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Doping a metal (Ag, Al, Mn, Ni and Zn) on TiO2 nanotubes and its effect on Rhodamine B photocatalytic oxidation
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  • Journal title : Environmental Engineering Research
  • Volume 20, Issue 4,  2015, pp.329-335
  • Publisher : Korean Society of Environmental Engineering
  • DOI : 10.4491/eer.2015.062
 Title & Authors
Doping a metal (Ag, Al, Mn, Ni and Zn) on TiO2 nanotubes and its effect on Rhodamine B photocatalytic oxidation
Gao, Xinghua; Zhou, Beihai; Yuan, Rongfang;
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 Abstract
The effects of ion-doping on nanotubes were investigated to obtain the optimal catalyst for the effective decomposition of Rhodamine B (RB) through UV photocatalytic oxidation process. Changing the calcination temperature, which changed the weight fractions of the anatase phase, the average crystallite sizes, the BET surface area, and the energy band gap of the catalyst, affected the photocatalytic activity of the catalyst. The ionic radius, valence state, and configuration of the dopant also affected the photocatalytic activity. The photocatalytic activities of the catalysts on RB removal increased when , and were doped into the nanotubes, whereas such activities decreased as a result of or doping. In the presence of -doped nanotubes calcined at , the removal efficiency of RB within 50 min was 98.7%.
 Keywords
Ion-doping;Photocatalytic oxidation;Rhodamine B; nanotubes;
 Language
English
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