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  • synthesis of zno nanoparticles using ps-b-paa reverse micelle cores for uv protective, self-cleaning and antibacterial textile applications

    جزئیات بیشتر مقاله
    • تاریخ ارائه: 1392/07/24
    • تاریخ انتشار در تی پی بین: 1392/07/24
    • تعداد بازدید: 1015
    • تعداد پرسش و پاسخ ها: 0
    • شماره تماس دبیرخانه رویداد: -
     zinc oxide (zno) nanoparticles have been synthesized in reverse micelle cores of ps(10912)-b-paa(3638) copolymer synthesized by atom transfer radical polymerization (atrp) at various precursor:copolymer ratios. the size and morphology of nano zno particles have been characterized via tem and xrd measurements. the average size of nano zno particles were determined as 25 ± 6, 21 ± 4 and 22 ± 6 nm for zn+2:copolymer ratios of 10:1, 20:1 and 40:1, respectively. the copolymer solution including nano zno particles has been coated onto textile fabrics to enhance uv-blocking, self-cleaning and anti-bacterial properties. ultraviolet protecting factor (upf) indicating uv-blocking properties of nano zno coated textile fabrics were determined as 60, 179 and 271 for zn+2:copolymer ratios of 10:1, 20:1 and 40:1, respectively. also, self-cleaning capacity was determined by investigating photocatalytic activity of methylene blue as well as antibacterial activity against facultative gram-negative escherichia coli and aerobic gram-positivestaphylococcus aureus. it has been determined that the uv protective textile fabrics have rather high photocatalytic efficiency with 78.2% and antibacterial activity against e. coli and s. aureus.

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