News Column

Recent Studies from University of Shizuoka Add New Data to Phenothiazines

June 20, 2014



By a News Reporter-Staff News Editor at Science Letter -- Investigators publish new report on Phenothiazines. According to news originating from Hamamatsu, Japan, by NewsRx correspondents, research stated, "Water dispersible Zn(1-x)MnxS solid solution photocatalysts stabilized with L-aspartic acid were synthesized by coprecipitation. Their photocatalytic activity was evaluated using methylene blue as a model pollutant."

Our news journalists obtained a quote from the research from the University of Shizuoka, "X-ray diffraction and Raman spectroscopy indicated the catalysts had a cubic crystal structure. The gradual increase in zinc sulphide (ZnS) lattice constant with increasing Mn2+ dopant concentration was due to the high ionic radius of Mn2+. Raman spectra exhibited two peaks at 260 and 345 cm(-1). Ultraviolet-visible absorption spectra of the catalysts exhibited a strong excitonic peak at 270 nm, which was blue shifted compared with that of bulk ZnS (340 nm). This was attributed to quantum confinement and coupling effects. The hydrophilic L-aspartic acid on the photocatalyst surface had a positive effect on photocatalytic activity."

According to the news editors, the research concluded: "The effects of dye and dopant concentrations on photocatalytic activity were investigated."

For more information on this research see: Investigation of photocatalytic behavior of L-aspartic acid stabilized Zn(1-x)MnxS solid solutions on methylene blue. Applied Catalysis A-General, 2014;476():1-8. Applied Catalysis A-General can be contacted at: Elsevier Science Bv, PO Box 211, 1000 Ae Amsterdam, Netherlands (see also Phenothiazines).

The news correspondents report that additional information may be obtained from A. Silambarasan, Shizuoka Univ, Elect Res Inst, Naka Ku, Hamamatsu, Shizuoka 4328011, Japan. Additional authors for this research include H.P. Kavitha, S. Ponnusamy, M. Navaneethan and Y. Hayakawa.

Keywords for this news article include: Asia, Japan, Hamamatsu, Photocatalyst, Methylene Blue, Nanotechnology, Phenothiazines, Photocatalytic, Emerging Technologies

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


For more stories covering the world of technology, please see HispanicBusiness' Tech Channel



Source: Science Letter


Story Tools






HispanicBusiness.com Facebook Linkedin Twitter RSS Feed Email Alerts & Newsletters