(519d) Electrospun Polyacrylonitrile / Iron(III) Nitrate Nanocomposite Fibers for the Removal of Chromium in Water
AIChE Annual Meeting
2015
2015 AIChE Annual Meeting Proceedings
Materials Engineering and Sciences Division
Composites for Environmental Applications
Wednesday, November 11, 2015 - 1:33pm to 1:54pm
Uniform electrospun PAN/Fe(NO3)3 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. Due to the conductive nature of iron salt in polymer solution, even a relative lower voltage of 6 kV could generate a stable fluid jet and yield the nanofibers. The thermal properties of the composite fibers were investigated by thermal gravimetric analysis (TGA) and differential scanning calorimetry (DSC). Rheological studies were also conducted. The composite nanofibers were further carbonized to carbon nanofibers. Applications of the nanofibers in environment remediation have shown promise.