MCM-41介孔分子筛负载咔唑类荧光分子杂化材料的合成及发光性质  

Synthesis and Luminescent Properties of Carbazole-Based Fluorescent Molecules Incorporated into Mesoporous Molecular Sieve MCM- 41

作　　者：吕良忠[1] 刘睿[1,2] 宋广亮[1,2] 黄诚[2] 朱红军[2] 

机构地区：[1]江苏长青农化股份有限公司,江苏扬州225218 [2]南京工业大学化学与分子工程学院应用化学系,江苏南京211816

出　　处：《精细化工》2015年第7期726-730,共5页Fine Chemicals

基　　金：江苏省博士后科研资助计划(1302089C);江苏省自然科学基金(BK20130926);江苏省高校自然科学研究面上项目(13KJB150018)~~

摘　　要：通过浸渍法将5种咔唑类荧光分子负载于介孔材料MCM-41上,制备有机-无机杂化复合荧光材料,并对咔唑荧光分子和杂化复合材料的表面结构、紫外-可见吸收、荧光发射等性质进行了对比。结果表明,负载后的咔唑类荧光分子分散于MCM-41孔道上,材料热稳定性提高,在100~350℃内没有明显失重,其紫外吸收和荧光发射也发生明显蓝移（λmaxabs=331~368 nm,λmaxem=401~435 nm）。制备的杂化复合材料可用作蓝色荧光材料（λmaxem=401~435 nm）。Five carbazole-based fluorescent molecules were incorporated into mesoporous molecular sieve MCM- 41 by impregnation method. Their photophysical properties were investigated systematically via XRD,UV-vis absorption and emission spectra in both solution and solid states. The absorption and emission properties of these fluorescent materials could be effectively changed by being loaded onto MCM- 41. These carbazole-based fluorescent molecules dispersed in the MCM- 41 mesoporous channels and no obvious mass losses were observed within the temperature range of 100 ~350 ℃,which indicates that the thermal stability of these materials is improved. Meanwhile,these hybrid materials show significant blue-shifts in their UV-vis absorption and fluorescent spectra compared to the fluorescent molecules in solid state. These hybrid materials can be utilized as efficient blue fluorescent materials（ λmaxem= 401 ~ 435 nm）.

关 键 词：咔唑 MCM-41 荧光 功能材料 

分 类 号：O345[理学—固体力学]