Fu J, Zhang L, Wang SL, Yuan WL, Zhang GH, Zhu QH, Chen H, He L, Tao GH. Ultralow-cost portable device for cesium detection via perovskite fluorescence.
JOURNAL OF HAZARDOUS MATERIALS 2022;
425:127981. [PMID:
34883380 DOI:
10.1016/j.jhazmat.2021.127981]
[Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2021] [Revised: 11/21/2021] [Accepted: 12/01/2021] [Indexed: 06/13/2023]
Abstract
Public anxiety and concern from cesium pollution in oceans have been back on the agenda since tons of nuclear waste water were announced to be poured into oceans. Cesium ion can easily enter organisms and bioaccumulate in animals and plants, thus its harm is chronic to humans through food chains. Here we showed a kind of hybrid ionic liquid membrane (HILM) for detection of cesium ion in seawater through CsPbBr3 perovskite fluorescence. With sustainability in mind, HILM was built frugally. The lowest cost of HILM is below 3 cents per piece. The HILM can detect cesium ion quickly with eye-readable fluorescence signal. Ultracheap, portable, easy-to-use on-site detection device could offer benefit for personal security and applications in environment science and ecology in the future decades.
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