News Column

Findings from Harbin Institute of Technology Broaden Understanding of Nanocomposites

May 14, 2014

By a News Reporter-Staff News Editor at Biotech Week -- Research findings on Nanocomposites are discussed in a new report. According to news reporting originating in Harbin, People's Republic of China, by NewsRx journalists, research stated, "Different mole ratios of TiO2/BiVO4 nanocomposites with effective contacts have are fabricated by putting BiVO4 nanoparticles into the TiO2 sol, followed by thermal treatment at 450 degrees C. Based on the transient-state surface photovoltage responses and the atmosphere-controlled steady-state surface photovoltage spectra, it is concluded that the photogenerated charge carriers in the TiO2/BiVO4 nanocomposite with a proper mole ratio (5%) display much longer lifetime and higher separation than those in the BiVO4 alone."

The news reporters obtained a quote from the research from the Harbin Institute of Technology, "This is responsible for the unexpected activity for photoelectrochemical oxidation of water, for photocatalytic production of H-2, and for photocatalytic degradation of phenol as a model pollutant under visible irradiation. Moreover, it is suggested that the prolonged lifetime and increased separation of photogenerated charges in the fabricated TiO2/BiVO4 nanocomposite is attributed to the unusual spatial transfer of visible-excited high-energy electrons of BiVO4 to TiO2."

According to the news reporters, the research concluded: "This work will provide feasible routes to synthesize visible-light responsive nanomaterials for efficient solar utilization."

For more information on this research see: Long-Lived, Visible-Light-Excited Charge Carriers of TiO2/BiVO4 Nanocomposites and their Unexpected Photoactivity for Water Splitting. Advanced Energy Materials, 2014;4(5):138-143. Advanced Energy Materials can be contacted at: Wiley-V C H Verlag Gmbh, Boschstrasse 12, D-69469 Weinheim, Germany. (Wiley-Blackwell -; Advanced Energy Materials -

Our news correspondents report that additional information may be obtained by contacting M.Z. Xie, Harbin Inst Technol, State Key Lab Urban Water Resource & Environm, Harbin 150001, People's Republic of China. Additional authors for this research include X.D. Fu, L.Q. Jing, P. Luan, Y.J. Feng and H.G. Fu (see also Nanocomposites).

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

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Source: Biotech Week

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