Separation and Purification Technology, Год журнала: 2024, Номер 348, С. 127772 - 127772
Опубликована: Май 1, 2024
Язык: Английский
Advanced Materials Technologies, Год журнала: 2023, Номер 8(11)
Опубликована: Май 5, 2023
Abstract Electrospinning has rapidly progressed over the past few decades as an easy and versatile way to fabricate fibers with diameters ranging from micrometers tens of nanometers that present unique intricate morphologies. This led conception new technologies diverse methods exploit basic electrohydrodynamic phenomena electrospinning process, which in turn invention novel apparatuses have reshaped field. Research on revamping conventional principally focused achieving three key objectives: upscaling process while retaining consistent morphological traits, developing 3D nanofibrous macrostructures, formulating fiber configurations. review introduces extensive group techniques presents a comperative study based apparatus type output. Then, each process's advantages limitations are critically assessed identify bona fide practicability relevance technological breakthrough. Finally, outlook future developments advanced is outlined, emphasis upscaling, translational research, sustainable manufacturing prospective solutions current shortcomings.
Язык: Английский
Процитировано
198
Polymers, Год журнала: 2023, Номер 15(4), С. 921 - 921
Опубликована: Фев. 12, 2023
Electrospun porous nanofibers have gained a lot of interest recently in various fields because their adjustable structure, high specific surface area, and large number active sites, which can further enhance the performance materials. This paper provides an overview common polymers, preparation, applications electrospun nanofibers. Firstly, polymers commonly used to construct structures main pore-forming methods by electrospinning, namely template method phase separation method, are introduced. Secondly, recent air purification, water treatment, energy storage, biomedicine, food packaging, sensor, sound wave absorption, flame retardant, heat insulation reviewed. Finally, challenges possible research directions for future study discussed.
Язык: Английский
Процитировано
79
ACS Applied Materials & Interfaces, Год журнала: 2023, Номер 15(21), С. 25919 - 25931
Опубликована: Май 16, 2023
Despite the great potential in fabrication of biodegradable and eco-friendly air filters by electrospinning poly(lactic acid) (PLA) membranes, filtering performance is frequently dwarfed inadequate physical sieving or electrostatic adsorption mechanisms to capture airborne particulate matters (PMs). Here, using parallel spinning approach, unique micro/nanoscale architecture was established conjugation neighboring PLA nanofibers, creating bimodal fibers electrospun membranes for enhanced slip effect significantly reduce resistance. Moreover, bone-like nanocrystalline hydroxyapatite bioelectret (HABE) exploited enhance dielectric polarization properties PLA, accompanied controlled generation junctions induced microaggregation HABE (10-30 wt %). The incorporated supposed orderly align applied E-field largely promote charging capability surface potential, gradually increasing 7.2 kV from lowest level 2.5 pure PLA. This mainly attributed HABE-induced orientation backbone chains C═O dipoles, as well interfacial charges trapped at interphases HABE-PLA crystalline region-amorphous Given multiple capturing mechanisms, micro/nanostructured PLA/HABE were characterized excellent sustainable performance, e.g., filtration efficiency PM0.3 promoted 59.38% 94.38% after addition 30 % a moderate airflow capacity 32 L/min 30.78 83.75% highest 85 L/min. It interest that pressure drop decreased, arising between ultrafine nanofibers conjugated microfibers. proposed combination nanostructured electret multistructuring strategy offers function integration efficient low resistance are highly useful pursue fully filters.
Язык: Английский
Процитировано
48
ACS Sustainable Chemistry & Engineering, Год журнала: 2024, Номер 12(9), С. 3554 - 3564
Опубликована: Фев. 1, 2024
Development of poly(lactic acid) (PLA) nanofibrous membranes (NFMs) holds great potential to replace the conventional nondegradable air filters, but is largely thwarted by intrinsically low electroactivity and poor electret properties PLA. Here, highly electroactive PLA NFMs coupling triboelectric nanogenerator (TENG)-based recharging mechanisms are demonstrated for long-term respiratory protection from fine ultrafine particulate matters (PM0.3 PM2.5), as well wireless intelligent monitoring physiological characters. To enhance in situ self-charging NFMs, we proposed a stereocomplexation strategy involving direct electrospinning PLLA/PDLA nanofibers (approaching 500 nm), conferring remarkable promotion phases, dielectric properties, surface (over 10 kV), output (nearly 20 V at humanoid breathing conditions). Benefiting well-tailored morphology features, exhibited high (180 V) excellent filtration performance (96.32% PM2.5 92.09% PM0.3) while providing desirable resistance (only ∼200 Pa even 85 L/min), far surpassing those pristine PLLA counterpart (60 V, 72.92%, 281 Pa, respectively). This was accompanied high-sensitivity vivo cardiorespiratory characters such coughing breathing, essentially arising respiration-triggered distinct TENG mechanisms. Featuring efficient noninvasive monitoring, our biodegradable appealing healthcare real-time monitoring.
Язык: Английский
Процитировано
30
International Journal of Biological Macromolecules, Год журнала: 2024, Номер 260, С. 129566 - 129566
Опубликована: Янв. 20, 2024
Язык: Английский
Процитировано
27
International Journal of Biological Macromolecules, Год журнала: 2024, Номер 262, С. 130135 - 130135
Опубликована: Фев. 12, 2024
Язык: Английский
Процитировано
26
Separation and Purification Technology, Год журнала: 2024, Номер 354, С. 128886 - 128886
Опубликована: Июль 28, 2024
Язык: Английский
Процитировано
22
Nano Letters, Год журнала: 2024, Номер 24(8), С. 2643 - 2651
Опубликована: Фев. 14, 2024
Developing high-performance electromagnetic interference (EMI) shielding materials that are lightweight and flexible have excellent mechanical properties is an ideal choice for modern integrated electronic devices microwave protection. Herein, we report the preparation of core–shell polyaniline (PANI)-based nanofiber membranes EMI through seed polymerization. Electrospinning a PANI solution leads to homogeneously dispersed on surface, with abundant attachment sites aniline electrostatic adsorption hydrogen bonding interaction, allowing grow surfaces. This stable heterostructure provides more interfaces reflecting absorbing microwaves. The PANI/PVDF@PANI achieved efficiency (SE) 44.7 dB at thickness only 1.2 mm, exhibiting exceptionally high specific effectiveness (SE/t) 372.5 cm–1. Furthermore, composite membrane exhibits outstanding stability, durability, air permeability, moisture also making it suitable applications such as EM clothing.
Язык: Английский
Процитировано
20
ACS Sustainable Chemistry & Engineering, Год журнала: 2024, Номер 12(24), С. 9290 - 9300
Опубликована: Июнь 5, 2024
Biodegradable and renewable poly(lactic acid) (PLA) fibrous membranes have emerged as a promising approach to replace traditional polymeric air filters, but are still challenged by relatively low electroactivity poor electret properties. Herein, we disclose an effective electrospinning strategy substantially promote the extreme orientation of stereocomplexed PLA (OSC-PLA), conferring significant alignment refinement electrospun nanofibers (diameter ∼370 nm), well facilitate formation electroactive phases (i.e., β-phase, phase, stereocomplex crystals). Benefiting from well-tailored morphology remarkable electroactivity, OSC-PLA nanofibrous (NFMs) were characterized largely improved dielectric properties, surface potential (over 3.64 kV), PM0.3 filtration properties (93.33% at 85 L/min) compared pure PLLA membrane (2.01 kV 80.21%). It enabled assembly triboelectric nanogenerator (TENG) filters using NFMs active layer, yielding excellent charge regeneration mechanisms output current nearly 80 nA, driven respiratory vibrations L/min, thus permitting high humidity resistance, exemplified removal efficiency 95.02% RH 90%. Moreover, deep machine learning man–machine interaction integrated with OSC-PLA-based TENGs, demonstrating long-term monitoring high-precision diagnosis (accuracy 96.88%) various patterns. The proposed ecofriendly ultrafine highly appealing for sustained healthcare self-powered intelligent diagnosis.
Язык: Английский
Процитировано
20
Small, Год журнала: 2022, Номер 19(2)
Опубликована: Ноя. 20, 2022
Abstract Waterproof and breathable membranes that prevent liquid water penetration, while allowing air moisture transmission, have attracted significant attention for various applications. Electrospun nanofiber materials with adjustable pore structures, easily tunable wettability, good connectivity, shown potential constructing waterproof membranes. Herein, a systematic overview of the recent progress in design, fabrication, application nanofibrous is provided. The strategies fabricating mainly including one‐step electrospinning post‐treatment nanofibers are given as starting point discussion. different design concepts structural characteristics each type membrane comprehensively analyzed. Then, some representative applications highlighted, involving personal protection, desalination, medical dressing, electronics. Finally, challenges future perspectives associated presented.
Язык: Английский
Процитировано
50