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Preparation of Fe-DopedTiO2Nanotubes and Their Photocatalytic Activities under Visible Light
Author(s) -
Honghui Teng,
Shukun Xu,
Dandan Sun,
Ying Zhang
Publication year - 2013
Publication title -
international journal of photoenergy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.426
H-Index - 51
eISSN - 1687-529X
pISSN - 1110-662X
DOI - 10.1155/2013/981753
Subject(s) - photocatalysis , visible spectrum , materials science , hydrothermal circulation , absorption (acoustics) , doping , absorption spectroscopy , analytical chemistry (journal) , transmission electron microscopy , spectroscopy , scanning electron microscope , nuclear chemistry , nanotechnology , chemistry , optics , chemical engineering , physics , optoelectronics , chromatography , catalysis , composite material , organic chemistry , quantum mechanics , engineering
Fe-doped TiO2 nanotubes (Fe-TNTs) have been prepared by ultrasonic-assisted hydrothermal method. The structure and composition of the as-prepared TiO2 nanotubes were characterized by transmission electron microscopy, X-ray diffraction, and UV-Visible absorption spectroscopy. Their photocatalytic activities were evaluated by the degradation of MO under visible light. The UV-visible absorption spectra of the Fe-TNT showed a red shift and an enhancement of the absorption in the visible region compared to the pure TNT. The Fe-TNTs were provided with good photocatalytic activities and photostability and under visible light irradiation, and the optimum molar ratio of Ti : Fe was found to be 100 : 1 in our experiments.

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