By a News Reporter-Staff News Editor at Physics Week -- Current study results on Aldehydes have been published. According to news reporting originating in Seoul, South Korea, by VerticalNews journalists, research stated, "In this paper, the comparison study of photocatalytic oxidation properties of TiO2 and ZnO-quantum dots (QDs) in gaseous phase was designed and performed to degrade acetaldehyde (CH3CHO) first time. The obtained results showed that the 1st order rate constant for the prepared QDs of ZnO (1.9 x 10(-2)/min) is one magnitude higher than that of Degussa P-25 (83 x 10(-3)/min)."
The news reporters obtained a quote from the research from Kwangwoon University, "The efficiencies were found to be 70% and 92% for Degussa P-25 and ZnO-QDs respectively in 120 min of reaction time. The QDs were prepared from zinc nitrate hexahydrate (Zn(NO3)center dot 6H(2)O), n-propylamine and SDS surfactant in 6 h refluxing. The crystallinity of the product was analyzed with X-ray diffraction (XRD) and it reveals that prepared QDs size is very small and it exhibit wurzite phase. The general morphology of prepared QDs were observed with using FESEM and TEM, which showed that the average size are in the range of similar to 6-7 nm."
According to the news reporters, the research concluded: "The elemental and compositional analysis was also carried out with FTIR spectroscopy."
For more information on this research see: Photocatalytic oxidation of acetaldehyde with ZnO-quantum dots. Chemical Engineering Journal, 2013;226():154-160. Chemical Engineering Journal can be contacted at: Elsevier Science Sa, PO Box 564, 1001 Lausanne, Switzerland. (Elsevier - www.elsevier.com; Chemical Engineering Journal - www.elsevier.com/wps/product/cws_home/601273)
Our news correspondents report that additional information may be obtained by contacting R. Wahab, Kwangwoon Univ, Plasma Biosci Res Center, Seoul 139701, South Korea. Additional authors for this research include S.K. Tripathy, H.S. Shin, M. Mohapatra, J. Musarrat, A.A. Al-Khedhairy and N.K. Kaushik.
Keywords for this news article include: Asia, Seoul, South Korea, Acetaldehyde, Quantum Dots, Photocatalyst, Nanotechnology, Photocatalytic, Quantum Physics, Emerging Technologies
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