The research of the photocatalytic reaction system with multi-channel array under the synergistic effect of H2O2
WANG Changshun1,2, SHE Jiangbo2, ZHANG Guofang1*
(1 Key Laboratory of Applied Surface and Colloid Chemistry, MOE/College of Chemistry andChemical Engineering, Shaanxi Normal University, Xi′an 710119,Shaanxi, China 2 State Key Laboratory of Transient Optics and Photonics, Xi′ an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi′an 710119, Shaanxi, China)
Abstract:
A new type of photocatalytic degradation of organic wastewater system based on microstructured polymer optical fiber (MPOF) preform with 547 pores was designed, constructed, and each channel was covered with TiO2 film. The photocatalytic active TiO2 nanocrystal film that covered on the channels of the MPOF preform was obtained by microwave processing. Thus the inner surfaces of pores, used as the reactors for the photocatalyst,was expected to increase the photocatalyst - liquid contact area, and enhance the photocatalytic efficiency. Moreover, hydrogen peroxide was added as strong oxidant to synergy degradating Rhodamine B in solution. The effects of different initial hydrogen peroxide concentration and the dye concentration were investigated.The results indicated that the photocatalysis activity of the system was proved to possess the ability of degradating organic dye in the light.
KeyWords:
photocatalysis; microstructured polymer optical fiber preform; titanium dioxide; Rhodamine B
