کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
633729 1456047 2014 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Functionalized electrospun nanofibrous microfiltration membranes for removal of bacteria and viruses
ترجمه فارسی عنوان
غشاهای میکروفلترانس نانوفیبری الکتروفوباسیون برای حذف باکتری ها و ویروس ها
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی تصفیه و جداسازی
چکیده انگلیسی


• Novel MF membranes have been fabricated from functionalized electrospun nanofibers.
• The membrane exhibits higher flux and lower pressure drop than that of a commercial one.
• The membrane shows retention of E. coli (99.9999%) and bacteriophage MS2 (99.99%).

A novel nanofibrous microfiltration membrane system, fabricated from surface functionalized polyacrylonitrile (PAN) electrospun nanofibers, was demonstrated for the effective removal of bacteria and viruses from contaminated water. For membrane modification, dual-vinyl and tri-vinyl monomers were polymerized on the surface of the PAN electrospun nanofibers, which also improved the membrane mechanical properties due to the formation of a cross-linked. Meanwhile, the dual-vinyl monomer with an imidazolium cation resulted in positively charged electrospun PAN nanofibers, allowing the membrane to create not only 2–3 times higher permeation flux or lower pressure drop, but also 99.9999% retention of bacteria (e.g., Escherichia coli) and 99.99% retention of bacteriophage (e.g., MS2) during microfiltration when compared with commercial microfiltration membranes (e.g., 90% retention of MS2).

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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Membrane Science - Volume 452, 15 February 2014, Pages 446–452
نویسندگان
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