Yu Hongmei, Pandey Nil Kanatha, Xu Yang, Chudal Lalit, Thapa Pawan, Wang Shaoyan, Beyene Tekleab, Chen Wei
School of Chemical Engineering, University of Science and Technology Liaoning, Anshan 114051, People's Republic of China.
Department of Physics, The University of Texas at Arlington, Arlington, Texas 76019, United States.
ACS Omega. 2020 Mar 20;5(12):6919-6927. doi: 10.1021/acsomega.0c00270. eCollection 2020 Mar 31.
Photoluminescence of Eu in DMSO is intense and ultrasensitive to water, thereby providing a novel method for water detection. Herein, for the first time, we investigated the effects of Eu concentration on luminescence and developed a multiparameter method for trace water detection based on a single luminescence agent. To further extend its practical applications, we explored its performance for water detection in ethanol and gasoline. Our findings demonstrate that it is a sensitive and reliable probe for the detection of a wide concentration range of water in ethanol (0-24.24%) and gasoline (0-32.43%), making Eu-DMSO a promising candidate to detect water in a wide concentration range. These phenomena not only make Eu-DMSO a sensitive agent for in situ water detection in real time but also provide scientifically interesting mechanisms behind its application as a water sensing probe.
铕在二甲基亚砜中的光致发光很强，且对水极为敏感，从而提供了一种新型的水检测方法。在此，我们首次研究了铕浓度对发光的影响，并基于单一发光剂开发了一种用于痕量水检测的多参数方法。为了进一步拓展其实际应用，我们探究了其在乙醇和汽油中检测水的性能。我们的研究结果表明，它是一种灵敏且可靠的探针，可用于检测乙醇（0 - 24.24%）和汽油（0 - 32.43%）中宽浓度范围的水，这使得铕 - 二甲基亚砜成为检测宽浓度范围水的有前景的候选物。这些现象不仅使铕 - 二甲基亚砜成为实时原位水检测的灵敏试剂，还为其作为水传感探针的应用背后提供了具有科学趣味的机制。
