新型有机-无机多孔SiO2杂化发光材料的制备与性能测试

项目名称： 新型有机-无机多孔SiO2杂化发光材料的制备与性能测试

项目编号： No.21203136

项目类型： 青年科学基金项目

立项/批准年度： 2013

项目学科： 物理化学

项目作者： 李育珍

作者单位： 太原理工大学

项目金额： 25万元

中文摘要： 以萘二酸酐及其衍生物为荧光物质负载于介孔分子筛孔道内制备一类新型纳米有机-无机多孔SiO2荧光杂化材料。结合各种表征手段（X射线衍射、透射电镜、扫描电镜、红外光谱、N2吸-脱附、核磁共振硅谱、元素分析、时间分辨荧光光谱、荧光发射光谱、激发光谱等），对有机发光分子在介孔材料中的装载和发光行为进行系统研究。深入考察介孔表面性质、孔道尺寸以及结构特点与荧光分子间的作用关系。揭示出分子筛极性和量子尺寸效应对多孔杂化材料荧光性能的影响。利用密度泛函理论和热分解方程通过剖析发光分子在介孔结构中的表面环境以及与表面基团的作用方式，阐明发光分子在杂化材料中的存在状态以及热力学性能。为进一步研究光电材料应用提供重要的实验依据。

中文关键词： 荧光标记物；固载；功能化；杂化材料；分子筛

英文摘要： A novel luminescent hybrid SiO2 mesoporous silicas will be prepared via grafting 1,8-Naphthalic anhydride and its derivatives into the channels of mesopores molecular sieves. Combined with various characterization methods, the resulting samples will be characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), scanning electron microscope(SEM), fourier transform infrared spectroscopy (FT-IR), N2 adsorption/desorption, 29Si NMR analysis, elemental analysis, time-resolved emission spectra, emission spectra and excite spectra etc), the loading and luminescence behavior of organic fluorescence molecules in mesoporous materials will be studied systematically. The relationship among surface properties of mesoporous, pore size and structural characteristics with fluorescent molecules will also be researched in-depth. The influence of the polarity of the silica matrix and quantum confinement effectiveness on the fluorescence property of the hybrids will be revealed. With the help of the density function theory and the thermal decomposition kinetics analysis, the surface environment of the organic fluorescence molecules in mesoporous materials and the mode of action between the organic fluorescence molecules with the surface group will be analyzed, the existential state of the organic fluorescence

英文关键词： Fluorescent signaling；Immobilization；Functionalization；hybrids materials；mesoporous silicas