Visible light-driven binary dyes synergic degradation by iodine-doped TiO2 nanocrystal film
Visible light-driven binary dyes synergic degradation by iodine-doped TiO2 nanocrystal film
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DOI：
10.1016/j.catcom.2012.01.006
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发表时间：
2012-04
影响因子：
3.7
通讯作者：
Xin Li;Yuping Huang;Jianfeng Chen;Xia Tao
中科院分区：
文献类型：
--
作者：
Xin Li;Yuping Huang;Jianfeng Chen;Xia Tao
We report synergistic degradation of fluorescein sodium/rhodamine B or eosin Y/rhodamine B using iodine-doped TiO2nanocrystal film (I-TNC) under visible irradiation. The fabricated I-TNC was characterized by SEM, EDS and reflectance spectra. The degradation results showed that when Flu or EO was introduced to I-TNC/RhB system, the degradation ratio of RhB was significantly enhanced, with an eight-fold or five-fold improvement compared with that in I-TNC/RhB system free of sensitizer. The photocatalytic improvement may be explained by the mutually sensitization of binary dyes and narrowed bandgap caused by doping. Active oxygen species were evidenced to be involved in the synergic degradation.
