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An effective removal of methylene blue dye using polyacrylonitrile yarn waste/graphene oxide nanofibrous composite
Swaminathan, S.; Muthumanickkam, A. & Imayathamizhan, N. M.
Abstract
An electrospun nanofibrous composite mat
was prepared from polyacrylonitrile yarn waste and
graphene oxide. The physical and chemical properties of
the nanofibrous composites were characterized using
attenuated total reflections Fourier transform infrared,
scanning electron microscopy, X-ray diffractometer, and
TGA studies. The mean fiber diameters of the pristine
polyacrylonitrile yarn waste nanofiber, polyacrylonitrile
yarn waste/0.5 wt% graphene oxide, polyacrylonitrile
yarn waste/1.0 wt% graphene oxide, and polyacrylonitrile
yarn waste/1.5 wt% graphene oxide nanofibrous composites
were in the range of 41–50, 31–40, 31–40, and
31–40 nm, respectively. The mean pore sizes of the
polyacrylonitrile yarn waste nanofiber, polyacrylonitrile
yarn waste/0.5 wt% graphene oxide, polyacrylonitrile
yarn waste/1.0 wt% graphene oxide, and polyacrylonitrile
yarn waste/1.5 wt% graphene oxide nanofibrous composites
were 0.5541, 0.4533, 0.4229, and 0.4168 lm,
respectively. The maximum dye removal efficiency was
attained in the polyacrylonitrile yarn waste/1.5 wt%
graphene oxide composite at basic pH.
Keywords
Polyacrylonitrile yarn waste; Graphene oxide; Scanning electron microscopy; Methylene blue; Capillary flow meter
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