Eu(TTA)3/MCM-41介孔复合体的溶胶-凝胶法组装

中国稀土学报, 2000, 18(4): 305-308.

Eu(TTA)3/MCM-41介孔复合体的溶胶-凝胶法组装

姚云峰 ^1, , 张迈生 ^2, , 石建新 ^3, , 龚孟廉 ^4, , 张洪杰 ^5, , 杨燕生 ^6,

1.中山大学化学与化学工程学院,广东,广州,510275;中国科学院长春应用化学研究所稀土化学与物理开放实验室,吉林,长春,130022

2.中山大学化学与化学工程学院,广东,广州,510275

3.中山大学化学与化学工程学院,广东,广州,510275;中国科学院长春应用化学研究所稀土化学与物理开放实验室,吉林,长春,130022

4.中山大学化学与化学工程学院,广东,广州,510275

5.中国科学院长春应用化学研究所稀土化学与物理开放实验室,吉林,长春,130022

6.中山大学化学与化学工程学院,广东,广州,510275

基金项目: 中国科学院重点实验室基金中山大学校科研和教改项目(3200901)

关键词：稀土 , 铕 , Eu(TTA)3/MCM-41介孔复合体 , 溶胶-凝胶法

Encapsulation of Eu(TTA)3 into MCM-41 Mesoporous Molecular Sieve by Sol-Gel Method

利用溶胶-凝胶法将稀土配合物Eu(TTA)3组装到MCM-41介孔分子筛的孔道中, 并初步认定客体分子Eu(TTA)3是以加合物形式包裹于表面活性剂胶束中. 该法制得的介孔复合体Eu(TTA)3/MCM-41, 用XRD、 HRTEM技术证实具有短程有序的、规整的六方介孔结构和大小分布均匀的纳米晶粒. 对其光致发光和荧光寿命的研究发现: 与乙醇溶液中相比, Eu3+的荧光寿命没有发生改变, 但Stokes位移却明显增大;复合体中, 能量是从主体MCM-41传递到客体Eu(TTA)3上.

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