In this work, o-phenylenediamine-m-phenylenediamine copolymer dots (omCPs) with designed surface groups are synthesized and characterized. Here, we explored a simple, rapid semiquantitative detection system for Cu2+ with a wide detection range (5–7 orders of magnitude) based on the fluorescence in the solid state of omCPs and their tunable detection limits. The construction and application of the rapid semiquantitative detection system for Cu2+ are developed and demonstrated for the practical applications. What’s more, the detection limit can be modulated easily by adjusting the surface groups of these dots through the monomer dose control before the co-polymerization. Moreover, we demonstrated that this new technological approach is suitable for the semiquantitative determination of other ions pollutants (i.e., Na+, K+, Cu2+, Pb2+, Hg2+, and NO2−) in environmental water.
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Shizhen Zhao and Siwei Yang contributed equally to this work. We are grateful to the open project fund of Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province (CSPC2016-1), National Science and Technology Major Project (2011ZX02707), and the Chinese Academy of Sciences (KGZDEW-303) for generous support of this work.
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Zhao, S., Yang, S., Song, X. et al. Portable solid rapid quantitative detection for Cu2+ ions: Tuning the detection range limits of fluorescent conducting polymer dots. Journal of Materials Research 32, 1582–1593 (2017). https://doi.org/10.1557/jmr.2017.90