Acrylonitrile butadiene styrene (ABS) waste has been successfully recycled into nanofiber membranes by an electrospinning method for air filter applications.

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The PAN/TiO 2 /Ag nanofibers membrane for air filtration media was successfully synthesized with electrospinning method. The morphology, size, and element percentage of the nanofiber were characterized by a scanning electron microscopy–energy dispersive spectroscopy, while X-ray fluorescence and FTIR were used to observe the chemical composition. The water contact angle and UV–vis absorption were measured for physical properties. Performance for air filtration media was measured by pressure drop, efficiency, and quality factor test. TiO 2 and Ag have been successfully deposited in nonuniform 570 nm PAN/TiO 2 /Ag nanofibers. The nanofiber membrane had hydrophilic surface after TiO 2 and Ag addition with a water contact angle of 34.58°. UV–vis data showed the shifting of absorbance and band gap energy of nanofibers membrane to visible light from 3.8 to 1.8 eV. The 60 min spun PAN/TiO 2 /Ag nanofibers membrane had a 96.9% efficiency of PM 2.5 , comparable to results reported in previous studies. These properties were suitable to be applied on air filtration media with photocatalytic activity for self-cleaning performance.

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Electrospun nanofiber membrane from acrylonitrile butadiene styrene (ABS) waste for water treatment application.

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