Many oil adsorption materials are
composed of nonrenewable raw materials, and their disposal can increase resource
consumption and cause new environmental pollution. In this paper,
the carbonized Eichhornia crassipes (CEC) were immobilized with Fe3O4 magnetic
nanoparticles and modified with 1H, 1H, 2H, 2H-perfluorooctyltriethoxysilane
(PFOS) to prepare an oil adsorption material, referred to here as
CEC/Fe3O4/PFOS. The magnetic and mechanical
strength of the CEC was enhanced by adding Fe3O4 magnetic particles, which enable it efficient to dispose the oil/water
solution. CEC/Fe3O4/PFOS shows high porosity
(83.53%), low skeletal density (0.487 g/cm3), excellent
magnetism, ultrahigh oil absorption capacity (49.94–140.90
g/g), hydrophobic performances with a water contact angle of 150.1
± 2.3°, and a sliding angle of 10.5°. It is worth noting
that the material can be recycled, and the absorbed oil is obtained
by distillation. Therefore, this work may provide a candidate for
solving the problem of oil pollution using E. crassipes.
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