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Removal of Arsenic Using a Cationic Polymer Gel Impregnated with Iron Hydroxide
Published on: June 28, 2019
Arsenic removal from contaminated water using three-dimensional graphene-carbon nanotube-iron oxide nanostructures
Sridhar Vadahanambi1, Sang-Heon Lee, Won-Jong Kim
1Graphene Research Center, KAIST Institute for the NanoCentury, School of Mechanical, Aerospace and Systems Engineering, Division of Ocean Systems Engineering, Korea Advanced Institute of Science and Technology , 335 Gwahak-ro, Yuseong-gu, Daejeon 305-701, Republic of Korea.
Abstract:
We report a highly versatile and one-pot microwave route to the mass production of three-dimensional graphene-carbon nanotube-iron oxide nanostructures for the efficient removal of arsenic from contaminated water. The unique three-dimensional nanostructure shows that carbon nanotubes are vertically standing on graphene sheets and iron oxide nanoparticles are decorated on both the graphene and the carbon nanotubes. The material with iron oxide nanoparticles shows excellent absorption for arsenic removal from contaminated water, due to its high surface-to-volume ratio and open pore network of the graphene-carbon nanotube-iron oxide three-dimensional nanostructures.
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