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

被引:75
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
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
[1]  
AMINZAKI L, 1974, PEDIATRICS, V54, P587
[2]   Slurry sampling in serum blood for mercury determination by CV-AFS [J].
Aranda, Pedro R. ;
Gil, Raul A. ;
Moyano, Susana ;
De Vito, Irma ;
Martinez, Luis D. .
JOURNAL OF HAZARDOUS MATERIALS, 2009, 161 (2-3) :1399-1403
[3]   Triethanolamine-capped CdSe quantum dots as fluorescent sensors for reciprocal recognition of mercury (II) and iodide in aqueous solution [J].
Bin Shang, Zhuo ;
Wang, Yu ;
Jin, Wei Jun .
TALANTA, 2009, 78 (02) :364-369
[4]   High performance hybrid solar cells sensitized by organolead halide perovskites [J].
Cai, Bing ;
Xing, Yedi ;
Yang, Zhou ;
Zhang, Wen-Hua ;
Qiu, Jieshan .
ENERGY & ENVIRONMENTAL SCIENCE, 2013, 6 (05) :1480-1485
[5]   Preparation, characterization and evaluation of water-soluble L-cysteine-capped-CdS nanoparticles as fluorescence probe for detection of Hg(II) in aqueous solution [J].
Cai, ZX ;
Yang, H ;
Zhang, Y ;
Yan, XP .
ANALYTICA CHIMICA ACTA, 2006, 559 (02) :234-239
[6]   Ultrasensitive Copper(II) Detection Using Plasmon-Enhanced and Photo-Brightened Luminescence of CdSe Quantum Dots [J].
Chan, Yang-Hsiang ;
Chen, Jixin ;
Liu, Qingsheng ;
Wark, Stacey E. ;
Son, Dong Hee ;
Batteas, James D. .
ANALYTICAL CHEMISTRY, 2010, 82 (09) :3671-3678
[7]   Magnetic solid phase microextraction on a microchip combined with electrothermal vaporization-inductively coupled plasma mass spectrometry for determination of Cd, Hg and Pb in cells [J].
Chen, Beibei ;
Heng, Shujing ;
Peng, Hanyong ;
Hu, Bin ;
Yu, Xu ;
Zhang, Zhiling ;
Pang, Daiwen ;
Yue, Xin ;
Zhu, Ying .
JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY, 2010, 25 (12) :1931-1938
[8]   A novel fluorescent array for mercury (II) ion in aqueous solution with functionalized cadmium selenide nanoclusters [J].
Chen, Jinlong ;
Gao, YingChun ;
Xu, ZhiBing ;
Wu, GenHua ;
Chen, YouCun ;
Zhu, ChangQing .
ANALYTICA CHIMICA ACTA, 2006, 577 (01) :77-84
[9]   Functionalized cadmium sulfide quantum dots as fluorescence probe for silver ion determination [J].
Chen, JL ;
Zhu, CQ .
ANALYTICA CHIMICA ACTA, 2005, 546 (02) :147-153
[10]   Highly selective and sensitive determination of copper ion based on a visual fluorescence method [J].
Chen, Linfeng ;
Tian, Xike ;
Yang, Chao ;
Li, Yong ;
Zhou, Zhaoxin ;
Wang, Yanxin ;
Xiang, Fang .
SENSORS AND ACTUATORS B-CHEMICAL, 2017, 240 :66-75