| 铕(Ⅲ)金属有机骨架作为荧光探针在水溶液中对Pb2+的选择性和灵敏性传感Ⅲ | |
| Europium(Ⅲ) metal-organic framework as a fluorescent probe for selectively and sensitively sensing Pb2+ in aqueous solution | |
| 摘要: 以单芳环多羧酸苯六甲酸(H6BHC)为配体，与Eu (NO3)3·6H2O进行水热反应，成功得到了一个新的铕金属有机骨架(H3O)6[Eu (BHC)(H2O)]2·H2O (1)。单晶X射线衍射分析表明：在1中，相邻的2个Eu (Ⅲ)离子通过BHC6-桥联成二聚单元并作为一个结点，结点之间通过BHC6-桥沿a轴和c轴相连形成二维层状结构，最后沿着b轴通过氢键的交联作用形成三维网络结构。光致发光测试表明1可以在水体系中实现对Pb2+的选择性和灵敏性传感且检测限(LOD)低至0.42 μmol·L-1。 | |
| 关键词: 铕 苯六甲酸 金属有机骨架 荧光探针 检测 铅离子 | |
| 基金项目: 海军军医大学面上孵化基金(No.2023MS011)资助。 | |
| Abstract: A novel europium metal-organic framework (Eu-MOF) with formula (H3O)6[Eu(BHC)(H2O)]2·H2O (1) has been synthesized successfully via the hydrothermal method by using a monoaromatic polycarboxylic acid ligand benzenehexacarboxylic acid (H6BHC) reacting with Eu(NO3)3·6H2O. Singlecrystal X-ray diffraction analysis reveals that in 1 the adjacent two Eu(Ⅲ) cations are bridged by the BHC6- ligands to form the Eu dinuclear unit as a node, and then the Eu dinuclear nodes join each other via the BHC6- as bridges plus the hydrogen bond interactions along a-, b- and c-axis to form a unique 3D network structure. Photoluminescence measurement indicates that 1 possesses the following advantages as the fluorescent probe: 1 displayed a very low limit of detection (LOD) for Pb2+ (0.42 μmol·L-1) in an aqueous system, and 1 demonstrated higher selectivity. | |
| Keywords: europium benzenehexacarboxylic acid metal-organic framework fluorescent probe detection lead cation | |
| 投稿时间：2024-06-27 修订日期：2024-09-10 | |
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| 罗俊,刘宝姝,张运昌,王柄凯,郭贝贝,佘岚,陈天恒.铕(Ⅲ)金属有机骨架作为荧光探针在水溶液中对Pb2+的选择性和灵敏性传感Ⅲ[J].无机化学学报,2024,40(12):2438-2444. | |
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| Support information: 相关附件： 20240240_wjhxxb2024ok-supporting_information-rev5.doc | |
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