A comparative study on photo-induced electron transfer from fluorescein to anthraquinone and injection into colloidal TiO2.
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).
Zhang
Haiping
H
Molecular Science Center, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100080, People's Republic of China.
Zhou
Yalin
Y
Zhang
Manhua
M
Shen
Tao
T
Li
Yuliang
Y
Zhu
Daoben
D