Ultrasonic Degradation of Methyl Orange in Presence of Y2O3 Doping Anatase TiO2 Catalyst
来源期刊：JOURNAL OF RARE EARTHS2004年增刊第1期
论文作者：Guo Baodong PAN Zhijun Wen Fuyu LIU Zhenrong ZHANG Zhaohong Wang Jun
Key words：Y2O3 doping anatase TiO2 catalyst; ultrasonic degradation; methyl orange; rare earths;
Abstract: Various affecting factors and degradation mechanism were studied on ultrasonic degradation of methyl orange adopting Y2O3 doping anatase TiO2 catalyst prepared in laboratory.In the experiment, the UV-VIS spectrophotometer was used to follow and inspect the degradation process of methyl orange.The results indicate that the ultrasonic degradation ratios of methyl orange in the presence of anatase TiO2 catalyst are much better than those without catalyst.Moreover, the catalytic performance of Y2O3 doping anatase TiO2 catalyst is obviously higher than that of anatase TiO2 catalyst without doping.The optimal conditions were adopted in this work and the degradation and COD elimination ratio of methyl orange got to98% and 99.0% in 90 min, respectively.
Guo Baodong1，PAN Zhijun1，Wen Fuyu1，LIU Zhenrong1，ZHANG Zhaohong1，Wang Jun1
(1.Department of Chemistry, Liaoning University, Shenyang, 110036 China)
Abstract:Various affecting factors and degradation mechanism were studied on ultrasonic degradation of methyl orange adopting Y2O3 doping anatase TiO2 catalyst prepared in laboratory.In the experiment, the UV-VIS spectrophotometer was used to follow and inspect the degradation process of methyl orange.The results indicate that the ultrasonic degradation ratios of methyl orange in the presence of anatase TiO2 catalyst are much better than those without catalyst.Moreover, the catalytic performance of Y2O3 doping anatase TiO2 catalyst is obviously higher than that of anatase TiO2 catalyst without doping.The optimal conditions were adopted in this work and the degradation and COD elimination ratio of methyl orange got to98% and 99.0% in 90 min, respectively.
Key words:Y2O3 doping anatase TiO2 catalyst; ultrasonic degradation; methyl orange; rare earths;
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