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Citation: PENG Shuge, IZUMI Yasuo, LIU Xiaofei, ZHANG Jun. Characterization and Visible Light-Responsive Photocatalytic Performance of Sulfur-Doped Titanate Nanotubes[J]. Chinese Journal of Applied Chemistry, ;2012, 29(3): 285-290. doi: 10.3724/SP.J.1095.2012.00217 shu

Characterization and Visible Light-Responsive Photocatalytic Performance of Sulfur-Doped Titanate Nanotubes

1.
a College of Chemical Engineering and Pharmacy, Henan University of Science and Technology, Luoyang 471003, China;
2.
b Department of Chemistry, Chiba University, Chiba 263-8522, Japan

Corresponding author: PENG Shuge,
Received Date: 19 May 2011
Available Online: 18 July 2011
Fund Project: 国家自然科学基金(21076063) (21076063)河南科技大学人才基金(05-160)资助项目 (05-160)

The sulfur-doped titanate and sodium titanate nanotubes(STNTs) were prepared by hydrothermal reaction of sodium hydroxide(NaOH) with titanium disulphide(TiS2),which was used as sulfur source and titanium source for the first time.The structure,morphology,sulfur-doped valence state and doped amount of the as-obtained STNTs were characterized by X-ray diffraction(XRD),high resolution transmission electron microscopy(HRTEM),scanning electron microscope(SEM),extended X-ray absorption fine structure(EXAFS),and energy dispersive X-ray(EDS).The photo-oxidation reaction of ethanol under visible light was used to probe the reaction,and the visible light-responsive photocatalytic activity of sulfur-doped titanate nanotube was investigated by means of in-situ gas chromatography(GC).The results indicated that S atoms were introduced into the lattice of titanate nanotubes as S^2-anions.The average size of wall thickness and diameter of STNTs were 2.9 nm and 9.7 nm,respectively.The visible light-responsive photocatalytic oxidation results indicated that the SNTTs with very low amount of doped sulfur showed higher photocatalytic activity than undoped TiO₂ nanotubes.
- sulfur-doped,
- titanate nanotubes,
- extended X-ray absorption fine structure,
- photocatalytic oxidation,
- ethanol
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