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TiO2 modified 547 holes microstructured polymer optical fiber preform and basic application on photocatalytic

Li Dong-Dong Wang Li-Li

TiO2 modified 547 holes microstructured polymer optical fiber preform and basic application on photocatalytic

Li Dong-Dong, Wang Li-Li
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  • Received Date:  26 January 2011
  • Accepted Date:  20 April 2011
  • Published Online:  15 March 2012

TiO2 modified 547 holes microstructured polymer optical fiber preform and basic application on photocatalytic

  • 1. State Key Laboratory of Transient Optics and Photonics, Xi’an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an 710119, China;
  • 2. Graduate University of Chinese Academy of Science, Beijing 100039, China
Fund Project:  Project supported by the State Key Program of National Natural Science Foundation of China(Grant No?60437020), the Young Scientists Fund of the National Natural Science Foundation of China(Grant No. 61108061), and the National High Technology Research and Development Program of China(Grant No?2007AA032452).

Abstract: In this paper, we report on a novel photocatalytic reactor having 547 pieces of TiO2-nanofilm-modified capillaries, which is derived from a microstructured polymer optical fiber(MPOF) preform. TiO2-film-modified MPOF preform is obtained by directly inhaling P25-doped TiO2 sol into array holes of MPOF and forming TiO2 film on their side walls. The MPOF perform acts as not only a light-transmitting media(rolling-up thin film waveguide, collecting and transmitting light into the TiO2thin film), but also a TiO2supporting and waste-water pipe to supply for photocatalytic degradation of toxic organic solute. Methylene blue(MB) is chosen as a model contaminant in water. The effects of loading quantity of TiO2, pH of MB and initial concentration of MB on photocatalytic degradation are investigated. The photocatalytic reactor has so large surface area for TiO2 loading that photodegradation efficiency is enhanced. As far as we know, the photocatalytic reactor with functions of collecting and transmitting light, conveying matter and loading catalyst has not been reported before.

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