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CH3NH3Br solution as a novel platform for the selective fluorescence detection of Pb2+ ions.

ABSTRACT: The development of a simple fluorescent sensor for detecting the Pb2+ heavy metal is fundamentally important. The CH3NH3PbBr3 perovskite 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 PbBr2 into 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 PbBr2 could transform Pb2+ into CH3NH3PbBr3, and therefore, CH3NH3Br may also be used to extract Pb2+ from liquid waste in recycling applications.

SUBMITTER: Yan J 

PROVIDER: S-EPMC6825161 | biostudies-literature | 2019 Nov

REPOSITORIES: biostudies-literature

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CH<sub>3</sub>NH<sub>3</sub>Br solution as a novel platform for the selective fluorescence detection of Pb<sup>2+</sup> ions.

Yan Jun J   He Yuchun Y   Chen Yunlin Y   Zhang Yongzhe Y   Yan Hui H  

Scientific reports 20191101 1

The development of a simple fluorescent sensor for detecting the Pb<sup>2+</sup> heavy metal is fundamentally important. The CH<sub>3</sub>NH<sub>3</sub>PbBr<sub>3</sub> perovskite material exhibits excellent photoluminescence properties that are related to Pb<sup>2+</sup>. Based on the effects of Pb<sup>2+</sup> on the luminescent properties of CH<sub>3</sub>NH<sub>3</sub>PbBr<sub>3</sub>, we design a novel platform for the selective fluorescence detection of Pb<sup>2+</sup> ions. Herein, we us  ...[more]

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