A facile method to fabricate the superhydrophobic magnetic sponge for oil-water separation

•A one-step facile method is proposed to fabricate superhydrophobic magnetic sponge.•The sponge can be driven by a magnet to effectively separate oil from water.•The sponge has high oil-absorption capacity and excellent recyclability. The superhydrophobic magnetic sponge with the ability for highly-...

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Bibliographic Details
Published inMaterials letters Vol. 195; pp. 66 - 70
Main Authors Liu, Lei, Lei, Jinglei, Li, Lingjie, Zhang, Rui, Mi, Nanyang, Chen, Herong, Huang, Dong, Li, Nianbing
Format Journal Article
LanguageEnglish
Published Amsterdam Elsevier B.V 15.05.2017
Elsevier BV
Subjects
Functional
Hydrophobic surfaces
Iron oxides
Materials science
Nanoparticles
Oil-water separation
Porous materials
Recyclability
Separation
Superhydrophobicity
Surfaces
Functional
Surfaces
Oil-water separation
Superhydrophobicity
Porous materials
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Summary:•A one-step facile method is proposed to fabricate superhydrophobic magnetic sponge.•The sponge can be driven by a magnet to effectively separate oil from water.•The sponge has high oil-absorption capacity and excellent recyclability. The superhydrophobic magnetic sponge with the ability for highly-effective oil-water separation is facilely fabricated by a one-step method through dipping of commercial sponge in a solution containing Fe3O4 magnetic nanoparticles and low-surface-energy compound Actyflon-G502 under ultrasonication. The as-prepared sponge can be driven by a magnet to the polluted water zone to selectively absorb oils from water. The oil absorption capacities of the as-prepared sponge for different types of oil and organic solvents are high up to 25–87 times of its own weight. Moreover, the as-prepared sponge shows excellent recyclability, which can be forecasted as an ideal candidate for oil-water separation.
ISSN:0167-577X
1873-4979
DOI:10.1016/j.matlet.2017.02.100