News Column

Findings from Tsinghua University in Chalcogens Reported

February 25, 2014



By a News Reporter-Staff News Editor at Life Science Weekly -- New research on Chalcogens is the subject of a report. According to news reporting originating from Beijing, People's Republic of China, by NewsRx correspondents, research stated, "The BiPO4-x nanorod with surface oxygen vacancy was fabricated via vacuum deoxidation. The concentration and kind of oxygen vacancy could be controlled by tuning the deoxidation temperature and time in vacuum."

Our news editors obtained a quote from the research from Tsinghua University, "The photocatalytic activity depended on the concentration and kind of surface oxygen vacancy, and the optimum photocatalytic activity and photocurrent of the BiPO4-x nanorod was about 1.5 and 2.5 times as high as that of pure BiPO4, respectively. Besides, the photocatalytic response wave range of the BiPO4-x nanorod has been expanded to more than 365 nm."

According to the news editors, the research concluded: "The enhancement of photocatalytic activity is attributed to the high separation efficiency of photoinduced electron-hole pairs due to the broadening of the valence band (VB) induced by surface oxygen-vacancy states, and the extending of photoresponse is considered to be the narrowing of energy band gap resulting from the rise of the valence band maximum (VBM)."

For more information on this research see: Enhanced Photocatalytic Performance for the BiPO4-x Nanorod Induced by Surface Oxygen Vacancy. Journal of Physical Chemistry C, 2013;117(36):18520-18528. Journal of Physical Chemistry C can be contacted at: Amer Chemical Soc, 1155 16TH St, NW, Washington, DC 20036, USA. (American Chemical Society - www.acs.org; Journal of Physical Chemistry C - www.pubs.acs.org/journal/jpccck)

The news editors report that additional information may be obtained by contacting Y.H. Lv, Tsinghua Univ, Dept. of Chem, Beijing Key Lab Analyt Methods & Instrumentat, Beijing 100084, People's Republic of China. Additional authors for this research include Y.Y. Zhu and Y.F. Zhu (see also Chalcogens).

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

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Source: Life Science Weekly


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