CH3NH3Br solution as a novel platform for the selective fluorescence detection of Pb2+ ions
CH3NH3Br solution as a novel platform for the selective fluorescence detection of Pb2+ ions
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DOI：
10.1038/s41598-019-52431-y
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发表时间：
2019-11
影响因子：
4.6
通讯作者：
Jun Yan;Yuchun He;Yunlin Chen;Yongzhe Zhang;Hui Yan
中科院分区：
文献类型：
--
作者：
Jun Yan;Yuchun He;Yunlin Chen;Yongzhe Zhang;Hui Yan
开发一种简单的荧光传感器来检测Pb2+重金属是至关重要的。ch3nh3pbbr3钙钛矿材料表现出优异的光致发光性能，这与Pb2+有关。基于Pb2+对CH3NH3PbBr3发光特性的影响，我们设计了一种新的Pb2+离子选择性荧光检测平台。本文采用高浓度的CH3NH3Br溶液作为荧光探针。将pbbr2掺入CH3NH3Br溶液中会产生快速的化学反应，生成CH3NH3PbBr3。因此，非荧光CH3NH3Br材料在紫外光照射下对Pb2+表现出敏感和选择性的发光响应。此外，CH3NH3Br与pbbr2反应可将Pb2+转化为CH3NH3PbBr3，因此CH3NH3Br也可用于回收应用中从废液中提取Pb2+。
The development of a simple fluorescent sensor for detecting the Pb2+heavy metal is fundamentally important. The CH3NH3PbBr3perovskite material exhibits excellent photoluminescence properties that are related to Pb2+. Based on the effects of Pb2+on the luminescent properties of CH3NH3PbBr3, we design a novel platform for the selective fluorescence detection of Pb2+ions. Herein, we use a CH3NH3Br solution at a high concentration as the fluorescent probe. Incorporation of PbBr2into the CH3NH3Br solution results in a rapid chemical reaction to form CH3NH3PbBr3. Hence, the nonfluorescent CH3NH3Br material displays a sensitive and selective luminescent response to Pb2+under UV light illumination. Moreover, the reaction between CH3NH3Br and PbBr2could transform Pb2+into CH3NH3PbBr3, and therefore, CH3NH3Br may also be used to extract Pb2+from liquid waste in recycling applications.