Pyren-DT, as an AIE material, is facile prepared for detecting Hg²⁺ in aqueous. The obtained Pyren-DT sample is characterized via LC-MS and ¹HNMR. Pyren-DT shows admirable an aggregation induced fluorescent emission (AIE) character in DMF-H₂O mixture solvent with the water volume fraction (f_w) beyond 80%. With the f_w given at 70%, Pyren-DT probe presents turn-on fluorescent probe property with fluorescent intensity at 462 nm reliably positive linear with concentration of Hg²⁺. The LOD of the probe reaches 2.88 × 10⁻⁸ mol·L⁻¹. The Pyren-DT probe shows good selectivity and sensibility towards Hg²⁺ and strong anti-interference towards some cations and anions. Pyrene-1-carbaldehyde is produced by the reaction between Pyren-DT and Hg²⁺. In the detection of real water samples, the probe shows better fluorescence characteristics in the system of river water samples rather than in the tap water samples for detecting mercury ion.

作为AIE材料的Pyren-DT易于制备，用于检测水溶液中的Hg ²⁺。所得的Pyren-DT样品通过LC-MS和¹ HNMR进行表征。Pyren-DT在DMF-H ₂ O混合溶剂中的水体积分数（f _w）超过80％时显示出令人赞叹的聚集诱导荧光发射（AIE）特性。当f _w为70％时，Pyren-DT探针具有开启的荧光探针特性，在462 nm处的荧光强度与Hg ²⁺浓度呈可靠的线性正相关。该探针的LOD达到2.88×10 ^-8莫尔^-1。Pyren-DT探针对Hg ²⁺具有良好的选择性和敏感性对某些阳离子和阴离子具有很强的抗干扰性。Pyren-DT与Hg ²⁺之间的反应生成了-1-甲醛。在检测真实水样中，该探针在河水样系统中显示出比在自来水样中检测汞离子更好的荧光特性。