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Study Results from Henan University Update Understanding of Photocatalytics

February 11, 2014

By a News Reporter-Staff News Editor at Life Science Weekly -- Fresh data on Photocatalytics are presented in a new report. According to news reporting originating from Kaifeng, People's Republic of China, by NewsRx correspondents, research stated, "Anatase TiO2 containing a large amount of single-electron-trapped oxygen vacancy (denoted as TiO2(V-o(center dot)); V-o(center dot) refers to single-electron-trapped oxygen vacancies which are abridged as SETOVs) was combined with Ag2CO3 to prepare Ag2CO3/TiO2(V-o(center dot)) by the precipitation method. Ag Auger MNN spectra displayed that photo-corrosion of Ag2CO3 happened during photocatalytic process generating nascent metallic Ag."

Our news editors obtained a quote from the research from Henan University, "The photo-corrosion is originally not conducive to the photocatalysts. However, the nascent metallic Ag generated on the surface of TiO2(V-o(center dot)) and SETOVs in TiO2(V-o(center dot)) matrix jointly function to compensate for the gradually reduced visible light photocatalytic activity of Ag2CO3/TiO2(V-o(center dot)) owing to photo-corrosion of Ag2CO3."

According to the news editors, the research concluded: "It is just the synergistic effect between the oxygen vacancies and nascent metallic Ag that accounts for the high and stable photocatalytic activity of Ag2CO3/TiO2(V-o(center dot)) towards the oxidation of propylene under visible light irradiation."

For more information on this research see: Photocatalytic behavior and photo-corrosion of visible-light-active silver carbonate/titanium dioxide. Materials Letters, 2014;115():85-88. Materials Letters can be contacted at: Elsevier Science Bv, PO Box 211, 1000 Ae Amsterdam, Netherlands. (Elsevier -; Materials Letters -

The news editors report that additional information may be obtained by contacting Y. Wang, Henan Univ, Basic Expt Teaching Center, Kaifeng 475004, People's Republic of China. Additional authors for this research include P.H. Ren, C.X. Feng, X. Zheng, Z.G. Wang and D.L. Li (see also Photocatalytics).

Keywords for this news article include: Asia, Anions, Kaifeng, Alkalies, Chemicals, Chemistry, Carbonates, Chalcogens, Light Metals, Carbonic Acid, Photocatalyst, Nanotechnology, Titanium Dioxide, Emerging Technologies, People's Republic of China

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Source: Life Science Weekly

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