PreparatioPreparation and photocatalytic activity of Nd3+and CTAB co-doped nanometer TiO2 thin films

摘要：

　　Pure TiO2,Nd3+doped TiO2 and Nd 3+-CTAB co-doped TiO2 nanometer thin films were prepared by the sol-gel technique with tetrabutyl titanate and neodymium nitrate as raw materials and surfactant cetyltrimethylammonium bromide (CTAB) as template.The films were characterized by X-ray diffraction (XRD),scanning electron microscopy (SEM) and UV-Visible absorbance spectroscopy (UV-Vis).The photocatalytic activity was evaluated by photocatalytic degradation of methyl orange.The results show that the all samples calcined at 500oC are all anatase,and there are slight red shifts of the Nd3+doped TiO2 and Nd3+-CTAB co-doped TiO2 films compared with pure TiO2 films and the red shift of Nd 3+-CTAB co-doped TiO2 is more obvious than that of Nd 3+ doped TiO2,which is beneficial to improve the photocatalytic efficiency.The1.0% Nd3+-CTAB co-doped TiO2 nanometer film calcined at 500℃ had excellent photocatalytic efficiencies and the degradation rate of the film is more than 90% after 120 min.

关键词： sol-gel TiO2 thin films Nd3+ and CTAB co-doped photocatalytic

作者: Lanfang Yao Xiong Tang Xinpei Yan Lin Li

作者单位: College of Science, University of Shanghai for Science and Technology, Shanghai 200093, China;Shanghai Key Laboratory of Special Artificial Microstructure Materials and Technology, Shanghai 200093, China

会议类型: 国际会议

会议名称: 中国微米纳米技术学会第14届学术年会、第3届国际年会暨第6届微米纳米技术“创新与产业化国际研讨与展览会(CSMNT2012 & ICMAN2012)

会议地点: 杭州

会议语种:英文

页码: 1-6

在线出版日期: 2012-11-04（万方平台首次上网日期，不代表论文的发表时间）