Uranium, as a naturally radioactive actinide element, plays a significant role in the nuclear industry. It is reasonably necessary to develop a fast and efficient approach for uranyl ions detection. In consideration of the practical application, fluorescent film sensor exhibits great advantages of convenience, ease of being made into portable devices, etc. Herein, a new film senor towards uranyl ion has been designed and fabricated via drawing into an AIE-active (aggregation-induced emission) tetraphenylethene moiety and a carbamoylphosphine oxide chelate moiety through a self-assembled monolayer on quartz glass. Fluorescence spectra measurements demonstrated that the film sensor could be used for detecting UO₂²⁺ in a simple way with the range of 0–0.5 μM, and the calculated limit of detection was as low as 32 nM. On the basis of the results from XPS, NMR, MS, time-resolved fluorescence spectra and absorption spectra measurements, the fluorescence quenching was arising from the UO₂²⁺ located around the tetraphenylethene molecules under the ground state. Furthermore, the film sensor exhibit higher selectivity toward UO₂²⁺ than the other metal ions. These results suggest that the film sensor can be applied as a convenient sensor for the UO₂²⁺ detection.

铀作为一种天然放射性锕系元素，在核工业中发挥着重要作用。有必要开发一种快速有效的铀酰离子检测方法。考虑到实际应用，荧光薄膜传感器具有方便、易于制成便携式设备等优点。在此，设计并制备了一种新型的铀酰离子薄膜传感器。诱导发射）四苯基乙烯部分和氨基甲酰基氧化膦螯合物部分通过石英玻璃上的自组装单层。荧光光谱测量表明薄膜传感器可用于检测 UO ₂ ²⁺以简单的方式在 0–0.5 μM 的范围内，计算出的检测限低至 32 nM。根据XPS、NMR、MS、时间分辨荧光光谱和吸收光谱测量结果，荧光猝灭是由基态下位于四苯基乙烯分子周围的UO ₂ ²⁺引起的。此外，薄膜传感器对UO ₂ ²⁺表现出比其他金属离子更高的选择性。这些结果表明薄膜传感器可以作为一种方便的传感器用于 UO ₂ ²⁺检测。