Photocatalytic Degradation of Methyl Orange on the Composite of TiO2 and Lanthanum Niobate

摘要：

In order to improve the photocatalytic activity of TiO2, the optimal catalytic conditions of TiO2 and niobate as well as the composite TiO2 and niobate photocatalyst were studied. 10 mg/l of methyl orange solution was taken as imitated waste water. The results indicated that the optimum dosage of TiO2 was 0.8 g/l. The optimal calcination temperature to prepare lanthanum niobate was 900 °C. n(La):n(Nb) was in the range of 0.6:1-3:1, and the photocatalyst prepared in the ratio of 1.4:1 showed the highest activity. The results also showed that, TiO2-lanthanum niobate composite prepared by solid-state reaction method showed better photocatalytic activity on methyl orange degradation compared with pure TiO2. After 120 minutes of irradiation, methyl orange degradation rate reached 94.2 ％ when using the composite photocatalyst.

关键词： Photocatalysis TiO2 Lanthanum Niobate Methyl orange

作者: Wenjie Zhanga Xin Sun Nan Ge

作者单位: School of Environmental and Chemical Engineering,Shenyang Ligong University,Shenyang 110159, China

会议类型: 国际会议

会议名称: 2011 International Conference on Advanced Material Research(ICAMR 2011)(2011年先进材料研究国际会议)

会议地点: 重庆

会议语种:英文

页码: 63-67

在线出版日期: 2011-01-21（万方平台首次上网日期，不代表论文的发表时间）