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通过差热－热失重、红外光谱和紫外光谱等测试手段，对溶液中合成的吡啶－２－羧酸∶Ｅｕ３＋配合物进行了表征，并且通过原位合成方法在ＳｉＯ２凝胶中合成了吡啶－２－羧酸∶Ｅｕ３＋配合物，与溶液中合成的吡啶－２－羧酸∶Ｅｕ３＋配合物进行了对比。研究发现，ＳｉＯ２凝胶中吡啶－２－羧酸向Ｅｕ３＋的能量传递使Ｅｕ３＋的相对发光强度提高了两个数量级，并且吡啶－２－羧酸∶Ｅｕ３＋配合物在４００℃能稳定存在通过差热－热失重、红外光谱和紫外光谱等测试手段，对溶液中合成的吡啶－２－羧酸∶Ｅｕ３＋配合物进行了表征，并且通过原位合成方法在ＳｉＯ２凝胶中合成了吡啶－２－羧酸∶Ｅｕ３＋配合物，与溶液中合成的吡啶－２－羧酸∶Ｅｕ３＋配合物进行了对比。研究发现，ＳｉＯ２凝胶中吡啶－２－羧酸向Ｅｕ３＋的能量传递使Ｅｕ３＋的相对发光强度提高了两个数量级，并且吡啶－２－羧酸∶Ｅｕ３＋配合物在４００℃能稳定存在。
The pyridine-2-carboxylic acid: Eu3 + complexes synthesized in solution were characterized by differential thermal-thermogravimetry, infrared spectroscopy and UV-vis spectroscopy. The in situ synthesis of pyridine- The 2-carboxylic acid: Eu3 + complex was compared with the pyridine-2-carboxylic acid: Eu3 + complex synthesized in solution. The results showed that the energy transfer of pyridine-2-carboxylic acid to Eu3 + in SiO2 gel increased the relative luminescence intensity of Eu3 + by two orders of magnitude, and the pyridine-2-carboxylic acid: Eu3 + complex could stably exist at 400 ℃ - pyridine-2-carboxylic acid: Eu3 + complexes were characterized by TG-FTIR, FT-IR and UV spectroscopy. Pyridine-2-carboxylate was synthesized by in-situ synthesis Acid: Eu3 + complex was compared with the pyridine-2-carboxylic acid: Eu3 + complex synthesized in solution. The results showed that the energy transfer of pyridine-2-carboxylic acid to Eu3 + in SiO2 gel increased the relative luminescence intensity of Eu3 + by two orders of magnitude, and the pyridine-2-carboxylic acid: Eu3 + complex could stably exist at 400 ℃.