JOURNAL OF TEXTILE RESEARCH ›› 2017, Vol. 38 ›› Issue (02): 26-33.doi: 10.13475/j.fzxb.20161100608

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Preparation and antibacterial property of high-efficiency low-resistance polyacrylonitrile / graphene nanofiber membrane for gas filtration

  

  • Received:2016-11-01 Revised:2016-11-13 Online:2017-02-15 Published:2017-02-27

Abstract:

In view of polyacrylonitrile (PAV) as filter material with the influence on air filtration performance factors, the electrospun graphene/PAN composite membranes  different contents of graphene were prepared. Filtration efficiency and antibacterial property of menbranes were tested, and the injluences of air flow rate and pore size distribution membranes on filtration efficiency were studied. Results showed that when the content of graphite oxide (GO) is 0.3%, the average diameter of nanofibers was 103 nm and the filtration efficiency of the composite membrane reaches to maximum; the filtration efficiency of the composite membrane decreased with the increase of flow rate, and pore size between 1.3~1.7 μm was best for improvement of the membrane filtration efficiency; and when the contents of GO and reductive graphite oxide (rGO) were 0.3%, the filtration efficiency of the GO/PAN composite membrane was better than that of the rGO/PAN composite membrane, and though the antibacterial property was the opposite,namely the antibacterial experiment results were PAN/GO and PAN/rGO nanocomposite bacteriostatic rate of E. coli were 32.4% and 40.5%, respectively, the inhibition rate of Staphylococcus aureus were 45.8% and 56.7% respectively.

Key words: high efficiency with low resistance, polyacrylonitrele, graphene, filtration property, antibacterial property

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