| 초록 |
Because water contamination by barium ion is still common, the ability to detect Ba2+ in aqueous media is important. In the present study, a colorimetric sensing platform for detecting Ba2+ in an aqueous medium was developed. Upon the addition of PSS to a solution of the Ag nanoprisms, the sharp tips of the Ag nanoprisms were immediately etched and the nanoprisms spontaneously transformed into spheroidal nanostructures, giving rise to dramatic changes in their LSPR properties. The chemical etching reaction of Ag nanoprisms exposed to PSS was retarded in the presence of Ba2+, which enabled the design of a new chemical sensing platform for the sensitive and selective detection of Ba2+ in aqueous media. |
