文献类型：期刊文献

英文题名：Preparation and characterization of encapsulation of europium complex into meso-structured silica monoliths using PEG as the template

作者：Chen, Yu[1];Chen, Qi[1,2];Song, Li[2];Li, Hui-ping[2];Hou, Feng-zhen[2]

机构：[1]E China Univ Sci & Technol, Sch Mat Sci & Engn, Key Lab Ultrafine Mat, Minist Educ, Shanghai 200237, Peoples R China;[2]E China Univ Sci & Technol, Dept Inorgan Mat, Shanghai 200237, Peoples R China

年份：2009

卷号：122

期号：1-3

起止页码：7

外文期刊名：MICROPOROUS AND MESOPOROUS MATERIALS

收录：;EI(收录号：20091712047986);WOS:【SCI-EXPANDED(收录号:WOS:000266061500002)】；

基金：The authors would like to thank financial support by Shanghai Leading Academic Discipline Project (Project No. B502).

语种：英文

外文关键词：Sol-gel; Meso-structured; Monolith; Fluorescence; Lifetime

摘要：Europium complex, Eu(BA)(3)Phen (BA = benzoic acid and Phen = 1,10-phenanthroline), was encapsulated in meso-structured silica monoliths, which were using PEG (PEG = polyethylene glycol) as a low cost template and synthesized via sol-gel methods. The monoliths were silylated by 3-aminopropyltriethoxysilane (APTES) before wet impregnation. Samples were characterized by BET, infrared spectroscopy, and fluorescence measurements. The results showed that the lanthanide complexes were dispersed in the channels of silylated meso-structured monoliths. Compared with the pure complex, the molar percentage luminescent intensity and the luminescence lifetime of the assembly increased, respectively. (C) 2009 Elsevier Inc. All rights reserved.