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Antibacterial performance of nano polypropylene filter media containing nano-TiO2 and clay particles

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Abstract

Disinfection and elimination of pathogenic microorganisms from liquid can be achieved by filtration process using antibacterial filter media. The advent of nanotechnology has facilitated the introduction of membranes consisting of nano-fiber in filtration operations. The melt electro-spun fibers due to their extremely small diameters are used in the production of this particular filtration medium. In this work, antibacterial polypropylene filter medium containing clay particles and nano-TiO2 were made using melt electro-spun technology. Antibacterial performance of polypropylene nano-filters was evaluated using E. coli bacteria. Additionally, filtration efficiency of the samples in terms fiber diameter, filter porosity, and fiber distribution using image processing technique was determined. Air permeability and dust aerosol tests were conducted to establish the suitability of the samples as a filter medium. It was concluded that as far as antibacterial property is concerned, nano-fibers filter media containing clay particles are preferential to similar media containing TiO2 nanoparticles.

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Authors and Affiliations

  1. Department of Textile Engineering, Isfahan University of Technology, Isfahan, 84156-83111, Iran

    Sara Shafiee, Mohammad Zarrebini, Elham Naghashzargar & Dariush Semnani

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  1. Sara Shafiee
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  2. Mohammad Zarrebini
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  3. Elham Naghashzargar
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  4. Dariush Semnani
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Correspondence to Dariush Semnani.

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Shafiee, S., Zarrebini, M., Naghashzargar, E. et al. Antibacterial performance of nano polypropylene filter media containing nano-TiO2 and clay particles. J Nanopart Res 17, 407 (2015). https://doi.org/10.1007/s11051-015-3195-y

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  • DOI: https://doi.org/10.1007/s11051-015-3195-y

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