A nanofibrous membrane fluorescent sensor for fluoride ions prepared by electrospinning and host-guest interaction

Abstract

A novel inclusion complexes nanofibrous membrane fluorescent sensor was prepared for recognizing Fvia electrospinning and host-guest interaction. The host α-cyclodextrin on the surface of the electrospun nanofiber membrane is assembled into the guest azobenzene molecule which modified with Ffluorescent probe，and the formation of the inclusion complex is fixed on the surface of the nanofibrous membrane without external force，to prepare a novel surface controllable composite nanofiber membrane for Fdetection. The inclusion complexes nanofibrous membrane exhibited favourable sensitivity and selectivity for F -. The introduction of Fwould result in notable fluorescent decreasing of the membrane, but the other most common anions would not disturb the detection of F -. Moreover, this nanofibrous membrane was not only a fluorescent sensor for detecting F -, but also a good adsorbent for Fin solution.

Advances in electrospun nanofibrous membrane sensors for ion detection

“…31 The detection limit and quantication limit of this sensor were 2.15 × 10 −5 and 7.17 Self-assembly. Zhang et al 129 used a b-cyclodextrin (b-CD)-modied copolymer of acrylonitrile and acrylic acid (PAN-co-AA) electrospun ber membrane (PAN-co-AA/b-CD) as the host, and the conjugated A nitrobenzene-modied naphthalimide derivative (intermediate 3) served as a guest. The host-guest self-assembly method was used to combine them to form a ber membrane sensor for F-high selective detection.…”