Hybrid carbon nanotubes/graphene/nickel fluffy spheres for fast magnetic separation and efficient removal of organic solvents from water

Publication date: 1 November 2019Source: Materials Letters, Volume 254Author(s): Tao Tao, Guangyao Li, Yanli He, Pengzheng DuanAbstractCarbon nanotubes/graphene/nickel (CNT-G-Ni) fluffy spheres were synthesized using renewable carbon sources. Carbon-encapsulated nickel nanoparticles (CENNs) were prepared by hydrothermal carbonization (HTC) of potato starch and nickel nitrate, and then followed by catalytic graphitization at 900 °C. The prepared GENNs were cracked at 700 °C in biogas, during which graphene shells over GENNs were peeled off and formed graphene nanoplatelets, and simultaneously multiwall carbon nanotubes (MWCNTs) were formed over nickel particles and in-situ integrated into graphene nanoplatelets to obtain CNT-G-Ni fluffy spheres. The prepared 3D nanocomposite was investigated for the removal of organic solvent from water and its adsorption capacity above 110 g/g.
Source: Materials Letters - Category: Materials Science Source Type: research