Arsenic removal from contaminated water using three-dimensional graphene-carbon nanotube-iron oxide nanostructures.
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.
Graphene 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.
Sridhar
S
Vadahanambi
Sang-Heon
SH
Lee
Won-Jong
WJ
Kim
Il-Kwon
IK
Oh
D000327:Adsorption; D001151:Arsenic / Q000737:chemistry*; D005290:Ferric Compounds / Q000737:chemistry*; D006108:Graphite / Q000737:chemistry*; D008855:Microscopy, Electron, Scanning; D046529:Microscopy, Electron, Transmission; D049329:Nanostructures / Q000737:chemistry / Q000648:ultrastructure; D037742:Nanotubes, Carbon / Q000737:chemistry*; D014874:Water Pollutants, Chemical / Q000737:chemistry*; D018508:Water Purification / Q000379:methods
D005290:Ferric Compounds; D037742:Nanotubes, Carbon; D014874:Water Pollutants, Chemical; C000499:ferric oxide; D006108:Graphite; D001151:Arsenic