WANG Hongpeng, LIU Anning, LIU Hongji, WANG Dongmei
（School of Chemistry and Bioengineering, Shandong University of Science and Technology, Qingdao 266000, China）
Abstract: Europium ion was selected as the central ion, α-thenoyltrifluoroacetone （TTA） as the first ligand, phenanthroline （phen） as the second ligand and silica（SiO2） as the carrier, the binary complexes Eu（TTA）3·H2O and ternary complexes Eu（TTA）3·phen were synthesized by chemical precipitation method. Two SiO2 supported composites were synthesized by Stöber method. The structure, morphology and fluorescence properties of two Eu complexes and corresponding SiO2 complexes were characterized and analyzed by Fourier transform infrared spectrometer, ultraviolet absorption spectrometer, fluorospectrophotometer, thermal gravimetric analyzer and scanning electron microscope. The effects of SiO2 loading on the fluorescence properties and thermal stability of the complexes were studied by comparing with and without SiO2 loading. The results show that the fluorescence intensity of rare earth complexes carried on SiO2 increase to nearly 2 times, and ternary complexes are better than binary complexes and the thermal stability of SiO2 loaded composites is improved.
Keywords: europium； rare earth complex; silicon dioxide coating
中图分类号：TQ153 文献标志码：A
收稿日期： 2022-04-27， 修回日期：2022-07-07，在线出版时间：2022-11-01。
基金项目：国家自然科学基金项目，编号：21971152。
第一作者简介：王洪鹏（1998—），男，硕士研究生，研究方向为稀土配合物与无机材料复合的合成与应用。E-mail： 11470414422@qq.com。
通信作者简介：王冬梅（1966—），女，教授，博士，硕士生导师，研究方向为稀土配合物的复合与应用。E-mail： skdwdm@163.com。
文章编号：1008-5548（2022）06-0058-06
DOI:10.13732/j.issn.1008-5548.2022.06.007
