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