A Turn-On fluorescent chemosensor with the aggregation-induced emission characteristic for high-sensitive detection of Ce ion

A single selective and high sensitive sensor for the rapid turn-on detection of Ce ions was successfully prepared. The probe is practically non-luminescent in the solution state but becomes highly emissive as aggregates in poor solvents, demonstrating a phenomenon of aggregation-induced emission (AM). It shows a real-time and time-stable detection of Ce3+ with a detection limit of 2.27 mu mol/L. The interaction mechanism was deducted by DLS analysis, XRD analysis, NMR and FT-IR measurements. Moreover, Ce4+ ions could also be distinguished and detected via the addition of 1,2-propanediol. (C) 2018 Elsevier B.V. All rights reserved.