费斯特共振能量转移
荧光
孔雀石
猝灭(荧光)
发光
化学
选择性
纳米技术
分析化学(期刊)
材料科学
化学工程
光化学
孔雀绿
光电子学
色谱法
有机化学
催化作用
吸附
工程类
铜
物理
量子力学
出处
期刊:Food Chemistry
[Elsevier]
日期:2021-08-01
卷期号:354: 129584-129584
被引量:40
标识
DOI:10.1016/j.foodchem.2021.129584
摘要
An ingenious nanoscale fluorescent sensor derived from Eu3+-postfunctionalized MIL-53 (Al) (Eu3+@MIL-53 [Al]) was fabricated though a simple and effective approach. Malachite green (MG) effectively turned off the luminescence of Eu3+@MIL-53 (Al) via fluorescence resonance energy transfer (FRET), thus enabling MG sensing. The developed probe exhibited instantaneous reusability after being cleaned with deionized water. The fluorescence intensity, quenching efficiency, and crystal structure of the recoverable sensor after five recycling processes were unchanged compared with those of the original sample. Moreover, the potential mechanism of MG detection was revealed in detail. This work represents the first attempt to determine MG in aquaculture water and products by using metal–organic frameworks (MOFs). The Eu3+@MIL-53 (Al) probe proved to be a remarkable fluorescence probe for MG with high selectivity, sensitivity, and excellent regeneration capability. It provides a promising functional platform for the recognition of illegal MG addition to aquaculture water and products.
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