Waste to wealth: Lightweight, mechanically strong and conductive carbon aerogels from waste tissue paper for electromagnetic shielding and CO2 adsorption

Linsha, Vazhayal; Wilson, Praveen; Prabhakaran, K.

doi:10.1016/j.cej.2019.122628

Cited by 82 publications

(44 citation statements)

References 63 publications

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“…Carbon materials, as important parts of EMI shielding [17], adsorption [18], catalysis and thermoelectric materials [19], have attracted wider attention. Carbon-based porous materials (such as aerogels, foams, and sponges) present unique 3D carbon skeleton structures, ultra-low density, excellent electrical conductivity (r) values, and good thermal stability, making them ideal candidates for ultra-light EMI shielding materials [20][21][22][23]. However, most carbon-based porous materials are internally crosslinked by weak hydrogen bonds and have poor mechanical properties.…”

Section: Introductionmentioning

confidence: 99%

Ultra-light MXene aerogel/wood-derived porous carbon composites with wall-like “mortar/brick” structures for electromagnetic interference shielding

et al. 2020

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Section: Introductionmentioning

confidence: 99%

Ultra-light MXene aerogel/wood-derived porous carbon composites with wall-like “mortar/brick” structures for electromagnetic interference shielding

et al. 2020

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“…The mechanical properties of cellulose‐based aerogels are presented by stress–strain curves (Figure 5). It is clearly seen that the compressive process of cellulose/MBA aerogels includes three typical of different stages: The linear elastic region (less than 20%) is due to the elastic deforming of the edges and walls of porous cells (the first stage); 48,49 The yield stage at the longer and plateau strain (20–60%) is derived from the compressive capacity of three dimensional network as well as the bend and collapse of macropores, resulting in the compressive stress rising very slowly(the second stage); 50 With the further increasing strain (> 60%), the stress of aerogels increases gradually because of the densification of samples after complete collapses of the porous structure(the third stage) 49 . The cellulose/MBA aerogel exhibited excellent mechanical properties higher than ECH/cellulose hydrogels 51 .…”

Section: Resultsmentioning

confidence: 99%

Controllable synthesis of cellulose/methylene bisacrylamide aerogels for enhanced adsorption performance

Song

Zhou

et al. 2020

J of Applied Polymer Sci

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Cellulose‐based aerogels have been regarded as potential adsorbent materials because of their unique structural features and chemical stability. Herein, we prepared the composite aerogels containing cellulose and N,N′‐methylene bisacrylamide (MBA) using N‐methylmorpholine‐N‐oxide (NMMO) as a green solvent via a freeze‐drying process. Owing to the strong chemical interaction between CC bonds of MBA and the functional groups of cellulose, as‐obtained cellulose/MBA aerogels present favorable MBA‐induced thermal/mechanical stable three‐dimensional network structure, in which the abundant macroporous structure, low density and high porosity lead to a significantly enhanced adsorption capacity (260.31 mg∙g−1) toward congo red dye in aqueous solution compared with the pure cellulose aerogels. Moreover, the effect of the cellulose concentration and cross‐linking degree on the morphology and adsorption properties for cellulose/MBA aerogels was systematically investigated. This present work provides a low‐cost and environmental‐friendly synthesis method for designing the functionalization of cellulose‐based aerogel, which may be achieved the advanced performance in wastewater treatment.

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“…In recent years, biomass materials and their derivatives (such as wood, sugarcane, cotton, bread, corrugated cardboard, paper tissue, etc.) have shown great potential in the field of EMI shielding owing to their advantages of rich sources, low cost, nontoxic, and natural 3D networks 32–38 . Jia et al 39 .…”

Section: Preparation Methods Of Polymer‐based Emi Shielding Materials With 3d Conductive Networkmentioning

confidence: 99%

Polymer‐based EMI shielding composites with 3D conductive networks: A mini‐review

Wang

Zhang

et al. 2021

SusMat

229

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High‐frequency electromagnetic waves and electronic products can bring great convenience to people's life, but lead to a series of electromagnetic interference (EMI) problems, such as great potential dangers to the normal operation of electronic components and human safety. Therefore, the research of EMI shielding materials has attracted extensive attention by the scholars. Among them, polymer‐based EMI shielding materials with light weight, high specific strength, and stable properties have become the current mainstream. The construction of 3D conductive networks has proved to be an effective method for the preparation of polymer‐based EMI shielding materials with excellent shielding effectiveness (SE). In this paper, the shielding mechanism of polymer‐based EMI shielding materials with 3D conductive networks is briefly introduced, with emphasis on the preparation methods and latest research progress of polymer‐based EMI shielding materials with different 3D conductive networks. The key scientific and technical problems to be solved in the field of polymer‐based EMI shielding materials are also put forward. Finally, the development trend and application prospects of polymer‐based EMI shielding materials are prospected.

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Waste to wealth: Lightweight, mechanically strong and conductive carbon aerogels from waste tissue paper for electromagnetic shielding and CO2 adsorption

Cited by 82 publications

References 63 publications

Ultra-light MXene aerogel/wood-derived porous carbon composites with wall-like “mortar/brick” structures for electromagnetic interference shielding

Ultra-light MXene aerogel/wood-derived porous carbon composites with wall-like “mortar/brick” structures for electromagnetic interference shielding

Controllable synthesis of cellulose/methylene bisacrylamide aerogels for enhanced adsorption performance

Polymer‐based EMI shielding composites with 3D conductive networks: A mini‐review

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