Eu基MOFs荧光材料的制备及识别小分子性质  

Synthesis of Fluorescence MOFs with Eu and Recognition of Small Molecular Property

作　　者：金秋[1] 李蒙 魏海英[1] 

机构地区：[1]河北大学化学与环境科学学院,河北保定071000

出　　处：《广州化工》2017年第22期37-40,共4页GuangZhou Chemical Industry

摘　　要：设计合成了以Eu为金属骨架,均苯三甲酸(H3BTC)为配体的复合材料Eu(BTC)·(H2O)6,通过X-射线衍射、氮气吸附和荧光光谱等表征了该材料的结构和荧光特性。通过荧光强度的变化研究了该材料对溶剂小分子的识别,研究结果表明:在九种不同极性的溶剂分子中显示不同的荧光强度;与中等极性的乙腈溶剂相比,随着强极性的氯仿溶剂的加入量增加,荧光强度逐渐增加,相反随着非极性丙酮溶剂的加入,荧光强度逐渐降低。为该材料作为识别不同极性的小分子提供重要的实验依据。Composing of rare earth element Eu as the metal skeleton and trimellitic acid（H3 BTC） as the organic ligand,the material [Eu（BTC） ·（H2 O）6]was designed and synthesized. Its structure and fluorescence properties were characterized by X-ray diffraction,N2 adsorption device and fluorescence spectroscopy. Moreover,the recognition for small solvent molecular was carried out. The results showed that the fluorescence intensity was different in the nine different polarities solvent solution. Compared with the fluorescence intensity in neutral polar acetonitrile solvent,the fluorescence intensity gradually decreased with the addition of non-polar acetone solvent. On the contrary,the fluorescence intensity gradually increased with the addition of the strong polarity of the chloroform solvent,which provided the important experimental basis on Eu（BTC） ·（H2 O）6 as the material for recognition of small molecules with different polarities.

关 键 词：金属有机骨架材料 均苯三甲酸 荧光 识别 

分 类 号：O611.4[理学—无机化学]