A fluorescent sensor for selective, sensitive, and recyclable detection of mercury(II) in aqueous solution based on a zinc(II) coordination polymer

JLNU-3 has been synthesized by hydrothermal reaction and characterized in detail. Especially, JLNU-3 has excellent stability in aqueous solution and also exhibits strong fluorescence emission. The fluorescence emission could be effectively quenched by trace amounts of Hg2+ in aqueous solution. JLNU-3 can be used as a fluorescent probe for selective, sensitive and recyclable sensing of heavy-metal cation Hg2+ in aqueous solution.277