Facile and novel ambient pressure drying approach to synthesis and physical characterization of cellulose-based aerogels

Ebrahimi, Ali; Dahrazma, Behnaz; Adelifard, M.

doi:10.1007/s10934-020-00901-4

Cited by 27 publications

(14 citation statements)

References 45 publications

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“…Nevertheless, the FD process is also time consuming due to the long aging period of more than 2 days. Moreover, the FD process causes the destruction of the network structure during the crystallization of the pore liquids [ 106 ]. To resolve this issue during the fabrication of cellulose aerogels, a study was conducted to address the limitations of the process under ambient pressure by introducing naphthalene crystals to promote pore formation [ 106 ].…”

Section: Preparation Of Porous Polysaccharidesmentioning

confidence: 99%

“…Moreover, the FD process causes the destruction of the network structure during the crystallization of the pore liquids [ 106 ]. To resolve this issue during the fabrication of cellulose aerogels, a study was conducted to address the limitations of the process under ambient pressure by introducing naphthalene crystals to promote pore formation [ 106 ]. Nevertheless, both of these traditional techniques suffer from the lack of reproducible customization of the 3-D aerogel structures and the lack of easy fabrication of complex structures.…”

Section: Preparation Of Porous Polysaccharidesmentioning

confidence: 99%

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Recent Progress in Polysaccharide Aerogels: Their Synthesis, Application, and Future Outlook

Muhammad¹,

Lee²,

Shin³

et al. 2021

Polymers

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Porous polysaccharides have recently attracted attention due to their porosity, abundance, and excellent properties such as sustainability and biocompatibility, thereby resulting in their numerous applications. Recent years have seen a rise in the number of studies on the utilization of polysaccharides such as cellulose, chitosan, chitin, and starch as aerogels due to their unique performance for the fabrication of porous structures. The present review explores recent progress in porous polysaccharides, particularly cellulose and chitosan, including their synthesis, application, and future outlook. Since the synthetic process is an important aspect of aerogel formation, particularly during the drying step, the process is reviewed in some detail, and a comparison is drawn between the supercritical CO2 and freeze drying processes in order to understand the aerogel formation of porous polysaccharides. Finally, the current applications of polysaccharide aerogels in drug delivery, wastewater, wound dressing, and air filtration are explored, and the limitations and outlook of the porous aerogels are discussed with respect to their future commercialization.

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Section: Preparation Of Porous Polysaccharidesmentioning

confidence: 99%

Section: Preparation Of Porous Polysaccharidesmentioning

confidence: 99%

Recent Progress in Polysaccharide Aerogels: Their Synthesis, Application, and Future Outlook

Muhammad¹,

Lee²,

Shin³

et al. 2021

Polymers

View full text Add to dashboard Cite

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“…Drying is a process of extraordinary importance for the aerogel production process. Additionally, several procedures used in the drying process to achieve wet gel‐like supercritical drying (alcohol, acetone, CO 2 ) are used in the drying process, ambient pressure drying, 30 freeze‐drying, 31 etc., 32‐34 solvents in hydrogels are only transitioning conditions, and a solid framework can be obtained after completion of this process. In ambient drying, the surface tension of the pore capillary expansion to the pore wall is an important aspect to determine the failure of the structure 32 .…”

Section: Production Methodsmentioning

confidence: 99%

Organic aerogel as electro‐catalytic support in low‐temperature fuel cell

Osman

Kamarudin

Basri

et al. 2022

Intl J of Energy Research

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Fuel cells have been developed efficiently in recent years as a secure and highenergy conversion technology. The innovation in electrocatalysis focuses on initiatives to minimize or replace Pt electrodes used. As an alternative, organic aerogel materials are normally used as electrodes in low temperature fuel cells due to their high electronic conducting and electrocatalytic characteristics. These are usually characterized by fundamental functional elements of strong covalent C-C bonds from organic precursors. This review will mainly focus on organic aerogel nanomaterials related to carbon aerogels, carbon nanotube aerogels, and graphene aerogels as electrocatalytic supports by surface modification or structural features in catalysis. In contrast, organic aerogel materials prove to be durable, economical, and active electrocatalysts that can provide outstanding electrocatalytic efficiency in low temperature fuel cell applications. Last, this paper recaps the challenges faced in current fuel cell applications and the use of organic aerogel materials to address these challenges.

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“…152 However, in the process of freeze-drying, it is inevitable that higher shrinkage (10-12%), longer sublimation time (48 h), and the pore uid destroys the network structure during the crystallization process. 151,153 Facing the complex and changeable working environment of oil-water separation, when preparing polysaccharide-based aerogels for oil-water separation, the drying process and process parameters should be selected reasonably to prepare aerogels that meet the working conditions of oil-water separation and are environment-friendly.…”

Section: Comparison Of the Drying Processmentioning

confidence: 99%

Natural polysaccharide-based aerogels and their applications in oil–water separations: a review

Guo

2022

J. Mater. Chem. A

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Facile and novel ambient pressure drying approach to synthesis and physical characterization of cellulose-based aerogels

Cited by 27 publications

References 45 publications

Recent Progress in Polysaccharide Aerogels: Their Synthesis, Application, and Future Outlook

Recent Progress in Polysaccharide Aerogels: Their Synthesis, Application, and Future Outlook

Organic aerogel as electro‐catalytic support in low‐temperature fuel cell

Natural polysaccharide-based aerogels and their applications in oil–water separations: a review

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