By a News Reporter-Staff News Editor at Ecology, Environment & Conservation -- Data detailed on Environmental Science and Technology have been presented. According to news reporting originating from Brisbane, Australia, by VerticalNews correspondents, research stated, "We have demonstrated a template-free large-scale synthesis of nanostructured CdxZn1-xS by a simple and a low-temperature solid-state method. Cadmium oxide, zinc oxide, and thiourea in various concentration ratios are homogenized at moderate temperature to obtain nanostructured CdxZn1-xS."
Our news editors obtained a quote from the research from the University of Queensland, "We have also demonstrated that phase purity of the sample can be controlled with a simple adjustment of the amount of Zn content and nanocrystalline CdxZn1-xS (x = 0.5 and 0.9) of the hexagonal phase with 6-8 nm sized and 4-5 nm sized Cd0.1Zn0.9S of cubic phase can be easily obtained using this simple approach. UV-vis and PL spectrum indicate that the optical properties of as synthesized nanostructures can also be modulated by tuning their compositions. Considering the band gap of the nanostructured CdxZn1-xS well within the visible region, the photocatalytic activity for H-2 generation using H2S and methylene blue dye degradation is performed under visible-light irradiation. The maximum H-2 evolution of 8320 mu mol h(-1)g(-1) is obtained using nanostructured Cd0.1Zn0.9S, which is four times higher than that of bulk CdS (2020 mu mol h(-1) g(-1)) and the reported nanostructured CdS (5890 mu mol h(-1)g(-1)). As synthesized Cd0.9Zn0.1S shows 2-fold enhancement in degradation of methylene blue as compared to the bulk CdS. It is noteworthy that the synthesis method adapted provides an easy, inexpensive, and pollution-free way to synthesize very tiny nanoparticles of CdxZn1-xS with a tunnable band structure on a large scale, which is quite difficult to obtain by other methods."
According to the news editors, the research concluded: "More significantly, environmental benign enhanced H-2 production from hazardous H2S using CdxZn1-xS is demonstrated for the first time."
For more information on this research see: Template-Free Synthesis of Nanostructured CdxZn1-xS with Tunable Band Structure for H-2 Production and Organic Dye Degradation Using Solar Light. Environmental Science & Technology, 2013;47(12):6664-6672. Environmental Science & Technology can be contacted at: Amer Chemical Soc, 1155 16TH St, NW, Washington, DC 20036, USA. (American Chemical Society - www.acs.org; Environmental Science & Technology - www.pubs.acs.org/journal/esthag)
The news editors report that additional information may be obtained by contacting S.N. Garaje, University of Queensland, Australian Inst Bioengn & Nanotechnol, Corner College, Brisbane, Qld 4072, Australia. Additional authors for this research include S.K. Apte, S.D. Naik, J.D. Ambekar, R.S. Sonawane, M.V. Kulkarni, A. Vinu and B.B. Kale.
Keywords for this news article include: Brisbane, Australia and New Zealand, Environmental Science and Technology
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