铕
混合材料
发光
光致发光
配体(生物化学)
离子
共价键
化学
水解
无机化学
铝
材料科学
纳米技术
有机化学
生物化学
光电子学
受体
作者
Yajuan Li,Xudong Yu,Xuelei Pang
标识
DOI:10.1016/j.jphotochem.2023.115040
摘要
Aluminum ion is considered as an important ecological pollution because of its wide application in industry. In addition, excessive aluminum ion in water and food will cause great harm to human body. Therefore, it is very important to develop highly sensitive and selective sensors for the detection of aluminum ions. In this work, two kinds of β - diketone ligands (4, 4, 4-trifluoro-1-(2-naphthyl)–1, 3-butanedione (NTA) and 2-thiophenyltrifluoroacetone (TTA)), which have good energy matching with europium ion, are selected as the first ligands, and they are covalently grafted onto the silica network through reactions with triethoxysilyl propyl isonitrile, and then p-bromobenzotripyridine (L) is used as the second ligand. Finally two rare earth europium organic–inorganic hybrid materials, Eu(NTA-Si)3L and Eu(TTA-Si)3L, were obtained by coordination reaction and hydrolytic copolycondensation. Their luminescent properties and cation sensing properties were further studied. Two kinds of rare earth europium organic–inorganic hybrid materials not only display excellent photoluminescence properties, but also have excellent performance in the detection of aluminum ions in THF solution.
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