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Findings from University of Tanta in the Area of Nanofibers Reported (ZnO&Fe2O3-incoportaed TiO2 nanofibers as super effective photocatalyst for...

August 22, 2014



Findings from University of Tanta in the Area of Nanofibers Reported (ZnO&Fe2O3-incoportaed TiO2 nanofibers as super effective photocatalyst for water splitting under visible light radiation)

By a News Reporter-Staff News Editor at Science Letter -- A new study on Nanofibers is now available. According to news reporting originating in Tanta, Egypt, by NewsRx journalists, research stated, "The band gap energy, defects, recombination centers and photo corrosion resistance are the main features of the good photocatalyst to be exploited in the water splitting process under visible light radiation. Moreover, the nanomorphology has considerable impact."

The news reporters obtained a quote from the research from the University of Tanta, "In this study, the band gap energy of titanium oxide nanofibers was modified by Fe2O3- and ZnO-incorporation to be used as effective photocatalysts in water splitting process under visible light radiation. The experimental results indicated that the band gap energy can be reduced to 1.89 eV when TiO2 nanofibers are incorporated by 5 wt% ZnO and 5 wt%Fe2O3. However, the optimum performance in the water splitting process was observed with the nanofibers containing 5 wt% ZnO and 6 wt% Fe2O3 (the corresponding band gap energy was 2.25 eV); the observed hydrogen production rate was 0.12 ml/min mg(cat) which is considered unprecedented value. The introduced super effective nanofibers were prepared using the electrospinning process. Typically, electrospun nanofibers composed of titanium(IV) isopropoxide, iron(II) acetate, polyvinylpyrrolidone and zinc acetate dihydrate were calcined in air at 700 degrees C. With respect to TiO2 content, the composition of the electrospun solutions were adjusted to produce nanofibers containing ZnO and Fe2O3 contents of 5,10 and 15 wt%, and 3,6 and 10 wt%, respectively. The produced nanofibers were characterized by SEM, FE-SEM, TEM, TEM-EDX, and XRD analyzing techniques."

According to the news reporters, the research concluded: "Due to the polycondesation characteristic of the utilized metallic precursors, the nanofibrous morphology was not affected by the calcination process."

For more information on this research see: ZnO&Fe2O3-incoportaed TiO2 nanofibers as super effective photocatalyst for water splitting under visible light radiation. Applied Catalysis A-General, 2014;481():19-26. Applied Catalysis A-General can be contacted at: Elsevier Science Bv, PO Box 211, 1000 Ae Amsterdam, Netherlands (see also Nanofibers).

Our news correspondents report that additional information may be obtained by contacting N.A.M. Barakat, Tanta Univ, Fac Sci, Dept. of Chem, Tanta 31527, Egypt. Additional authors for this research include A. Taha, M. Motlak, M.M. Nassar, M.S. Mahmoud, S.S. Al-Deyab, M. El-Newehy and H.Y. Kim.

Keywords for this news article include: Tanta, Egypt, Africa, Photocatalyst, Nanotechnology, Photocatalytic, Emerging Technologies

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


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Source: Science Letter


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