Colorimetric and fluorescent nanofibrous film as a chemosensor for Hg2+ in aqueous solution prepared by electrospinning and host-guest interaction

A fluorescent sensing film for Hg2+ ions was fabricated by host-guest interaction and electrospinning. When the nanofibrous film was put into a solution of Hg2+ ions, it gave rise to orange fluorescence, causing a clear color change from white to pink-red.