469836 Electrospun Nanocarbon Fibers for the Chromium Removal in Water

Tuesday, November 15, 2016: 12:48 PM
Golden Gate 5 (Hilton San Francisco Union Square)
Yang Lu1, Guoqiang Yu1, John Zhanhu Guo2, Suying Wei3 and Evan K. Wujcik4, (1)Materials Engineering And Nanosensor (MEAN) Laboratory, Dan F. Smith Department of Chemical Engineering, Lamar University, Beaumont, TX, (2)Integrated Composites Laboratory (ICL), Department of Chemical & Biomolecular Engineering, University of Tennessee Knoxville, Knoxville, TN, (3)Chemistry and Biochemistry, Lamar University, Beaumont, TX, (4)Department of Chemical and Biological Engineering, The University of Alabama, Tuscaloosa, AL

Uniform electrospun polyacrylonitrile / iron (III) nitrate nanofibers with small diameters were successfully prepared by systematically optimizing the electrospinning parameters including polymer concentration, salt loading, applied voltage, tip ­to­ collector distance, and flow rate. These parameters are shown to affect the fiber morphology and the addition of iron (III) nitrate salt was found to be able to reduce the fiber size and required electrospinning voltage. The improved thermal properties of the composite fibers were investigated and shown by thermal gravimetric analysis (TGA) and differential scanning calorimetry (DSC). The composite nanofibers were further carbonized to carbon nanofibers. Applications of the nanofibers for chromium removal have shown promise.

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See more of this Session: Composites for Environmental Applications
See more of this Group/Topical: Materials Engineering and Sciences Division