Abstract Fluorescent tremella-like carbon nanosheets (TCNs) were hydrothermally synthesized using citric acid and adenosine as the starting materials. The resulting product had high quantum yield, water-solubility, and photostability. The addition of 2,4,6-trinitrophenol (TNP) induces remarkable fluorescence quenching, and this phenomenon was used to construct a TNP fluorescence sensor. The fluorescence quenching of TCNs by TNP was shown to be likely due to the inner filter effect. The developed sensor has a wide linear range from 0.05 to 50.0 μM with a detection limit of 5 nM. The TCN-based sensor was used for the determination of TNP in lake water with satisfactory recoveries from 98% to 103%.

中文翻译：

---

荧光银耳状碳纳米片的合成及其在2,4,6-三硝基苯酚传感中的应用

摘要 以柠檬酸和腺苷为原料，水热合成了荧光银耳状碳纳米片（TCNs）。所得产物具有高量子产率、水溶性和光稳定性。2,4,6-三硝基苯酚（TNP）的加入引起显着的荧光猝灭，并利用这种现象构建了TNP荧光传感器。TNP 对 TCN 的荧光猝灭可能是由于内部过滤效应。开发的传感器具有从 0.05 到 50.0 μM 的宽线性范围，检测限为 5 nM。基于 TCN 的传感器用于测定湖水中的 TNP，回收率从 98% 到 103% 不等。