A Very Strong Blue Fluorescent Probe for Hexavalent Chromium Detection with Highly Selective and Sensitive Performance
作者： Yanfang Tan , Yuwei Lan , Jinling Liu , Chunfeng Liang
DOI: 10.1007/S11664-018-6770-Z
关键词:
摘要: A wide variety of methods including chromatography, chemiluminescence and spectrophotometry have been reported to detect hexavalent chromium. Recently, carbon quantum dots (CQDs) gained increasing attention as effective probes for inorganic ions, organic molecules, biomolecules. However, there are still some bottlenecks, such raw materials being too expensive obtain, the a low yield (QY), preparation process is not environmentally friendly. Here, we prepare very strong fluorescent probe through simple, rapid, green one-pot hydrothermal method with blue emission (QY, 61.1%). The obtained CQDs exhibit good water solubility, toxicity, photostability. Moreover, show selectivity sensitivity chromium (Cr(VI)) under neutral conditions, linear range 1–100 μM detection limit 0.19 μM. Meanwhile, this has successfully applied highly selective analysis Cr(VI) in natural samples, which demonstrated its potential environmental field applications.
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