Journal of Inorganic Materials

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Preparation of Magnetic ZSM-5/Ni Hollow Fibers Using Poly (vinylidene fluoride) Hollow Fiber Microfiltration Membranes as Templates

JIANG Jin-Long1,2, TAO Hui-Qing1, ZENG Chang-Feng3, ZHANG Li-Xiong1, XU Nan-Ping1   

  1. (1. College of Chemistry and Chemical Engineering, State Key Laboratory of Materials-oriental Chemical Engineering, Nanjing University of Technology, Nanjing 210009, China; 2. Department of Chemical Engineering, Huaiyin College of Technology, Huaian 223001, China; 3. School of Mechanical and Power Engineering, Nanjing University of Technology, Nanjing 210009, China)
  • Received:2007-05-18 Revised:2007-07-01 Online:2008-05-20 Published:2008-05-20
  • Contact: ZENG Chang-Feng E-mail:lixiongzhang@yahoo.com

Abstract: Magnetic ZSM-5/Ni hollow fibers were synthesized by first growing ZSM-5 layers on Ni/PVDF hollow fibers, which were prepared by electroless plating on poly(vinylidene fluoride) (PVDF) hollow fiber microfiltration membranes, followed by calcination in air at 550℃ for 4h. The samples were characterized by SEM, EDX, XRD, BET, vibrating sample magnetometer (VSM) and TG. The effects of hydrothermal synthesis cycles and temperature on the coating of ZSM-5 crystals on the surfaces of the Ni/PVDF hollow fibers were examined. The results indicate that the thickness of the nickel layer can be regulated by controlling the plating time. A continuous ZSM-5 film can be obtained by hydrothermal treatment twice at 150℃ for 24h. The thickness of the zeolite film can be regulated by controlling the reaction temperature. The saturation magnetization values of the magnetic ZSM-5/Ni hollow fibers prepared after hydrothermal treatment twice at 150℃ for 24h are 9.3A·m2/kg and 20.3A·m2/kg before and after calcination, respectively. The BET specific surface area of the calcined sample is 108m2/g.

Key words: magnetic zeolite, hollow fiber, PVDF fiber, electroless plating

CLC Number: 

  • TB43