Detection of Lead Ion Based on Aggregation-induced Emission of Copper Nanoclusters

The fluorescence intensity of glutathione-protected non-noble metal copper nanoclusters (Cu NCs@GSH) was remarkably improved in the presence of Pb2+ and showed bright orange fluorescence. A fluorescence method for the determination of Pb2+ was established based on aggregation-induced emission. The method can be carried out visual qualitative detection of Pb2+ under UV lamp.