Visual and sensitive fluorescent sensing for ultratrace mercury ions by perovskite quantum dots

被引：70
作者：
Lu, Li-Qiang [1 ]
Tan, Tian [1 ]
Tian, Xi-Ke [1 ]
Li, Yong [1 ]
Deng, Pan [1 ]
机构：
[1] China Univ Geosci, Fac Mat Sci & Chem, Wuhan 430074, Hubei, Peoples R China
来源：
ANALYTICA CHIMICA ACTA | 2017年 / 986卷
基金：
中国国家自然科学基金;
关键词：
Perovskite QDs; Hg2+ detection; Surface ion-exchange; Visual sensing; ORGANOMETAL HALIDE PEROVSKITE; SOLAR-CELLS; SELECTIVE DETECTION; GOLD NANOPARTICLES; LUMINESCENT PROBES; AQUEOUS-SOLUTION; FACILE SYNTHESIS; SENSOR; HG2+; SPECTROMETRY;
D O I：
10.1016/j.aca.2017.07.014
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
Mercury ions sensing is an important issue for human health and environmental safety. A novel fluorescence nanosensor was designed for rapid visual detection of ultratrace mercury ions (Hg2+) by using CH3NH3PbBr3 perovskite quantum dots (QDs) based on the surface ion-exchange mechanism. The synthesized CH3NH3PbBr3 QDs can emitt intense green fluorescence with high quantum yield of 50.28%, and can be applied for Hg2+ sensing with the detection limit of 0.124 nM (24.87 ppt) in the range of 0 nM -100 nM. Furthermore, the interfering metal ions have no any influence on the fluorescence intensity of QDs, showing the perovskite QDs possess the high selectivity and sensitivity for Hg2+ detection. The sensing mechanism of perovskite QDs for Hg2+ is has also been investigated by XPS, EDX studies, showing Pb2+ on the surface of perovskite QDs has been partially replaced by Hg2+. Spot plate test shows that the perovskite QDs can also be used for visual detection of Hg2+. Our research indicated the perovskite QDs are promising candidates for the visual fluorescence detection of environmental micropollutants. (C) 2017 Elsevier B.V. All rights reserved.
引用
收藏
页码：109 / 114
页数：6
相关论文
共 42 条
  • [11] Chen LF, 2016, ANALYST, V141, P4685, DOI [10.1039/c6an00740f, 10.1039/C6AN00740F]
  • [12] An overview of recent advances in the application of quantum dots as luminescent probes to inorganic-trace analysis
    Costas-Mora, Isabel
    Romero, Vanesa
    Lavilla, Isela
    Bendicho, Carlos
    [J]. TRAC-TRENDS IN ANALYTICAL CHEMISTRY, 2014, 57 : 64 - 72
  • [13] Facile synthesis of N-acetyl-L-cysteine capped ZnS quantum dots as an eco-friendly fluorescence sensor for Hg2+
    Duan, Junling
    Jiang, Xiaochen
    Ni, Shouqing
    Yang, Min
    Zhan, Jinhua
    [J]. TALANTA, 2011, 85 (04) : 1738 - 1743
  • [14] F. A. Organization, 1972, EV CERT FOOD ADD CON
  • [15] Fundamental physics behind high-efficiency organo-metal halide perovskite solar cells
    Hsiao, Yu-Che
    Wu, Ting
    Li, Mingxing
    Liu, Qing
    Qin, Wei
    Hu, Bin
    [J]. JOURNAL OF MATERIALS CHEMISTRY A, 2015, 3 (30) : 15372 - 15385
  • [16] Determination of Cu, As, Hg and Pb in vegetable oils by electrothermal vaporization inductively coupled plasma mass spectrometry with palladium nanoparticles as modifier
    Hsu, Wan-Hsuan
    Jiang, Shiuh-Jen
    Sahayam, A. C.
    [J]. TALANTA, 2013, 117 : 268 - 272
  • [17] "Turn-On" Fluorescent Sensor for Hg2+ Based on Single-Stranded DNA Functionalized Mn:CdS/ZnS Quantum Dots and Gold Nanoparticles by Time-Gated Mode
    Huang, Dawei
    Niu, Chenggang
    Wang, Xiaoyu
    Lv, Xiaoxiao
    Zeng, Guangming
    [J]. ANALYTICAL CHEMISTRY, 2013, 85 (02) : 1164 - 1170
  • [18] Speciation of mercury in water samples by dispersive liquid-liquid microextraction combined with high performance liquid chromatography-inductively coupled plasma mass spectrometry
    Jia, Xiaoyu
    Han, Yi
    Liu, Xinli
    Duan, Taicheng
    Chen, Hangting
    [J]. SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY, 2011, 66 (01) : 88 - 92
  • [19] RETRACTED: CdS/ZnS core-shell quantum dots capped with mercaptoacetic acid as fluorescent probes for Hg(II) ions (Retracted article. See vol. 183, pg. 1519, 2016)
    Koneswaran, Masilamany
    Narayanaswamy, Ramaier
    [J]. MICROCHIMICA ACTA, 2012, 178 (1-2) : 171 - 178
  • [20] Efficient Hybrid Solar Cells Based on Meso-Superstructured Organometal Halide Perovskites
    Lee, Michael M.
    Teuscher, Joel
    Miyasaka, Tsutomu
    Murakami, Takurou N.
    Snaith, Henry J.
    [J]. SCIENCE, 2012, 338 (6107) : 643 - 647
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