Rationally designed high-performance Zr(OH)4@PAN nanofibrous membrane for self-detoxification of mustard gas simulant under an ambient condition

Qiu, Feng; Xia, Yuguo; Wu, Ting; Ye, Pingwei; Jiao, Xiuling; Chen, Dairong

doi:10.1016/j.seppur.2020.117452

Cited by 15 publications

(15 citation statements)

References 41 publications

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“…Inspired by the formation mechanism of the porous structure in cooked wheaten food, − we designed the nanofiber-based 3D porous materials that are transformed from the electrospun 2D nanofibrous membrane. First, the superhydrophilic Zr(OH) 4 @polyacrylonitrile (PAN) nanofibrous membrane was selected as an example to demonstrate the availability of the designed strategy . The fabrication procedure of the Zr(OH) 4 @PAN 3D NPM is shown schematically in Figure a.…”

Section: Resultsmentioning

confidence: 99%

“…First, the superhydrophilic Zr(OH) 4 @polyacrylonitrile (PAN) nanofibrous membrane was selected as an example to demonstrate the availability of the designed strategy. 17 The fabrication procedure of the Zr(OH) 4 @PAN 3D NPM is shown schematically in Figure 1a. Due to the superhydrophilicity of the membrane and the ability of Zr(IV) to catalyze the decomposition of H 2 O 2 , 18,19 H 2 O 2 aqueous solution was used to form a liquid film and generate gas.…”

Section: Resultsmentioning

confidence: 99%

“…At first, the 2D NFM of Zr(OH) 4 @ PAN was selected to fabricate the corresponding 3D NPM, which was prepared by the electrospinning method using PAN, DMF, and ZrCl 4 as source materials, as described in our previous report. 17 Typically, 1 g of PAN was dissolved into 10 mL of DMF under stirring. Then, 1.5 g of ZrCl 4 was added into the above solution to form a spinnable sol, which is used as a precursor to obtain the ZrCl 4 @PAN nanofibrous membrane by electrospinning.…”

Section: Methodsmentioning

confidence: 99%

Section: Experimental Sectionmentioning

confidence: 99%

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Anisotropic 3D Nanofibrous Porous Material Fabrication by a Liquid Film-Assisted Gas Templating Strategy for Thermal Insulation

Qiu

Xia

et al. 2021

ACS Appl. Nano Mater.

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In the last decade, three-dimensional nanofibrous porous materials (3D NPMs) have been attracting widespread interest ranging from thermal insulation to biological engineering. However, their practical application is always limited by the complex and high-cost fabrication process. Here, inspired by the mechanism of fermentation to produce cooked wheaten food, a general scalable strategy, namely, liquid film-assisted gas templating, is designed to fabricate anisotropic 3D NPMs from two-dimensional nanofibrous membranes (2D NFMs) without the tedious and time-consuming fabrication process. The successive production of gas promotes the bending of nanofiber layers and the increase of the gap between the adjacent layers, thereby forming numerous new interconnections, leading to cellular pore structures. Attributing to the maintenance of the continuous nature of the fibers and their layers, as well as the formation of new joints, the as-prepared 3D NPM exhibits anisotropic and superior mechanical properties. The high porosity and low density of the 3D NPM endow it with an outstanding thermal insulation performance, and the thermal conductivity can reach up to 0.045 W m −1 K −1 . Additionally, the 3D NPM also shows potential applications in terms of oil adsorption, waterproofing, and gas permeability. Finally, the criteria for this process are given based on theoretical simulation and analysis, and the universality of this strategy has been confirmed through fabricating various 3D NPMs of inorganic, organic, and composite materials.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Experimental Sectionmentioning

confidence: 99%

See 2 more Smart Citations

Anisotropic 3D Nanofibrous Porous Material Fabrication by a Liquid Film-Assisted Gas Templating Strategy for Thermal Insulation

Qiu

Xia

et al. 2021

ACS Appl. Nano Mater.

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“…PAN@Zr(OH) 4 nanofiber membranes were prepared by an electrospinning and ammonia-induced conversion method. 40 Specifically, 1.0 g of PAN and 1.5 g of ZrCl 4 were dissolved in 10 mL of DMF under stirring to obtain a light yellow clear sol precursor for electrospinning. A metal needle with an inner diameter of 0.6 mm was used with a pushing speed of 0.5 mL h −1 under an electrostatic voltage of 15 kV.…”

Section: Introductionmentioning

confidence: 99%

Dual-Function Detoxifying Nanofabrics against Nerve Agent and Blistering Agent Simulants

Qiu

et al. 2023

ACS Appl. Mater. Interfaces

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The development of functional materials that can detoxify multiple chemical warfare agents (CWAs) at the same time is of great significance to cope with the uncertainty of CWA use in real-world situations. Although many catalysts capable of detoxifying CWAs have been reported, there is still a lack of effective means to integrate these catalytic-active materials on practical fibers/fabrics to achieve effective protection against coexistence of a variety of CWAs. In this work, by a combination of electrospinning and in situ solvothermal reaction, PAN@Zr(OH)4@MOF-808 nanofiber membranes were prepared for detoxification of both nerve agent and blistering agent simulants dimethyl 4-nitrophenyl phosphate (DMNP) and 2-chloroethyl ethyl sulfide (CEES). Under the catalytic effect of the MOF-808 component, DMNP hydrolysis with a half-life as short as 1.19 min was achieved. Meanwhile, an 89.3% CEES removal rate was obtained within 12 h by adsorption and catalysis of MOF-808 and Zr(OH)4 components at ambient conditions, respectively. PAN@Zr(OH)4@MOF-808 nanofiber membranes also showed a superior blocking effect on CEES compared to bare PAN and PAN@Zr(OH)4 nanofiber membranes. Simultaneous protection against DMNP and CEES showed effective inhibition of both simulants for at least 2 h. The preparation method also imparted intrinsically good interfacial adhesion between the components, contributing to the excellent recycling stability of PAN@Zr(OH)4@MOF-808 nanofiber membranes. Therefore, the prepared composite nanofabrics have great application potential, which provides a new idea for the construction of broad-spectrum protective detoxification materials.

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Research of electret air filter: A review

Li,

Feng,

Chen

et al. 2024

Polymers for Advanced Techs

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The harmful effects of air pollution on humans are multifaceted and are closely linked to outbreaks of various infectious viruses. Thus, design of high‐performance air filters that are lightweight, flexible, and easy to prepare is urgent. The electret air filter can utilize the electrostatic force of charge to capture dust particles, making it efficient and convenient, which is highly favored by people. In this study, a summary of the research on electret filters for highly efficient air purification is presented. First, this study outlines the mechanisms of air filtration methods and discusses three factors that evaluate filter performance. The methods of manufacturing electret air filters are then presented, and the advantages and limitations of different methods are discussed. Then, electrification, including corona discharge, friction electrification, electrospinning, thermal electrification, and water electrification as methods, enhances the physical charge adsorption performance of materials, while the use of fluorinate polymer, non‐fluorinate polymer, and biobased polymer as functional substrates exhibits varying degrees of electrification effects. Different materials and manufacturing techniques give the filters additional advantages, such as being self‐degradable and antibacterial. Finally, the challenges that remain in the development of electret filters for use in air purification are also discussed in terms of material type and fabrication technology. It is expected that highly efficient air purification with low energy consumption can be achieved by electret filters with multifunctional capabilities.

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Rationally designed high-performance Zr(OH)4@PAN nanofibrous membrane for self-detoxification of mustard gas simulant under an ambient condition

Cited by 15 publications

References 41 publications

Anisotropic 3D Nanofibrous Porous Material Fabrication by a Liquid Film-Assisted Gas Templating Strategy for Thermal Insulation

Anisotropic 3D Nanofibrous Porous Material Fabrication by a Liquid Film-Assisted Gas Templating Strategy for Thermal Insulation

Dual-Function Detoxifying Nanofabrics against Nerve Agent and Blistering Agent Simulants

Research of electret air filter: A review

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