News Column

Studies from Y. An and Co-Researchers Yield New Data on Nanotechnology

May 27, 2014



By a News Reporter-Staff News Editor at Life Science Weekly -- New research on Nanotechnology is the subject of a report. According to news reporting out of Tianjin, People's Republic of China, by NewsRx editors, research stated, "Hydrogenotrophic bacteria (HTB) were introduced into a nitrate removal system, which used nanoscale zero-valent iron (nZVI) as reductant, to investigate its bioinhibitory effect. Based on the results, it was noted that addition of HTB culture (10-50 mL) led to 58.9-91.4% decrease in the first observed rate constant (k(obs1)), which represented the nitrate removal rate by nZVI, and a reduction in the generated poisonous by-products from 94.9% to 38.5%."

Our news journalists obtained a quote from the research, "In other words, HTB had a significant inhibitory effect on nitrate reduction by nZVI. However, the pathway of this bioinhibition only prevented the occurrence of chemical reduction, but not competition for nitrate. Furthermore, FeOOH coating was observed on the surface of nZVI, instead of Fe3O4 or Fe2O3, which could prevent electron transmission from nZVI to nitrate."

According to the news editors, the research concluded: "Considering that Fe0OH was the product of iron corrosion, the result indicated that HTB could inhibit chemical reduction by enhancing the reaction between nZVI and water."

For more information on this research see: Bioinhibitory effect of hydrogenotrophic bacteria on nitrate reduction by nanoscale zero-valent iron. Chemosphere, 2014;103():86-91. Chemosphere can be contacted at: Pergamon-Elsevier Science Ltd, The Boulevard, Langford Lane, Kidlington, Oxford OX5 1GB, England. (Elsevier - www.elsevier.com; Chemosphere - www.elsevier.com/wps/product/cws_home/362)

Our news journalists report that additional information may be obtained by contacting Y. An, Tianjin Key Lab Agroenvironm & Agroprod Safety, Tianjin 300191, People's Republic of China. Additional authors for this research include Q. Dong and K.Q. Zhang (see also Nanotechnology).

Keywords for this news article include: Asia, Tianjin, Nanoscale, 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: Life Science Weekly


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