A comparative study on photo-induced electron transfer from fluorescein to anthraquinone and injection into colloidal TiO2 |
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| Authors: | Zhang Haiping Zhou Yalin Zhang Manhua Shen Tao Li Yuliang Zhu Daoben |
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| Institution: | Molecular Science Center, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100080, People's Republic of China. |
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| Abstract: | A dyad-anthraquinone-methyl ester of fluorescein-and its model compound-butyl ester-were synthesized. The effects of photo-induced electron transfer from fluorescein to an organic anthraquinone acceptor and injection into inorganic colloidal TiO(2) were studied respectively. It is found that the photo-induced electron transferring to an organic acceptor is much faster than injecting into inorganic colloidal particles when fluorescein was excited by visible light. While inorganic colloidal TiO(2) was excited by UV, the electron of fluorescein will inject into TiO(2). |
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