CJCU

Chem. J. Chinese Universities ›› 2013, Vol. 34 ›› Issue (3): 739.doi: 10.7503/cjcu20120526

• Polymer Chemistry • Previous Articles     Next Articles

Preparation and Characterization of a Novel Anti-biofouling Ultrafiltration Membrane with Cu2+ Immobilization

CHEN Pei-Pei1, XU Jia1, JIANG Yu-Ye1, FENG Chen-Chen1, GAO Cong-Jie1,2   

  1. 1. College of Chemistry and Chemical Engineering, Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao 266100, China;
    2. Hangzhou Water Treatment Technology Development Center, Hangzhou 310000, China
  • Received:2012-05-30 Online:2013-03-10 Published:2013-02-18

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Abstract:

Polyethylenimine(PEI) polyelectrolyte layer was firstly formed on a polyacrylonitrile(PAN) substrate. Copper(Ⅱ) ions were immobilized onto the PEI layer via two different approaches for the anti-biofou-ling membrane preparation, including static immersion and dynamic electro-deposition. Finally, a novel ultrafiltration membrane with Cu2+ immobilization was obtained. The results indicated that both the PEI layer and Cu2+ on the resulting membrane had relatively high stability. The rejection rate to humic acid of this membrane up to 99.0%, and this membrane also had an excellent bacteriostatic property, the bacteriostasis rate was 85.7%. In addition, compared to the static immersion method, dynamic electro-deposition method was a much more effective method for immobilizing Cu2+, which could reduce the Cu2+ immobilization time and significantly improve the immobilization efficiency.

Key words: Ultrafiltration membrane, Polyethylenimine, Electro-deposition, Copper(Ⅱ) immobilization, Bacteriostasis

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