Formation of TiO2 nano-fiber doped with Gd3+ and its photocatalytic activity |
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| Affiliation: | 1. College of Materials Science and Engineering, Hunan Univerisity, Changsha 410082, PR China;2. Department of Chemistry and Environment Engineering, Changsha University of Science and Technology, Changsha 410076, PR China;1. Department of Materials Science and Engineering, Kyoto University, Sakyo, Kyoto 606-8501, Japan;2. Research Center for Low Temperature and Materials Science, Kyoto University, Sakyo, Kyoto 606-8501, Japan;1. Department of Chemistry, Sookmyung Women’s University, Seoul 140-742, Republic of Korea;2. Department of Physics, Ajou University, Suwon 443-749, Republic of Korea;3. Department of Energy Systems Research, Ajou University, Suwon 443-749, Republic of Korea;1. Laser Centre, Ibnu Sina Institute for Scientific and Industrial Research, Universiti Teknologi Malaysia, Skudai, Johor 81310 Malaysia;2. Centre of Excellence in Solid State Physics, University of the Punjab, QAC, Lahore, 54590, Pakistan;1. Department of Materials Science and Engineering, National Tsing Hua University, Hsinchu 30034, Taiwan;2. Department of Applied Chemistry, National Chiao Tung University, Hsinchu 30050, Taiwan;3. Department of Physics, Tamkang University, New Taipei 25137, Taiwan;1. Faculty of Microsystem Electronics and Photonics, Wroclaw University of Technology, Janiszewskiego 11/17, 50-372 Wroclaw, Poland;2. Institute of Physics, Faculty of Fundamental Problems of Technology, Wroclaw University of Technology, Wybrzeze Wyspianskiego 27, 50-370 Wroclaw, Poland;3. Institute of Metallurgy and Materials Science, Polish Academy of Sciences, 25 Reymonta St., 30-059 Krakow, Poland |
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| Abstract: | Titanium dioxide (TiO2) nano-fibers doped with Gd3+ were synthesized by two-step synthesis method. The formed fibers were visualized from transmission electron microscopy (TEM) and X-ray diffraction (XRD). The results showed that the average diameter of the TiO2 nano-fibers was 60–80 nm and the length of fibers was in the range of 6–7 μm. The TiO2 nano-fibers doped with Gd3+ heat treated in glycerol solvent had smaller crystal size than those without heat treatment. However, the size of TiO2 nano-fibers decreased with increasing the heating temperature. The results obtained in the photocatalytic degradation of methyl orange indicated that the photocatalytic activity of the TiO2 nano-fibers doped with Gd3+ appeared a little reduction relative to that of TiO2 nanopowders. |
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