Fe3O4@SiO2 functionalized PEG-PPG-PEG triblock copolymer-grafted graphene oxide as novel magnetic nanodemulsifier for water-in-crude oil emulsion separation

Fluorinated polyether-coated Fe3O4-functionalized oxidized carbon nanotubes as a recyclable demulsifier for crude oil emulsion treatment

“…For (30 : 70 vol%) W/O emulsion, the demulsification rate of Fe 3 O 4 @β-CD@IL could reach 92%, and the demulsifier could be reused for five times, which proved the potential of the magnetic compounds under different ionic liquids. TeAl-Janabi et al 21 grafted graphene oxide nanosheets with polyethylene glycol- block -polypropylene glycol- block -polyethylene glycol triblock copolymer functionalized Fe 3 O 4 @SiO 2 to synthesize an amphiphilic magnetic nanodemulsifier (MND). The MND could quickly demulsify W/O emulsions and could be reused for at least four cycles.…”