Dioctyl phthalate (DOP) is characterized by a number of
comprehensive properties, such as high plasticizing efficiency, low
volatility and excellent UV-resisting [24]. Therefore, DOP was used
in solvent-free procedure to design and synthesize two novel
magnetic nano-sorbents. The first was based on surface encapsulation
of nano-Fe3O4 by DOP for the formation of nano-Fe3O4-DOP
sorbent. This magnetic nano-sorbent was further treated with
triethylenetetramine (TETA) as an example of nitrogen donors
containing sequestering reagent to produce nano-Fe3O4-DOPTETA
via also a solvent-free procedure. The produced magnetic
nano-sorbents were characterized by scanning electron micros-
copy (SEM), high resolution transmission electron microscopy
(HR-TEM), thermal gravimetric analysis (TGA), and Fourier
transform-infrared spectroscopy (FT-IR). The metal sorption
behaviors and characteristics of the newly designed magnetic
nano-sorbents as magnetic solid phase extractors were investi-
gated and explored by Ni(II), Cd(II) and Pb(II) under different
experimental controlling factors and conditions.
Dioctyl phthalate (DOP) is characterized by a number ofcomprehensive properties, such as high plasticizing efficiency, lowvolatility and excellent UV-resisting [24]. Therefore, DOP was usedin solvent-free procedure to design and synthesize two novelmagnetic nano-sorbents. The first was based on surface encapsulationof nano-Fe3O4 by DOP for the formation of nano-Fe3O4-DOPsorbent. This magnetic nano-sorbent was further treated withtriethylenetetramine (TETA) as an example of nitrogen donorscontaining sequestering reagent to produce nano-Fe3O4-DOPTETAvia also a solvent-free procedure. The produced magneticnano-sorbents were characterized by scanning electron micros-copy (SEM), high resolution transmission electron microscopy(HR-TEM), thermal gravimetric analysis (TGA), and Fouriertransform-infrared spectroscopy (FT-IR). The metal sorptionbehaviors and characteristics of the newly designed magneticnano-sorbents as magnetic solid phase extractors were investi-gated and explored by Ni(II), Cd(II) and Pb(II) under differentexperimental controlling factors and conditions.
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