Effects of nanocellulose on sodium alginate/polyacrylamide hydrogel: Mechanical properties and adsorption-desorption capacities

Yue, Yiying; Wang, Xianhui; Yu, Lei; Chen, Jianqiang; Wu, Qinglin; Jiang, Jianchun

doi:10.1016/j.carbpol.2018.10.105

Cited by 187 publications

(76 citation statements)

References 61 publications

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“…Besides, the test results show that it contains N elements. The N elements are mainly from cellulose, the main component of blotting paper, that contains certain nitrogen, which was reported in previous works [46,[49][50]. As shown in Figure 3d, the atomic binding state of N in GBPC-1 was equipped with four components corresponding to pyridine N (N-6), pyrrole N (N-5), and quaternary N (N-Q), respectively.…”

Section: Characterizations Of Gbpcssupporting

confidence: 59%

Blotting Paper-Derived Activated Porous Carbon/Reduced Graphene Oxide Composite Electrodes for Supercapacitor Applications

Jiang

Liu

et al. 2019

Molecules

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A facile strategy, engineered for low-cost mass production, to synthesize biomass-derived activated carbon/reduced graphene oxide composite electrodes (GBPCs) by one-pot carbonization of blotting papers containing graphene oxide (GO) and zinc chloride (ZnCl2) was proposed. Benefitting from the water absorption characteristic of blotting papers in which the voids between the celluloses can easily absorb the GO/ZnCl2 solution, the chemical activation and reduction of GO can synchronously achieve via one-step carbonization process. As a result, the GBPCs deliver a large specific surface area to accumulate charge. Simultaneously, it provides high conductivity for electron transfer. The symmetric supercapacitor assembled with the optimal GBPCs in 6 M KOH electrolyte exhibits an excellent specific capacitance of 204 F g−1 (0.2 A g−1), outstanding rate capability of 100 F g−1 (20 A g−1). Meanwhile, it still keeps 90% of the initial specific capacitance over 10,000 cycles. The readily available raw material, effective chemical activation, simple rGO additive, and resulting electrochemical properties hold out the promise of hope to achieve low-cost, green, and large-scale production of practical activated carbon composite materials for high-efficiency energy storage applications.

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Section: Characterizations Of Gbpcssupporting

confidence: 59%

Blotting Paper-Derived Activated Porous Carbon/Reduced Graphene Oxide Composite Electrodes for Supercapacitor Applications

Jiang

Liu

et al. 2019

Molecules

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“…Subsequently the cross-linking agent MBA (0.018 g) and the initiator KPS (0.036 g) were introduced and the mixture was stirred vigorously for 1 h. Following degassing, the mixture was injected into a reaction mold at 50 °C for 4 h to build the first covalent network. Afterwards, the as-prepared hydrogel was transferred to a 0.5 mol/L CaCl 2 solution and kept for 6 h to construct the IPN-structured hydrogel [10]. The obtained hydrogel was designated as PAAM-SA-CNT.…”

Section: Methodsmentioning

confidence: 99%

“…Constructing an interpenetrating polymer network (IPN) that is based on two independently cross-linked polymer networks is an effective method to enhance the stiffness and strength of hydrogels [5,10]. With enhanced mechanic strength and better rheological performance, hydrogels could be easily separated from an aqueous environment.…”

Section: Introductionmentioning

confidence: 99%

“…With enhanced mechanic strength and better rheological performance, hydrogels could be easily separated from an aqueous environment. An IPN-structured hydrogel could be constructed by chemically or physically cross-linking polyacrylamide (PAAM) and sodium alginate (SA) [10,11]. PAAM with the side amine and carbonyl functional groups could effectively adsorb heavy metal ions [12].…”

Section: Introductionmentioning

confidence: 99%

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Assembly of Polyacrylamide-Sodium Alginate-Based Organic-Inorganic Hydrogel with Mechanical and Adsorption Properties

Yue

Wang

et al. 2019

Polymers

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Hydrogels have been widely used in water purification. However, there is not much discussion and comparison about the effects of different nanofillers on the reinforcement and adsorption performances of hydrogels, which can be subjected to rapid water flow and possess strong adsorption ability. In this work, polyacrylamide (PAAM)-sodium alginate (SA) interpenetrating polymer network-structured hydrogels were prepared by in situ polymerization. PAAM formed the first flexible network and SA constructed the second rigid network. Three kinds of inorganic nanoparticles including carbon nanotubes (CNTs), nanoclays (NCs), and nanosilicas (NSs) were incorporated into a PAAM-SA matrix via hydrogen bond. The obtained hydrogels exhibited a macroporous structure with low density (≈1.4 g/cm3) and high water content (≈83%). Compared with neat PAAM-SA, the hydrogels with inorganic nanoparticles possessed excellent mechanical strengths and elasticities, and the compression strength of PAAM-SA-NS reached up to 1.3 MPa at ε = 60% by adding only 0.036 g NS in a 30 g polymer matrix. However, CNT was the best filler to improve the adsorption capacity owing to its multi-walled hollow nanostructure, and the adsorption capacity of PAAM-SA-CNT was 1.28 times higher than that of PAAM-SA. The prepared hydrogels can be potential candidates for use as absorbents to treat wastewater.

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“…In order to achieve multi-function for nanofiber-based food packaging materials, various fillers have been added into polymer substance, especially inorganic fillers that possess conductivity, magnetism, antibacterial property, etc. [98][99][100][101]. Then, a nanofiber-based food packaging material could be prepared through the electrospinning technique.…”

Section: Addition Of Inorganic Fillersmentioning

confidence: 99%

Electrospun Functional Materials toward Food Packaging Applications: A Review

et al. 2020

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Electrospinning is an effective and versatile method to prepare continuous polymer nanofibers and nonwovens that exhibit excellent properties such as high molecular orientation, high porosity and large specific surface area. Benefitting from these outstanding and intriguing features, electrospun nanofibers have been employed as a promising candidate for the fabrication of food packaging materials. Actually, the electrospun nanofibers used in food packaging must possess biocompatibility and low toxicity. In addition, in order to maintain the quality of food and extend its shelf life, food packaging materials also need to have certain functionality. Herein, in this timely review, functional materials produced from electrospinning toward food packaging are highlighted. At first, various strategies for the preparation of polymer electrospun fiber are introduced, then the characteristics of different packaging films and their successful applications in food packaging are summarized, including degradable materials, superhydrophobic materials, edible materials, antibacterial materials and high barrier materials. Finally, the future perspective and key challenges of polymer electrospun nanofibers for food packaging are also discussed. Hopefully, this review would provide a fundamental insight into the development of electrospun functional materials with high performance for food packaging.

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Effects of nanocellulose on sodium alginate/polyacrylamide hydrogel: Mechanical properties and adsorption-desorption capacities

Cited by 187 publications

References 61 publications

Blotting Paper-Derived Activated Porous Carbon/Reduced Graphene Oxide Composite Electrodes for Supercapacitor Applications

Blotting Paper-Derived Activated Porous Carbon/Reduced Graphene Oxide Composite Electrodes for Supercapacitor Applications

Assembly of Polyacrylamide-Sodium Alginate-Based Organic-Inorganic Hydrogel with Mechanical and Adsorption Properties

Electrospun Functional Materials toward Food Packaging Applications: A Review

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