Developing a green, non-toxic and easy to synthesize of fluorescence probe for fast and visual detecting trace water in various organic solvents was an important task. Here, a novel dual-emission fluorescence probe (b/r-CDs) was designed based on the red CDs (r-CDs) and blue CDs (b-CDs) to detect the trace water and enhance the visualization for naked-eye observation in different organic solvents. Among, the red fluorescence carbon dots (CDs) was found to have the capability to monitor trace amounts of water, which synthesized with green tea by facile ultrasonic method. Further, Such a dual-emission probe could fast monitor trace water in various organic solvents with high stability and fast response. Importantly, a synergistic mechanism of the dynamic process (b-CDs) and static quenching (r-CDs) was proved for the study of water detection. Moreover, the test paper was made for detecting trace water in different organic solvents, achieving convenient and effective detection.

开发一种绿色，无毒且易于合成的荧光探针，以快速，直观地检测各种有机溶剂中的痕量水是一项重要任务。在这里，基于红色CD（r-CD）和蓝色CD（b-CD）设计了一种新型的双发射荧光探针（b / r-CD），以检测痕量水并增强肉眼观察的可视化在不同的有机溶剂中。其中，红色荧光碳点（CD）被发现具有监测痕量水的能力，而水是通过简便的超声波方法与绿茶合成的。此外，这种双发射探针可以以高稳定性和快速响应来快速监测各种有机溶剂中的痕量水。重要的是，动态过程（b-CDs）和静态猝灭（r-CDs）的协同机制被证明用于水检测的研究。