| 含二茂铁基偶氮染料的光稳定性研究 |
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| 引用本文： | 杨松杰,王朝晖,陈孔常,田禾. 含二茂铁基偶氮染料的光稳定性研究[J]. 影像科学与光化学, 2002, 20(1): 33-38. DOI: 10.7517/j.issn.1674-0475.2002.01.33 |
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| 作者姓名： | 杨松杰 王朝晖 陈孔常 田禾 |
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| 作者单位： | 华东理工大学, 精细化工研究所, 上海, 200237 |
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| 摘 要： | 利用UV-Vis吸收光谱仪和光化学反应器研究了含二茂铁基偶氮染料及相应的偶氮染料溶液的光降解动力学.在溶液中,它们的光降解反应遵循零级动力学模型.与相应的偶氮染料相比,含二茂铁基的偶氮染料溶液具有较好的光稳定性.这表明,在其分子内存在着有效的从偶氮染料母体到二茂铁基团的分子内三重态-三重态能量传递,上述过程降低了偶氮染料激发三重态的生成,避免了染料的过早降解,提高了其稳定性.
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| 关 键 词： | 二茂铁 光稳定性 偶氮染料 能量传递 |
| 收稿时间： | 2001-04-09 |
PHOTODEGRADATION MECHANISM OF NOVEL FERROCENYL AZO DYE |
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| YANG Song-jie,WANG Zhao-hui,CHEN Kong-chang,TIAN He. PHOTODEGRADATION MECHANISM OF NOVEL FERROCENYL AZO DYE[J]. Imaging Science and Photochemistry, 2002, 20(1): 33-38. DOI: 10.7517/j.issn.1674-0475.2002.01.33 |
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| Authors: | YANG Song-jie WANG Zhao-hui CHEN Kong-chang TIAN He |
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| Affiliation: | Institute of Fine Chemicals, East China University of Science & Technology, Shanghai 200237, P. R. China |
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| Abstract: | The photodegradation kinetics of novel ferrocenyl azo dye and corresponding azo dye solution has been studied by UV Vis absorption spectroscopy.The results show that the fading process follows zero order kinetics in methanol.The ferrocenyl azo dye has relative good photostability compared with the azo dye.The results suggest that the intramolecular triplet triplet energy transfer from azo chromophore to ferrocenyl chromophore is very efficient,which leads to increase in the photostability of the dye. |
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| Keywords: | ferrocene photodegradation azo dyes energy transfer |
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