A novel dual functional composite (MOF_L-TpBD) was prepared through solvothermal methods, with excellent Pb²⁺ ions separation and stable 2,4,6-Trinitrophenol (TNP) fluorescence detection performance. MOF_L-TpBD was characterized by FTIR, XRD, XPS, SEM and TGA et al. The prepared material was used to extract Pb²⁺ ions, with an adsorption capacity of 21.74 mg g^-1 calculated by Langmuir isotherm model. The limit of detection was 0.32 μg L^-1, along with a linear range from 0.7 μg L^-1 to 12 μg L^-1 and a precision of 5.4% (1 μg L^-1, n = 9), respectively, where MOF_L-TpBD was adopted as adsorbent for Pb²⁺ ions preconcentration. The practical samples and reference water sample were measured by the provided method, with the satisfactory recoveries (91% - 110%) and reliable analytical results. MOF_L-TpBD was capable of fluorescent sensing of TNP, with a linear range from 0.01 mM to 1 mM and a limit of detection of 3.52 μM, respectively, and a precision of 3.29% was obtained (0.2 mM, n = 11). Meanwhile, the recoveries ranged from 91% to 108% in analysis of TNP for the practical samples. The designed material provided a potential candidate material for the detection of heavy metal ions and explosives in environmental water samples.

通过溶剂热法制备了新型的双功能复合物（MOF _L -TpBD），具有优异的Pb ²⁺离子分离性能和稳定的2,4,6-三硝基苯酚（TNP）荧光检测性能。MOF _L -TpBD通过FTIR，XRD，XPS，SEM和TGA等进行了表征。所制备的材料用于提取Pb ²⁺离子，根据朗缪尔等温线模型计算，其吸附容量为21.74 mg g ^-1。检测限为0.32μgL ^-1，线性范围为0.7μgL ^-1至12μgL ^-1，精密度分别为5.4％（1μgL ^-1，n = 9），其中MOF_大号-TpBD被用作Pb ²⁺离子预浓缩的吸附剂。通过所提供的方法对实际样品和参比水样品进行了测定，回收率令人满意（91％-110％）并且分析结果可靠。MOF _L -TpBD能够荧光检测TNP，线性范围从0.01 mM到1 mM，检出限分别为3.52μM，并且获得了3.29％的精密度（0.2 mM，n = 11）。同时，实际样品的TNP分析回收率在91％到108％之间。设计的材料为检测环境水样中的重金属离子和爆炸物提供了潜在的候选材料。