Photoactive Ru Complex Embedded in Mesostructured MCM-41 Nanoparticles

被引：0
作者：
Emanuela Bottinelli
Ivana Miletto
Giuseppe Caputo
Salvatore Coluccia
Enrica Gianotti
机构：
[1] University of Turin,Dipartimento di Chimica IFM and NIS, Centre of Excellence
[2] NIS Laboratories at Centro dell’Innovazione,undefined
来源：
Journal of Fluorescence | 2011年 / 21卷
关键词：
MCM-41 nanoparticles; [Ru(bpy); ]; Photoactive nanoparticles; Hybrid materials; Photoluminescence;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The synthesis and characterization of photoactive hybrid materials based on [Ru(bpy)3]2+ physically adsorbed within the channels of mesoporous MCM-41 silica nanoparticles is presented. A set of photoactive mesostructured hybrids with different guest loading has been prepared and characterized by X-ray diffraction, High Resolution Transmission Electron Microscopy, volumetric analyses, Diffuse Reflectance UV-Vis and Photoluminescence spectroscopies and lifetime measurements. The hybrids synthesis and the washing procedures, performed to investigate the host-guest interaction and the stability of the complex within the mesopores, didn’t affect the integrity of the structure and morphology of MCM-41 nanoparticles. The dispersion of [Ru(bpy)3]2+ within the channels varied depending on the loading value and this is reflected in the different and peculiar photoluminescence features of the resulting hybrid materials. Photoluminescence spectroscopy evidenced that the use of MCM-41 nanoparticles ensures a better dispersion of the complex within the mesopores, if compared with traditional MCM-41. Further studies are in progress to investigate the interesting and promising features exhibited by such photoactive systems for advanced applications of electrochemiluminescence in optoelectronics and diagnostics.
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页码：901 / 909
页数：8
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