荧光
发光
罗丹明B
罗丹明
光化学
激发
发射强度
化学
热液循环
分析化学(期刊)
检出限
材料科学
光电子学
光学
化学工程
色谱法
有机化学
光催化
物理
电气工程
工程类
催化作用
作者
Xiaoxiao Gao,Yan Zhang,Zheng Fu,Jiashuo Tian,Liuping Zhang,Wanqiong Li,Shuailiang Li,Fengling Cui
标识
DOI:10.1016/j.diamond.2023.110220
摘要
In this paper, rhodamine B (RhB) was modified on carbon dots (CDs) by hydrothermal method, and a double emission ratiometric fluorescent probe (RhB-CDs) with red luminescence was successfully constructed. The synthesized RhB-CDs had exceptional optical properties and exhibit two emission peaks (480 nm and 590 nm) at 350 nm excitation. It could be used for ratiometric detection of MnO4− and Cr2O72−, and the fluorescent color would also change (red to orange) when the pH changed from 6 to 7, showing great application potential in the field of sensing and detection. Moreover, the ratio of the emission peak fluorescence intensity had a linear relationship with the water content of alcohols, which was successfully used to detect actual water samples. In addition, the synthesized RhB-CDs had low cytotoxicity and were successfully used for multicolor cell imaging.
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