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New Findings on Clinical Trials and Studies from D.D. Sun and Co-Authors Summarized (Effects of TiO2 nanostructure and operating parameters on...

July 21, 2014



New Findings on Clinical Trials and Studies from D.D. Sun and Co-Authors Summarized (Effects of TiO2 nanostructure and operating parameters on optimized water disinfection processes: A comparative study)

By a News Reporter-Staff News Editor at Clinical Trials Week -- Current study results on Clinical Research have been published. According to news reporting originating from Singapore, Singapore, by NewsRx correspondents, research stated, "This paper reports the performance of bacterial disinfection using 3D dendritic titanium dioxide with nanoribbon structures (3DD-TiO2), which is newly developed by the researchers. Characterization of 3DD-TiO2 using SEM and TEM shows that the diameter of nanoribbons is nearly 18 nm only, resulting in an aspect ratio of more than 50."

Our news editors obtained a quote from the research, "The hierarchical porous structure of the 3DD-TiO2 would greatly favor the improvement of photocatalytic activity via enlarging the specific surface area. In comparison with the same-sized microspheres and commercial Degussa P25, which are both spherically structured, 3DD-TiO2 displays a consistently better performance under the tested environment. Without UV illumination, the removal efficiency of Escherichia coli by 3DD-TiO2 is 6.4% and 8.7% higher than that of microspheres and P25, respectively. Under UV radiation, the disinfection kinetic constant k of the disinfection reaction using 3DD-TiO2 is 23.2% and 33.9% higher than that of using microspheres and P25, respectively. A series of optimization studies have been carried out to identify the optimum operating parameters of a photocatalytic process using 3DD-TiO2. The results tend to suggest: (a) optimum catalyst concentration is around 100 mg/L; (b) the optimum temperature for bacteria inactivation ranges between 10 degrees C and 20 degrees C; presence of humic acid and anions (SO42-) exhibits an inhibitory effect on water disinfection process; and (d) cations (Ca2+) enhance the disinfection rate."

According to the news editors, the research concluded: "These optimum operating parameters could be directly referenced for full-scale applications in future."

For more information on this research see: Effects of TiO2 nanostructure and operating parameters on optimized water disinfection processes: A comparative study. Chemical Engineering Journal, 2014;249():160-166. 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)

The news editors report that additional information may be obtained by contacting D.D. Sun, Raffles Inst, Singapore 575954, Singapore. Additional authors for this research include Y. Wu and P. Gao (see also Clinical Research).

Keywords for this news article include: Asia, Photocatalyst, Nanotechnology, Photocatalytic, Clinical Research, Emerging Technologies, Clinical Trials and Studies

Our reports deliver fact-based news of research and discoveries from around the world. Copyright 2014, NewsRx LLC


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Source: Clinical Trials Week


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