

IJMS

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“…They described a simple way to improve the dimensional and mechanical stability of light and hydrophilic GO-based materials, especially in humid environments. This consisted of reducing the GO, removing functional groups containing oxygen, and consequently decreasing the original hydrophilicity of the material (Pinto et al 2020).…”

Section: Studies and Alternatives For A Hydrophobic Bacterial Cellulosementioning

confidence: 99%

“…The morphology and dimensional stability of 3D bacterial cellulose/graphene oxide (BC/GO) aerogels can be tailored to speci c needs, exploring different reduction strategies for enhanced interfacial hydrophobic-hydrophilic interactions between individual nanoelements (Pinto et al 2020). found that after the carbonization process, the BC/graphene spheres showed excellent capacity to absorb oils and organic solvents due to their highly porous surface, 3D interconnected structure and high mechanical stability, giving good hydrophobicity and elasticity results .…”

Section: Studies and Alternatives For A Hydrophobic Bacterial Cellulosementioning

confidence: 99%

Use of bacterial cellulose in the textile industry and the wettability challenge—a review

et al. 2021

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Bacterial cellulose (BC) has been studied as an alternative material in several segments of the food, pharmaceutical, materials and textile industries. The importance of BC is linked to sustainability goals, since it is an easily degradable biomaterial of low toxicity to the environment and is a renewable raw material. For use in the textile area, bacterial cellulose has attracted great interest from researchers, but it presents some challenges, notably hydrophilicity due to its porous structure. This bibliometric review article gathers studies and methods related to minimizing the hydrophilicity of bacterial cellulose in order to expand its applicability in the textile industry. The databases consulted were ScienceDirect, ProQuest and Web of Science, the documents investigated were scienti c articles and the time period investigated was between 2015 and 2021. The discussion is focused on the applicability of BC in the textile industry, highlighting the research needs, especially with regard to reducing wettability.

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“…Very recently, aerogel-based electrodes have shown promising applications in supercapacitors, since their high specific surface area and well inter-connected three-dimensional (3D) texture can load a high content of active materials [22][23][24]. The cellulose/carbon or cellulose/conducting polymers aerogels can be facilely prepared by the solvent mixing method [25][26][27], and the doping content and 3D microporosity can be tunable during the gelification process [28,29]. For instance, a 3D CNFs/PANI aerogel electrode has been prepared by the supramolecular self-assembly method by mixing of CNFs and PANI nanocomposite suspension.…”

Section: Introductionmentioning

confidence: 99%

Green Synthesis of Free Standing Cellulose/Graphene Oxide/Polyaniline Aerogel Electrode for High-Performance Flexible All-Solid-State Supercapacitors

Xia

Gong

et al. 2020

Nanomaterials

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The cellulose/graphene oxide (GO) networks as the scaffold of free-standing aerogel electrodes are developed by using lithium bromide aqueous solution, as the solvent, to ensure the complete dissolution of cotton linter pulp and well dispersion/reduction of GO nanosheets. Polyaniline (PANI) nanoclusters are then coated onto cellulose/GO networks via in-situ polymerization of aniline monomers. By optimized weight ratio of GO and PANI, the ternary cellulose/GO3.5/PANI aerogel film exhibits well-defined three-dimensional porous structures and high conductivity of 1.15 S/cm, which contributes to its high areal specific capacitance of 1218 mF/cm2 at the current density of 1.0 mA/cm2. Utilizing this cellulose/GO3.5/PANI aerogel film as electrodes in a symmetric configuration supercapacitor can result in an outstanding energy density as high as 258.2 µWh/cm2 at a power density of 1201.4 µW/cm2. Moreover, the device can maintain nearly constant capacitance under different bending deformations, suggesting its promising applications in flexible electronics.

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Bacterial cellulose/graphene oxide aerogels with enhanced dimensional and thermal stability

Cited by 59 publications

References 63 publications

Bacterial Cellulose—Graphene Based Nanocomposites

Bacterial Cellulose—Graphene Based Nanocomposites

Use of bacterial cellulose in the textile industry and the wettability challenge—a review

Green Synthesis of Free Standing Cellulose/Graphene Oxide/Polyaniline Aerogel Electrode for High-Performance Flexible All-Solid-State Supercapacitors

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