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Researchers from Lanzhou University Provide Details of New Studies and Findings in the Area of Photocatalytics (Enhanced photocatalytic activity of...

August 22, 2014



Researchers from Lanzhou University Provide Details of New Studies and Findings in the Area of Photocatalytics (Enhanced photocatalytic activity of TiO2/carbon@TiO2 core-shell nanocomposite prepared by two-step hydrothermal method)

By a News Reporter-Staff News Editor at Science Letter -- Current study results on Photocatalytics have been published. According to news originating from Lanzhou, People's Republic of China, by NewsRx correspondents, research stated, "A unique TiO2/carbon@TiO2 core shell nanocomposite was fabricated by a two-step hydrothermal method. High-resolution transmission electron microscopy images show the size of the nanocomposites is about 50-100nm, which are composed of well-defined crystallized titania on the shell with the TiO2/carbon composite as the core."

Our news journalists obtained a quote from the research from Lanzhou University, "The existence of the amorphous carbon in the core can be proved by Raman spectra and thermogravimetric analysis. X-ray diffraction pattern and Raman spectra show that the crystalline of TiO2 is improved after the second hydrothermal treatment and the TiO2 are the pure anatase phase. Measurements of the photocatalytic degradation of rhodamine B show that the photocatalytic activity of TiO2/carbon@TiO2 core shell nanocomposite is higher than that of the initial TiO2/C core and pure TiO2 because TiO2 on the shell has high crystallinity and high content of surface oxygen vacancies (SOVs) after the second hydrothermal treatment."

According to the news editors, the research concluded: "Moreover, the synergistic catalytic effect of the carbon in the core can also enhance the photocatalytic activity of the nanocomposite, such as retarding the recombination of photo-generated electron hole pairs and absorbing more light."

For more information on this research see: Enhanced photocatalytic activity of TiO2/carbon@TiO2 core-shell nanocomposite prepared by two-step hydrothermal method. Applied Surface Science, 2014;311():384-390. Applied Surface Science can be contacted at: Elsevier Science Bv, PO Box 211, 1000 Ae Amsterdam, Netherlands. (Elsevier - www.elsevier.com; Applied Surface Science - www.elsevier.com/wps/product/cws_home/505669)

The news correspondents report that additional information may be obtained from G.Z. Zhang, Lanzhou University, Sch Phys Sci & Technol, Lanzhou 730000, People's Republic of China. Additional authors for this research include F. Teng, C.H. Zhao, L.L. Chen, P. Zhang, Y.Q. Wang, C.S. Gong, Z.X. Zhang and E.Q. Xie (see also Photocatalytics).

Keywords for this news article include: Asia, Lanzhou, Photocatalyst, Nanotechnology, Emerging Technologies, People's Republic of China

Our reports deliver fact-based news of research and discoveries from around the world. Copyright 2014, NewsRx LLC


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Source: Science Letter


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