Synthesis of nano-Fe3O4-DOP sorbent
The Fe3O4-encapsulated-DOP nano-sorbent was prepared by
the addition of 20.0 mL of DOP to 10.0 g of nano-Fe3O4 sorbent.
This mixture was heated under stirring at 80–90 8C for 3 h and the
product nano-Fe3O4-DOP sorbent was filtered, washed with
methanol, collected in a pure form by a magnetic field and dried
in an oven at 70 8C until complete dryness.