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JMCA-封面文章-Designing Multifunctional 3D Magnetic Foam for Effective Insoluble Oils Separation and Rapid Selective Dye Removal towards Wastewater Remediation
作者:Yan Qiu Zhang, Xiao Bin Yang, Zheng Xing Wang, Jun Long and Lu Shao
关键字:Oil-water separation
论文来源:期刊
发表时间:2017年

Highly-efficient  separating  materials,  which  can  simultaneously  remove  oil  from  water  and  adsorb  water-soluble

contaminants  like  dyes,  are  highly  demanded  for  wastewater  treatment.  Herein,  a  magnetic,  multifunctional  melamine

foam  (MF)  containing  Fe3O4 nanoparticle,  poly(sulfobetaine  methacrylate)  (PSBMA)  and  polydopamine  (PDA)  was

fabricated by a simple mussel-inspired one-pot process, which not only can separate oil/water mixturesand emulsions but

have the cationic-dye selective separation ability.The addition of poly(sulfobetaine methacrylate) (PSBMA) can allow the

immobilization for binding Fe3O4nanoparticles tightly on the surface of melamine foam skeleton so as to endorse the 3D

foam with the underwater superoleophobicity, as well as provide active sites for the adsorption of soluble dyes in water.

The special  material  synergy  makes  the  resultant  magnetic MF@Fe3O4@PDA/PSBMA foam quickly  absorb  cationic  dyes

and selective removal (in 2 minutes) of cationic dyes from dyes mixtures with high efficiency (>96%),  high stability and

flexibility even after 10 cycles driven by a magnet. Furthermore, the developed 3D magnetic foam is enough to separate

oil-water mixtures in highly acidic, alkaline, and salty environment. Our strategy may open a new avenue to obtain highperformance 3D magnetic assemblies for wastewater remediation