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Reports Outline Photocatalytics Findings from University of Illinois (PdO loaded TiO2 hollow sphere composite photocatalyst with a high...

July 22, 2014



Reports Outline Photocatalytics Findings from University of Illinois (PdO loaded TiO2 hollow sphere composite photocatalyst with a high photocatalytic disinfection efficiency on bacteria)

By a News Reporter-Staff News Editor at Life Science Weekly -- A new study on Photocatalytics is now available. According to news reporting from Urbana, Illinois, by NewsRx journalists, research stated, "PdO loaded TiO2 hollow spheres were synthesized via first reducing Pd2+ to Pd in ethanol onto TiO2 hollow spheres by refluxing and then oxidizing Pd to PdO through calcination in air. PdO nanoparticles were distributed relatively uniformly both on the surface and in the shell/interior of these TiO2 hollow spheres, to act as potential electron/hole pair separation centers."

The news correspondents obtained a quote from the research from the University of Illinois, "These PdO loaded TiO2 hollow spheres demonstrated a superior photocatalytic disinfection performance on Eschetichia coil bacteria, compared with the unloaded samples or P25 TiO2 nanoparticles. Their largely enhanced photocatalytic disinfection performance could be attributed to both their unique hollow structure and the electron trapping capability of loaded PdO nanoparticles. Samples with a series of PdO loading ratios were synthesized and tested to determine the optimum PdO loading ratio, which was found to be similar to 0.4 wt.%. Below the optimum PdO loading, the photocatalytic disinfection performance increased with the increase of PdO loading ratio, while further increase of the PdO loading over 0.4% resulted in a deleterious influence on the PdO enhancement effect. The photocatalytic performance differences between Pd and PdO modified samples were also investigated."

According to the news reporters, the research concluded: "Samples with 0.4% PdO modification demonstrated a better photocatalytic disinfection effect on E. coli bacteria than samples with 0.4% Pd modification, which could be attributed to their different work functions."

For more information on this research see: PdO loaded TiO2 hollow sphere composite photocatalyst with a high photocatalytic disinfection efficiency on bacteria. Chemical Engineering Journal, 2014;249():63-71. 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 journalists report that additional information may be obtained by contacting Y. Liu, University of Illinois, Dept. of Mat Sci & Engn, Urbana, IL 61801, United States. Additional authors for this research include J.T. Zhang, W.Z. Sun, S.A. Gao and J.K. Shang (see also Photocatalytics).

Keywords for this news article include: Urbana, Illinois, Nanoparticle, United States, Photocatalyst, Nanotechnology, Emerging Technologies, North and Central America

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


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Source: Life Science Weekly


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