Preparation and Characterization of Dual Ions Imprinting Electro-spun Cross-linked Chitosan Nanofibers Via Orthogonal Experimental Design

The dual ions imprintingelectro-spun cross-linked chitosan nanofibers were successfully prepared using Pb(II) and Cd(II) as template ions and glutaraldehyde (GA) as cross-linker. Herein, a novel and easy way to prepare samples were used, which combined electrospinning, crosslinking andionimprinting techniques. Scanning Electron Microscopy (SEM), Fourier Transform Infrared Spectroscopy (FTIR) and Thermal Gravimetric analysis (TGA) were applied to characterize the structure of the resulting chitosan nanofibers. In addition, the orthogonal experimental design was adopted to prepare the dual ions imprinting samples with the finest fiber diameter and good morphology. The characterization results confirmed the success of crosslinking.