Title: Study on Dynamic Model of Methyl Orange Photodegradation Reaction by Mo-doped TiO_2
Abstract: The Modoped TiO2 photocatalysts were prepared by doping molybdenum ion into TiO2 structure in a sol-gel process.The catalyst samples were then characterized with ultraviolet-visible diffuse reflectance spectra(DRS).Their photacatalytic activities were studied by photodegradation methyl orange in water under UV light irradiation.And L H model and GM(1,1) model were established to study dynamics of the methyl orange photodegradation using different Mo TiO2 catalysts.The three models were also compared.The experiments demonstrated that an optimum doping of Mo at 0.05 %mol achieved the highest MBT photodegradation rate when the temperature of calcination reaches to 500 ℃.The result also showed that there were errors when methyl orange photodegradation reaction was simulated by L-H model,and the results of Andrews robust regression were better than that of least squares approach.But by GM(1,1) model,it was demonstrated that the calculated results had a good coincidence with the experimental ones.
Publication Year: 2010
Publication Date: 2010-01-01
Language: en
Type: article
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