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Findings from City University of Hong Kong Has Provided New Information about Photoelectrochemicals (Carbon dot loading and TiO? nanorod length...

July 2, 2014



Findings from City University of Hong Kong Has Provided New Information about Photoelectrochemicals (Carbon dot loading and TiO? nanorod length dependence of photoelectrochemical properties in carbon dot/TiO? nanorod array nanocomposites)

By a News Reporter-Staff News Editor at Biotech Week -- Research findings on Biotechnology are discussed in a new report. According to news reporting from Hong Kong, People's Republic of China, by NewsRx journalists, research stated, "Photoelectrochemcial (PEC) properties of TiO2 nanorod arrays (TNRA) have been extensively investigated as they are photostable and cost-effective. However, due to the wide band gap, only the UV part of solar light can be employed by TiO2."

The news correspondents obtained a quote from the research from the City University of Hong Kong, "To enhance the photoresponse of TNRA in the visible range, carbon dots (C dots) were applied as green sensitizer in this work by investigating the effects of C dot loading and length of TiO2 nanorod on the PEC properties of TNRA/C dot nanocomposites. As the C dot loading increases, the photocurrent density of the nanocomposites was enhanced and reached a maximum when the concentration of the C dots was 0.4 mg/mL. A further increase in the C dot concentration decreased the photocurrent, which might be caused by the surface aggregation of C dots. A compromise existed between charge transport and charge collection as the length of TiO2 nanorod increased. The incident photon to current conversion efficiency (IPCE) of the TNRA/C dot nanocomposites in the visible range was up to 1.2-3.4%."

According to the news reporters, the research concluded: "This work can serve as guidance for fabrication of highly efficient photoanode for PEC cells based on C dots."

For more information on this research see: Carbon dot loading and TiO? nanorod length dependence of photoelectrochemical properties in carbon dot/TiO? nanorod array nanocomposites. Acs Applied Materials & Interfaces, 2014;6(7):4883-90. (American Chemical Society - www.acs.org; Acs Applied Materials & Interfaces - www.pubs.acs.org/journal/aamick)

Our news journalists report that additional information may be obtained by contacting J. Bian, Dept. of Physics and Materials Science and Centre for Functional Photonics (CFP), City University of Hong Kong , Kowloon, Hong Kong SAR, People's Republic of China. Additional authors for this research include C. Huang, L. Wang, T. Hung, W.A. Daoud and R. Zhang (see also Biotechnology).

Keywords for this news article include: Asia, Biotechnology, Hong Kong, Nanocomposite, Nanotechnology, Photoelectrochemical, 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: Biotech Week


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