FOOD SCIENCE ›› 2008, Vol. 29 ›› Issue (5): 159-161.

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Preparation of Polysulfone-Fe3O4 Magnetic Composite Ultrafiltration Membrane and Application

 PAN  Jian, HE  Ya-Hui, JIN  Ming-Hui, ZHAO  Jin-Long   

  1. Engineering Research Center of Bio-process,Ministry of Education,Hefei University of Technology
  • Online:2008-05-15 Published:2011-08-26

Abstract: Polysulfone(PSF)-Fe3O4 composite ultrafiltration membrane was made by phase-inversion process.SEM,AFM showed that most particles distributing uniformly in the membrane and the mean surface roughness(RMS) was only 46.059 nm in the range of the scan areas 30μm×30μm.The puerarin and troxerutin ultrafiltration with the PSF-Fe3O4 composite membrane in different magnetic intensities were performed respectively.The change current of permeation with the intensity were different.In the puerarin ultrafiltration test,the permeation got to maximum in 0.2 T while in the troxerutin test,the permeation got to maximum in 0.4 T.The difference proves the novel idea that different objects can be separated with only a composite membrane in turn by controlling the magnetic field doable.

Key words: nano-sized Fe3O4, polysulfone, magnetic composite ultrafiltration membrane, magnetic filed, permeation ratio