材料科学
荧光
膜
发光
罗丹明B
纳米技术
光电子学
光催化
有机化学
化学
生物化学
物理
量子力学
催化作用
作者
Nuan Xu,Zhenhua Tang,Yanping Jiang,Junlin Fang,Li Zhang,Xiaofang Lai,Qijun Sun,Jingmin Fan,Xin‐Gui Tang,Qiu-Xiang Liu,Jikang Jian
标识
DOI:10.1021/acsami.3c12756
摘要
Antibiotics play an essential role in the treatment of various diseases. However, the overuse of antibiotics has led to the pollution of water bodies and food safety, affecting human health. Herein, we report a dual-emission MOF-based flexible sensor for the detection of antibiotics in water, which was prepared by first encapsulating rhodamine B (RhB) by a zeolite imidazolium ester skeleton (ZIF-8) and then blending it with polyvinylidene difluoride (PVDF). The luminescent properties, structural tunability, and flexible porosity of the MOF-based composites were combined with the processability and flexibility of polymers to prepare luminescent membranes. The sensor is capable of dual-emission ratiometric fluorescence sensing of nitrofurantoin (NFT) and oxytetracycline (OTC), exhibiting sensitive detection of fluorescence burst and fluorescence enhancement, respectively, with detection limits of 0.012 μM and 8.9 nM. With the advantages of visual detection, high sensitivity, short detection time, and simplicity, the highly sensitive ratiometric fluorescent flexible sensor has great potential for detecting antibiotics in an aqueous environment. It will further stimulate interest in luminescent MOF-based mixed matrix membranes and their sensing applications.
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