Degradation of Nitrobenzene by Nano-TiO2/PVDF Membrane Catalytic Ozonation

Proceedings of the 2011 International Conference on Informatics, Cybernetics, and Computer Engineering (ICCE2011) November 19–20, 2011, Melbourne, Australia

Advances in Intelligent and Soft Computing, 2012, Volume 112/2012, 763-769

Degradation of Nitrobenzene by Nano-TiO2/PVDF Membrane Catalytic Ozonation

Mo-Jie Sun, Chong Zhang, Chao Yang and Ting Zhang

Abstract

Nano-TiO2/PVDF membrane was studied as a catalyst using oxidization of nitrobenzene by ozonatione. Results demonstrate that the removal rate of nitrobenzene increased to 20% in the presence of the catalyst.

The ozone dosage, initial concentration of nitrobenzene, area of Nano-TiO2/PVDF membrane and pH value has been considered for optimized catalyst properties. An increase of the removal rate of nitrobenzene caused by increasing ozone dosage, initial concentration of nitrobenzene and Nano-TiO2/PVDF membrane area has been demonstrated.  Experimenttal results suggest that the best pH value is 10.  Another finding was that the catalytic effect of Nano-TiO2/PVDF membrane is also sensitive to tert-butyl alcohol.  This suggests a ·OH radical reaction mechanism.

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