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Multifunctional Electrospun Nanomembranes in Wet Filtration: A Comprehensive Review |
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PP: 91-108 |
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Author(s) |
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Waseem Khan,
Fesmi Majeed,
Altaf Khan,
Ramazan Asmatulu,
Saleimah Alyammahi,
Raheema Aslam,
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Abstract |
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| Nanomembranes have great potential to play a vital role in filtration and separation technology. Electrospun nanofibers possess unique attributes like exceptional filtration effectiveness, minute pore dimensions, excellent permeability, and affordability. Hence, they are the favored choice for numerous applications involving nanomembranes and filtration. Polymeric nanofibrous membranes are currently used commercially for air filtration; however, their uses in water filtration have not yet been fully explored. Electrospun nanofibrous membranes (ENMs) are the common name for electrospun fibrous membranes, which are flexible, have a large surface area, and have a porous structure that allows for significantly higher sites for separation processes. By providing a method that is lighter, more affordable, and less energy-intensive than that of traditional membranes, ENMs represent a breakthrough in the treatment of water and wastewater. Compared to traditional membranes, ENMs have high porosity, typically in the region of 80%, as opposed to 5-35%, for conventional membranes. This review highlights the application of electrospun nanofiber membrane (ENM) in wastewater treatment and surface modification of nanomembrane to address the fouling issue of membranes. In addition to the removal of suspended particles, heavy metals, and particulate matter, nanofibrous membranes can be used for the removal of pathogens and chemicals. The separation of oil from water is an exigent issue due to the higher amount of oily industrial wastewater and polluted water of the ocean. This review consists of the importance of nanotechnology in wet filtration and the application of nanomaterials (electrospun nanofibers) in wet filtration applications. |
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