News Column

Reports from Food and Drug Administration Describe Recent Advances in Chalcogens

June 17, 2014



By a News Reporter-Staff News Editor at Life Science Weekly -- Current study results on Chalcogens have been published. According to news reporting out of College Park, Maryland, by NewsRx editors, research stated, "ZnO micro/nano structures with different morphologies have been prepared by the changing solvents used during their synthesis by solvothermal reaction. Three typical shapes of ZnO structures including hexagonal, bell bottom like and multi-pod formed and were characterized by scanning electron microscopy and X-ray diffraction."

Our news journalists obtained a quote from the research from Food and Drug Administration, "Multi pod like ZnO structures exhibited the highest photocatalytic activity toward degradation of methyl orange. Using electron spin resonance spectroscopy coupled with spin trapping techniques, we demonstrate an effective way to identify precisely the generation of hydroxyl radicals, superoxide and singlet oxygen from the irradiated ZnO multi pod structures. The type of reactive oxygen species formed was predictable from the band gap structure of ZnO."

According to the news editors, the research concluded: "These results indicate that the shape of micro-nano structures significantly affects the photocatalytic activity of ZnO, and demonstrate the value of electron spin resonance spectroscopy for characterizing the type of reactive oxygen species formed during photoexcitation of semiconductors."

For more information on this research see: Determination of reactive oxygen species from ZnO micro-nano structures with shape-dependent photocatalytic activity. Materials Research Bulletin, 2014;53():246-250. Materials Research Bulletin can be contacted at: Pergamon-Elsevier Science Ltd, The Boulevard, Langford Lane, Kidlington, Oxford OX5 1GB, England. (Elsevier - www.elsevier.com; Materials Research Bulletin - www.elsevier.com/wps/product/cws_home/313)

Our news journalists report that additional information may be obtained by contacting W.W. He, Food & Drug Administration, Center Food Safety & Appl Nutr, College Park, MD 20740, United States. Additional authors for this research include H.X. Zhao, H.M. Jia, J.J. Yin and Z. Zheng (see also Chalcogens).

Keywords for this news article include: Maryland, Chalcogens, College Park, United States, Free Radicals, Photocatalyst, Nanotechnology, Photocatalytic, Nano Structures, Oxygen Compounds, Emerging Technologies, Reactive Oxygen Species, North and Central America

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


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Source: Life Science Weekly


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