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

被引：12

作者：

Yan, Jun ^{[1
]}

He, Yuchun ^{[1
]}

Chen, Yunlin ^{[1
]}

Zhang, Yongzhe ^{[2
]}

Yan, Hui ^{[2
]}

机构：

[1] Beijing Jiaotong Univ, Sch Sci, Inst Appl Micronano Mat, Beijing 100044, Peoples R China

[2] Beijing Univ Technol, Coll Mat Sci & Engn, Beijing 100124, Peoples R China

来源：

SCIENTIFIC REPORTS | 2019年 / 9卷 / 1期

基金：

中国国家自然科学基金;

关键词：

PEROVSKITE QUANTUM DOTS; LIGHT-EMITTING DEVICES; PHOTOLUMINESCENCE; HYBRID; PRECONCENTRATION; NEUROTOXICITY; NANOPARTICLES; ABSORPTION; CU;

D O I：

10.1038/s41598-019-52431-y

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

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.

引用

页数：7

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