Antibacterial and Effective Air Filtration Membranes by “Green” Electrospinning and Citric Acid Crosslinking

Zhu, Miaomiao; Hua, Dawei; Zhong, Ming; Zhang, Lingfeng; Wang, Fang; Gao, Buhong; Xiong, Ranhua; Huang, Chaobo

doi:10.1016/j.colcom.2018.01.002

Cited by 42 publications

(28 citation statements)

References 33 publications

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“…While the electrospinning process is regarded as a promising method for manufacturing effective filter media, potential risks associated with harmful organic vapor generated from the process need to be carefully monitored [ 177 ]. As the ‘green electrospinning’ method, solvent-free electrospinning [ 178 , 179 , 180 ] and electrospinning with non-toxic solvents [ 180 , 181 , 182 , 183 , 184 ] are being studied. Electrospinning with an aqueous pre-spinning solution can easily achieve the non-toxic manufacturing, but its vulnerability to moisture remains as a drawback.…”

Section: Multi-functional Filter Developmentmentioning

confidence: 99%

Advanced Design of Fiber-Based Particulate Filters: Materials, Morphology, and Construction of Fibrous Assembly

Jung

Kim

2020

Polymers

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With increasing air pollution and sporadic outbreaks of epidemics, there is ramping attention on the filtration devices. The main constituents of airborne pollutants are particulate matters of solid particles, liquid aerosol, bioaerosol/bio-droplets, and gas/vapor. With the growing demand for high-performance filters, novel materials and functionalities are being developed applying advanced technologies. In this paper, recent developments of fiber-based particulate filters are reviewed, with a focus on the important performance parameters and material properties. Trends in technology and research activities are briefly reviewed, and the evaluative measures of filtration performance are reported. Recent studies on the advanced filter materials are reviewed in the aspect of polymers and the fabrication process of fibrous assembly. The characterization method including 3D modeling and simulation is also briefly introduced. Multifunctional filters such as antimicrobial filter and gas and particulate filters are briefly introduced, and efforts for developing environmentally sustainable filters are noted.

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Section: Multi-functional Filter Developmentmentioning

confidence: 99%

Advanced Design of Fiber-Based Particulate Filters: Materials, Morphology, and Construction of Fibrous Assembly

Jung

Kim

2020

Polymers

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“…In developing countries, environmental issues dominated by pollution particles have widely attracted public attention . Particulate matter (PM) such as PM 2.5 and PM 10 pose a serious threat to human health .…”

Section: Introductionmentioning

confidence: 99%

“…Electrospinning is a general technology for preparing nanofiber membranes, and it is controllable, scalable, and economical . Compared with conventional filtration media, the nanofiber membrane fabricated by electrospinning displays an excellent filtration performance with high‐filtration efficiency, low pressure drop due to the small fiber diameter, high porosity, and a remarkable surface area to volume ratio . Many kinds of high‐molecular‐weight polymers, including polyacrylonitrile (PAN), polyvinylpyrrolidone (PVP), polystyrene (PS), polyvinyl alcohol (PVA), and polypropylene (PP), have been processed into nanofibers by electrospinning for applications as air filters .…”

Section: Introductionmentioning

confidence: 99%

Electrospinning polyethylene terephthalate/SiO₂ nanofiber composite needle felt for enhanced filtration performance

Guo

Liu

2019

J of Applied Polymer Sci

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In this study, polyethylene terephthalate (PET) nanofiber membrane fabricated by electrospinning was newly applied to needle-felt filters. The PET nanofiber membrane was electrospun in an optimal condition. Nanoparticles (SiO 2 ) were used to reduce the fiber diameter. Polyphenylene sulfide needle felt (PPS NF), hot melt adhesive film, and PET nanofiber membrane were compounded into sandwich-structured composite needle felt (PET/SiO 2 NNF) by heat treatment. The dynamic filtration performance of PET/SiO 2 NNF was compared with that of PPS NF and polytetrafluoroethylene-coated needle felt (PTFE CNF). The results showed that PET/SiO 2 NNF had a lower rate of increase of pressure drop and a higher dust removal rate. The completion cycle of PET/SiO 2 NNF was longer than PPS NF and PTFE CNF, which extended its service life in real applications. The successful synthesis of PET/SiO 2 NNF suggested a new method to synthesize an innovative high-performance needle-felt filter.

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“…The diameter of electrospun nanofibers ranges from a few nanometers to micrometers . Electrospun nanofibers have been widely used in industries such as controlled drug delivery, air filtration, and wound dressings . A significant feature of electrospun nanofibers is their high specific surface areas, which can exactly meet the requirement of oil–water separation.…”

Section: Introductionmentioning

confidence: 99%

Fabrication of superhydrophobic electrospun polyimide nanofibers modified with polydopamine and polytetrafluoroethylene nanoparticles for oil–water separation

Liu

Zhang

et al. 2019

J of Applied Polymer Sci

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The oil-water separation technologies of removing oil pollutants from water in an efficient and economical way is a challenge. The current methods used for oil-water separation suffer many shortcomings, including a low separation efficiency, complex separation equipment, high operation costs, and secondary pollution. In this study, we fabricated a highly flexible, high-intensity, quite stable superhydrophobic and superoleophilic polyimide (PI) nanofibrous membranes, which are much more efficient and cost efficient for oil-water separation by modifying the membranes with a polydopamine (PDA) solution and polytetrafluoroethylene (PTFE) dispersion. The fabricated membrane (PDA-PTFE-PI) possesses both the high tensile stress of PI and the superhydrophobic and superlipophilic properties of the PDA-PTFE coating. The modified membrane could separate various oil-water mixtures efficiently at a high flux (6000 LÁm −2 Áh −1 ) and an extremely high efficiency (>99%). Furthermore, even when the membrane was under an extremely hostile environment (with an ultrahigh temperature, strong acidity, or strong basicity), it still remained quickly stable with a good separation efficiency and recyclability after 10 cycles. We anticipate that our study will provide a new technology for the highly efficient mass production of oil-water mixture management.

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Antibacterial and Effective Air Filtration Membranes by “Green” Electrospinning and Citric Acid Crosslinking

Cited by 42 publications

References 33 publications

Advanced Design of Fiber-Based Particulate Filters: Materials, Morphology, and Construction of Fibrous Assembly

Advanced Design of Fiber-Based Particulate Filters: Materials, Morphology, and Construction of Fibrous Assembly

Electrospinning polyethylene terephthalate/SiO₂ nanofiber composite needle felt for enhanced filtration performance

Fabrication of superhydrophobic electrospun polyimide nanofibers modified with polydopamine and polytetrafluoroethylene nanoparticles for oil–water separation

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Antibacterial and Effective Air Filtration Membranes by “Green” Electrospinning and Citric Acid Crosslinking

Cited by 42 publications

References 33 publications

Advanced Design of Fiber-Based Particulate Filters: Materials, Morphology, and Construction of Fibrous Assembly

Advanced Design of Fiber-Based Particulate Filters: Materials, Morphology, and Construction of Fibrous Assembly

Electrospinning polyethylene terephthalate/SiO2 nanofiber composite needle felt for enhanced filtration performance

Fabrication of superhydrophobic electrospun polyimide nanofibers modified with polydopamine and polytetrafluoroethylene nanoparticles for oil–water separation

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Electrospinning polyethylene terephthalate/SiO₂ nanofiber composite needle felt for enhanced filtration performance