Abstract
This paper reports that 4-mercaptophenylacetic acid functionalized Mn2+-doped ZnS nanoparticles (4-MPAA-ZnS-Mn2+ NPs) as fluorescent probes for the detection of copper ions in solution. The fluorescence quenching was due to the aggregation of copper ions with 4-MPAA-ZnS-Mn2+ NPs. These aggregations were confirmed by using UV lamp, UV–visible spectroscopy and dynamic light scattering (DLS). These 4-MPAA-ZnS-Mn2+ NPs were applied as fluorescent probes to detect copper ions in aqueous solution.
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