A Zn-based coordination compound for fluorescence detection of Fe3+, Cu2+, Ni2+ and CrO42− ions
A Zn-based coordination compound for fluorescence detection of Fe3+, Cu2+, Ni2+ and CrO42− ions
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DOI：
10.1016/j.poly.2020.114868
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发表时间：
2021
期刊：
影响因子：
2.6
通讯作者：
Li-Juan Han;Ya-jie Kong;Ya-Yun Xu;Meng-Meng Huang-Meng
中科院分区：
文献类型：
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作者：
Li-Juan Han;Ya-jie Kong;Ya-Yun Xu;Meng-Meng Huang-Meng
重金属离子污染对人类健康和环境构成严重威胁，因此开发有效的检测方法仍然是一项重要的任务。虽然金属离子的荧光检测已有报道，但多功能荧光探针的研究较少。本文合成了一种发光配合物[Zn（OOCC 6 F5）（H2O）（C12 H8 N2）2]（OOCC 6 F5）（1），并通过荧光猝灭法研究了该配合物对Fe 3+、Cu 2+、Ni 2+和CrO 42 −离子的荧光响应。荧光光谱研究表明，化合物1能快速检测Fe 3+、Cu 2+、Ni 2+和CrO 42 −离子，具有良好的选择性和灵敏度，其中猝灭效率Ksv（Fe 3+：4.99 × 105 M −1; Cu 2+：1.50 × 105 M −1; Ni 2+：2.68 × 104 M −1; CrO 42 −：2.03 × 105 M −1）和检测限（Fe 3+：0.240 μM; Cu 2+：0.287 μM; Ni 2+：0.491 μM; CrO 42 −：0.388 μM）被认为是用于检测Fe 3+、Cu 2+、Ni 2+和CrO 42 −离子的配位化合物传感器的优异值。我们期望利用化合物1建立一种简单、低成本的检测方法，用于监测人体健康和帮助解决环境污染问题。
Heavy metal ion pollution poses severe risks for human health and the environment, so the development of an effective method for detecting heavy-metal ions remains a serious task. Although fluorescence detection of metal ions has been reported, there are few studies on multifunctional fluorescent probes. In this paper, we synthesized a luminescent coordination compound, [Zn(OOCC6F5)(H2O)(C12H8N2)2](OOCC6F5) (1), and the fluorescence sensing results exhibited that compound1is a multifunctional luminescent probe for detecting Fe3+, Cu2+, Ni2+and CrO42−ions by fluorescence quenching. Luminescence studies demonstrated that compound1can rapidly detect Fe3+, Cu2+, Ni2+and CrO42−ions with excellent selectivity and sensitivity, where the quenching efficienciesKsv(Fe3+: 4.99 × 105M−1; Cu2+: 1.50 × 105M−1; Ni2+: 2.68 × 104M−1; CrO42−: 2.03 × 105M−1) and detection limits (Fe3+: 0.240 μM; Cu2+: 0.287 μM; Ni2+: 0.491 μM; CrO42−: 0.388 μM) are regarded as being excellent values for a coordination compound sensor detecting Fe3+, Cu2+, Ni2+and CrO42−ions. We anticipate that a simple and low-cost detection method utilizing compound1could be employed to monitor human health and help solve environmental pollution.