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Investigators at Nanjing University of Technology Describe Findings in Nanosheets

January 31, 2014

By a News Reporter-Staff News Editor at Science Letter -- A new study on Nanosheets is now available. According to news reporting from Jiangsu, People's Republic of China, by NewsRx journalists, research stated, "A systematic study has been devoted to prepare N-F co-doped anatase TiO2 nanosheets with further hydrogenation treatment at different temperatures. The hydrogenation temperature plays a significant role in changing the inner structure of TiO2 from N-F co-doping to the truly hydrogenated characteristic, resulting in various bandgap structures with different light absorption ability and photogenerated electron-hole pair separation efficiency."

The news correspondents obtained a quote from the research from the Nanjing University of Technology, "Moreover, the visible-light-driven photocatalytic activity not only depend on the light absorption ability, but also affected by the amount of defect states significantly. Results indicate that isolated defect state will serve as photogenerated electron-hole pair recombination center, while a large amount of combined defect states will truly reduce the bandgap, enhance the light absorption and the photogenerated electron-hole pair separation efficiency. The photocatalyst hydrogenated at 500 degrees C, which has a specific bandgap structure, gives the highest ability in the degradation of phenol under the visible light irradiation."

According to the news reporters, the research concluded: "This simple investigation is of great significance for the design and preparation of anion modified TiO2-based photocatalysts with specific crystal structures to make sufficient use of the visible light for environment protection."

For more information on this research see: Hydrogenation temperature related inner structures and visible-light-driven photocatalysis of N-F co-doped TiO2 nanosheets. Applied Surface Science, 2014;290():125-130. Applied Surface Science can be contacted at: Elsevier Science Bv, PO Box 211, 1000 Ae Amsterdam, Netherlands. (Elsevier -; Applied Surface Science -

Our news journalists report that additional information may be obtained by contacting W. Wang, Nanjing Univ Technol, Coll Mat Sci & Engn, State Key Lab Mat Orient Chem Engn, Nanjing 210009, Jiangsu, People's Republic of China. Additional authors for this research include Y.R. Ni, C.H. Lu and Z.Z. Xu (see also Nanosheets).

Keywords for this news article include: Asia, Jiangsu, Physics, Nanosheets, Electron Holes, Nanotechnology, Emerging Technologies, People's Republic of China

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Source: Science Letter

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