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Hybrid electrospun nanofibrous membranes: Influence of layer arrangement and composition ratio on tensile and transport properties 2021-03-25

The purpose of this study is to study the layer structure and composition ratio of a two-component electrospun nanofiber membrane composed of hydrophobic polyurethane nanofibers and hydrophilic poly(2-acrylamido-2-methylpropanesulfonic acid). The impact of tensile and transmission properties.

Large-Scale Preparation of Polymer Nanofibers for Air Filtration by a New Multineedle Electrospinning Device 2021-03-25

The prepared TPU nanofiber gauze has been characterized. The average fiber diameter is 145.3 nm. It was found that the surface of the sample was uniform, and the water contact angle was 138.9 degrees. Good air permeability and PM removal efficiency show that the new device has practical application prospects.

Preparation of multifunctional AgNPs/PAN nanofiber membrane for air filtration by one-step process 2021-03-25

The AgNPs / PAN composite nanofiber membrane has high filtration performance for particulate matter (PM) 25, and has excellent antibacterial performance against Escherichia coli and Staphylococcus aureus. It can be used with masks, air conditioning filters (including car air conditioning filters), and Windows can use filters and other similar objects at the same time.

Hydro-Assisted Self-Regenerating Brominated N-Alkylated Thiophene Diketopyrrolopyrrole Dye Nanofibers-A Sustainable Synthesis Route for Renewable Air Filter Materials 2021-03-25

This work involves the self-organization and self-regeneration of water-induced nanofibers. Three generations of air filters have been manufactured and tested, all of which have high particulate matter (PM) adsorption tendency, high filtration efficiency (>95%) and high Young's modulus (About 5 GPa).

Polymer/MOP-derived multilayer fibrous membranes for moisture-wicking and efficient capturing both fine and ultrafine airborne particles 2021-03-25

A new type of multi-layer membrane is reported. The membrane shows excellent filtration efficiency, low air resistance and good directional moisture transmission performance for various sizes of PM. The PAN nanofiber layer is combined with rough ultrafine fibers by electrospinning. Alternately stacked to form a multilayer structured film.

STUDY ON PREPARATION AND PROPERTIES OF PVA/AgNPs COMPOSITE NANOFIBER MASK MATERIAL 2021-03-25

8 wt% PVA nanofibers have the best morphology. AgNPs with different mass fractions (0.02 wt%, 0.03 wt%, 0.04 wt%, 0.05 wt% and 0.06 wt%) were dispersed in pure water and mixed with 8 wt% PVA solution to prepare PVA by electrospinning. AgNPs composite nanofibers. PVA / AgNPs composite nanofiber mask material has good filterability, moisture permeability and air permeability, and has broad application prospects.

Facile and Novel Eco-Friendly Poly(Vinyl Alcohol) Nanofilters Using the Photocatalytic Property of Titanium Dioxide 2021-03-25

The purpose of this research is to develop an efficient nanofilter to capture fine particles using electrostatic force. Under ultraviolet light, the PVA / TiO2 nano filter can be ecologically decomposed into water and carbon dioxide through a photocatalytic reaction.

Electrospun nanofiber from various source of expanded polystyrene (EPS) waste and their characterization as potential air filter media 2021-03-25

The use of electrospinning technology to prepare nanofiber membranes from various sources of expanded polystyrene (EPS) waste and its application in air filtration media are reported. All EPS nanofiber filters have great potential as air filtration media. The EPS filter made from food packaging waste has a solution concentration of 15 wt%, and its highest efficiency and quality factor are 99.99% and 0.15 Pa-1, respectively.

Effects of surface morphology of electrospun polystyrene fiber on its air filtration performance 2021-03-25

A series of films made of polystyrene microfibers with different morphologies were prepared by the electrospinning method. The porous straight fibers have excellent filtration performance for cigarette smoke and aerosols of various sizes (for particles with sizes of 0.3μm, 0.5μm and 1μm, the filtration efficiency is 99.76%, 99.92% and 99.99%).

Multifunctional nickel nanofiber for effective air purification: PM removal and NO reduction from automobile exhaust 2021-03-25

Due to the high specific surface area and activity of Ni nanofibers themselves, Ni nanofibers also achieve impressive NO-to-N-2 and NO adsorption capabilities. Therefore, the multifunctional nickel nanofiber filter has the potential of practical application in automobile exhaust gas purification converters.

Perfluorinated superhydrophobic and oleophobic SiO2@PTFE nanofiber membrane with hierarchical nanostructures for oily fume purification 2021-03-26

A layered SiO2@PTFE nanofiber membrane is reported. It has a uniform pore structure, high gas permeability, excellent oil fume filtration efficiency and low pressure drop. In addition, our perfluorinated amphiphilic SiO2@PTFE nanofiber membrane shows good reusable and stable performance.

Application of Various Metal-Organic Frameworks (MOFs) as Catalysts for Air and Water Pollution Environmental Remediation 2021-03-26

By proposing an alternative to this problem as a catalyst, the basis and application of metal-organic frameworks are discussed. A method of preparing membranes by electrospinning while using eco-friendly polymers has been developed. MOF can be used in the environmental part of catalytic activity, and may provide important materials for catalysts in other fields in the near future.

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