One-pot hydrothermal synthesis of dual-emission fluorescent carbon dots for hypochlorous acid detection
One-pot hydrothermal synthesis of dual-emission fluorescent carbon dots for hypochlorous acid detection
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一锅水热合成次氯酸检测用双发射荧光碳点
DOI：
10.1016/j.dyepig.2020.108507
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发表时间：
2020-09
影响因子：
4.5
通讯作者：
Kui Zhang
中科院分区：
文献类型：
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作者：
Cheng Zhang;Meilin Liu;Taotao Li;Shengjun Liu;Qian Chen;Jian Zhang;Kui Zhang
In this work, we developed a dual-emission fluorescent carbon dots (CDs) using sodium citrate (SC), triethylenetetramine (TETA) and rose bengal (RB) as raw materials. Under the hydrothermal treatment, the carboxyl group in SC can crosslink with the amino group in TETA to form polymer-like intermediate by amide bond network. The RB molecule, a fluorescein derivative, lost halogen atoms under hydrothermal conditions and integrated with the skeleton structure of the network intermediate. Further dehydration and carbonization resulted in the dual-emission fluorescent CDs. Excited by ultraviolet (UV) light, the CDs exhibited blue and green luminescence centered at 440 nm and 525 nm, respectively. Due to the emission centers of these two colors showed different sensitivity to hypochlorous acid (HClO), we have designed a fluorescence assay to achieve quantitative detection of HClO. Upon addition of different concentrations of HClO to CDs solution in phosphate buffer (pH = 6), the blue emission decreased gradually while the green emission showed only a minimal decrease. By calculating the emission intensity ratio, a good linear relationship was achieved in the range of 0–17 μM, and the limit of detection was as low as 0.75 μM. The results reported here demonstrated a promising way to design organic dye modified CDs for sensing applications.
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影响因子：
10.9
作者：
Chaiendoo, Kanokwan;Ittisanronnachai, Somlak;Ngeontae, Wittaya
通讯作者：
Ngeontae, Wittaya
新型高量子产率聚合物碳点：从合成到荧光机理研究
影响因子：
4.6
作者：
Tao Songyuan;Song Yubin;Zhu Shoujun;Shao Jieren;Yang Bai
通讯作者：
Yang Bai
影响因子：
5.5
作者：
HABETS, JMW;GEURSENREITSMA, AM;VANJOOST, T
通讯作者：
VANJOOST, T
影响因子：
10.8
作者：
Jinyi Zhang;Shihong Wu;Xiaomei Lu;Peng Wu;Juewen Liu
通讯作者：
Jinyi Zhang;Shihong Wu;Xiaomei Lu;Peng Wu;Juewen Liu
影响因子：
3.2
作者：
通讯作者：
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