| 王茂宇,卞正亮,李颖.基于镧系金属配合物Eu(DBM)3Phen杂化微球的合成及其荧光传感性能[J].有色金属材料与工程,2025,46(2):51-57. |
| 基于镧系金属配合物Eu(DBM)3Phen杂化微球的合成及其荧光传感性能 |
| Synthesis and fluorescence sensing properties of Eu(DBM)3Phen hybrid microspheres based on lanthanide metal complex |
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| DOI：10.13258/j.cnki.nmme.20240402001 |
| 中文关键词: 镧系金属配合物 荧光探针 SiO2 传感检测 |
| 英文关键词:lanthanide metal complex fluorescent probe SiO2 sensing detection |
| 基金项目:国家自然科学基金资助项目(52002384；52272013) |
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| 中文摘要: |
| 利用种子生长法将SiO2与镧系金属配合物Eu(DBM)3Phen进行复合，设计合成了一种可用于检测水环境中抗生素盐酸洛美沙星（lomefloxacin hydrochloride, LOM）的荧光微球杂化探针。选择二苯甲酰甲烷（dibenzoylmethane, DBM）和1,10-邻菲啰啉（1,10-phenanthroline, Phen）为功能配体，以正硅酸四乙酯（tetraethyl orthosilicate, TEOS）为硅源，在氨水为催化剂、十六烷基三甲基溴化铵（cetyltrimethylammonium bromide, CTAB）为连接剂的条件下获得了一种平均粒径为200 nm的SiO2@Eu(DBM)3Phen杂化微球。采用X射线衍射仪（X-ray diffractometer, XRD）、傅里叶变换红外光谱仪（Fourier transform infrared spectrometer, FT-IR）对SiO2@Eu(DBM)3Phen的结构和性能进行系统地表征，并进一步探究其荧光增强性能。结果表明，随着SiO2的引入，Eu(DBM)3Phen的荧光强度得到有效提高。同时，对不同浓度的LOM进行传感检测试验，得到线性拟合曲线。当LOM的浓度为40～800 μmol/L时，荧光微球杂化探针SiO2@Eu(DBM)3Phen的响应荧光单体对应峰值显著增强。 |
| 英文摘要: |
| A fluorescent microsphere lomefloxacin hydrochloride (LOM) hybridization prob, that can be used for the detection of the antibiotic lomefloxacin hydrochloride in the aqueous environments, has been designed and synthesized by complexing SiO2 with the lanthanide metal complex Eu(DBM)3Phen using the seed growth method. Under the conditions of selecting dibenzoylmethane (DBM) and 1,10-phenanthroline (Phen) as the functional ligands, tetraethyl orthosilicate (TEOS) as the silicon source, ammonia as the catalyst, and cetyltrimethylammonium bromide (CTAB) as the linker, a kind of SiO2@Eu(DBM)3Phen hybrid microsphere with an average size of 200 nm nanometers was obtained. The probe’s structure and properties were systematically characterized by X-ray diffractometer (XRD), Fourier transform infrared spectrometer (FT-IR), and its fluorescence enhancement performance was further investigated. Results showed that the introduction of SiO2 effectively improved the fluorescence intensity of Eu(DBM)3Phen. Meanwhile, sensing detection tests for different LOM concentrations yielded a linear calibration curve: Meanwhile, the sensing detection experiments were carried out on different concentrations of LOM, and linear fitting curves were obtained. When the concentration of LOM is 40-800 μmol/L, the peak value corresponding to the responsive fluorescent monomer of hybridized probe SiO2@Eu(DBM)3Phen are significantly enhanced. |
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