SBA-15与Eu/Tb配合物杂化材料的原位制备与发光性能  

In Situ Preparation and Luminescence Properties of Hybrid Materials Containing Europium(Ⅲ)/Terbium(Ⅲ) Complexes Covalently Bonded to SBA-15

作　　者：范超君 段志宇 杜一[1] 郭俊芳[1] 郑华明[1] FAN Chao-jun;DUAN Zhi-yu;DU Yi;GUO Jun-fang;ZHENG Hua-ming(School of Materials Science and Engineering, Wuhan Institute of Technology, Wuhan 430073, Chin)

机构地区：[1]武汉工程大学材料科学与工程学院

出　　处：《稀土》2018年第2期25-30,共6页Chinese Rare Earths

基　　金：湖北省自然科学基金项目(2010CDB11104);武汉工程大学科学研究基金项目(11105032);武汉工程大学校长基金项目(2015038)

摘　　要：利用硅烷偶联剂氨丙基三乙氧基硅烷对SBA-15表面氨基改性,再与苯偏三酸酐反应,制备羧基改性的SBA-15。利用红外光谱、XRD和氮气脱附-吸附表征其结构,结果表明羧基成功嫁接在介孔SBA-15的孔道中。将Eu^3＋和Tb^3＋与羧基改性的SBA-15原位配位,制备杂化发光材料,并表征其荧光性能。荧光光谱分析结果表明,所得的杂化材料,均呈现Eu^3＋或Tb^3＋的特征发射,组装体的激发光谱发生了蓝移;相比纯配合物,杂化材料的发光色纯度得到提高。In this study,novel organic-inorganic hybrid mesoporous materials with covalently grafted europium/terbium complexes were prepared by a procedure as follows： first,SBA-15 surface was modified with organosilane（ aminopropyl） triethoxysilane（ APTES）. Then,the trimellitic anhydride（ TMA） was grafted on the surface of the modified SBA-15. APTES and TMA functionalized SBA-15 were designated as SBA-15-NH2 and SBA-15-COOH respectively. They were characterized by XRD,FTIR and nitrogen sorption measurements,and the results reveal that they all have high surface area and uniformity in the mesopore structure. The hybrid luminescent materials containing Ln^3＋（ Ln^3＋= Eu^3＋,Tb^3＋） complexes covalently attached to the functionalized ordered mesoporous TMA-SBA-15 by in-situ coordination. The prepared Eu^3＋/Tb^3＋-SBA-15 composite materials show the excellent luminescent characteristics,which indicates that SBA-15 is a good support for lanthanide complexes.

关 键 词：SBA-15 杂化材料 稀土配合物 发光 

分 类 号：O61[理学—无机化学]