Hierarchical Porous Recycled PET Nanofibers for High-Efficiency Aerosols and Virus Capturing

Song, Jun; Zhao, Qi; Chen, Meng; Meng, Jinmin; Chen, Zhongda; Li, Jiashen

doi:10.1021/acsami.1c17157

Cited by 22 publications

(24 citation statements)

References 45 publications

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“…To investigate the structural evolution of PET fibers during in situ growth and surface modification, the as-fabricated samples were characterized by XRD, and the corresponding XRD results are shown in Figure a. In XRD patterns, the Coca-Cola bottle shows only very broad and diffuse patterns, the amorphous nature of the PET plastics . PET shows three characteristic peaks at 2θ of 17.3, 22.2, and 25.8°.…”

Section: Resultsmentioning

confidence: 99%

“…However, the preparation processes, involving pretreatment, crystal growth, and high-temperature calcination, are somewhat complicated and unsuitable for large-scale production. Another more recent report by Song et al 40 fabricated recycled polyethylene terephthalate (PET) fibrous aerosols to capture the virus, which could combine the advantages of PET fibrous materials of a hierarchical porous structure and strong chemical bonds. Inspired by this, it should be interesting to fabricate the PET membrane material using waste PET plastics as raw materials for oily wastewater treatment.…”

Section: Introductionmentioning

confidence: 99%

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Superhydrophobic PET@ZnO Nanofibrous Membrane Extract from Waste Plastic for Efficient Water-In-Oil Emulsion Separation

Xiong

Tian

Yue

et al. 2022

Ind. Eng. Chem. Res.

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Waste plastics and oil pollution from industry and daily life have posed a serious threat to the environment, and it is the general trend to resource recycle them. Herein, this work presents a sustainable and environmentally friendly strategy for fabricating the superhydrophobic polyethylene terephthalate@ZnO nanofibrous membrane (PET@ZnO membrane) using Coca-Cola plastic bottles as raw materials, as well as its application in oil–water separation. In this strategy, the PET membranes were fabricated by combining the dual-solvent dissolution treatment and electrospinning processes. Then, the superhydrophobic PET@ZnO membrane with hierarchical architectures was fabricated by in situ growth of hierarchical ZnO nanopillars on the PET fiber surfaces, followed by hydrophobic modification. The obtained superhydrophobic PET@ZnO membrane shows an interconnected structure and superhydrophobic properties with a static water contact angle of 153 ± 2°. Moreover, the superhydrophobic PET@ZnO membrane has excellent repellence toward a corrosive solution, implying excellent chemical stability. The separation efficiency of various water-in-oil emulsions was higher than 99.6%, solely employing the gravity-driven process. Most importantly, there is no significant effect on the separation properties and still maintains a remarkable separation efficiency of almost 99.7%, while the separation flux was retained above 992 L m–2 h–1 after using the same membrane for 10 subsequent cycles. Therefore, this work not only provides a high-value-added strategy for resource recycling of waste plastic and oil but also gives an excellent membrane material with stable chemical properties for applications in wastewater treatment and chemical separation.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Superhydrophobic PET@ZnO Nanofibrous Membrane Extract from Waste Plastic for Efficient Water-In-Oil Emulsion Separation

Xiong

Tian

Yue

et al. 2022

Ind. Eng. Chem. Res.

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show abstract

“…Firstly, the recycled PET was electrospun into a fibrous membrane and then the membrane was dip-coated with polydimethylsiloxane (PDMS) [ 88 ]. In another study by Li et al, hierarchical porous recycled PET was manufactured into fibers, also via two steps: electrospinning and solvent post-treatment, which showed the high efficiency of aerosols and virus capture [ 97 ]. Figure 4 illustrates the whole preparation process of the mentioned fibers in [ 97 ].…”

Section: Typical Polymer Waste and Reutilization Via Electrospinningmentioning

confidence: 99%

Recycling and Reutilizing Polymer Waste via Electrospun Micro/Nanofibers: A Review

Peng

Deng

et al. 2022

Nanomaterials

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The accumulation of plastic waste resulting from the increasing demand for non-degradable plastics has led to a global environmental crisis. The severe environmental and economic drawbacks of inefficient, expensive, and impractical traditional waste disposal methods, such as landfills, incineration, plastic recycling, and energy production, limit the expansion of their applications to solving the plastic waste problem. Finding novel ways to manage the large amount of disposed plastic waste is urgent. Until now, one of the most valuable strategies for the handling of plastic waste has been to reutilize the waste as raw material for the preparation of functional and high-value products. Electrospun micro/nanofibers have drawn much attention in recent years due to their advantages of small diameter, large specific area, and excellent physicochemical features. Thus, electrospinning recycled plastic waste into micro/nanofibers creates diverse opportunities to deal with the environmental issue caused by the growing accumulation of plastic waste. This paper presents a review of recycling and reutilizing polymer waste via electrospinning. Firstly, the advantages of the electrospinning approach to recycling plastic waste are summarized. Then, the studies of electrospun recycled plastic waste are concluded. Finally, the challenges and future perspectives of electrospun recycled plastic waste are provided. In conclusion, this paper aims to provide a comprehensive overview of electrospun recycled plastic waste for researchers to develop further studies.

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“…In another study, PET bottles were recycled into electrospun fibers, which were successfully employed for air filtration against PM-2.5 particles and a fluorescent virus-mimicking protein. 31 Similarly, Bonfim et al reported the development of electrospun microfibrous membranes from PET wastes and their practical use as air filtration material. 32 Nevertheless, the application of recycled PET (rPET) fibers produced by electrospinning to remove crude oil and derivatives has not been reported to date.…”

Section: ■ Introductionmentioning

confidence: 99%

“…The fibers were prepared by electrospinning from trifluoroacetic acid (TFA) solutions. In another study, PET bottles were recycled into electrospun fibers, which were successfully employed for air filtration against PM-2.5 particles and a fluorescent virus-mimicking protein . Similarly, Bonfim et al reported the development of electrospun microfibrous membranes from PET wastes and their practical use as air filtration material .…”

Section: Introductionmentioning

confidence: 99%

Valorization of Polyethylene Terephthalate (PET) Plastic Wastes as Nanofibrous Membranes for Oil Removal: Sustainable Solution for Plastic Waste and Oil Pollution

Topuz

Oldal

Székely

2022

Ind. Eng. Chem. Res.

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The accumulation of plastic wastes has become a global environmental issue, because of their ever-growing production, slow degradation, and potential environmental hazards. Consequently, reducing their presence in the environment by upcycling has sparked tremendous research interest. Herein, we report the valorization of poly(ethylene terephthalate) (PET) plastic wastes to produce nanofibrous adsorptive membranes for their applications in oil removal. In this study, plastic wastes derived from PET bottles were dissolved in trifluoroacetic acid (TFA) or a TFA/ dichloromethane (DCM) binary solvent system and then electrospun into nanofibrous recycled PET (rPET) membranes. The nanofiber morphology was tuned by adjusting the polymer concentration. The nanofibers produced via electrospinning from TFA solutions were more uniform than those produced using TFA/DCM. The influence of acid-mediated recycling on the PET structure was explored via thermogravimetric and X-ray photoelectron spectroscopy analyses. A dynamic mechanical analysis showed that the membranes exhibited high flexibility with effective Young's moduli. The sorption capacities of the nanofibrous PET membranes for crude oil, diesel, gasoline, and pump oil were 22.9 ± 2, 19.6 ± 1.8, 11.1 ± 1, and 19.3 ± 1.6 g g −1 , respectively. The membrane could be recycled by squeezing and reused five times for oil removal while maintaining an sorption capacity of >75%. After the sorption tests, an apparent increase in the fiber diameter was observed due to the oil uptake into the fiber matrix. The present study provides a sustainable solution to plastic and oil pollution management, minimizing the production of new carbonbased materials and lowering carbon emissions. This work aligns with the United Nations' Sustainable Development Goals, specifically, Goal #12 on responsible consumption and production and #14 on life below water.

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Hierarchical Porous Recycled PET Nanofibers for High-Efficiency Aerosols and Virus Capturing

Cited by 22 publications

References 45 publications

Superhydrophobic PET@ZnO Nanofibrous Membrane Extract from Waste Plastic for Efficient Water-In-Oil Emulsion Separation

Superhydrophobic PET@ZnO Nanofibrous Membrane Extract from Waste Plastic for Efficient Water-In-Oil Emulsion Separation

Recycling and Reutilizing Polymer Waste via Electrospun Micro/Nanofibers: A Review

Valorization of Polyethylene Terephthalate (PET) Plastic Wastes as Nanofibrous Membranes for Oil Removal: Sustainable Solution for Plastic Waste and Oil Pollution

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