杂化材料Eu(Phen)_2Cl_3/MCM-48的荧光性能及热稳定性  

Photoluminescence and Thermal Stability of Hybrid Materials Eu(Phen)_2Cl_3/MCM-48

作　　者：张兰芬[1] 杨良准[1] 沈新峰[1] 任黎雯[1] 余锡宾[1] 金雪琴[1] 

机构地区：[1]上海师范大学化学系,上海200234

出　　处：《材料科学与工程学报》2008年第4期589-592,共4页Journal of Materials Science and Engineering

基　　金：上海科技发展基金资助项目(0752nm008)

摘　　要：采用超声波辅助,溶液浸渍法将稀土配合物Eu(Phen)2Cl3装入中孔分子筛MCM-48孔道,合成了不同组装量的杂化材料Eu(Phen)2Cl3/MCM-48。运用XRDI、CP、N2吸附-脱附、DTA-TG、TEM、荧光光谱等手段对杂化材料进行了表征,研究表明稀土配合物已进入分子筛孔道,且随着配合物嵌入量的增加,杂化材料的荧光发射也逐渐增强。经ICP分析得出Eu(Phen)2Cl3在MCM-48中的饱和吸附量为8.6%,此时荧光强度最大。与纯稀土配合物Eu(Phen)2Cl3相比,Eu(Phen)2Cl3/MCM-48的热稳定性提高了约200℃。A series of hybrid materials Eu（Phen）2Cl3/MCM-48 have been synthesized by sol-soaking of MCM-48 into Eu（Phen）2Cl3 methanol solution under the assistant of ultrasonic. The as-prepared products were characterized by XRD, ICP, BET, DTA-TG, TEM, and PL, respectively. The results indicate that the rare earth compound has been doped into the hole of mesoporouse material MCM-48. The PI. intensities of the hybrid materials increase with increasing of the doping concentration of the rare-earth complexes. According to the ICP analysis, the saturated doping concentration of Eu（Phen）2 Cl3 is 8.6 % （mt % ）, at which the PL intensity of the hybrid matorial reaches the maximum. Compared with the pure rare-earth complex, the thermal stability of the hybrid materials is enhanced by about 200 ℃.

关 键 词：Eu(Ⅲ)配合物 MCM-48 杂化材料 荧光性能 热稳定性 

分 类 号：O614.33[理学—无机化学]