| 5,10,15,20-四(4-羟基苯基)卟啉在TX-100胶束中的光谱研究 |
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| 引用本文： | 张韫宏,乔辉,赵晓红.5,10,15,20-四(4-羟基苯基)卟啉在TX-100胶束中的光谱研究[J].北京理工大学学报,2005,25(6):556-559. |
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| 作者姓名： | 张韫宏 乔辉 赵晓红 |
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| 作者单位： | 北京理工大学,理学院,北京,100081;北京理工大学,理学院,北京,100081;中国人民武装警察部队学院,消防工程系,河北,廊坊,065000 |
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| 摘 要： | 用光谱法研究了荧光分子5,10,15,20-四(4-羟基苯基)卟啉P0与Triton X-100胶束间的相互作用,测定了P0在不同pH值的TX-100胶束溶液中的紫外-可见吸收光谱和荧光发射光谱.结果表明:在碱性滴定过程中,P0在胶束溶液中存在去质子化现象;分析P0在胶束中的增溶位置和微环境极性间的关系,发现卟啉随自身亲水性增强而经历了由胶束内层至胶束表面的转移过程;同时初步解释了卟啉在此过程中发生的荧光猝灭现象.
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| 关 键 词： | 卟啉 Triton X-100胶束 去质子化 荧光猝灭 |
| 文章编号： | 1001-0645(2005)06-0556-04 |
| 收稿时间： | 2004/8/30 0:00:00 |
| 修稿时间： | 2004年8月30日 |
UV-Visible and Fluorescence Spectra of 5, 10, 15, 20-Tetra (4-Hydroxypheny)Porphyrin in Triton X-100 Micelle |
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| ZHANG Yun-hong,QIAO Hui and ZHAO Xiao-hong.UV-Visible and Fluorescence Spectra of 5, 10, 15, 20-Tetra (4-Hydroxypheny)Porphyrin in Triton X-100 Micelle[J].Journal of Beijing Institute of Technology(Natural Science Edition),2005,25(6):556-559. |
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| Authors: | ZHANG Yun-hong QIAO Hui and ZHAO Xiao-hong |
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| Institution: | School of Science, Beijing Institute of Technology, Beijing10008, China;School of Science, Beijing Institute of Technology, Beijing10008, China; Department of Fire Engineering, Chinese People's Armed Police Academy, Langfang, Hebei065000, China;School of Science, Beijing Institute of Technology, Beijing10008, China |
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| Abstract: | The interactions between a fluorescent molecule,5, 10, 15, 20-tetra(4-hydroxyphenyl) porphyrin P_0, and Triton X-100 micelle are investigated by UV-vis absorption and fluorescence spectra. The results show that the deprotonation of P_0 has occured in micelk solutions in the basic titration process. By means of analyzing the relationship between the solubilizing location of the porphyrin in TX-100 micelle and the microenvironment polarity, it is shown that P_0 is involved in a transfer process from the inner to the outer surface of TX-100 micelle as the hydrophilic ability is increased. At the same time, the reasons of fluorescence quenching effect are explained primarily. |
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| Keywords: | porphyrin Triton X-100 micelle deprotonation fluorescence quenching effect |
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