کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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636125 | 1456114 | 2010 | 9 صفحه PDF | دانلود رایگان |
Poly(methyl methacrylate) (PMMA) nanofibers containing the inclusion complex forming beta-cyclodextrin (β-CD) were successfully produced by means of electrospinning in order to develop functional nanofibrous webs for organic vapor waste treatment. Electrospinning of uniform PMMA nanofibers containing different loadings of β-CD (10%, 25% and 50% (w/w)) was achieved. The surface sensitive spectroscopic techniques; X-ray photoelectron spectroscopy (XPS) and time-of-flight secondary ion mass spectrometry (ToF-SIMS) showed that some of the β-CD molecules are present on the surface of the PMMA nanofibers, which is essential for the trapping of organic vapors by inclusion complexation. Direct pyrolysis mass spectrometry (DP-MS) studies showed that PMMA nanowebs containing β-CD can entrap organic vapors such as aniline, styrene and toluene from the surroundings due to inclusion complexation with β-CD that is present on the fiber surface. Our study showed that electrospun nanowebs functionalized with cyclodextrins may have the potential to be used as molecular filters and/or nanofilters for the treatment of organic vapor waste and air filtration purposes.
Research highlights▶ Functional electrospun PMMA nanofibers containing cyclodextrin (β-CD) was produced. ▶ β-CD molecules are present on the surface of the PMMA nanofibers. ▶ PMMA/β-CD nanowebs can entrap organic vapors by inclusion complexation. ▶ CD functionalized nanowebs can entrap organic waste vapors from the environment.
Journal: Journal of Membrane Science - Volume 365, Issues 1–2, 1 December 2010, Pages 409–417