Preparation of Bead-on-String Nanofibers and its Application for the Removal of Bisphenol A

Abstract

Bead-on-string nanofibers were prepared by electrospinning, in this work, . The effect of processing parameters and property of solutions on the morphology of bead-on-string nanofibers were systematically investigated. The results revealed that the morphology of beads on nanofibers transformed from spherical into spindle-like with increased concentration of solution, applied voltage and needle-collector distance. Average width of beads became smaller as increasing all the values of processing parameters. Meanwhile, the application for the removal of bisphenol A (BPA) from aqueous solution was investigated, and results showed that the bead-on-string nanofibers could effectively remove BPA from aqueous solution. The kinetic data were analyzed by the pseudo-first-order, pseudo-second-order kinetic models. The reusability of the composite nanofiber was also determined after five adsorption–desorption cycles.

Orientated and diameter-controlled fibrous scaffolds fabricated using the centrifugal electrospinning technique for stimulating the behaviours of fibroblast cells

“…Researchers used lower operating voltage in fabricating fibre but resulted in a wider range of fibre and non-uniformity fibre [16,26]. Lower operating voltage could lower the electrostatic repulsion forces between the needle tip and the collector which in turn provides weaker drawing stress in the polymer jet and leads in the formation of wider ranges fibre, beaded fibre and non-uniformity fibre [27,28]. Hence, a high operating voltage is required to remove the instability of whipping and strengthening the electrostatic force in the CES process.…”