Non-aggregated adsorption of cationic metalloporphyrin dyes onto nano-clay sheets films
Non-aggregated adsorption of cationic metalloporphyrin dyes onto nano-clay sheets films
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DOI：
10.1016/j.colsurfa.2005.11.102
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发表时间：
2006-08
期刊：
影响因子：
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通讯作者：
T. Shiragami;Y. Mori;Jin Matsumoto;S. Takagi;H. Inoue;M. Yasuda
中科院分区：
文献类型：
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作者：
T. Shiragami;Y. Mori;Jin Matsumoto;S. Takagi;H. Inoue;M. Yasuda
在铵离子改性的玻璃板（MAS-玻璃）上制备了四苯基卟啉合锑（V）染料（1）-吸附阳离子可交换蒙脱石纳米粘土片（Sumecton SA，SSA）膜。吸附SbTPP的SSA片的结晶度强烈依赖于玻璃板的表面状态。通过共聚焦激光扫描荧光显微镜分析从膜发射的荧光图像，揭示1被吸附到纳米SSA片上而没有它们的聚集。研究了1与吡喃共吸附在SSA片上的光化学行为。随着1吸附量的增加，吡喃的荧光被极大地猝灭，这表明从激发的吡喃到1的光诱导电子转移应该发生在纳米SSA片上。
Tetraphenylporphyrinatoantimony(V) dye (1)-adsorbed cation-exchangeable smectite nano-clay sheets (Sumecton SA, SSA) films were prepared on a glass plate modified with ammonium cation (MAS-glass). The dispersibility of SbTPP-adsorbed SSA sheets strongly depended on the surface state of a glass plate. The fluorescence images emitting from the films were analyzed by a confocal laser scanning fluorescence microscope, revealing that 1 is adsorbed onto nano-SSA sheets without their aggregation. The photochemical behavior between 1 and pyranine co-adsorbed onto SSA sheets was also investigated. The fluorescence of pyranine was extremely quenched with an increase of an adsorption amount of 1, suggesting that the photoinduced electron transfer from excited pyranine to 1 should occur on nano-SSA sheets.