Carboxyl-functionalized nanoparticles with magnetic core and mesopore carbon shell as adsorbents for the removal of heavy metal ions from aqueous solution
This communication demonstrates superparamagnetic nanosized particles with a magnetic
core and a porous carbon shell (thickness of 11 nm), which can remove 97% of Pb2+ ions
from an acidic aqueous solution at a Pb2+ ion concentration of 100 mg L− 1. It is suggested
that a weak electrostatic force of attraction between the heavy metal ions and the
nanoparticles and the heavy metal ions adsorption on the mesopore carbon shell contribute
most to the superior removal property.
core and a porous carbon shell (thickness of 11 nm), which can remove 97% of Pb2+ ions
from an acidic aqueous solution at a Pb2+ ion concentration of 100 mg L− 1. It is suggested
that a weak electrostatic force of attraction between the heavy metal ions and the
nanoparticles and the heavy metal ions adsorption on the mesopore carbon shell contribute
most to the superior removal property.
This communication demonstrates superparamagnetic nanosized particles with a magnetic core and a porous carbon shell (thickness of 11 nm), which can remove 97% of Pb2+ ions from an acidic aqueous solution at a Pb2+ ion concentration of 100 mg L−1. It is suggested that a weak electrostatic force of attraction between the heavy metal ions and the nanoparticles and the heavy metal ions adsorption on the mesopore carbon shell contribute most to the superior removal property.
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